Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)

Mostrar todas las versiones(2)

Formation of the germinal epithelium and folliculogenesis during ovarian development in Cichlasoma dimerus were described at the light- and electron-microscopic levels. Prior to gonadal differentiation, germ cells and enveloping support cells reside within an inpocketing of the coelomic epithelium....

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Meijide, F.J., Rey Vázquez, G., Grier, H.J., Lo Nostro, F.L., Guerrero, G.A.
Formato:	JOUR
Materias:	Folliculogenesis Germinal epithelium Germline cyst Gonadal morphogenesis Ovarian differentiation Teleostei Ultrastructure cells and cell components cichlid germ cell microscopy morphogenesis ultrastructure Cichlasoma Cichlidae Perciformes
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00017272_v97_n1_p18_Meijide
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00017272_v97_n1_p18_Meijide
record_format	dspace
spelling	todo:paper_00017272_v97_n1_p18_Meijide2023-10-03T13:51:53Z Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes) Meijide, F.J. Rey Vázquez, G. Grier, H.J. Lo Nostro, F.L. Guerrero, G.A. Folliculogenesis Germinal epithelium Germline cyst Gonadal morphogenesis Ovarian differentiation Teleostei Ultrastructure cells and cell components cichlid germ cell microscopy morphogenesis ultrastructure Cichlasoma Cichlidae Perciformes Teleostei Formation of the germinal epithelium and folliculogenesis during ovarian development in Cichlasoma dimerus were described at the light- and electron-microscopic levels. Prior to gonadal differentiation, germ cells and enveloping support cells reside within an inpocketing of the coelomic epithelium. Separation of the germinal and interstitial compartments of the gonad by a basement membrane is apparent from early gonadal development. Upon ovarian differentiation, oogonia undergo cyst-forming divisions leading to the formation of clusters of interconnected cystocytes that synchronously enter meiosis, becoming oocytes. At the pachytene step, each oocyte becomes individualized by cytoplasmic extensions of prefollicle cells, thereby developing as an ovarian follicle. Subsequent somatic reorganization leads to the formation of the ovarian lumen in a cephalo-caudal gradient. As a result, the germinal epithelium becomes internalized and lines the ovarian lumen. As defined by its origin from the germinal epithelium, the ovarian follicle is composed of an oocyte and the surrounding follicle cells. Thecal cells derived from the stroma encompass the basement membrane outside the follicle, thus forming a follicle complex. A common basement membrane is shared by the germinal epithelium and the follicle complex along a small portion of its surface. This point of attachment represents the site at which the oocyte would be released to the ovarian lumen during ovulation. © 2016 The Royal Swedish Academy of Sciences. Fil:Meijide, F.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rey Vázquez, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lo Nostro, F.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00017272_v97_n1_p18_Meijide
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Folliculogenesis Germinal epithelium Germline cyst Gonadal morphogenesis Ovarian differentiation Teleostei Ultrastructure cells and cell components cichlid germ cell microscopy morphogenesis ultrastructure Cichlasoma Cichlidae Perciformes Teleostei
spellingShingle	Folliculogenesis Germinal epithelium Germline cyst Gonadal morphogenesis Ovarian differentiation Teleostei Ultrastructure cells and cell components cichlid germ cell microscopy morphogenesis ultrastructure Cichlasoma Cichlidae Perciformes Teleostei Meijide, F.J. Rey Vázquez, G. Grier, H.J. Lo Nostro, F.L. Guerrero, G.A. Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)
topic_facet	Folliculogenesis Germinal epithelium Germline cyst Gonadal morphogenesis Ovarian differentiation Teleostei Ultrastructure cells and cell components cichlid germ cell microscopy morphogenesis ultrastructure Cichlasoma Cichlidae Perciformes Teleostei
description	Formation of the germinal epithelium and folliculogenesis during ovarian development in Cichlasoma dimerus were described at the light- and electron-microscopic levels. Prior to gonadal differentiation, germ cells and enveloping support cells reside within an inpocketing of the coelomic epithelium. Separation of the germinal and interstitial compartments of the gonad by a basement membrane is apparent from early gonadal development. Upon ovarian differentiation, oogonia undergo cyst-forming divisions leading to the formation of clusters of interconnected cystocytes that synchronously enter meiosis, becoming oocytes. At the pachytene step, each oocyte becomes individualized by cytoplasmic extensions of prefollicle cells, thereby developing as an ovarian follicle. Subsequent somatic reorganization leads to the formation of the ovarian lumen in a cephalo-caudal gradient. As a result, the germinal epithelium becomes internalized and lines the ovarian lumen. As defined by its origin from the germinal epithelium, the ovarian follicle is composed of an oocyte and the surrounding follicle cells. Thecal cells derived from the stroma encompass the basement membrane outside the follicle, thus forming a follicle complex. A common basement membrane is shared by the germinal epithelium and the follicle complex along a small portion of its surface. This point of attachment represents the site at which the oocyte would be released to the ovarian lumen during ovulation. © 2016 The Royal Swedish Academy of Sciences.
format	JOUR
author	Meijide, F.J. Rey Vázquez, G. Grier, H.J. Lo Nostro, F.L. Guerrero, G.A.
author_facet	Meijide, F.J. Rey Vázquez, G. Grier, H.J. Lo Nostro, F.L. Guerrero, G.A.
author_sort	Meijide, F.J.
title	Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)
title_short	Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)
title_full	Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)
title_fullStr	Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)
title_full_unstemmed	Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)
title_sort	development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish cichlasoma dimerus (teleostei, perciformes)
url	http://hdl.handle.net/20.500.12110/paper_00017272_v97_n1_p18_Meijide
work_keys_str_mv	AT meijidefj developmentofthegerminalepitheliumandearlyfolliculogenesisduringovarianmorphogenesisinthecichlidfishcichlasomadimerusteleosteiperciformes AT reyvazquezg developmentofthegerminalepitheliumandearlyfolliculogenesisduringovarianmorphogenesisinthecichlidfishcichlasomadimerusteleosteiperciformes AT grierhj developmentofthegerminalepitheliumandearlyfolliculogenesisduringovarianmorphogenesisinthecichlidfishcichlasomadimerusteleosteiperciformes AT lonostrofl developmentofthegerminalepitheliumandearlyfolliculogenesisduringovarianmorphogenesisinthecichlidfishcichlasomadimerusteleosteiperciformes AT guerreroga developmentofthegerminalepitheliumandearlyfolliculogenesisduringovarianmorphogenesisinthecichlidfishcichlasomadimerusteleosteiperciformes
_version_	1807323096973049856

Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)

Ejemplares similares