Results 21 to 30 of about 185,305 (259)
Genetics of ecological divergence during speciation [PDF]
Nature, 2014 Ecological differences often evolve early in speciation as divergent natural selection drives adaptation to distinct ecological niches, leading ultimately to reproductive isolation. Although this process is a major generator of biodiversity, its genetic basis is still poorly understood.
Arnegard, M. +12 more
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Genetic divergence in okra (Abelmoschus Esculentus L. Moench.) [PDF]
Electronic Journal of Plant Breeding, 2013 Genetic divergence was studied among 25 okra germplasm lines using Mahalanobis D2 analysis. Analysis of variances for dispersion indicated significant differences among the genotypes and they were grouped into four clusters. The cluster I consisted of 22
Shaikh Md. Soyab Akhil Mohd. Ab. Mazid, Mohrir M.N and Jadhav R. S.
doaj
Scientific Reports, 2021 Genomic divergence was studied in 10 small insular populations of the endangered Balearic Islands lizard (Podarcis lilfordi) using double digest restriction-site associated DNA sequencing.
Marta Bassitta +6 more
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Genetic divergence studies in safflower (Carthamus tinctorius L.) germplasm lines [PDF]
Electronic Journal of Plant Breeding, 2013 Ninety safflower genotypes representing diverse geographic regions were studied for genetic divergence using Mahalanobis D2 static. The genotypes were grouped into 12 clusters. Seed yield contributed maximum to the total divergence.
D.Shivani and Ch. Sreelakshmi
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GENETIC DIVERGENCE IN DEEPWATER RICE GENOTYPES [PDF]
Journal of Central European Agriculture, 2006 The nature and the magnitude of genetic divergence was estimated in 35 deepwater rice genotypes using Mahalonobis’s D2 – statistics. The genotypes were grouped onto 10 clusters showing fair degree of relationship between geographic distribution and ...
Lotan Kumar Bose, S Pradhan
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Genetic divergence among genetic groups of Gir crossbreds
Indian Journal of Animal Sciences, 2019 Comparative evaluation of FG (50% HF + 50% Gir), IFG (Interse of FG), FJG (50% HF + 25% Jersey + 25% Gir), IFJG (Interse of FJG) and R (50% HF + 12.50% Jersey + 37.50% Gir) crosses of Gir was done on the basis of age at first conception (AFCon ...
MAHENDRA GORAKH MOTE +3 more
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The Contribution of Selection and Genetic Constraints to Phenotypic Divergence [PDF]
The American Naturalist, 2010 Although divergent natural selection is common in nature, the extent to which genetic constraints bias evolutionary trajectories in its presence remains largely unknown. Here we develop a general framework to integrate estimates of divergent selection and genetic constraints to estimate their contributions to phenotypic divergence among natural ...
Chenoweth, Stephen F. +2 more
openaire +5 more sources
Patterns of reproductive isolation in toads.
PLoS ONE, 2008 Understanding the general features of speciation is an important goal in evolutionary biology, and despite significant progress, several unresolved questions remain.
John H Malone, Brian E Fontenot
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Estimating genetic divergence and genetic variability with restriction endonucleases. [PDF]
Proceedings of the National Academy of Sciences, 1981 Restriction endonucleases cut DNA at specific sites determined by the local nucleotide sequence. By comparing related DNA segments with respect to where such cuts are made, one can estimate the extent of sequence homology between the segments. Empirical methods are presented here for using these data to measure the proportion of mismatches between two ...
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Integrating paleoecology and genetics of bird populations in two sky island archipelagos
BMC Biology, 2008 Background Genetic tests of paleoecological hypotheses have been rare, partly because recent genetic divergence is difficult to detect and time. According to fossil plant data, continuous woodland in the southwestern USA and northern Mexico became ...
Bowen Bonnie S +2 more
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