Author:
CIVETTA ALBERTO,CLARK ANDREW G.
Abstract
Recent experiments with Drosophila have demonstrated that the success of sperm in multiply
mated females depends on the genotype of both the male and the female. To further characterize
the distinction between male and female roles in sperm success, we scored variation in both sexes
in sperm competitive ability among a set of chromosome replacement lines that allow identification
of effects to each chromosome. We detected significant male and female effects on sperm
precedence, defined as the ability of a male's ejaculate to displace resident sperm (P2) or avoid
being displaced by subsequent matings (P1). Tests of effects of first, second and third chromosome
substitutions revealed significant differences among third chromosomes in male sperm precedence
(both P1 and P2) and a first × second chromosome interaction in female's effect on sperm
precedence (only P1). We found no significant correlation between male and female effects on
sperm precedence, suggesting that the variation found in both P1 and P2 has a different genetic
cause in the two sexes.
Subject
Genetics,General Medicine
Cited by
29 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献