Schmid-Hempel P
ETH Z]urich, Experimental Ecology, ETH-Zentrum, NW, CH-8092 Z]urich, Switzerland.
Microbes Infect. 2000 Apr;2(5):515-20. doi: 10.1016/s1286-4579(00)00316-6.
Females of many animal species mate with several different males, despite the extra costs. Recent studies in social insects now suggest that the resulting increase in genotypic variance in offspring is beneficial under selection by parasites. This finding also helps to understand the evolution and maintenance of sexual reproduction.
许多动物物种的雌性会与多个不同的雄性交配，尽管这样会有额外的代价。社会昆虫方面的最新研究表明，由此导致的后代基因型变异增加在寄生虫选择的情况下是有益的。这一发现也有助于理解有性生殖的进化与维持。
