Ontology highlight
ABSTRACT:
SUBMITTER: Thorburn DJ
PROVIDER: S-EPMC6127121 | biostudies-literature | 2018 Aug
REPOSITORIES: biostudies-literature
Biology letters 20180801 8
All Lepidoptera produce two sperm types: normal, nucleated 'eupyrene' sperm and anucleate 'apyrene' sperm. One hypothesis for the evolution of apyrene sperm suggests that they act to reduce female remating rate. Apyrene sperm require less resources to produce than do eupyrene sperm, and could delay remating by females by acting as a 'cheap filler', packing the spermatheca and thereby reducing receptivity. This would reduce the risk of sperm competition, giving a potential adaptive advantage to t ...[more]