Engelhard G, Foster S P, Day T H
Department of Genetics, University of Nottingham, U.K.
Heredity (Edinb). 1989 Feb;62 ( Pt 1):123-31. doi: 10.1038/hdy.1989.17.
An association is described in seaweed flies, Coelopa frigida, between the genotype at the alcohol dehydrogenase (Adh) locus and mating success in pairwise mating trials. Significantly higher mating success was observed in females that carried the Adh-C allele, but no association was observed between Adh genotype and male mating success. There was heterogeneity in the success of different combinations of males and females, but only when the female lacked the C allele. Analyses of video recordings indicated that C-bearing females spent longer mounted by males and that they less frequently rejected males. Evidence is presented for mate discrimination by females not carrying a C allele. The significance of there being genetic differences in both mating success and in female discrimination are discussed in the context of previous results on mating behaviour in natural populations.
在海藻蝇（Coelopa frigida）中，酒精脱氢酶（Adh）基因座的基因型与成对交配试验中的交配成功率之间存在关联。携带Adh-C等位基因的雌性在交配时成功率显著更高，但未观察到Adh基因型与雄性交配成功率之间的关联。不同雌雄组合的交配成功率存在异质性，但仅在雌性缺乏C等位基因时才出现这种情况。视频记录分析表明，携带C等位基因的雌性被雄性骑跨的时间更长，且较少拒绝雄性。有证据表明不携带C等位基因的雌性存在配偶识别行为。结合先前关于自然种群交配行为的研究结果，讨论了交配成功率和雌性识别行为中存在遗传差异的意义。
