Selection of a conspicuous male genitalic trait in the seedbug Lygaeus simulans
Selection of a conspicuous male genitalic trait in the seedbug Lygaeus simulans
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拟蝽Lygaeus simulans 显着雄性生殖性状的选择
DOI：
10.1098/rspb.1999.0845
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
A. Tadler
中科院分区：
文献类型：
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作者：
A. Tadler
在这项研究中，雄性生殖器性状的表型选择的基础上，授精成功的种子虫Lygaeus simulans，Deckert 1985年，证明了。在一项实验室实验中，97对未交配的动物交配一次。雌性由六组全姐妹篇组成，一组的所有姐妹篇都在同一个盒子里长大。相关的女性，以降低女性的喜好的方差，从而增加了机会，检测选择的男性特征的女性的选择。雄性是独立的，也就是说，每只雄性都是来自一对独特的父母。线性和非线性项的男性生殖器性状（性腺轴长度）和男性体重的授精成功的多元回归显示稳定的生殖器性状的选择。根据功能的考虑，这种选择很可能是女性选择男性突起长度的结果。
Phenotypic selection of a male genitalic trait based on insemination success in the seedbug Lygaeus simulans, Deckert 1985, was demonstrated in this study. In a laboratory experiment, 97 pairs of virgin animals copulated once. The females consisted of six groups of full sisters, all sisters of a group having been raised in the same box. Related females were used in order to lower the variance of female preferences and to thereby increase the chances of detecting selection of male traits by female choice. The males were independent, i.e. each male descended from a unique pair of parents. Multiple regressions of insemination success on linear and nonlinear terms of a male genitalic trait (processus gonopori length) and male weight revealed stabilizing selection on the genitalic trait. According to functional considerations this selection is most probably the result of female choice of male processus length.