Correlated evolution of life-history with size at maturity in Daphnia pulicaria: patterns within and between populations
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چکیده
منابع مشابه
Correlated evolution of life-history with size at maturity in Daphnia pulicaria: patterns within and between populations.
Explaining the repeated evolution of similar sets of traits under similar environmental conditions is an important issue in evolutionary biology. The extreme alternative classes of explanations for correlated suites of traits are optimal adaptation and genetic constraint resulting from pleiotropy. Adaptive explanations presume that individual traits are free to evolve to their local optima and ...
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Genetic correlations among traits alter evolutionary trajectories due to indirect selection. Pleiotropy, chance linkage, and selection can all lead to genetic correlations, but have different consequences for phenotypic evolution. We sought to assess the mechanisms contributing to correlations with size at maturity in the cyclic parthenogen Daphnia pulicaria. We selected on size in each of four...
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Most evolutionary theory does not deal with populations expanding or contracting in space. Invasive species, climate change, epidemics, and the breakdown of dispersal barriers, however, all create populations in this kind of spatial disequilibrium. Importantly, spatial disequilibrium can have important ecological and evolutionary outcomes. During continuous range expansion, for example, populat...
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ژورنال
عنوان ژورنال: Genetical Research
سال: 2003
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672303006098