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Structure of the Female Reproductive System in Some Dorylaimida and Enoplida (Nematoda)

Structure of the Female Reproductive System in Some Dorylaimida and Enoplida (Nematoda) STRUCTURE OF THE FEMALE REPRODUCTIVE SYSTEM IN SOME DORYLAIMIDA AND ENOPLIDA (NEMATODA) BY E. GERAERT, P. GROOTAERT and W. DECRAEMER Instituut voor Dierkunde, Ledeganckstraat 35, Gent, Belgium A detailed study of the female reproductive system in the nematode orders Dorylaimida and Enoplida showed that the structure of ovary and oviduct was largely similar, whereas that of the uterus varied, depending on the species. The wall of the ovary at the germinal end is formed by many small cells; the oviduct consists of a single row of disc-like cells without a distinct central lumen. The oviduct starts closer to the germinal end of the ovary in enoplids, about the middle of the ovary in mononchs and closer to the end where the eggs ripen in dorylaims. A spermatheca is always absent. Trichodorids (usually considered as dorylaims) show such important dissimilarities in the structure of the female reproductive system that their current position within the Dorylaimida and even within the Enoplia becomes questionable. A previous study of the cellular structure of the female reproductive system in plant-parasitic tylenchids (Geraert, 1973) showed aspects of morphological interest and suggested systematic affinities. This encouraged us to look at other groups and, in this http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Structure of the Female Reproductive System in Some Dorylaimida and Enoplida (Nematoda)

Nematologica , Volume 26 (2): 17 – Jan 1, 1980

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529280X00143
Publisher site
See Article on Publisher Site

Abstract

STRUCTURE OF THE FEMALE REPRODUCTIVE SYSTEM IN SOME DORYLAIMIDA AND ENOPLIDA (NEMATODA) BY E. GERAERT, P. GROOTAERT and W. DECRAEMER Instituut voor Dierkunde, Ledeganckstraat 35, Gent, Belgium A detailed study of the female reproductive system in the nematode orders Dorylaimida and Enoplida showed that the structure of ovary and oviduct was largely similar, whereas that of the uterus varied, depending on the species. The wall of the ovary at the germinal end is formed by many small cells; the oviduct consists of a single row of disc-like cells without a distinct central lumen. The oviduct starts closer to the germinal end of the ovary in enoplids, about the middle of the ovary in mononchs and closer to the end where the eggs ripen in dorylaims. A spermatheca is always absent. Trichodorids (usually considered as dorylaims) show such important dissimilarities in the structure of the female reproductive system that their current position within the Dorylaimida and even within the Enoplia becomes questionable. A previous study of the cellular structure of the female reproductive system in plant-parasitic tylenchids (Geraert, 1973) showed aspects of morphological interest and suggested systematic affinities. This encouraged us to look at other groups and, in this

Journal

NematologicaBrill

Published: Jan 1, 1980

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