Results 11 to 20 of about 426,299 (287)
Genetic divergence in chilli accessions [PDF]
Electronic Journal of Plant Breeding, 2010 A study of genetic diversity in 25 chilli genotypes for various characters revealed substantial differences for all the traits.Based on D2 values, the genotypes were clustered into eight constellations.
B.M. Dushyantha Kumar, Anand kantti and H. Mallikarjunaiah
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Divergence Population Genetics of Chimpanzees [PDF]
Molecular Biology and Evolution, 2004 The divergence of two subspecies of common chimpanzees (Pan troglodytes troglodytes and P. t. verus) and the bonobo (P. paniscus) was studied using a recently developed method for analyzing population divergence. Under the isolation with migration model, the posterior probability distributions of divergence time, migration rates, and effective ...
Yong-Jin, Won, Jody, Hey
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BMC Evolutionary Biology, 2011 Background Reproductive isolation (RI) is widely accepted as an important "check point" in the diversification process, since it defines irreversible evolutionary trajectories. Much less consensus exists about the processes that might drive RI.
Pereira Ricardo J +2 more
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Inverse relationship between genetic diversity and epigenetic complexity [PDF]
, 2008 Early studies of molecular evolution revealed a correlation between genetic distance and time of species divergence. This observation provoked the molecular clock hypothesis and in turn the ‘Neutral Theory’, which however remains an ...
Shi Huang
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Zoological Letters, 2018 Background Geographical patterns and degrees of genetic divergence among populations differ between species, reflecting relative potentials for speciation or cladogenesis and differing capacities for environmental adaptation.
Antonio Cádiz +7 more
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Genetic Divergence of Two Sitobion avenae Biotypes on Barley and Wheat in China
Insects, 2020 Host plant affinity and geographic distance can play critical roles in the genetic divergence of insect herbivores and evolution of insect biotypes, but their relative importance in the divergence of insect populations is still poorly understood. We used
Da Wang +4 more
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Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]
, 1998 Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K. +9 more
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DNA sequence evidence for speciation, paraphyly and a Mesozoic dispersal of cancellothyridid articulate brachiopods [PDF]
, 2002 Because the classification of extant and fossil articulate brachiopods is based largely upon shell characters observable in fossils, it identifies morphotaxa whose biological status can, in practice, best be inferred from estimates of genetic divergence.
Cohen, B.L., Luter, C.
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Genetic Progression and Divergence in Pancreatic Carcinoma [PDF]
The American Journal of Pathology, 2000 Genetic alterations of pancreatic intraductal lesions adjacent to invasive ductal carcinoma were investigated. We submitted nine foci of ordinary epithelium, 12 foci of nonpapillary hyperplasia, 12 foci of papillary hyperplasia (pap HP), 66 foci of severe ductal dysplasia, and 27 invasive foci from a total of 10 pancreatic carcinomas for genetic ...
M, Yamano +5 more
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The genetic architecture underlying the evolution of a rare piscivorous life history form in brown trout after secondary contact and strong introgression [PDF]
, 2018 Identifying the genetic basis underlying phenotypic divergence and reproductive isolation is a longstanding problem in evolutionary biology. Genetic signals of adaptation and reproductive isolation are often confounded by a wide range of factors, such as
Adams, Colin E. +4 more
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