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Developmental stage-dependence of cyclin B1 protein localization and gene expression in rabbit spermatogenesis

Kong Weihua, Yan Shan, Gu Zheng, Zuo Jiake

College of Life Science,Shandong University.Jinan 250100,Shandong；China

Abstract

By means of in situ hybridization and immunohistochemistry, the protein localization and gene expression of cyclin B1 in spermatogenic cells were characterized during the spermatogenesis of rabbits. The results showed that the cyclin B1 mRNA in rabbit spermatogenic epithelium was expressed dominantly in primary spermatocytes. The expression was observed in round spermatids with a gradual decline in the process of metamorphosis of the spermatids, but not in elongated spermatids and sperms. Cyclin B1 protein was expressed in mitotic spermatogonia and meiotic spermatocytes and was observed predominantly in round and elongated spermatids. These results indicate that the expression of cyclin B1 mRNA and localization of cyclin B1 protein are dependent on the developmental stages of spermatogenic cells.

Key words: Cyclin Bl;Rabbit;Spermatogenesis;Developmental stage-dependence of spermatogenic cells

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Citing This Article：

Kong Weihua, Yan Shan, Gu Zheng, Zuo Jiake. Developmental stage-dependence of cyclin B1 protein localization and gene expression in rabbit spermatogenesis. Acta Physiol Sin 2002; 54 (5): (in Chinese with English abstract).