Ontology highlight
ABSTRACT:
SUBMITTER: Baldi C
PROVIDER: S-EPMC3159720 | biostudies-literature | 2011 Aug
REPOSITORIES: biostudies-literature
Current biology : CB 20110811 16
Self-fertile hermaphrodites have evolved independently several times in the genus Caenorhabditis [1, 2]. These XX hermaphrodites make smaller sperm than males [3, 4], which they use to fertilize their own oocytes. Because larger sperm outcompete smaller sperm in nematodes [3-5], it had been assumed that this dimorphism evolved in response to sperm competition. However, we show that it was instead caused by a developmental bias. When we transformed females of the species Caenorhabditis remanei in ...[more]