Miller Gary T, Pitnick Scott
Department of Biology, Syracuse University, 108 College Place, Syracuse, NY 13244, USA.
Science. 2002 Nov 8;298(5596):1230-3. doi: 10.1126/science.1076968.
Rapid evolution of reproductive traits has been attributed to sexual selection arising from interaction between the sexes. However, little is known about the nature of selection driving the evolution of interacting sex-specific phenotypes. Using populations of Drosophila melanogaster selected for divergent sperm length or female sperm-storage organ length, we experimentally show that male fertilization success is determined by an interaction between sperm and female morphology. In addition, sperm length evolution occurred as a correlated response to selection on the female reproductive tract. Giant sperm tails are the cellular equivalent of the peacock's tail, having evolved because females evolved reproductive tracts that selectively bias paternity in favor of males with longer sperm.
生殖性状的快速进化被归因于两性之间相互作用产生的性选择。然而，对于驱动相互作用的性别特异性表型进化的选择本质，我们却知之甚少。利用为精子长度或雌性精子储存器官长度不同而选择的黑腹果蝇种群，我们通过实验表明，雄性受精成功率由精子与雌性形态之间的相互作用决定。此外，精子长度的进化是对雌性生殖道选择的一种相关反应。巨大的精子尾部相当于孔雀的尾巴，其进化是因为雌性进化出了生殖道，从而有选择地使父权偏向精子较长的雄性。
