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  • Salt tolerance  (5)
  • Genetic diversity  (3)
  • Male  (3)
  • 1
    Publication Date: 2015-11-26
    Description: Ancient DNA makes it possible to observe natural selection directly by analysing samples from populations before, during and after adaptation events. Here we report a genome-wide scan for selection using ancient DNA, capitalizing on the largest ancient DNA data set yet assembled: 230 West Eurasians who lived between 6500 and 300 bc, including 163 with newly reported data. The new samples include, to our knowledge, the first genome-wide ancient DNA from Anatolian Neolithic farmers, whose genetic material we obtained by extracting from petrous bones, and who we show were members of the population that was the source of Europe's first farmers. We also report a transect of the steppe region in Samara between 5600 and 300 bc, which allows us to identify admixture into the steppe from at least two external sources. We detect selection at loci associated with diet, pigmentation and immunity, and two independent episodes of selection on height.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mathieson, Iain -- Lazaridis, Iosif -- Rohland, Nadin -- Mallick, Swapan -- Patterson, Nick -- Roodenberg, Songul Alpaslan -- Harney, Eadaoin -- Stewardson, Kristin -- Fernandes, Daniel -- Novak, Mario -- Sirak, Kendra -- Gamba, Cristina -- Jones, Eppie R -- Llamas, Bastien -- Dryomov, Stanislav -- Pickrell, Joseph -- Arsuaga, Juan Luis -- de Castro, Jose Maria Bermudez -- Carbonell, Eudald -- Gerritsen, Fokke -- Khokhlov, Aleksandr -- Kuznetsov, Pavel -- Lozano, Marina -- Meller, Harald -- Mochalov, Oleg -- Moiseyev, Vyacheslav -- Guerra, Manuel A Rojo -- Roodenberg, Jacob -- Verges, Josep Maria -- Krause, Johannes -- Cooper, Alan -- Alt, Kurt W -- Brown, Dorcas -- Anthony, David -- Lalueza-Fox, Carles -- Haak, Wolfgang -- Pinhasi, Ron -- Reich, David -- GM100233/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Dec 24;528(7583):499-503. doi: 10.1038/nature16152. Epub 2015 Nov 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA. ; Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA. ; Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA. ; Independent researcher, Santpoort-Noord, The Netherlands. ; School of Archaeology and Earth Institute, Belfield, University College Dublin, Dublin 4, Ireland. ; Institute for Anthropological Research, Zagreb 10000, Croatia. ; Department of Anthropology, Emory University, Atlanta, Georgia 30322, USA. ; Smurfit Institute of Genetics, Trinity College Dublin, Dublin 2, Ireland. ; Australian Centre for Ancient DNA, School of Biological Sciences &Environment Institute, University of Adelaide, Adelaide, South Australia 5005, Australia. ; Laboratory of Human Molecular Genetics, Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia. ; Department of Paleolithic Archaeology, Institute of Archaeology and Ethnography, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia. ; Centro Mixto UCM-ISCIII de Evolucion y Comportamiento Humanos, 28040 Madrid, Spain. ; Departamento de Paleontologia, Facultad Ciencias Geologicas, Universidad Complutense de Madrid, 28040 Madrid, Spain. ; Centro Nacional de Investigacion sobre Evolucion Humana (CENIEH), 09002 Burgos, Spain. ; IPHES. Institut Catala de Paleoecologia Humana i Evolucio Social, Campus Sescelades-URV, 43007 Tarragona, Spain. ; Area de Prehistoria, Universitat Rovira i Virgili (URV), 43002 Tarragona, Spain. ; Netherlands Institute in Turkey, Istiklal Caddesi, Nur-i Ziya Sokak 5, Beyog lu 34433, Istanbul, Turkey. ; Volga State Academy of Social Sciences and Humanities, Samara 443099, Russia. ; State Office for Heritage Management and Archaeology Saxony-Anhalt and State Museum of Prehistory, D-06114 Halle, Germany. ; Peter the Great Museum of Anthropology and Ethnography (Kunstkamera) RAS, St Petersburg 199034, Russia. ; Department of Prehistory and Archaeology, University of Valladolid, 47002 Valladolid, Spain. ; The Netherlands Institute for the Near East, Leiden RA-2300, the Netherlands. ; Max Planck Institute for the Science of Human History, D-07745 Jena, Germany. ; Institute for Archaeological Sciences, University of Tubingen, D-72070 Tubingen, Germany. ; Danube Private University, A-3500 Krems, Austria. ; Institute for Prehistory and Archaeological Science, University of Basel, CH-4003 Basel, Switzerland. ; Anthropology Department, Hartwick College, Oneonta, New York 13820, USA. ; Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), 08003 Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26595274" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/history ; Asia/ethnology ; Body Height/genetics ; Bone and Bones ; DNA/genetics/isolation & purification ; Diet/history ; Europe/ethnology ; Genetics, Population ; Genome, Human/*genetics ; Haplotypes/genetics ; History, Ancient ; Humans ; Immunity/genetics ; Male ; Multifactorial Inheritance/genetics ; Pigmentation/genetics ; Selection, Genetic/*genetics ; Sequence Analysis, DNA
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1997-08-22
    Description: It has been suggested that European Middle Pleistocene humans, Neandertals, and prehistoric modern humans had a greater sexual dimorphism than modern humans. Analysis of body size variation and cranial capacity variation in the large sample from the Sima de los Huesos site in Spain showed instead that the sexual dimorphism is comparable in Middle Pleistocene and modern populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arsuaga, J L -- Carretero, J M -- Lorenzo, C -- Gracia, A -- Martinez, I -- Bermudez de Castro, J M -- Carbonell, E -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1086-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departamento de Paleontologia, Instituto de Geologia Economica, Facultad de Ciencias Geologicas, Universidad Complutense de Madrid, Ciudad Universitaria 28040 Madrid, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9262474" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Body Constitution ; Female ; *Fossils ; Hominidae/*anatomy & histology ; Humans ; Male ; *Sex Characteristics ; Skull/*anatomy & histology ; Spain
    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
    Publication Date: 2016-03-16
    Description: A unique assemblage of 28 hominin individuals, found in Sima de los Huesos in the Sierra de Atapuerca in Spain, has recently been dated to approximately 430,000 years ago. An interesting question is how these Middle Pleistocene hominins were related to those who lived in the Late Pleistocene epoch, in particular to Neanderthals in western Eurasia and to Denisovans, a sister group of Neanderthals so far known only from southern Siberia. While the Sima de los Huesos hominins share some derived morphological features with Neanderthals, the mitochondrial genome retrieved from one individual from Sima de los Huesos is more closely related to the mitochondrial DNA of Denisovans than to that of Neanderthals. However, since the mitochondrial DNA does not reveal the full picture of relationships among populations, we have investigated DNA preservation in several individuals found at Sima de los Huesos. Here we recover nuclear DNA sequences from two specimens, which show that the Sima de los Huesos hominins were related to Neanderthals rather than to Denisovans, indicating that the population divergence between Neanderthals and Denisovans predates 430,000 years ago. A mitochondrial DNA recovered from one of the specimens shares the previously described relationship to Denisovan mitochondrial DNAs, suggesting, among other possibilities, that the mitochondrial DNA gene pool of Neanderthals turned over later in their history.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meyer, Matthias -- Arsuaga, Juan-Luis -- de Filippo, Cesare -- Nagel, Sarah -- Aximu-Petri, Ayinuer -- Nickel, Birgit -- Martinez, Ignacio -- Gracia, Ana -- Bermudez de Castro, Jose Maria -- Carbonell, Eudald -- Viola, Bence -- Kelso, Janet -- Prufer, Kay -- Paabo, Svante -- England -- Nature. 2016 Mar 24;531(7595):504-7. doi: 10.1038/nature17405. Epub 2016 Mar 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. ; Centro de Investigacion Sobre la Evolucion y Comportamiento Humanos, Universidad Complutense de Madrid-Instituto de Salud Carlos III, 28029 Madrid, Spain. ; Departamento de Paleontologia, Facultad de Ciencias Geologicas, Universidad Complutense de Madrid, 28040 Madrid, Spain. ; Area de Paleontologia, Departamento de Geografia y Geologia, Universidad de Alcala, Alcala de Henares, 28871 Madrid, Spain. ; Centro Nacional de Investigacion sobre la Evolucion Humana, Paseo Sierra de Atapuerca, 09002 Burgos, Spain. ; Institut Catala de Paleoecologia Humana i Evolucio Social, C/Marcel.li Domingo s/n (Edifici W3), Campus Sescelades, 43007 Tarragona, Spain. ; Area de Prehistoria, Departament d'Historia i Historia de l'Art, Universitat Rovira i Virgili, Facultat de Lletres, Avinguda de Catalunya, 35, 43002 Tarragona, Spain. ; Department of Anthropology, University of Toronto, 19 Russell Street, Toronto, Ontario M5S 2S2, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26976447" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; DNA, Mitochondrial/genetics ; Fossils ; Genome, Mitochondrial/genetics ; Hominidae/classification/*genetics ; Male ; Neanderthals/classification/genetics ; *Phylogeny ; Sequence Alignment ; Spain
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 86 (1993), S. 737-743 
    ISSN: 1432-2242
    Keywords: Salt tolerance ; Lycopersicon ; Yield ; Proteins ; C4 species
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Salt tolerance defined in terms of fruit yield under different NaCl concentrations (171.1 and 325.1 mM) is analyzed in 11 lines belonging to: Lycopersicon esculentum, L. cheesmanii, L. chmielewski, L. peruvianum and L. pimpinellifolium. Four L. pimpinellifolium lines and two L. cheesmanii lines tolerated the 171.1mM treatment; the latter species even tolerates 325.1 mM of NaCl. Changes in gene expression induced by salt treatment were also investigated by studying anther and leaf zymograms for L. esculentum and one salt-tolerant L. pimpinellifolium line, and leaf proteinograms for all lines. Changes in leaf PRX and MDH enzymatic systems were detected, mainly in the salt-sensitive genotype (L. esculentum). Four saltrelated peptides from 14 500 to 40 000 daltons were found. A polyclonal antibody raised against one of these peptides (number 2), also binds another peptide, named 2′, of much higher molecular weight, present both in control and salt-tolerant L. cheesmanii lines at the end of 171.1 mM treatment. The xero-halophyte shrub Atriplex halimus also showed a likely 2′-homologous peptide with this treatment, while its counterpart C3 species A. triangularis did not.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 88 (1994), S. 395-401 
    ISSN: 1432-2242
    Keywords: Salt tolerance ; Lycopersicon ; Yield ; QTLs ; Molecular markers ; MAS ; Epistasis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A segregating population derived from a cross between L. esculentum cv Madrigal and a line of L. pimpinellifolium was used to identify genetic markers linked to QTLs involved in salinity tolerance in terms of yield, under a conductivity of 15 dS/m (171.1 mM NaCl). Six markers resulted, associated with QTLs affecting average fruit weight, fruit number and total weight under salinity. One of them, Aco-1, behaves reversely to the expectation from parental means; this and other features make it a promising target to obtain salt-tolerant tomatoes. Epistatic interactions were also found, thus affecting the criteria for marker-assisted selection. Although only 41% of the loci assayed were polymorphic, a high efficiency in identifying QTLs was achieved, since 43% of the marker loci are linked to QTLs for the trait under study.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 93 (1996), S. 765-772 
    ISSN: 1432-2242
    Keywords: Salt tolerance ; Tomato breeding ; Marker-assisted selection ; Molecular markers ; QTL mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The usefulness of marker-assisted selection (MAS) to develop salt-tolerant breeding lines from a F2 derived from L. esculentum x L. pimpinellifolium has been studied. Interval mapping methodology of quantitative trait locus (QTL) analysis was used to locate more precisely previously detected salt tolerance QTLs. A new QTL for total fruit weight under salinity (TW) near TG24 was detected. Most of the detected QTLs [3 for TW, 5 for fruit number, (FN) and 4 for fruit weight (FW)] had low R 2 values, except the FW QTL in the TG180-TG48 interval, which explains 36.6% of the total variance. Dominant and overdominant effects were detected at the QTLs for TW, whereas gene effects at the QTLs for FJV and FW ranged from additive to partial dominance. Phenotypic selection of F2 familes and marker-assisted selection of F3 families were carried out. Yield under salinity decreased in the F2 generation. F3 means were similar to those of the F1 as a consequence of phentoypic selection. The most important selection response for every trait was obtained from the F3 to F4 where MAS was applied. While F3 variation was mainly due to the within-family component, in the F4 the FN and FW between-family component was larger than the within-family one, indicating an efficient compartmentalization and fixation of QTLs into the F4 families. Comparison of the yield of these families under control versus saline conditions showed that fruit weight is a key trait to success in tomato salt-tolerance improvement using wild Lycopersicon germplasm. The QTLs we have detected under salinity seem to be also working under control conditions, although the interaction family x treatment was significant for TW, thereby explaining the fact that the selected families responded differently to salinity.
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  • 7
    ISSN: 1432-2242
    Keywords: Key words  Citrus ; Fortunella ; Poncirus ; Isozymes ; Genetic diversity ; Germ plasm bank ; Heterozygosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract   Despite the great economic importance of citrus, its phylogeny and taxonomy remain a matter of controversy. Moreover pathogens of increased virulence and dramatic environmental changes are currently spreading or emerging. The objectives of the present paper, measuring genetic variability and studying its pattern of distribution, are crucial steps to optimize sampling strategies in the search of genotypes that tolerate or resist these threatening factors within the huge array of Citrus and Citrus related species. Their intraspecific and intrageneric variability was studied comparatively by means of ten enzymatic systems using eight different measures. The analysis of ten enzymatic systems allowed us to distinguish all the species and all but one artificial hybrid. The species with the lowest genotypic variability are C. myrtifolia, C. deliciosa (willow leaf mandarin), C. paradisi (grapefruit), C. limon (lemon) and C. sinensis (sweet orange), while Severinia buxifolia shows the highest value. A broad spectrum of heterozygosity values was found in the collection. Lemons (C. limon, C. meyeri, C. karna, C. volkameriana), limes (C. aurantifolia, C. limettioides, C. lattifolia) and C. bergamia show a very high percentage of heterozygosity which indicates an origin through interspecific hybridization. Two main factors limit genetic intraspecific variability: apomictic reproduction, where nucellar embryos are much more vigorous than the zygotic ones, and nurserymen selecting against variability in the seedling stage of the rootstocks or in propagating the scion cultivars vegetatively. Additionally, self-pollination appears in some species mainly used as rootstocks which would explain their low heterozygosity values. Genetic differences between species and genera are in general high, which suggests that adaptation might have played an important role during the evolution of the orange subfamily.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 86 (1993), S. 113-120 
    ISSN: 1432-2242
    Keywords: Lycopersicon ; Isozymes ; Genetic diversity ; Genetic distance ; Salt tolerance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Genetic diversity has to be described and measured in order to establish breeding strategies and manage genetic resources. It is also fundamental to develop a comparative intraspecific study before attempting to discuss and conclude any phylogenetic relationship. The genetic variability of Lycopersicon species was studied using starch gel electrophoresis of 11 enzymatic systems in a hierarchical fashion. The species with the greatest genetic variability are L. chilense, L. peruvianum and L. pennellii, mainly due to the within-line component. L. chmielewskii, L. parviflorum and L. pimpinellifolium show an intermediate total variability and their between-component clearly predominates over the within-component. The least variable species are L. cheesmanii and L. esculentum. Cluster analysis resulted in three main groups: one formed by the cultigen, L. pimpinellifolium, L. cheesmanii and L. peruvianum;another by two species with self-incompatibility systems, L. pennelli and L. chilense; and another by two autogamous species L. chmielewskii and L. parviflorum. With respect to L. esculentum the farthest related species is Solanum rickii and the closest, L. pimpinellifolium.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 86 (1993), S. 769-774 
    ISSN: 1432-2242
    Keywords: Salt tolerance ; Lycopersicon ; Heritability ; Genetic correlations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Eleven quantitative traits, mostly related to tomato plant growth and fruit set, and their association with salt tolerance in terms of fruit yield under a 171.1 mM NaCl treatment have been investigated in 206 progeny derived from an interspecific hybrid, L. esculentum x L. pimpinellifolium, by self-pollination. None of the traits were highly correlated phenotypically to salt tolerance; however, the immunologically-detected presence of peptide 2′ was significantly associated with high total fruit weight (TW) and number (FN) under saline treatment. Broad-sense heritability was estimated for these two salt-tolerance components as 53.44 and 72.59 %, respectively. Non-additive gene effects, which have to be considered in a breeding program for salt tolerance, have been detected in TW, FN and in average fruit weight (FW). Given that different types of gene action have been found depending on the presence or absence of a high NaCl concentration in the nutrient solution, a different set of genes, or genes, differently regulated, must be involved in the expression of TW, FN and other fruit-related characters depending on this environmental condition.
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  • 10
    ISSN: 1432-2242
    Keywords: Citrus ; Fortunella ; Poncirus ; Isozymes ; Genetic diversity ; Germ plasm bank ; Heterozygosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Despite the great economic importance of citrus, its phylogeny and taxonomy remain a matter of controversy. Moreover pathogens of increased virulence and dramatic environmental changes are currently spreading or emerging. The objectives of the present paper, measuring genetic variability and studying its pattern of distribution, are crucial steps to optimize sampling strategies in the search of genotypes that tolerate or resist these threatening factors within the huge array of Citrus and Citrus related species. Their intraspecific and intrageneric variability was studied comparatively by means of ten enzymatic systems using eight different measures. The analysis of ten enzymatic systems allowed us to distinguish all the species and all but one artificial hybrid. The species with the lowest genotypic variability are C. myrtifolia, C. deliciosa (willow leaf mandarin), C. paradisi (grapefruit), C. limon (lemon) and C. sinensis (sweet orange), while Severinia buxifolia shows the highest value. A broad spectrum of heterozygosity values was found in the collection. Lemons (C. limon, C. meyeri, C. karna, C. volkameriana), limes (C. aurantifolia, C. limettioides, C. lattifolia) and C. bergamia show a very high percentage of heterozygosity which indicates an origin through interspecific hybridization. Two main factors limit genetic intraspecific variability: apomictic reproduction, where nucellar embryos are much more vigorous than the zygotic ones, and nurserymen selecting against variability in the seedling stage of the rootstocks or in propagating the scion cultivars vegetatively. Additionally, self-pollination appears in some species mainly used as rootstocks which would explain their low heterozygosity values. Genetic differences between species and genera are in general high, which suggests that adaptation might have played an important role during the evolution of the orange subfamily.
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