The genetic basis for male x female interactions underlying variation in reproductive phenotypes of Drosophila.

ABSTRACT: In Drosophila, where females mate multiply, sperm competition contributes strongly to fitness variability among males. Males transfer "Acp" seminal proteins to females during mating, and these proteins influence the outcome of sperm competition. Because Acps function within the female, male proteins can directly interact with female molecules in a manner that affects reproductive fitness. Here we begin to dissect the genetic architecture of male×female interactions underlying reproductive phenotypes important to sperm competition. By utilizing chromosome extraction lines, we demonstrate that the third and X chromosomes each have large effects on fertility phenotypes, female remating rate, and the sperm competition parameter, P1. Strikingly, the third and X chromosomes harbor genetic variat

SUBMITTER: Chow CY 

PROVIDER: S-EPMC2998317 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature