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  • *Biological Evolution
  • American Association for the Advancement of Science (AAAS)  (43)
  • American Meteorological Society
  • MDPI Publishing
  • 1985-1989  (43)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (43)
  • American Meteorological Society
  • MDPI Publishing
Years
Year
  • 1
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    Species questions in modern human origins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-03-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Mar 31;243(4899):1666-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2928802" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; *Biological Evolution ; Europe ; *Fossils ; Hominidae/*anatomy & histology ; Humans ; *Paleontology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    What makes bigger brains? (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1544.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740901" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/*anatomy & histology ; Ecology ; Genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Taxonomic differences in the scaling of brain on body weight among mammals (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: Theories for the evolution of brain weight in mammals suggest that closely related species have diverged largely as a result of selection for differences in body weight, but that differences among more distantly related species have arisen due to greater net directional selection on brain weight. This pattern of changing selection causes brain weight to evolve more slowly than body weight among closely related species, such as those in the same genus, than among more distantly related species, such as those from different families or orders; a phenomenon known as the "taxon-level effect." Thus, brain weight differs more for a given difference in body weight as the species compared are more distantly related. An alternative explanation for the taxon-level effect is proposed. Distantly related species are more likely to inhabit different ecological conditions than are more closely related species. Where the taxon-level effect occurs, brain weight appears to have evolved in response to the demands of these different ecological conditions. As a consequence, brain weight differs more among distantly related species, for any given difference in body weight, than among closely related species. This effect, rather than a progressive pattern of changing selection pressures, may account for the taxon-level effect in mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pagel, M D -- Harvey, P H -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1589-93.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Oxford, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2740904" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Artiodactyla/anatomy & histology ; *Biological Evolution ; *Body Weight ; Brain/*anatomy & histology ; Carnivora/anatomy & histology ; Chiroptera/anatomy & histology ; Ecology ; Mammals/*anatomy & histology/classification ; Models, Biological ; Organ Size ; Primates/anatomy & histology ; Regression Analysis ; Rodentia/anatomy & histology ; Selection, Genetic ; Species Specificity ; Statistics as Topic
    Print ISSN: 0036-8075
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  • 4
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    Fitness differences among remnant populations of the endangered sonoran topminnow (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-01
    Description: Four correlates of fitness were measured in three stocks of the endangered Sonoran topminnow, Poeciliopsis occidentalis, from Arizona. Survival, growth, early fecundity, and developmental stability were greatest in laboratory-reared fish from the most heterozygous natural population studied. Conversely, all four traits were poorest in fish from a population with no electrophoretically detectable genetic variation. These results emphasize the need for genetic as well as demographic information for the development of comprehensive species recovery programs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Quattro, J M -- Vrijenhoek, R C -- New York, N.Y. -- Science. 1989 Sep 1;245(4921):976-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Theoretical and Applied Genetics, Cook College, Rutgers University, New Brunswick, NJ 08903.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772650" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arizona ; *Biological Evolution ; Cyprinodontiformes/*genetics ; Female ; Fertility ; Genetic Variation ; Male ; Poecilia/anatomy & histology/*genetics ; Species Specificity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Finite social space, evolutionary pathways, and reconstructing hominid behavior (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-02-17
    Description: Changes in social behavior were a key aspect of human evolution, and yet it is notoriously difficult for paleobiologists to determine patterns of social evolution. By defining the limited number of distributional strategies available to members of each sex of any species and investigating the conditions under which they may occur and change, the social behavior of different hominid taxa may be reconstructed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Foley, R A -- Lee, P C -- New York, N.Y. -- Science. 1989 Feb 17;243(4893):901-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Cambridge, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2493158" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior ; *Biological Evolution ; Female ; Haplorhini/genetics ; Hominidae/*genetics ; Humans ; Male ; Models, Genetic ; *Social Behavior
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Evolution of urea synthesis in vertebrates: the piscine connection (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-06
    Description: Elasmobranch fishes, the coelacanth, estivating lungfish, amphibians, and mammals synthesize urea by the ornithine-urea cycle; by comparison, urea synthetic activity is generally insignificant in teleostean fishes. It is reported here that isolated liver cells of two teleost toadfishes, Opsanus beta and Opsansus tau, synthesize urea by the ornithine-urea cycle at substantial rates. Because toadfish excrete ammonia, do not use urea as an osmolyte, and have substantial levels of urease in their digestive systems, urea may serve as a transient nitrogen store, forming the basis of a nitrogen conservation shuttle system between liver and gut as in ruminants and hibernators. Toadfish synthesize urea using enzymes and subcellular distributions similar to those of elasmobranchs: glutamine-dependent carbamoyl phosphate synthethase (CPS III) and mitochondrial arginase. In contrast, mammals have CPS I (ammonia-dependent) and cytosolic arginase. Data on CPS and arginases in other fishes, including lungfishes and the coelacanth, support the hypothesis that the ornithine-urea cycle, a monophyletic trait in the vertebrates, underwent two key changes before the evolution of the extant lungfishes: a switch from CPS III to CPS I and replacement of mitochondrial arginase by a cytosolic equivalent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mommsen, T P -- Walsh, P J -- New York, N.Y. -- Science. 1989 Jan 6;243(4887):72-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology and Living Resources, Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, FL 33149.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2563172" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arginase/metabolism ; *Biological Evolution ; Carbamoyl-Phosphate Synthase (Ammonia)/metabolism ; Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)/metabolism ; Fishes/*metabolism ; Glutamate-Ammonia Ligase/metabolism ; Liver/metabolism ; Species Specificity ; Urea/*biosynthesis ; Vertebrates/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 7
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    Chromosomal location and evolutionary rate variation in enterobacterial genes (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-10
    Description: The basal rate of DNA sequence evolution in enterobacteria, as seen in the extent of divergence between Escherichia coli and Salmonella typhimurium, varies greatly among genes, even when only "silent" sites are considered. The degree of divergence is clearly related to the level of gene expression, reflecting constraints on synonymous codon choice. However, where this constraint is weak, among genes not expressed at high levels, divergence is also related to the chromosomal location of the gene; it appears that genes furthest away from oriC, the origin of replication, have a mutation rate approximately two times that of genes near oriC.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sharp, P M -- Shields, D C -- Wolfe, K H -- Li, W H -- New York, N.Y. -- Science. 1989 Nov 10;246(4931):808-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Trinity College, Dublin, Ireland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2683084" target="_blank"〉PubMed〈/a〉
    Keywords: Bias (Epidemiology) ; *Biological Evolution ; *Chromosomes, Bacterial ; Codon/genetics ; DNA Repair ; DNA Replication ; DNA, Bacterial/genetics ; Enterobacteriaceae/*genetics/ultrastructure ; Escherichia coli/genetics/ultrastructure ; Gene Expression Regulation, Bacterial ; Genes, Bacterial ; *Mutation ; Regression Analysis ; Salmonella typhimurium/genetics/ultrastructure
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  • 8
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    Human origins (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-09-22
    Description: New discoveries combine to indicate that all the major steps in human evolution took place in Africa. Skeletal analysis of oldest human forbears around 3 million years ago reveal many anatomical similarities to African Great Apes. These and biochemical resemblances indicate a common ancestry for humans and apes, perhaps only a few million years earlier. Enlarged knowledge through recent recovery of skeletons of several successive stages in the line leading to modern peoples shows that many attributes or skills by which we define humanity arose much more recently in time than heretofore believed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simons, E L -- New York, N.Y. -- Science. 1989 Sep 22;245(4924):1343-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Duke University Center, Durham, NC 27705.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2506640" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; *Biological Evolution ; *Haplorhini/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    How old is the genetic code? Statistical geometry of tRNA provides an answer (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-12
    Description: The age of the molecular organization of life as expressed in the genetic code can be estimated from experimental data. Comparative sequence analysis of transfer RNA by the method of statistical geometry in sequence space suggests that about one-third of the present transfer RNA sequence divergence was present at the urkingdom level about the time when archaebacteria separated from eubacteria. It is concluded that the genetic code is not older than, but almost as old as our planet. While this result may not be unexpected, it was not clear until now that interpretable data exist that permit inferences about such early stages of life as the establishment of the genetic code.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eigen, M -- Lindemann, B F -- Tietze, M -- Winkler-Oswatitsch, R -- Dress, A -- von Haeseler, A -- New York, N.Y. -- Science. 1989 May 12;244(4905):673-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur biophysikalische Chemie, Gottingen, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2497522" target="_blank"〉PubMed〈/a〉
    Keywords: Anticodon ; Archaea/genetics ; Base Sequence ; *Biological Evolution ; Codon ; Computer Simulation ; Eubacterium/genetics ; *Genetic Code ; Mutation ; Nucleic Acid Conformation ; Phylogeny ; *RNA, Transfer ; Statistics as Topic ; Time Factors
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    California backs evolution education (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1989 Nov 17;246(4932):880.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814509" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; California ; *Curriculum ; *Education
    Print ISSN: 0036-8075
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  • 11
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    Evolution and family homicide (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-01-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1989 Jan 27;243(4890):462-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2911752" target="_blank"〉PubMed〈/a〉
    Keywords: Adoption ; *Biological Evolution ; *Family ; *Homicide ; Humans
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Genetic and linguistic evolution (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cavalli-Sforza, L -- Piazza, A -- Menozzi, P -- Mountain, J -- New York, N.Y. -- Science. 1989 Jun 9;244(4909):1128-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2727697" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; *Genetics, Medical ; Humans ; *Language ; Models, Genetic
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  • 13
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    Intron existence predated the divergence of eukaryotes and prokaryotes (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-25
    Description: Nucleotide sequences for the nuclear genes encoding chloroplast (GapA and GapB) and cytosolic (GapC) glyceraldehyde-3-phosphate dehydrogenases (GAPDHs) from Arabidopsis thaliana were determined. Comparison of nucleotide sequences indicates that the divergence of chloroplast and cytosolic GAPDH genes preceded the divergence of prokaryotes and eukaryotes. In addition, some intron-exon junctions are conserved among GapB, GapC, and chicken GAPDH genes. These results provide evidence at the molecular level to support the idea that introns existed before the divergence of prokaryotes and eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shih, M C -- Heinrich, P -- Goodman, H M -- New York, N.Y. -- Science. 1988 Nov 25;242(4882):1164-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3055302" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; *Biological Evolution ; *Cells ; Chickens/genetics ; Chloroplasts/enzymology ; Cytosol/enzymology ; Escherichia coli/genetics ; *Eukaryotic Cells ; Exons ; Glyceraldehyde-3-Phosphate Dehydrogenases/*genetics/metabolism ; *Introns ; Molecular Sequence Data ; NAD/metabolism ; NADP/metabolism ; Plants/genetics ; *Prokaryotic Cells
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  • 14
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    Evolution's link to development explored (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1988 May 13;240(4854):880-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363370" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Gene Expression Regulation ; *Genes ; *Growth ; Plant Development ; Plants/genetics
    Print ISSN: 0036-8075
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  • 15
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    Genetic and fossil evidence for the origin of modern humans (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-03-11
    Description: The origin of living Homo sapiens has once again been the subject of much debate. Genetic data on present human population relationships and data from the Pleistocene fossil hominid record are used to compare two contrasting models for the origin of modern humans. Both genetics and paleontology support a recent African origin for modern humans rather than a long period of multiregional evolution accompanied by gene flow.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stringer, C B -- Andrews, P -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1263-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Palaeontology, British Museum (Natural History), London, England.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3125610" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; *Biological Evolution ; China ; Czechoslovakia ; *Fossils ; Haplorhini/anatomy & histology/*genetics ; Humans ; *Paleontology ; Skull/*anatomy & histology
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  • 16
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    Kin selection and the evolution of monogamy (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-17
    Description: A two-locus genetic model is studied in which one locus controls the tendency of individuals to act altruistically toward siblings and the other locus controls the mating habits of females. It is demonstrated that genetic variation at the altruism locus is often sufficient to induce an increase in the frequency of genes that cause females to produce all of their offspring with a single mate. This occurs because of nonrandom associations that develop between genes that cause altruism and those that affect female mating behavior. The results provide a new explanation for the evolution of monogamy, and they suggest a previously unexplored mechanism for the evolution of a variety of other behavioral traits as well.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peck, J R -- Feldman, M W -- GM 10452/GM/NIGMS NIH HHS/ -- GM 28016/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1672-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3381088" target="_blank"〉PubMed〈/a〉
    Keywords: *Altruism ; Animals ; *Biological Evolution ; Female ; Genotype ; Humans ; Male ; Mathematics ; Polymorphism, Genetic ; Recombination, Genetic ; *Sexual Behavior, Animal ; *Sibling Relations
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  • 17
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    Directional selection and the evolution of breeding date in birds (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-06
    Description: In many bird species, those pairs that breed earlier in the season have higher reproductive success than those that breed later. Since breeding date is known to be heritable, it is unclear why it does not evolve to an earlier time. Under assumptions outlined by Fisher, a model is developed that shows how breeding date may have considerable additive genetic variance, appear to be under directional selection, and yet not evolve. These results provide a general explanation for a persistent correlation of fitness with a variety of traits in natural populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Price, T -- Kirkpatrick, M -- Arnold, S J -- 1R01GM3549201/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 May 6;240(4853):798-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, San Diego, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3363360" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds/*physiology ; Female ; Fertility ; Genetic Variation ; Nutritional Status ; *Reproduction ; *Seasons ; *Selection, Genetic ; Time Factors
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  • 18
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    Baltimore's "fiery blast" (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cilley, J H Sr -- New York, N.Y. -- Science. 1988 Apr 22;240(4851):375.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2895961" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Welfare ; *Biological Evolution ; Congresses as Topic ; Religion and Science
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    DNA clock conflict continues (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1988 Sep 30;241(4874):1756-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3175618" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Base Sequence ; *Biological Evolution ; DNA/*genetics ; Hominidae/*genetics ; Humans ; Nucleic Acid Hybridization ; *Sequence Homology, Nucleic Acid
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    A heresy in evolutionary biology (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1431.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3047870" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Escherichia coli/*genetics ; *Mutation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    Molecular clocks turn a quarter century (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-02-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1988 Feb 5;239(4840):561-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3340843" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; DNA/genetics ; Humans ; *Models, Genetic ; Time Factors
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 22
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    Methods and molecules (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Farris, J S -- Kluge, A G -- New York, N.Y. -- Science. 1988 Nov 4;242(4879):651.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3187506" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; DNA/*genetics ; Humans ; Phylogeny
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  • 23
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    My close cousin the chimpanzee (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1987 Oct 16;238(4825):273-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3116670" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Biological Evolution ; DNA/genetics ; Dental Enamel/anatomy & histology ; Gait ; Haplorhini/anatomy & histology/*genetics ; Humans ; Metacarpophalangeal Joint/anatomy & histology ; Molar ; Nucleic Acid Hybridization ; Pan troglodytes/anatomy & histology/*genetics ; Sequence Homology, Nucleic Acid
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  • 24
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    Four legs bad, two legs good (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-02-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1987 Feb 27;235(4792):969-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3823869" target="_blank"〉PubMed〈/a〉
    Keywords: Anthropology ; *Biological Evolution ; Foot ; Gait ; Humans ; *Locomotion
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  • 25
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    The unmasking of mitochondrial Eve (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1987 Oct 2;238(4823):24-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3116666" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; DNA, Mitochondrial/*genetics ; Haplorhini/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 26
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    Evolutionary and somatic selection of the antibody repertoire in the mouse (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-11-20
    Description: The repertoire of antibody variable (V) regions has been subject to evolutionary selection, affecting both the diversity of V region genes in the germline and their expression in the B lymphocyte population and its subsets. In ontogeny, contact with an antigen leads to the expansion of B cells expressing antibodies complementary to it. In a defined phase of B cell differentiation, new sets of V regions are generated from the existing repertoire through somatic hypermutation. Cells carrying advantageous antibody mutants are selected into the memory compartment and produce a stable secondary response upon reexposure to the antigen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rajewsky, K -- Forster, I -- Cumano, A -- New York, N.Y. -- Science. 1987 Nov 20;238(4830):1088-94.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genetics, University of Cologne, Koln, FRG.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3317826" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/*genetics ; *Antibody Diversity ; B-Lymphocytes/*physiology ; *Biological Evolution ; *Genes, Immunoglobulin ; Genes, Switch ; Immunity ; Immunoglobulin Isotypes/genetics ; Immunoglobulin Variable Region/genetics ; Mice ; Mutation ; Selection, Genetic
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    The evolution of catalytic function (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-11-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sharp, P A -- Eisenberg, D -- New York, N.Y. -- Science. 1987 Nov 6;238(4828):729-30, 807.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cancer Research, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2445035" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Catalysis ; Escherichia coli/genetics ; Proteins/genetics ; RNA/*genetics ; Viruses/genetics
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  • 28
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    Environmental trends in extinction during the Paleozoic (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-01-02
    Description: Extinction intensities calculated from 505 Paleozoic marine assemblages divided among six environmental zones and 40 stratigraphic intervals indicate that whole communities exhibit increasing extinction offshore but that genera within individual taxonomic classes tend to have their highest extinction onshore. The offshore trend at the community level results from a concentration of genera in classes with low characteristic extinction rates in nearshore environments. This finding is consistent with the ecologic expectation that organisms inhabiting unpredictably fluctuating environments should suffer more extinction than counterparts living under more predictably equitable conditions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sepkoski, J J Jr -- DEB 81-08890/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1987 Jan 2;235:64-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of the Geophysical Sciences, University of Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11539724" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Classification ; Ecosystem ; *Environment ; *Fossils ; Invertebrates ; *Marine Biology ; Mollusca ; North America ; *Paleontology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Paleolithic diet, evolution, and carcinogens (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, D L -- New York, N.Y. -- Science. 1987 Dec 18;238(4834):1633-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3120316" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Carcinogens ; *Diet ; *Haplorhini ; Humans ; *Paleontology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    When does homology mean something else? (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1987 Sep 25;237(4822):1570.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3629257" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Sequence ; *Biological Evolution ; *Sequence Homology, Nucleic Acid ; Terminology as Topic
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    Neuronal circuits and evolution (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-06-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, B R -- Leise, E M -- New York, N.Y. -- Science. 1987 Jun 26;236(4809):1681-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603007" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; Humans ; Nervous System/*anatomy & histology
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    The origin of the modern human mind (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-05-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1987 May 8;236(4802):668-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576191" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; Brain/*physiology ; Esthetics ; Humans ; Language ; Thinking
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    Periodic extinction of families and genera (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-02-21
    Description: Eight major episodes of biological extinction of marine families over the past 250 million years stand significantly above local background (P 〈 0.05). These events are more pronounced when analyzed at the level of genus, and generic data exhibit additional apparent extinction events in the Aptian (Cretaceous) and Pliocene (Tertiary) Stages. Time-series analysis of these records strongly suggests a 26-million-year periodicity. This conclusion is robust even when adjusted for simultaneous testing of many trial periods. When the time series is limited to the four best-dated events (Cenomanian, Maestrichtian, upper Eocene, and middle Miocene), the hypothesis of randomness is also rejected for the 26-million-year period (P 〈 0.0002).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raup, D M -- Sepkoski, J J Jr -- New York, N.Y. -- Science. 1986 Feb 21;231:833-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geophysical Sciences, University of Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11542060" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils ; Geological Phenomena ; Geology ; Marine Biology ; Paleontology/*statistics & numerical data ; *Periodicity
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    Biological extinction in earth history (1986)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1986-03-28
    Description: Virtually all plant and animal species that have ever lived on the earth are extinct. For this reason alone, extinction must play an important role in the evolution of life. The five largest mass extinctions of the past 600 million years are of greatest interest, but there is also a spectrum of smaller events, many of which indicate biological systems in profound stress. Extinction may be episodic at all scales, with relatively long periods of stability alternating with short-lived extinction events. Most extinction episodes are biologically selective, and further analysis of the victims and survivors offers the greatest chance of deducing the proximal causes of extinction. A drop in sea level and climatic change are most frequently invoked to explain mass extinctions, but new theories of collisions with extraterrestrial bodies are gaining favor. Extinction may be constructive in a Darwinian sense or it may only perturb the system by eliminating those organisms that happen to be susceptible to geologically rare stresses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raup, D M -- New York, N.Y. -- Science. 1986 Mar 28;231:1528-33.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of the Geophysical Sciences, University of Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11542058" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Earth (Planet) ; Eukaryota ; *Fossils ; Geological Phenomena ; Geology ; Invertebrates ; Meteoroids ; Minor Planets ; *Paleontology ; Periodicity ; Reptiles
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    Nuclear and mitochondrial DNA comparisons reveal extreme rate variation in the molecular clock (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-10-10
    Description: The discovery that the rate of evolution of vertebrate mitochondrial DNA is rapid, compared to the rate for vertebrate nuclear DNA, has resulted in its widespread use in evolutionary studies. Comparison of mitochondrial and nuclear DNA divergences among echinoid and vertebrate taxa of similar ages indicates that the rapid rate of vertebrate mitochondrial DNA evolution is, in part, an artifact of a widely divergent rate of nuclear DNA evolution. This disparity in relative rates of mitochondrial and nuclear DNA divergence suggests that the controls and constraints under which the mitochondrial and nuclear genomes operate are evolving independently, and provides evidence that is independent of fossil dating for a robust rejection of a generalized molecular clock hypothesis of DNA evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vawter, L -- Brown, W M -- GM30144/GM/NIGMS NIH HHS/ -- RR07050/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1986 Oct 10;234(4773):194-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3018931" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Biological Evolution ; *Dna ; DNA Restriction Enzymes ; *DNA, Mitochondrial ; Humans ; Primates/genetics ; Sea Urchins/*genetics ; Species Specificity
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    New fossil upsets human family (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1986 Aug 15;233(4765):720-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3090683" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; *Fossils ; Haplorhini/*anatomy & histology ; Humans ; Kenya ; Models, Genetic ; *Paleontology ; Skull/*anatomy & histology
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    Punctuated equilibrium (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levinton, J -- New York, N.Y. -- Science. 1986 Mar 28;231(4745):1490.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3952491" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution
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    Rates of DNA sequence evolution differ between taxonomic groups (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-21
    Description: The mutation rates of DNA sequences during evolution can be estimated from interspecies DNA sequence differences by assaying changes that have little or no effect on the phenotype (neutral mutations). Examination of available measurements shows that rates of DNA change of different phylogenetic groups differ by a factor of 5. The slowest rates are observed for higher primates and some bird lineages, while faster rates are seen in rodents, sea urchins, and drosophila. The rate of DNA sequence change has decreased markedly during primate evolution. The contrast in rates of DNA sequence change is probably due to evolutionary variation and selection of biochemical mechanisms such as DNA replication or repair.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Britten, R J -- GM34031/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1986 Mar 21;231(4744):1393-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3082006" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Base Sequence ; *Biological Evolution ; Cricetinae ; DNA/*genetics ; DNA Repair ; DNA Replication ; Drosophila ; Gene Frequency ; Genes ; Genetics, Population ; Gorilla gorilla ; Haplorhini ; Humans ; Hylobates ; Mice ; Nucleic Acid Hybridization ; Pan troglodytes ; Phenotype ; Rabbits ; Rats ; Species Specificity
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    Evolution of mechanisms controlling mating behavior (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-10
    Description: The proximate mechanisms underlying mating behavior in naturally occurring species can be fundamentally different from those in more commonly studied laboratory and domesticated forms. In naturally occurring species, reproductive strategies are much more diverse, and mechanisms controlling behavior are correspondingly diverse. A variety of hormonal, environmental, and social cues can be used to activate mating behavior. Which cues are used by particular species depends on differences in environmental and physiological constraints imposed by particular reproductive strategies. Study of this diversity of mechanisms promises to identify specific selective forces that have shaped their evolution. This evolutionary perspective leads to widely applicable generalizations and provides a useful context within which to conceptualize differences between species, populations, and individuals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crews, D -- Moore, M C -- New York, N.Y. -- Science. 1986 Jan 10;231(4734):121-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3941893" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birds ; Brain/physiology ; Copulation/physiology ; Drosophila ; Female ; Gonadal Steroid Hormones/physiology ; Lizards ; Male ; Mammals ; Reproduction ; Sex Differentiation ; *Sexual Behavior, Animal ; Shrews ; Snakes
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    Genes-in-pieces revisited (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-05-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, W -- New York, N.Y. -- Science. 1985 May 17;228(4701):823-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4001923" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Base Sequence ; *Biological Evolution ; *Genes ; Glyceraldehyde-3-Phosphate Dehydrogenases/genetics ; Humans ; Pyruvate Kinase/genetics ; *RNA Splicing ; Receptors, LDL/genetics ; Triose-Phosphate Isomerase/genetics ; Zea mays/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Tooth enamel tells a complex story (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1985 May 10;228(4700):707.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3992241" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Dental Enamel/*anatomy & histology ; Gorilla gorilla ; Hominidae ; Humans ; Pan troglodytes
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Gram-positive bacteria: possible photosynthetic ancestry (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-01-01
    Description: A 16S ribosomal RNA gene has been sequenced from Heliobacterium chlorum, the recently discovered photosynthetic bacterium that contains a novel form of chlorophyll. Comparisons with other 16S ribosomal RNA sequences show that the organism belongs to the Gram-positive bacteria (one of ten eubacterial "phyla")--more precisely to the so-called low G + C (G, guanine; C, cytosine) subdivision thereof. This brings to five the number of such phyla that contain photosynthetic species, the other four being the purple bacteria and relatives, the green sulfur bacteria, the green nonsulfur bacteria, and the cyanobacteria. The finding suggests that Gram-positive bacteria may be of photosynthetic ancestry, and it strengthens the case for a common photosynthetic ancestry for all eubacteria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Woese, C R -- Debrunner-Vossbrinck, B A -- Oyaizu, H -- Stackebrandt, E -- Ludwig, W -- New York, N.Y. -- Science. 1985;229:762-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Development, University of Illinois, Urbana 61801, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11539659" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; Base Sequence ; *Biological Evolution ; Chlorobi ; Chlorophyll/analysis ; Cyanobacteria ; Cytosine/analysis ; DNA, Bacterial/analysis/chemistry/genetics ; Gram-Positive Bacteria/*classification/genetics/physiology ; Guanine/analysis ; Molecular Sequence Data ; Oligonucleotides/analysis/chemistry/genetics ; Photosynthesis/*genetics/physiology ; RNA, Bacterial/analysis/chemistry/genetics ; RNA, Ribosomal, 16S/analysis/chemistry/*genetics ; *Sequence Homology, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    A human Y-linked DNA polymorphism and its potential for estimating genetic and evolutionary distance (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-12-20
    Description: A human DNA sequence (p12f2), derived from a partial Y-chromosome genomic library and showing homology with the X and Y chromosomes and with an undetermined number of autosomes, detected two Y-specific restriction fragment length variants on male DNA that had been digested with Taq I and Eco RI. These variants may have been generated through a deletion-insertion mechanism and their pattern of holoandric transmission indicates that they represent a two-allele Y-linked polymorphism (RFLP). By means of DNA from patients with inborn deletions in chromosome Y, this polymorphic DNA site was mapped to the interval Yq11.1-Yq11.22. The frequency of the rarest allele was about 35 percent in Algerian and Sardinian human males, whereas it was only 4 percent among Northern Europeans. The p12f2 probe also detected Y-specific DNA fragments in the gorilla and chimpanzee. In view of the monosomy of the Y chromosome in mammalian species, Y-linked RFLP's may prove to be more useful than autosomal or X-linked markers in estimating genetic distances within and between species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Casanova, M -- Leroy, P -- Boucekkine, C -- Weissenbach, J -- Bishop, C -- Fellous, M -- Purrello, M -- Fiori, G -- Siniscalco, M -- HD 16782/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1985 Dec 20;230(4732):1403-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2999986" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Biological Evolution ; DNA Restriction Enzymes ; *Genetic Variation ; Humans ; *Polymorphism, Genetic ; Sequence Homology, Nucleic Acid ; *Y Chromosome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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