Casares P, Carracedo M C, Piñeiro R, San Miguel E, Garcia-Florez L
Departmento de Genetica, Universidad de Oviedo, Spain.
Heredity (Edinb). 1992 Nov;69 ( Pt 5):400-5. doi: 10.1038/hdy.1992.142.
Receptivity of sexually mature, virgin females, measured as the time to copulation, has been investigated. Two independent 5 x 5 diallel crosses were carried out, each one with a different male tester genotype. Interactions between male and female genotypes were detected because some lines appeared as dominant in one diallel and recessive in the other. The overall picture emerging from the analyses shows a genetic system for female receptivity characterized by additive genes, with dominance for high receptivity in one of the diallel crosses. This remarkable additive component does not support the action of natural selection favouring females with extreme values of receptivity, rather, the lack of intrasexual female competition for mates is suggested.
已对性成熟的未交配雌性的接受能力进行了研究，该能力以交配时间来衡量。进行了两个独立的5×5双列杂交，每个杂交使用不同的雄性测试基因型。检测到雄性和雌性基因型之间的相互作用，因为一些品系在一个双列杂交中表现为显性，而在另一个双列杂交中表现为隐性。分析得出的总体情况显示，雌性接受能力的遗传系统具有加性基因的特征，在其中一个双列杂交中高接受能力表现为显性。这种显著的加性成分并不支持有利于具有极端接受能力值的雌性的自然选择作用，相反，这表明雌性之间缺乏对配偶的同性竞争。
