Population structure in Daphnia obtusa: quantitative genetic and allozymic variation.
作者： Ken Spitze
DOI: 10.1093/GENETICS/135.2.367
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摘要: Quantitative genetic analyses for body size and life history characters within among populations of Daphnia obtusa reveal substantial variance at both hierarchical levels all traits measured. Simultaneous allozymic analysis on the same population samples indicate a moderate degree differentiation: GST = 0.28. No associations between electrophoretic genotype phenotypic were found, providing support null hypothesis that variants are effectively neutral. Therefore, can be used as neutral evolution led to observed differentiation quantitative traits, which I call QST. The results this study provide evidence natural selection has promoted diversification populations, impeded relative fitness. Analyses clutch size, age reproduction, growth rate cannot excluded cause.
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