Read e-book online Sperm biology : an evolutionary perspective PDF

By Tim R. Birkhead, Dave J. Hosken, Scott S. Pitnick

ISBN-10: 0123725682

ISBN-13: 9780123725684

This ebook represents the 1st research of the evolutionary importance of sperm phenotypes and derived sperm qualities and the prospective choice pressures liable for sperm-egg coevolution.

An figuring out of sperm evolution is speedy constructing and supplies to make clear many subject matters from uncomplicated reproductive biology to the evolutionary approach itself in addition to the sperm proteome, the sperm genome and the quantitative genetics of sperm. The Editors have pointed out 15 themes of present curiosity and organic importance to hide all facets of this weird and wonderful, interesting and critical topic. It includes the main entire and up to date evaluate of the evolution of sperm and guidelines for destiny study, written by way of specialists in either sperm biology and evolutionary biology. the mix of evolution and sperm is a effective combine, and this can be the definitive account.

* the 1st evaluation survey of this rising field
* Written by means of specialists from a wide array of disciplines from the physiological and biomedical to the ecological and evolutionary
* Sheds mild at the intricacies of copy and the coevolution of sperm, egg and reproductive habit

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3) and between birds, mammals, frogs, salamanders, fish, lizards, insects and molluscs (Wagner 1837). Later, other investigators, notably Emil Ballowitz (1859–1932) and Gustaf Retzius (1842–1919), continued studying the spermatozoa of a variety of taxa, describing and illustrating the astonishing diversity in spermatozoa shape and size (see Chapter 3 of this volume). Retzius also recognized that closely related species had more similar spermatozoa than did distantly related species (Fawcett & Bedford 1979) and biologists later conferred on Retzius the title of “first comparative spermatologist” (Afzelius & Baccetti 1991), although the credit should more correctly go to Wagner (1837).

The main pioneers in this area were Bob Trivers in the United States who focused on theoretical aspects of sexual and parental behavior, Bill Hamilton in the UK who developed new theories of social behavior, and Geoff Parker in the UK who, as we will see, laid both theoretical and empirical foundations for the study of sperm competition and sexual conflict. 1). We focus mainly on the period from the 1670s when 1 Paley plagiarized Ray’s concept of physico-theology (Ray 1691) to produce his own Natural Theology (1860).

Like Tyler, the Colwins studied marine invertebrates, conducting their field and lab work almost entirely at the Marine Biological Laboratory (MBL) at Wood’s Hole, Massachusetts. With both biochemical and morphological bases of the sperm–egg interaction now understood, the way was paved for the in-depth study of other species, and the current approaches based on molecular biology (see Chapter 8 of this volume). 9 Capacitation and the acrosome reaction The 1950s saw major advances in our understanding of the mechanics of sperm– egg fusion due in part to major advances in biochemical analysis during the early decades of the century and in part to the development of phase contrast and transmission electron microscopes in the 1930s.

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Sperm biology : an evolutionary perspective by Tim R. Birkhead, Dave J. Hosken, Scott S. Pitnick

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