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Chapter category: Reproductive Biology

Testicular Development and Spermatogenesis: Harvesting the Postgenomics Bounty

This chapter appears in the following book:

Molecular Mechanisms
in Spermatogenesis

Edited by: C. Yan Cheng
ISBN: 978-0-387-79990-2
» Get more information about this book at landesbioscience.com «

Chapter authors:
Antoine D. Rolland, Bernard Jegou and Charles Pineau


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Spermatogenesis is a sophisticated process facilitating transmission of the genetic patrimony and, thus, perpetuation of the species. Mammalian spermatogenesis is classically divided into three 3 phases. In the first—the proliferative or mitotic phase—primitive germ cells or spermatogonia undergo a series of mitotic divisions. In the second—the meiotic phase—the spermatocytes undergo two consecutive divisions to produce the haploid spermatids. In the third—spermiogenesis—spermatids differentiate into spermatozoa. The entire process is regulated by paracrine, autocrine and endocrine pathways, an array of structural elements and chemical factors modulating somatic and germ cell activity (for reviews, see refs. 1-4). The communication network linking the various cellular activities during spermatogenesis is highly complex and sophisticated.

Antoine D. Rolland
University of Rennes I, Campus de Beaulieu

Bernard Jegou
University of Rennes I, Campus de Beaulieu

Charles Pineau
University of Rennes I, Campus de Beaulieu

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