Veiled preferences and cryptic female choice could underlie the origin of novel sexual traits

Veiled preferences and cryptic female choice could underlie the origin of novel sexual traits
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隐秘的偏好和神秘的女性选择可能是新奇性特征的起源的基础

DOI:
10.1098/rsbl.2018.0878
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发表时间:
2019
期刊:
影响因子:
3.3
通讯作者:
Boughman, Janette W.
Boughman, Janette W.
中科院分区:
生物学2区
文献类型:
--
作者:
Moehring, Amanda J.;Boughman, Janette W.

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许多物种中的雄性都具有雌性强烈偏爱的性特征,而这些特征在不同物种之间往往存在明显差异。然而,新颖的偏好和特征是如何起源的,是一个具有挑战性的进化问题,因为仅女性偏好或仅男性特征的最初出现会降低寻找合适配偶的能力,这可能会降低拥有这些新颖等位基因的个体的适应性。在这里,我们提出了一个假设,即新的偏好以及女性喜欢的新的男性特征如何在一妻多夫物种中起源、受到青睐和传播。新的偏好突变可能会以“隐性偏好”的形式出现,当群体中不存在相应的男性特征时,这种偏好就不会表达出来,从而使偏好在选择中被隐藏,从而持续存在。在存在男性特征的情况下,隐蔽的偏好提供了选择优势,并且雌性通过配偶选择或神秘的雌性选择不成比例地从偏好的雄性中产生后代。这提示了新雄性的适应性优势,允许偏好和特征传播,并在缺乏相应特征或偏好的情况下限制对它们的选择。
Males in many species have elaborated sexual traits that females strongly prefer, and these traits often conspicuously differ among species. How novel preferences and traits originate, however, is a challenging evolutionary problem because the initial appearance of only the female preference or only the male trait should reduce the ability to find a suitable mate, which could reduce fitness for individuals possessing those novel alleles. Here, we present a hypothesis for how novel preferences, as well as the novel male traits that females prefer, can originate, be favoured and spread in polyandrous species. Novel preference mutations can arise as ‘veiled preferences’ that are not expressed when the corresponding male trait is not present in the population, allowing preferences to be hidden from selection, and thus persist. In those cases when a male trait is present, veiled preferences provide a selective advantage, and females disproportionately produce offspring from preferred males through either mate choice or cryptic female choice. This tips the fitness advantage for novel males, allowing both preference and trait to spread, and limiting selection against them in the absence of the corresponding trait or preference.
DOI: 10.1086/303171
发表时间: 1999
期刊: The American Naturalist
影响因子: --
作者:
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DOI: 10.1086/286209
发表时间: 1998-12-01
影响因子: 2.9
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歧视性学习的产物可能会导致女性偏爱精致的男性
DOI: --
发表时间: 1993
期刊: Evolution; international journal of organic evolution
影响因子: --
作者:
Daniel M. Weary;Tim Guilford;Ronald G. Weisman
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