Positive selection on ADAM10 builds species recognition in the synchronous spawning coral Acropora.

ABSTRACT: The reef-building coral Acropora is a broadcast spawning hermaphrodite including more than 110 species in the Indo-Pacific. In addition, many sympatric species show synchronous spawning. The released gametes need to mate with conspecifics in the mixture of the gametes of many species for their species boundaries. However, the mechanism underlying the species recognition of conspecifics at fertilization remains unknown. We hypothesized that rapid molecular evolution (positive selection) in genes encoding gamete-composing proteins generates polymorphic regions that recognize conspecifics in the mixture of gametes from many species. We identified gamete proteins of Acropora digitifera using mass spectrometry and screened the genes that support branch site models that set the "fo

SUBMITTER: Morita M 

PROVIDER: S-EPMC10157049 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature