1st Edition

Reproduction of Amphibians

By Maria Oielska Copyright 2009
    436 Pages
    by CRC Press

    436 Pages
    by CRC Press

    This book deals with reproduction of Amphibians belonging to three extant orders: Caecilians, Salamanders, Frogs and Toads. Separate chapters have been written for males and females; the chapters describe gonad structure and development, gametogenesis, urogenital connections, and reproductive tracts. The authors have provided a synthesis of the literature data and results of their own studies. The text is illustrated with original schemes and photographs and focuses on anatomy, histology, cytology, and molecular mechanisms that regulate gametogenesis and reproductive cycles. The first chapter is devoted to the origin of somatic and germ cells during formation of undifferentiated gonads. The last chapter deals with embryonic and postembryonic development, direct development, neoteny, and modifications of gametogenesis and meiosis in hybrids and polyploids (hybridogenesis and gynogenesis). The book will interest all reproductive biologists and biologists working on amphibians.

    The Undifferentiated Amphibian Gonad
    Formation of gonads in amphibians
    Spermatogeneiss and Male Reproductive System in Amphibia

    Anura
    Structure of testis in Anura
    Sperm collecting ducts and urogenital connections
    Spermatogenesis in Anura
    Regulation of spermatogenesis in Anura
    Spermatogenesis and Male Reproductive System in Amphibia

    Urodela
    Structure of testis in Urodela
    Urogenital connections
    Spermatogenesis in Urodela
    Spermatogenesis and Male Reproductive System in Amphibia

    Gymnophiona
    Introduction
    Structure of testis in Gymnophiona
    Urogenital connections
    Spermatogenesis in Gymnophiona
    Age of sexual maturity
    Hormonal control of spermatogenesis
    Oogenesis and Female Reproductive System in Amphibia

    Anura
    Structure of ovaries in Anura
    Female reproductive tract
    Oogenesis in Anura
    Regulation of oogenesis in Anura
    Oogenesis and Female Reproductive System in Amphibia

    Urodela
    Structure of ovary in Urodela
    Female reproductive tract
    Oogenesis
    Postovulatory ovary
    Atretic follicles
    Oogenesis and Female Reproductive System in Amphibia

    Gymnophiona
    Structure of ovaries in Gymnophiona
    Female reproductive tract in Gymnophiona
    Oogenesis in Gymnophiona
    Hormonal control of reproduction

    Development and Reproduction of Amphibian

    Species, Hybrids, and Polyploids
    Early devlopment
    Postembryonic development
    Direct development
    Reproduction of larvae (neoteny)
    Hybridization
    Polyploidy
    Reproduction of hybrids and allopolyploids
    Hybridogenesis
    Development and viability of hybrid progeny

    Biography

    Maria Oielska