The evolution of animal diversity is strongly affected by the origin of novel cell and tissue types and their interactions with each other. Understanding the evolution of cell types will shed light on the evolution of novel structures, and in turn highlight how animals diversified. Several cell types may also have been lost as animals simplified for example did sponges have nerves and lose them? This book reveals the interplay between gains and losses, and provides readers with a better grasp of the evolutionary history of cell types. In addition, the book illustrates how new cell types allow a better understanding permitting the discrimination between convergence and homology.
| Series Preface |
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vii | |
| Preface |
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ix | |
| Acknowledgements |
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xiii | |
| Editor Biographies |
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xv | |
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xvii | |
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Chapter 1 What Is a Cell Type? |
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1 | (12) |
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Chapter 2 The Protistan Origins of Animal Cell Differentiation |
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13 | (14) |
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Chapter 3 Convergent Evolution of Animal-Like Organelles across the Tree of Eukaryotes |
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27 | (20) |
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Chapter 4 Evolution of the Animal Germline: Insights from Animal Lineages with Remarkable Regenerating Capabilities |
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47 | (28) |
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Chapter 5 Origin and Evolution of Epithelial Cell Types |
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75 | (26) |
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Chapter 6 Evolution of the Sensory/Neural Cell Types |
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101 | (28) |
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Chapter 7 Cell Types, Morphology, and Evolution of Animal Excretory Organs |
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129 | (36) |
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| Index |
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165 | |
Andreas Hejnol is Professor and research group leader of Comparative
Developmental Biology at the Department of Biological Sciences (BIO) in Bergen,
Norway. After earning his Ph.D. in Comparative Zoology from the Free University
Berlin, Germany in 2002, he worked as a postdoctoral fellow in the laboratory of
Ralf Schnabel in Braunschweig and at the Kewalo Marine Laboratory in the lab
of Mark Q. Martindale in Hawaii. He led a research group at the Sars Centre from
2009-2019. His research aims to understand the evolutionary origin and diversification
of animal body plans, cell types, and organ systems. He is an ERC Consolidator
Grant holder and received for his achievements in Evolutionary Developmental
Biology and Comparative Zoology the prestigious Alexander O. Kovalevsky Medal
from the St. Petersburg Society for Naturalists in 2018.
Sally P. Leys is Professor in the Department of Biological Sciences at the University
of Alberta, in Edmonton, Canada. She earned her Ph.D. from the University of
Victoria under George Mackie in 1996, for which she received the Canadian Society
of Zoologists Cameron Award 1997. She held a Commander C Bellairs Postdoctoral
Fellowship from McGill University for postdoctoral research in Barbados (1997)
and then won an NSERC PDF which she took to the University Aix Marseille,
France (1998) and later to the University of Queensland, Australia (1998-2000). She
won an NSERC Womens University Research Award in 2000 and was Assistant
Professor (Limited Term) at the University of Victoria, British Columbia. In 2002,
she was awarded a Canada Research Chair Tier II at the University of Alberta in
Evolutionary and Developmental Biology. Her research interests broadly concern
understanding the origin of multicellularity in metazoans and more specifically the
cellular and molecular basis of coordination in non-bilaterian animals, sponges,
ctenophores, placozoans, and cnidarians.
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