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  • 1
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    A high-resolution radiation hybrid map of the human genome draft sequence (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-22
    Description: We have constructed a physical map of the human genome by using a panel of 90 whole-genome radiation hybrids (the TNG panel) in conjunction with 40,322 sequence-tagged sites (STSs) derived from random genomic sequences as well as expressed sequences. Of 36,678 STSs on the TNG radiation hybrid map, only 3604 (9.8%) were absent from the unassembled draft sequence of the human genome. Of 20,030 STSs ordered on the TNG map as well as the assembled human genome draft sequence and the Celera assembled human genome sequence, 36% of the STSs had a discrepant order between the working draft sequence and the Celera sequence. The TNG map order was identical to one of the two sequence orders in 60% of these discrepant cases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olivier, M -- Aggarwal, A -- Allen, J -- Almendras, A A -- Bajorek, E S -- Beasley, E M -- Brady, S D -- Bushard, J M -- Bustos, V I -- Chu, A -- Chung, T R -- De Witte, A -- Denys, M E -- Dominguez, R -- Fang, N Y -- Foster, B D -- Freudenberg, R W -- Hadley, D -- Hamilton, L R -- Jeffrey, T J -- Kelly, L -- Lazzeroni, L -- Levy, M R -- Lewis, S C -- Liu, X -- Lopez, F J -- Louie, B -- Marquis, J P -- Martinez, R A -- Matsuura, M K -- Misherghi, N S -- Norton, J A -- Olshen, A -- Perkins, S M -- Perou, A J -- Piercy, C -- Piercy, M -- Qin, F -- Reif, T -- Sheppard, K -- Shokoohi, V -- Smick, G A -- Sun, W L -- Stewart, E A -- Fernando, J -- Tejeda -- Tran, N M -- Trejo, T -- Vo, N T -- Yan, S C -- Zierten, D L -- Zhao, S -- Sachidanandam, R -- Trask, B J -- Myers, R M -- Cox, D R -- R01 GM062628/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Feb 16;291(5507):1298-302.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Stanford Human Genome Center, Stanford University School of Medicine, 975 California Avenue, Palo Alto, CA 94304, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11181994" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Chromosomes, Artificial, Bacterial ; Computational Biology ; Contig Mapping ; Databases, Factual ; *Genome, Human ; Human Genome Project ; Humans ; In Situ Hybridization, Fluorescence ; Physical Chromosome Mapping ; Polymerase Chain Reaction ; *Radiation Hybrid Mapping ; *Sequence Analysis, DNA ; Sequence Tagged Sites ; Software
    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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    Chimpanzee and human Y chromosomes are remarkably divergent in structure and gene content (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-01-15
    Description: The human Y chromosome began to evolve from an autosome hundreds of millions of years ago, acquiring a sex-determining function and undergoing a series of inversions that suppressed crossing over with the X chromosome. Little is known about the recent evolution of the Y chromosome because only the human Y chromosome has been fully sequenced. Prevailing theories hold that Y chromosomes evolve by gene loss, the pace of which slows over time, eventually leading to a paucity of genes, and stasis. These theories have been buttressed by partial sequence data from newly emergent plant and animal Y chromosomes, but they have not been tested in older, highly evolved Y chromosomes such as that of humans. Here we finished sequencing of the male-specific region of the Y chromosome (MSY) in our closest living relative, the chimpanzee, achieving levels of accuracy and completion previously reached for the human MSY. By comparing the MSYs of the two species we show that they differ radically in sequence structure and gene content, indicating rapid evolution during the past 6 million years. The chimpanzee MSY contains twice as many massive palindromes as the human MSY, yet it has lost large fractions of the MSY protein-coding genes and gene families present in the last common ancestor. We suggest that the extraordinary divergence of the chimpanzee and human MSYs was driven by four synergistic factors: the prominent role of the MSY in sperm production, 'genetic hitchhiking' effects in the absence of meiotic crossing over, frequent ectopic recombination within the MSY, and species differences in mating behaviour. Although genetic decay may be the principal dynamic in the evolution of newly emergent Y chromosomes, wholesale renovation is the paramount theme in the continuing evolution of chimpanzee, human and perhaps other older MSYs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3653425/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3653425/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hughes, Jennifer F -- Skaletsky, Helen -- Pyntikova, Tatyana -- Graves, Tina A -- van Daalen, Saskia K M -- Minx, Patrick J -- Fulton, Robert S -- McGrath, Sean D -- Locke, Devin P -- Friedman, Cynthia -- Trask, Barbara J -- Mardis, Elaine R -- Warren, Wesley C -- Repping, Sjoerd -- Rozen, Steve -- Wilson, Richard K -- Page, David C -- R01 HG000257/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Jan 28;463(7280):536-9. doi: 10.1038/nature08700. Epub 2010 Jan 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Whitehead Institute, and Department of Biology, Massachusetts Institute of Technology, 9 Cambridge Center, Cambridge, Massachusetts 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20072128" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes, Human, Pair 21/genetics ; Chromosomes, Human, Y/*genetics ; DNA/chemistry/genetics ; Genes/*genetics ; Humans ; Male ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Pan troglodytes/*genetics ; Sequence Homology, Nucleic Acid ; Y Chromosome/*genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Estimating genomic distance from DNA sequence location in cell nuclei by a random walk model (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-09-04
    Description: The folding of chromatin in interphase cell nuclei was studied by fluorescent in situ sequences chromatin according to a random walk model. This model provides the basis for calculating the spacing of sequences along the linear DNA molecule from interphase distance measurements. An interphase mapping strategy based on this model was tested with 13 probes from a 4-megabase pair (Mbp) region of chromosome 4 containing the Huntington disease locus. The results confirmed the locations of the probes and showed that the remaining gap in the published maps of this region is negligible in size. Interphase distance measurements should facilitate construction of chromosome maps with an average marker density of one per 100 kbp, approximately ten times greater than that achieved by hybridization to metaphase chromosome. achieved by hybridization to metaphase chromosomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van den Engh, G -- Sachs, R -- Trask, B J -- HG00256/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1992 Sep 4;257(5075):1410-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Genome Center, Lawrence Livermore National Laboratory, Livermore, CA 94550.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1388286" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Nucleus/*chemistry ; Chromatin/*chemistry ; Chromosome Mapping ; Chromosomes, Human, Pair 4 ; Cosmids ; DNA/*chemistry ; DNA Probes ; Humans ; Huntington Disease/genetics ; *Interphase ; Metaphase ; Nucleic Acid Hybridization
    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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  • 4
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    High-speed chromosome sorting (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-16
    Description: Dual-beam high-speed sorting has been developed to facilitate purification of chromosomes based on DNA staining with the fluorescent dyes Hoechst 33258 and chromomycin A3. Approximately 200 chromosomes per second of two types can be sorted from a suspension of chromosomes isolated from human lymphoblasts while fluorescent objects (chromosomes, debris fragments, chromosome clumps, and nuclei) are processed at the rate of about 20,000 per second. This sorting rate is approximately ten times that possible with conventional sorters. Chromosomes of a single type can be sorted with a purity of about 90 percent. DNA from the sorted chromosomes is suitable for construction of recombinant DNA libraries and for gene mapping.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gray, J W -- Dean, P N -- Fuscoe, J C -- Peters, D C -- Trask, B J -- van den Engh, G J -- Van Dilla, M A -- HD17655/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1987 Oct 16;238(4825):323-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biomedical Sciences Division, Lawrence Livermore National Laboratory, CA 94550.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2443974" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bisbenzimidazole ; Cell Fractionation/*methods ; Chromomycin A3 ; Chromosomes/*ultrastructure ; Chromosomes, Human/ultrastructure ; Cloning, Molecular ; DNA/isolation & purification ; DNA, Recombinant ; Flow Cytometry ; Fluorescent Dyes ; Genes ; Humans
    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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  • 5
    Electronic Resource
    Electronic Resource
    The binding kinetics and interaction of DNA fluorochromes used in the analysis of nuclei and chromosomes by flow cytometry (1986)
    Springer
    Histochemistry and cell biology 84 (1986), S. 501-508 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The interactions and binding characteristics of DNA dyes used in the flow cytometric analysis of chromatin were studied using human chromosomes and mouse thymocyte nuclei. The kinetics of dye binding and the relationship between fluorescence intensity and dye concentration are presented. Under the conditions used, Hoechst 33258, propidium iodide and chromomycin A3 reach an equilibrium with thymocyte nuclei after approximately 5 min, 20 min and more than 1 h, respectively. The same binding kinetics are observed with Hoechst 33258 and chromomycin when nuclei are stained with a mixture of the two dyes. Sodium citrate, which improves the resolution of flow karyotypes, causes a rapid increase in Hoechst and propidium iodide fluorescence, but a decrease in the fluorescence of chromomycin. The relative peak positions of chromosomes in a flow karyotype are unaffected by sodium citrate addition. The spectral interaction between Hoechst and chromomycin is quantified. There is variation among the human chromosome types in the amount of energy transferred from Hoechst to chromomycin. By measuring the Hoechst and chromomycin fluorescence of each chromosome after Hoechst excitation, it is shown that the amount of energy transferred is correlated to the ratio of the amount of Hoechst to chromomycin bound. Although the energy transfer between the two dyes is considerable, this has little effect on the reproducibility of flow karyotype measurements. The relative peak positions of all human chromosomes in a 64×64 channel flow karyotype, except for the 13 and Y chromosomes, vary in the order of 0.5 channel over a 16-fold change in either Hoechst or chromomycin concentration. This implies that, with the present flow cytometers, variation in staining conditions will have minimal effects on the reproducibility of the relative peak positions in flow karyotypes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00482983
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  • 6
    Electronic Resource
    Electronic Resource
    Analysis of the variation in chromosome size among diverse human populations by bivariate flow karyotyping (1997)
    Springer
    Human genetics 〈Berlin〉 100 (1997), S. 138-144 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Chromosomes sampled from seven human populations were analyzed by flow cytometry to survey normal variation in chromosome size. The populations include two African Pygmy groups, two Amerindian tribes, Druze, Khmer Cambodians, and Melanesians. Mitotic chromosomes were isolated from cultured cells and stained with Hoechst 33 258 and chromomycin A3. The relative DNA content and base-pair composition of each homolog was quantified by bivariate flow karyotyping. Significant variation in DNA content, ranging from 10–40%, was observed for chromosomes 1, 13–16, 19, 21, 22, and Y. The measurements for each population appeared to be a random sampling of the total set of 33 individuals for the majority of chromosomes. A few significant differences in the distributions of chromosomal DNA content were observed among the populations, however. The data, when combined with an earlier study of 33 unrelated individuals of unknown ethnic origin, provide a good representation of the variation in chromosome size among humans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004390050479
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  • 7
    Electronic Resource
    Electronic Resource
    Quantification by flow cytometry of chromosome-17 deletions in Smith-Magenis syndrome patients (1996)
    Springer
    Human genetics 〈Berlin〉 98 (1996), S. 710-718 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We have used bivariate flow karyotyping to quantify the deletions involving chromosome 17 in sixteen patients with Smith-Magenis syndrome (SMS). The fluorescence intensities of mitotic chromosomes stained with Hoechst 33258 and chromomycin were quantified in a dual-beam flow cytometer. For each patient, the position of the peak representing the deleted chromosome 17 was compared to those of the normal homologs of an unaffected parent. The patients could be classified into four groups based on the size of their deletions. The deletions ranged from ∼9–10 Mb (∼10–11% of the chromosome) to below the detection limit of the technique (2 Mb). Different deletion sizes were detected among patients whose high-resolution banding results were similar. Some deletions detected by banding were not detected by flow analyses. Deletion estimates are largely consistent with the results of molecular analyses. Patients with larger deletions that extend into band 17p12 have abnormal electrophysiologic studies of peripheral nerves. Deletion size does not appear to correlate with the degree of mental retardation, presence of behavioral abnormalities, craniofacial anomalies or common skeletal findings in SMS. By identifying patients with varying deletion sizes, these data will aid the construction of a long-range deletion-based map of 17p11.2 and identification of the genes involved in this syndrome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004390050291
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  • 8
    Electronic Resource
    Electronic Resource
    Regional differences in the compaction of chromatin in human G0/G1 interphase nuclei (1997)
    Springer
    Chromosome research 5 (1997), S. 157-166 
    Details
    ISSN: 1573-6849
    Keywords: chromatin structure ; chromosome bands ; chromosome organization ; fluorescence in situ hybridization ; interphase nucleus ; polymer ; random walk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The large-scale structure of chromatin corresponding to G- and R-bands in human G0/G1 interphase nuclei was compared. Fluorescence in situ hybridization (FISH) was used to measure the interphase distance between 42 pairs of probes separated by 0.1–1.5Mbp. The probe pairs were derived from 21q22.2 and Xp21.3, G-band positive regions, and from 4p16.3, 6p21.3, and Xq28, R-band positive regions. Distributions of measured interphase distances in all regions approximated a Rayleigh distribution, suggesting that the chromatin follows a random-walk path over this range. A linear correlation of mean-square interphase distance and genomic separation, also indicative of random-walk folding, was observed in all regions. The slope of the correlation observed using probes from G-band regions was systematically lower than that from R-band regions. The difference in the slope between Xp21.3 and Xq28 was particularly striking and was observed in normal fibroblast cells, fixed alternatively with methanol and acetic acid or paraformaldehyde, and HeLa cells. These results demonstrate regional differences in large-scale chromosome structure during interphase, with the more openly configured chromatin corresponding to R-bands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018438729203
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  • 9
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    Sequence analysis of mouse vomeronasal receptor gene clusters reveals common promoter motifs and a history of recent expansion (2001)
    National Academy of Sciences
    Details
    Publication Date: 2001-12-18
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 10
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    MRIT, a novel death-effector domain-containing protein, interacts with caspases and BclXL and initiates cell death (1997)
    National Academy of Sciences
    Details
    Publication Date: 1997-10-14
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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