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首页> 外文期刊>The Royal Society Proceedings B: Biological Sciences >Meiotic drive and evolution of female choice.
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Meiotic drive and evolution of female choice.

机译:女性选择的减数分裂驱动和进化。

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摘要

As a special version of the good-genes hypothesis, it was recently proposed that females could benefit from choosing drive-resistant males in a meiotic drive system. Here, we examine with a three-locus, six-allele population genetic model whether female choice for drive resistance can evolve. An allele leading to female preference for drive-resistant males was introduced at low frequency into a population polymorphic for meiotic drive and drive resistance. Our simulations show that female choice of drive-resistant males is disadvantageous when resistance is Y-linked. This disadvantage occurs because, at equilibrium, drive-resistant males have lower reproductive success than drive-susceptible males. Thus, female choice of drive-susceptible males can evolve when resistance is Y-linked. When resistance is autosomal, selection on female choice for drive resistance is less strong and depends on the frequency of choice: female preference of resistant males is favoured when choice is rare and disadvantageous when choice is frequent, leading to a stable equilibrium at a low frequency of the choice allele. Independent of the location of drive resistance alleles, males with the non-driving allele always have above average reproductive success. Female choice is therefore beneficial when choosy females prefer males with the non-driving allele.
机译:作为优良基因假说的特殊版本,最近有人提出,雌性可以从减数分裂驱动系统中选择抗驱动雄性中受益。在这里,我们用三基因座,六等位基因群体遗传模型来检验女性对驱动力抗性的选择是否可以进化。导致女性偏爱抗驱性雄性的等位基因在低频下被引入减数分裂驱动和抗驱性的多态群体。我们的模拟结果表明,当阻力是Y型连接时,雌性选择抗驱动雄性是不利的。之所以会出现此缺点,是因为在平衡状态下,抗驾车的雄性比易驾车的雄性具有较低的繁殖成功率。因此,当抵抗力与Y相连时,雌性对易驾驶男性的选择可能会演变。当抗性为常染色体时,对雌性选择的驱动抗性选择不那么强烈,并且取决于选择的频率:抗性雄性的雌性选择在选择罕见的情况下受到青睐,而在频繁选择的情况下则不利,从而导致低频下的稳定平衡选择等位基因。与驾驶阻力等位基因的位置无关,具有非驾驶等位基因的雄性总是获得高于平均水平的生殖成功。因此,当挑剔的雌性偏爱具有非驾驶等位基因的雄性时,雌性选择是有益的。

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