title: Geographic divergence of gamete recognition systems in two species in the sea urchin genus Strongylocentrotus.
authors.affiliation: Friday Harbor Laboratories, WA 98250, USA.
authors.forename: C H
authors.initials: CH
authors.lastname: Biermann
authors.forename: J A
authors.initials: JA
authors.lastname: Marks
mesh_terms: D020101:Acrosome Reaction; D000818:Animals; D001267:Atlantic Ocean; D005260:Female; D005298:Fertility; D006824:Hybridization, Genetic / Q000502:physiology; D008297:Male; D009865:Oocytes / Q000166:cytology; D010140:Pacific Ocean; D012617:Sea Urchins / Q000145:classification / Q000502:physiology*; D013045:Species Specificity; D013084:Sperm-Ovum Interactions / Q000502:physiology*; D013094:Spermatozoa / Q000166:cytology