The mating advantage of rare males in Drosophila.
The mating advantage of rare males in Drosophila.
复制标题
果蝇中稀有雄性的交配优势。
DOI：
10.1073/pnas.65.2.345
复制
发表时间：
1970
影响因子：
11.1
通讯作者：
L. Ehrman
中科院分区：
文献类型：
--
作者：
L. Ehrman
用两种眼睛颜色突变体测试了稀有雄性果蝇的交配优势。在一项实验中，果蝇在有25对的观察室里呆了三个小时；在另一个实验中，他们在200个人的大众文化中停留了24小时。后一个实验的结果被跟踪了十代，除了配偶之外的所有竞争都被消除了。普通类型的初始频率为80%，而稀有类型的初始频率为20%，由于稀有类型的雄性更受青睐，因此频率趋近于相等。当以前罕见的类型出现频率增加时，它就失去了交配优势，最终达到了平衡。
The mating advantage of rare Drosophila males in tested using two eye color mutants. In one experiment, the flies remained for three hours in observation chambers containing 25 pairs; in another experiment they stayed for 24 hours in mass cultures of 200 individuals. The outcome of this latter experiment was followed for ten generations, with all competition other than that for mates eliminated. For initial frequencies of 80 per cent for the common and 20 per cent for the rare type, the frequencies converged to approximate equality because the rare males were favored as mates. When the formerly rare type increases in frequency, it loses its mating advantage, and a balanced equilibrium is eventually attained.