title: Follicle cell processes: a shark thing?
abstract: Follicle cell processes (FCP) are identified in two species of carcharhinid shark (Selachii) but are absent in the little skate Leucoraja erinacea (Batoidea). This suggests that FCPs are either a unique structure that evolved in selachians or were lost by the batoids after their divergence, some 280 mya. The presence of FCPs in the selachians would be consistent with the evolution of large oocytes in this group of animals.
authors: Xavier University of Louisiana, Department of Biology, 1 Drexel Drive, New Orleans, LA, 70125, U.S.A.
authors: M
authors: M
authors: Dunbar
authors: Xavier University of Louisiana, Department of Biology, 1 Drexel Drive, New Orleans, LA, 70125, U.S.A.
authors: C
authors: C
authors: Onuora
authors: Xavier University of Louisiana, Department of Biology, 1 Drexel Drive, New Orleans, LA, 70125, U.S.A.
authors: S
authors: S
authors: Morgan
authors: Xavier University of Louisiana, Department of Biology, 1 Drexel Drive, New Orleans, LA, 70125, U.S.A.
authors: F E
authors: FE
authors: Stone
authors: Xavier University of Louisiana, Department of Biology, 1 Drexel Drive, New Orleans, LA, 70125, U.S.A.
authors: T M
authors: TM
authors: Huckaba
authors: Xavier University of Louisiana, Department of Biology, 1 Drexel Drive, New Orleans, LA, 70125, U.S.A.
authors: I R
authors: IR
authors: Davenport
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005260:Female; D009865:Oocytes / Q000502:physiology; D006080:Ovarian Follicle / Q000502:physiology*; D012754:Sharks / Q000235:genetics / Q000502:physiology*; D012860:Skates, Fish / Q000235:genetics / Q000502:physiology*; D013045:Species Specificity
keywords: Batoidea; Selachii; development; oogenesis; sharks; skates