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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2009 Vol.28 No.5

Progress in the Renal Sexual Segment of Reptiles
Author of the article:ZHOU Bing, LU Yu-yan, LI Pi-peng*
Author's Workplace:(Center for Chinese Endemic Herp-breeding and Conservation Research, Liaoning Key Lab of Evolution and Biodiversity, Shenyang Normal University, Shenyang 110034, China)
Key Words:snakes;lizards;renal sexual segment;structure;histochemistry;function
Renal sexual segment (RSS), the hypertrophied region of the distal convoluted tubule and/or the forehead of the collecting duct of kidneys in the reptiles of Diapsida Lepidosauria, especially in male individual of Squamata, is a secondary structure of the male. The single layered epithelium of RSS consists of cylindrical cells with intensely secretory granules. Histochemical studies indicated that RSS shows multi-positive such as ACP, AKP, glycogen, glycoprotein, lipid and protein, which expressed differences interspecies. RSS has obvious seasonal changes which are related with the development of the gonads. Furthermore, in a few snakes and lizards, the immature males have RSS, and a few females have too. The function of RSS has not been demonstrated clearly, considering it functions in maintaining sperm, forming copulatory plug, relating to form seminal fluid and/or attracting females during courtship.
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