Attractive males do not sire superior daughters
Attractive males do not sire superior daughters
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有魅力的男性不会生出优秀的女儿
作者：
M. Taylor;N. Wedell;D. Hosken
最近关于女性选择的演变的许多工作都集中在直接和间接利益的相对影响上，特别是直接成本是否可以被间接利益抵消。研究调查是否有吸引力的男性受益女性通过增加他们的后代的生存能力往往报告交配优势的儿子符合费舍尔过程，而检测没有或微弱的生存能力的好处。一个潜在的原因是，儿子可能会权衡生存能力的好处，投资于昂贵的性状，提高交配成功率，导致的建议，生存能力的好处可能会更好地检测检查女儿的健身。在这里，我们调查男性的吸引力和女儿的健身在果蝇simulans之间的关系。我们测量了女儿（和妈妈）的一生生殖成功和寿命。我们没有发现有吸引力的男性生下高健康的女儿。此外，无论是女儿还是母鼠都没有从与有吸引力的雄性交配中获得直接利益。然而，女儿的健身方面与母亲的性格。
Much of the recent work on the evolution of female choice has focused on the relative influence of direct and indirect benefits, and particularly whether direct costs can be offset by indirect benefits. Studies investigating whether attractive males benefit females by increasing the viability of their offspring often report mating advantages to sons consistent with the Fisher process, while detecting no or weak viability benefits. One potential reason for this is that sons may trade-off viability benefits with investment in costly traits that enhance mating success, leading to the suggestion that viability benefits may be better detected by examining daughters’ fitness. Here we investigate the relationship between male attractiveness and daughters’ fitness in Drosophila simulans. We measured daughter (and dam) lifetime reproductive success and longevity. We found no evidence that attractive males sire high fitness daughters. Additionally, neither daughters nor dams gained direct benefits from mating with attractive males. However, aspects of daughters’ fitness were related to dam characters.