Structure of ovaries and oogenesis in entognathans (Apterygota)

Two categories of female gonads can be discerned among entognathans. In Protura, Collembola and Campodeina (Apterygota), the paired ovaries are sac-shaped, not divided into discrete ovarioles. In contrast, the ovaries of Japygina are composed of 7 metamerically arranged ovarioles. The ovaries (ovari...

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Veröffentlicht in:	International journal of insect morphology & embryology 1993, Vol.22 (2), p.255-269
1. Verfasser:	Bilinski, S.M
Format:	Artikel
Sprache:	eng
Schlagworte:	Collembola Diplura evolution follicles germ cells insects oocytes oogenesis ovaries Protura ultrastructure vitellogenesis
Online-Zugang:	Volltext
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