Sperm morphology and the evolution of intracellular sperm-egg interactions.

ABSTRACT: Sperm morphology is incredibly diverse, even among closely related species, yet the coevolution between males and females of fertilization recognition systems is necessary for successful karyogamy (male and female pronuclear fusion). In most species, the entire sperm enters the egg during fertilization so sperm morphological diversity may impact the intracellular sperm-egg interactions necessary for karyogamy. We quantified morphological variation of sperm inside eggs prior to and following karyogamy in several species of Drosophila to understand whether evolution of sperm morphology could influence intracellular sperm-egg interactions (ISEIs). We measured seven parameters that describe ISEIs among species to determine whether these parameters varied both within a species across developmen

SUBMITTER: Southern HM 

PROVIDER: S-EPMC5980432 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature