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Histological and Ultrastructural Studies on the Male Reproductive System and Spermatogenesis in the Red Claw Crayfish, Cherax quadricarinatus

Histological and Ultrastructural Studies on the Male Reproductive System and Spermatogenesis in... HISTOLOGICAL AND ULTRASTRUCTURAL STUDIES ON THE MALE REPRODUCTIVE SYSTEM AND SPERMATOGENESIS IN THE RED CLAW CRAYFISH, CHERAX QUADRICARINATUS Chuan-Guang An, Xian-Long Weng, Yong-Zhen Xu, Yu-Jie Fan, and Yun-Long Zhao (YZ, correspondence, ylzhao@bio.ecnu.edu.cn; CA, XW) East China Normal University, School of Life Science, North Zhongshan Rd 3663, Shanghai 200062, PRC; (YF, correspondence, yjfan@sibs.ac.cn; YX) Institute of Plant Physiology and Ecology, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Fenglin Rd 300, Shanghai 200032, PRC A B S T R A C T Relative to other economically important marine animals, there is limited knowledge of the reproductive characteristics of the male Australian red claw crayfish Cherax quadricarinatus . In this study, the structure of the male reproductive system of C. quadricarinatus and the progression of spermatogenesis were examined histologically and using transmission electron microscopy (TEM). The male reproductive system of C. quadricarinatus is composed of paired testes, vasa deferentia, and genital appendixes. Each testis has a non- branched collecting duct and numerous attached seminal acini. Spermatogenesis occurs mainly in the seminal acini. Germ cell development is synchronous within each acinus, but not between different acini. Spermatids, formed after meiosis, undergo a complicated metamorphosis until the aflagellate spermatozoa are finally http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

Histological and Ultrastructural Studies on the Male Reproductive System and Spermatogenesis in the Red Claw Crayfish, Cherax quadricarinatus

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References (55)

Publisher
Brill
Copyright
© Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1651/10-3342.1
Publisher site
See Article on Publisher Site

Abstract

HISTOLOGICAL AND ULTRASTRUCTURAL STUDIES ON THE MALE REPRODUCTIVE SYSTEM AND SPERMATOGENESIS IN THE RED CLAW CRAYFISH, CHERAX QUADRICARINATUS Chuan-Guang An, Xian-Long Weng, Yong-Zhen Xu, Yu-Jie Fan, and Yun-Long Zhao (YZ, correspondence, ylzhao@bio.ecnu.edu.cn; CA, XW) East China Normal University, School of Life Science, North Zhongshan Rd 3663, Shanghai 200062, PRC; (YF, correspondence, yjfan@sibs.ac.cn; YX) Institute of Plant Physiology and Ecology, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Fenglin Rd 300, Shanghai 200032, PRC A B S T R A C T Relative to other economically important marine animals, there is limited knowledge of the reproductive characteristics of the male Australian red claw crayfish Cherax quadricarinatus . In this study, the structure of the male reproductive system of C. quadricarinatus and the progression of spermatogenesis were examined histologically and using transmission electron microscopy (TEM). The male reproductive system of C. quadricarinatus is composed of paired testes, vasa deferentia, and genital appendixes. Each testis has a non- branched collecting duct and numerous attached seminal acini. Spermatogenesis occurs mainly in the seminal acini. Germ cell development is synchronous within each acinus, but not between different acini. Spermatids, formed after meiosis, undergo a complicated metamorphosis until the aflagellate spermatozoa are finally

Journal

Journal of Crustacean BiologyBrill

Published: Jan 1, 2011

Keywords: spermatogenesis; red claw crayfish; Cherax quadricarinatus; male reproductive system

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