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Showing 1–3 of 3 results
Advanced filters: Author: Ivo M. Chelo Clear advanced filters

  • A central tenet of population genetics is that the probability of fixing beneficial new alleles in a population is twice their fitness effect, but this has not been empirically proven. Chelo et al. show experimentally, using nematode worms, that extinction rates decrease when the number of beneficial alleles increases.

    • Ivo M. Chelo
    • Judit Nédli
    • Henrique Teotónio
    ResearchOpen Access
    Nature Communications
    Volume: 4, P: 1-8

  • Henrique Teotónio and colleagues report a comprehensive study of the molecular population genetics of adaptation and reverse evolution in Drosophila. They conclude that adaptive reverse evolution in this context tends to occur from the sorting and recombination of standing genetic variation at multiple loci, rather than from the fixation of new mutations.

    • Henrique Teotónio
    • Ivo M Chelo
    • Anthony D Long
    Research
    Nature Genetics
    Volume: 41, P: 251-257