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首页> 外文期刊>Journal of Comparative Physiology A >Listening when there is no sexual signalling? Maintenance of hearing in the asexual bushcricket Poecilimon intermedius
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Listening when there is no sexual signalling? Maintenance of hearing in the asexual bushcricket Poecilimon intermedius

机译：没有性暗示时倾听？维持无性bush之间的听力

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摘要

Unisexual reproduction is a widespread phenomenon in invertebrates and lower vertebrates. If a former sexual reproducing species becomes parthenogenetic, we expect traits that were subject to sexual selection to diminish. The bushcricket Poecilimon intermedius is one of the few insect species with obligate but diploid parthenogenetic reproduction. We contrasted characters that are involved in mating in a sexually sibling species with the identical structures in the parthenogenetic P. intermedius. Central for sexual communication are male songs, while receptive females approach the males phonotactically. Compared to its sister-species P. ampliatus, the morphology of the hearing organs (acoustic spiracle, crista acustica) and the function of hearing (acoustic threshold) are reduced in P. intermedius. Nonetheless, hearing is clearly maintained in the parthenogenetic females. Natural selection by acoustic hunting bats, pleiotropy or a developmental trap may explain the well maintained hearing function.
机译：在无脊椎动物和低等脊椎动物中，单性生殖是一种普遍现象。如果以前的有性繁殖物种变得孤雌生殖，我们希望受到性选择的性状会减少。 bushcri中间虫是少数具有专性但二倍体孤雌生殖繁殖的昆虫之一。我们比较了在单性生殖间中体中具有相同结构的性同性物种交配中涉及的角色。性交的中心是男性歌曲，而善于接受的女性则通过音位疗法接近男性。相较于其姊妹物种斑节对虾，中间间斑马鱼的听觉器官形态（声学气孔，crista acustica）和听觉功能（声学阈值）降低。尽管如此，单性生殖女性显然仍保持听力。声学狩猎棒，多效性或发育性陷阱的自然选择可能解释了良好维持的听力功能。

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