Long-sperm precedence and other cryptic female choices in Drosophila melanogaster.

ABSTRACT: Females that mate multiply make postmating choices about which sperm fertilize their eggs (cryptic female choice); however, the male characteristics they use to make such choices remain unclear. In this study, we sought to understand female sperm use patterns by evaluating whether Drosophila melanogaster females adjust sperm use (second male paternity) in response to 4 main factors: male genotype, male courtship effort, male pheromone alteration, and male postmating reproductive morphology. Our experiment was replicated across 4 different D. melanogaster lines, in a full factorial design, including a pheromone manipulation in which second males were perfumed to resemble heterospecific (Drosophila yakuba) males. We found that females prefer longer sperm-regardless of mating order-in almost

SUBMITTER: Peckenpaugh B 

PROVIDER: S-EPMC11879153 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature