Influence of developmental environment on male‐ and female‐mediated sperm precedence in Drosophila melanogaster

摘要: Length of the sperm flagellum and female's primary sperm-storage organ, seminal receptacle (SR), exhibit a pattern rapid correlated evolution in Drosophila other lineages. Experimental studies with melanogaster indicate that these traits have coevolved through sexual selection, length SR representing proximal basis female sire discrimination, biasing paternity according to length. Here, we examine impact experimentally varying developmental environment, including larval density adult nutrition, on length, precedence. Expression was far more sensitive variation among environments than Nevertheless, there striking co-variation The environment both females second males, but not first significantly contributed male competitive fertilization success.