Reproductive Character Displacement Drives Diversification of Male Courtship Songs in Drosophila

Reproductive Character Displacement Drives Diversification of Male Courtship Songs in Drosophila
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果蝇的生殖特征位移驱动雄性求爱歌曲的多样化

DOI:
10.1086/714046
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发表时间:
2021
期刊:
The American Naturalist
影响因子:
--
通讯作者:
Yukilevich, Roman
Yukilevich, Roman
中科院分区:
--
文献类型:
--
作者:
Yukilevich, Roman

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雄性第二性征是动物界最显著和最多样的特征之一。虽然这些特征通常被认为是通过性选择进化的,但关于它们的多样化模式和它们在物种形成中的作用仍然存在许多问题。为了回答这些问题,我对119种果蝇的交配前雄性求爱歌曲进行了比较研究,涉及10个不同的物种群体。我将歌声的差异与遗传距离、地理关系和物种间的性别隔离联系在一起。在两两欧几里得歌唱距离的基础上,物种群体通常保留了它们的系统发育信号,而群体内的物种在共生关系上的分歧是异地共生的5倍,产生了生殖特征置换的模式。尽管在异位和共生中存在相似的遗传距离,但这种情况在较年轻的物种对中被夸大了,主要是由参数脉冲间隔驱动的。虽然共性婚姻中的性隔离程度很高,但歌唱分歧很小,但这些变量相互关联,并与共性婚姻中女性交配偏好的差异增加有关。角色置换的普遍模式表明,在推动果蝇歌曲多样化的过程中,由于性选择等过程导致的异位分化相对于强化和生殖干扰等共域过程非常缓慢。
Male secondary sexual traits are one of the most striking and diverse features of the animal kingdom. While these traits are often thought to evolve via sexual selection, many questions remain about their patterns of diversification and their role in speciation. To address these questions, I performed a comparative study of precopulatory male courtship songs of 119Drosophilaspecies across 10 distinct species groups. I related song divergence to genetic distances, geographic relationships, and sexual isolation between species. On the basis of pairwise Euclidean song distances, species groups typically retained their phylogenetic signal while species within groups diverged five times more in sympatry relative to allopatry, producing a pattern of reproductive character displacement. This occurred despite similar genetic distances in allopatry and sympatry, was exaggerated among younger species pairs, and was driven primarily by the parameter interpulse interval. While sexual isolation in sympatry was high even with low song divergence, these variables were correlated with each other and with increased divergence of female mating preferences in sympatry. The widespread pattern of character displacement implies that allopatric divergence due to processes like sexual selection are very slow relative to sympatric processes such as reinforcement and reproductive interference in driving song diversification acrossDrosophila.
女性的选择
DOI: --
发表时间: 1989
期刊: Nature
影响因子: 64.8
作者:
U. Savalli
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通讯作者: Lindzey
DOI: --
发表时间: 1995
期刊: Animal Behaviour
影响因子: 2.5
作者:
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DOI: --
发表时间: 1992
期刊:
影响因子: --
作者:
N. Asada;K. Fujiwara;H. Ikeda;F. Hihara
通讯作者: F. Hihara
DOI: 10.1016/s0003-3472(05)80778-x
发表时间: 1990-06-01
期刊: ANIMAL BEHAVIOUR
影响因子: 2.5
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COBB, M;JALLON, JM
通讯作者: JALLON, JM