Germline cysts and the formation of the germinal epithelium during the female gonadal morphogenesis in Cyprinus carpio (Teleostei: Ostariophysi: Cypriniformes)

The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology
Talita Sarah MazzoniIrani Quagio-Grassiotto

Abstract

The formation of both germline cysts and the germinal epithelium is described during the ovary development in Cyprinus carpio. As in the undifferentiated gonad of mammals, cords of PGCs become oogonia when they are surrounded by somatic cells. Ovarian differentiation is triggered when oogonia proliferate and enter meiosis, becoming oocytes. Proliferation of single oogonium results in clusters of interconnected oocytes, the germline cysts, that are encompassed by somatic prefollicle cells and form cell nests. Both PGCs and cell nests are delimited by a basement membrane. Ovarian follicles originate from the germline cysts, about the time of meiotic arrest, as prefollicle cells surround oocytes, individualizing them. They synthesize a basement membrane and an oocyte forms a follicle. With the formation of the stroma, unspecialized mesenchymal cells differentiate, and encompass each follicle, forming the theca. The follicle, basement membrane, and theca constitute the follicle complex. Along the ventral region of the differentiating ovary, the epithelium invaginates to form the ovigerous lamellae whose developing surface epithelium, the germinal epithelium, is composed of epithelial cells, germline cysts with oogonia, oocytes, and...Continue Reading

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Citations

Dec 19, 2015·Hormone Molecular Biology and Clinical Investigation·Onder CelikSudenaz Celik
Sep 20, 2015·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Talita Sarah MazzoniIrani Quagio-Grassiotto
Apr 18, 2014·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Talita Sarah MazzoniIrani Quagio-Grassiotto
Sep 10, 2015·Zygote : the Biology of Gametes and Early Embryos·Amanda Pereira Dos Santos-SilvaRosicleire Veríssimo-Silveira
Jul 7, 2017·Journal of Morphology·Monika Żelazowska, Dorota Fopp-Bayat
Oct 13, 2017·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Yang YangJun Li
Feb 23, 2019·Journal of Morphology·Talita Sarah MazzoniIrani Quagio-Grassiotto
Mar 22, 2020·Journal of Morphology·Aldessandro da Costa AmaralFernanda L de Almeida
Sep 23, 2020·Cell and Tissue Research·Talita Sarah Mazzoni, Irani Quagio-Grassiotto
Apr 14, 2020·Zygote : the Biology of Gametes and Early Embryos·Isabelle Leite Bayona PerezIrani Quagio-Grassiotto
Jul 13, 2016·Journal of Fish Biology·F N ValentinL S O Nakaghi
Apr 3, 2018·Zygote : the Biology of Gametes and Early Embryos·Laíza Maria de Jesus-SilvaRosicleire Veríssimo-Silveira
Jan 16, 2021·Zygote : the Biology of Gametes and Early Embryos·Talita Sarah MazzoniIrani Quagio-Grassiotto

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