The Origin of Animal Body Plans: A Study in Evolutionary Developmental Biology PDF
Preview The Origin of Animal Body Plans: A Study in Evolutionary Developmental Biology
THE ORIGIN OF AYLA LFAD ODI PLANS A Study in Evolutionary Developmental Biology The body of evolutionary theory that currently occupies a dominant position in biological thought is neo-Darwinism. While this theory has considerable explanatory power, it is widely recognized as being incomplete in that it lacks a component dealing with individual development, or ontogeny. This lack is particularly conspicuous in relation to attempts to explain the evolutionary origin of the 35 or so animal body plans, and of the developmental trajectories that generate them. This book examines both the origin of body plans in particular and the evolu- tion of animal development in general. In doing so, it ranges widely, covering topics as diverse as comparative developmental genetics, selection theory and Vendian/Cambrian fossils. Particular emphasis is placed on gene duplication, changes in spatiotemporal gene-expression patterns, internal selection, coevo- lution of interacting genes, and coadaptation. The book will be of particular interest to researchers and students in evolu- tionary biology, genetics, palaeontology and developmental biology. Wallace Arthur is Professor of Evolutionary Biology at the University of Sunderland, UK. He is the author of two earlier books on the evolution of developmental systems: Mechanisms of Morphological Evolution and A. Theory of the Evolution of Development. iS ‘ © ™ : ‘ * ~, * ™ 7o‘)f LVioiPtNtseianb lfhsty. a nWiafliaiXr l e ee i O4A5MM l L OseR RbE)a y tSLiet}r.O l4 eHT is Lti erW uIMwP‘M nsPcp P hiio ld eySP)oano Wai opeeA rt icBeu tlfales eyat e eer Mi ai=le. Mo eyet}ea en eM-E& E T = RT TP De Oi? eo Mri Mice ry Cagney@ (at JOLeite id oi. a dnl as fo ~ mr aay ey lig ut 4 i ati VOms 7 oa oasis a ee F A eral Sets al) Shatwnetga d Pon th (ik he Air: of eeu 12 sey ag? i ena a th. oo _ egPp, Ae At* e uPeaIn QiUtMIi e ihOittL=on~Sg ueeer asttes tarLj ea l y FlaAtt e twonb rOeY: )e eGde ayep yTro e aleepeHei ; i"aIpe iRceEel: y staa r st ooionait nify iangi‘l ho lTT: | a7n =a i i 7 muti poeta Mrvitihs x Hieat ahagual I DAbag wt Verenpe wiukiege area eait; t = ie Ee vepbien ban ei a iv ate 7 e.Cye: matedSp S eanntja ,Tt nwifA oywerrnsa cGgyto: artyls? f ayey le geoi ,th ts wnhi “tis a‘aymey ,® : s " 1ila s RS5et;e bit permnatenesna ioitdly i noiogm, yi aardeeiisn ett, tieA o:si 0eei4u5a lrteet ndst: ite aaealgag oe The Origin of Animal Body Plans _ Pid i—e—d- Dealt _ na any — a t¥e a rane- ageea aWs jea e rl viet Toralgh Wy ongtoralt“ a The Origin of Animal Body Plans A Study in Evolutionary Developmental Biology WALLACE ARTHUR University of Sunderland, UK a CAMBRIDGE 6) UNIVERSITY PRESS PUBLISHED BY THE PRESS SYNDICATE OF THE UNIVERSITY OF CAMBRIDGE The Pitt Building, Trumpington Street, Cambridge CB2 1RP, United Kingdom CAMBRIDGE UNIVERSITY PRESS The Edinburgh Building, Cambridge CB2 2RU, United Kingdom 40 West 20th Street, New York, NY 10011-4211, USA 10 Stamford Road, Oakleigh, Melbourne 3166, Australia © Cambridge University Press 1997 This book is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University Press. First published 1997 Printed in the United States of America Typeset in 10.5/14 pt Melior Library of Congress Cataloging-in-Publication Data Arthur, Wallace. The origin of animal body plans: a study in evolutionary developmental biology/Wallace Arthur. 2 cm. Includes bibliographical references and index. ISBN 0—521—55014—9 (hbk.) 1. Morphogenesis. 2. Developmental biology. 3. Evolution (Biology) I. Title. QH491.A77 1997 571.3'1-de21 97-3021 CIP A catalog record for this book is available from the British Library ISBN 0 521 55014 9 hardback
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