Female preference for rare males is maintained by indirect selection in Trinidadian guppies

Female preference for rare males is maintained by indirect selection in Trinidadian guppies
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特立尼达孔雀鱼通过间接选择维持雌性对稀有雄性的偏好

DOI:
10.1126/science.ade5671
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发表时间:
2023
期刊:
影响因子:
56.9
通讯作者:
Reznick, David N.
Reznick, David N.
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Potter, Tomos;Arendt, Jeff;Bassar, Ronald D.;Watson, Beth;Bentzen, Paul;Travis, Joseph;Reznick, David N.

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当雌性更喜欢具有罕见表型的配偶时,性选择可以维持而不是消耗遗传变异。然而,对于为什么这种广泛和经常观察到的偏好可能会演变和持续存在,没有达成共识。我们研究健身的后果,女性偏好罕见的男性颜色模式在自然种群的特立尼达孔雀鱼,使用的谱系,跨越10代。我们证明了(一)一个罕见的男性生殖优势,(二)女性与罕见的男性交配获得间接的健身优势,通过交配成功的儿子,和(iii)健身的好处,女性通过他们的“性感的儿子”蒸发为他们的孙子,因为他们的表型变得常见。相反,流行的理论,我们表明,女性的偏好可以通过间接选择。
When females prefer mates with rare phenotypes, sexual selection can maintain rather than deplete genetic variation. However, there is no consensus on why this widespread and frequently observed preference might evolve and persist. We examine the fitness consequences of female preference for rare male color patterns in a natural population of Trinidadian guppies, using a pedigree that spans 10 generations. We demonstrate (i) a rare male reproductive advantage, (ii) that females that mate with rare males gain an indirect fitness advantage through the mating success of their sons, and (iii) the fitness benefit that females accrue through their “sexy sons” evaporates for their grandsons as their phenotype becomes common. Counter to prevailing theory, we show that female preference can be maintained through indirect selection.
孔雀鱼(Poecilia reticulata)自然种群中的近交抑制和近交避免。
DOI: --
发表时间: 2010
期刊:
影响因子: --
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