Sexual and natural selection both influence male genital evolution.
Sexual and natural selection both influence male genital evolution.
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DOI：
10.1371/journal.pone.0063807
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Hosken DJ
中科院分区：
文献类型：
--
作者：
House CM;Lewis Z;Hodgson DJ;Wedell N;Sharma MD;Hunt J;Hosken DJ
雄性生殖器形态的快速分化进化是内生殖动物的一个显著而普遍的模式。生殖器的快速进化被认为是性选择的结果，自然选择在生殖器进化中的作用仍然存在争议。然而，自然选择和性选择被认为是对男性生殖器形式的对抗。我们进行了一项实验性进化研究，以探讨自然选择和性选择对雄性果蝇生殖弓叶的综合影响。重复种群被迫在终身一夫一妻制（放松性选择）或终身一妻多夫制（提高性选择）和两种温度制度下进化，25°C（放松自然选择）或27°C（提高自然选择）在完全析因设计中。我们发现，自然选择和性选择加上它们的相互作用导致了生殖器的进化。自然选择导致生殖器形态的某些方面从性选择的形状演变而来，而自然选择和性选择对其他形状成分的作用方向相同。此外，性选择和自然选择倾向于更大的生殖器。因此，我们发现，驱动生殖器进化的潜在选择是复杂的，不仅涉及性选择，而且自然选择和性选择并不总是相互对抗。
Rapid and divergent evolution of male genital morphology is a conspicuous and general pattern across internally fertilizing animals. Rapid genital evolution is thought to be the result of sexual selection, and the role of natural selection in genital evolution remains controversial. However, natural and sexual selection are believed to act antagonistically on male genital form. We conducted an experimental evolution study to investigate the combined effects of natural and sexual selection on the genital-arch lobes of male Drosophila simulans. Replicate populations were forced to evolve under lifetime monogamy (relaxed sexual selection) or lifetime polyandry (elevated sexual selection) and two temperature regimes, 25°C (relaxed natural selection) or 27°C (elevated natural selection) in a fully factorial design. We found that natural and sexual selection plus their interaction caused genital evolution. Natural selection caused some aspects of genital form to evolve away from their sexually selected shape, whereas natural and sexual selection operated in the same direction for other shape components. Additionally, sexual and natural selection tended to favour larger genitals. Thus we find that the underlying selection driving genital evolution is complex, does not only involve sexual selection, and that natural selection and sexual selection do not always act antagonistically.
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影响因子：
3.3
作者：
Eberhard, William G.
通讯作者：
Eberhard, William G.
影响因子：
2.7
作者：
Andrade, CAC;Hatadani, LM;Klaczko, LB
通讯作者：
Klaczko, LB
DOI：
10.1111/j.1095-8312.2009.01292.x
发表时间：
2009-10-01
影响因子：
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作者：
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通讯作者：
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影响因子：
3.3
作者：
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通讯作者：
COYNE, JA
影响因子：
3.4
作者：
Jennions, MD;Kelly, CD
通讯作者：
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