Evolution in the Dark Darwin's Loss Without Selection

This book provides fascinating insights into the development and genetics of evolutionary processes on the basis of animals living in the dark, such as the Astyanax cave fish.  Biologically functionless traits show high variability, which r

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olution in the Dark Darwin's Loss Without Selection

Evolution in the Dark

Horst Wilkens • Ulrike Strecker

Evolution in the Dark Darwin’s Loss Without Selection

Horst Wilkens Centrum für Naturkunde—Zoologisches Museum Universita¨t Hamburg Hamburg, Germany

Ulrike Strecker Centrum für Naturkunde—Zoologisches Museum Universita¨t Hamburg Hamburg, Germany

ISBN 978-3-662-54510-2 ISBN 978-3-662-54512-6 DOI 10.1007/978-3-662-54512-6

(eBook)

Library of Congress Control Number: 2017941083 # Springer-Verlag GmbH Germany 2017 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Printed on acid-free paper This Springer imprint is published by Springer Nature The registered company is Springer-Verlag GmbH Germany The registered company address is: Heidelberger Platz 3, 14197 Berlin, Germany

Acknowledgements

Annelore Kr€ oger patiently prepared the voluminous graphic work. The partly coloured drawings were produced by Monika Ha¨nel. Arnhild Woltmann constantly provided ready assistance and Detlef Teege was responsible for keeping the fish in good condition for many years. We express our deepest thanks to all of them for their continuous assistance and engagement. The Astyanax project has been sponsored by the Deutsche Forschungsgemeinschaft since 1970. Above all we thank the Mexican people and authorities for their help and permits. If not differently assigned, the photos are by the authors.

v

Contents

1

Evolution in the Dark: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 2

2

The Role of Rudimentation in Evolution . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 11

3

Diversity and the Phylogenetic Age of Cave Species . . . . . . . . . . . . 3.1