Ebook Veterinary embryology: Part 1

Part 1 book "Veterinary embryology" includes content: Division, growth and differentiation of cells; gametogenesis, fertilisation, cleavage, aspects of cell signalling and gene functioning during development, establishment of the basic body plan, coelomic cavities, foetal membranes, forms of implantation and placentation, cardiovascular system.
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Ebook Veterinary embryology: Part 1 VETERINARY EMBRYOLOGY VETERINARY EMBRYOLOGY T. A. McGeady, MVB, MS, MSc, MRCVS Former Senior Lecturer in Veterinary Anatomy, Histology and Embryology, Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University College Dublin P. J. Quinn, MVB, PhD, MRCVS Professor Emeritus, Former Professor of Veterinary Microbiology and Parasitology, Faculty of Veterinary Medicine, University College Dublin E. S. FitzPatrick, FIBMS Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University College Dublin M. T. Ryan, MSc, PhD Molecular Biology Laboratory, Faculty of Veterinary Medicine, University College Dublin Illustrations by S. Cahalan, MVB Faculty of Veterinary Medicine, University College Dublin © 2006 TA McGeady, PJ Quinn, ES FitzPatrick, MT Ryan and S Cahalan Editorial Offices: Blackwell Publishing Ltd, 9600 Garsington Road, Oxford OX4 2DQ, UK Tel: +44 (0)1865 776868 Blackwell Publishing Professional, 2121 State Avenue, Ames, Iowa 50014-8300, USA Tel: +1 515 292 0140 Blackwell Publishing Asia, 550 Swanston Street, Carlton, Victoria 3053, Australia Tel: +61 (0)3 8359 1011 The right of the Author to be identified as the Author of this Work has been asserted in accordance with the Copyright, Designs and Patents Act 1988. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by the UK Copyright, Designs and Patents Act 1988, without the prior permission of the publisher. First published 2006 by Blackwell Publishing Ltd ISBN-10: 1-4051-1147-X ISBN-13: 978-1-4051-1147-8 Library of Congress Cataloging-in-Publication Data Veterinary embryology / T.A. McGeady . . . [et al.].; illustrations by S. Cahalan.— 1st ed. p. cm. Includes bibliographical references and index. ISBN-13: 978-1-4051-1147-8 (pbk. : alk. paper) ISBN-10: 1-4051-1147-X (pbk. : alk. paper) 1. Veterinary embryology. I. McGeady, T. A. (Thomas A.) SF767.5.V48 2006 636.089′264—dc22 2005022781 A catalogue record for this title is available from the British Library For further information on Blackwell Publishing, visit our website: www.blackwellpublishing.com Contents Preface ix Morphogens 49 Acknowledgements xi Differentiation 49 Gene structure and organisation 49 1 Division, growth and differentiation of cells 1 X-chromosome inactivation 49 The cell cycle 1 DNA methylation and parental Mitosis 1 imprinting in mammals 49 Meiosis 5 Promoters, enhancers and silencers 50 Transcription factors 50 2 Gametogenesis 10 Gene systems essential for development 50 Spermatogenesis 10 Experimental measurement of gene Oogenesis 13 expression 53 Experimental evaluation of gene function 53 3 Fertilisation 17 Concluding comments 53 Capacitation 18 Cellular events in the process of fertilisation 18 7 Establishment of the basic body plan 54 Barriers to polyspermy 18 Ovum activation 19 8 Coelomic cavities 59 In vitro fertilisation 21 Pleural and pericardial cavities 59 Comparative fertilisation rates 21 Diaphragm 61 Sex determination 22 Peritoneal cavity 64 Parthenogenesis 22 Omenta 65 Sex ratio 23 Chromosomes of domestic animals 23 9 Foetal membranes 66 Development of the foetal membranes 68 4 Cleavage 25 Birds 68 Cleavage in primitive chordates, Mammals 70 amphibians, avian species and mammals 25 Stem cells 30 10 Forms of implantation and placentation 78 Implantation 78 5 Gastrulation 34 Placentation in mammals 81 Primitive chordates 34 Functional aspects of the placenta 101 Amphibians 34 Avian species 34 11 Cardiovascular system 105 Mammals 36 Development of the cardiac tubes 106 Establishment of left–right symmetry Molecular aspects of cardiac development 112 in vertebrates ...