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Mechanisms of Life History EvolutionThe Genetics and Physiology of Life History Traits and Trade-Offs$
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Thomas Flatt and Andreas Heyland

Print publication date: 2011

Print ISBN-13: 9780199568765

Published to Oxford Scholarship Online: December 2013

DOI: 10.1093/acprof:oso/9780199568765.001.0001

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Asexual reproduction in Cnidaria: Comparative developmental processes and candidate mechanisms

Asexual reproduction in Cnidaria: Comparative developmental processes and candidate mechanisms

Chapter:
(p.101) Chapter 8 Asexual reproduction in Cnidaria: Comparative developmental processes and candidate mechanisms
Source:
Mechanisms of Life History Evolution
Author(s):

Adam M. Reitzel

Derek Stefanik

John R. Finnerty

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199568765.003.0008

Cnidarians are representative of a broad array of animals that have both sexual and asexual reproduction in their life history. The mechanisms and developmental processes involved in asexual reproduction across the Cnidaria are diverse. By dissecting these processes to component modules, this chapter describes the diversity of asexual reproduction modes and proposes how divergent mechanisms are likely involved. Because asexual reproduction involves cell proliferation, death, and differentiation, the interplay of cellular signalling events is critical for successful deployment of these developmental processes. The chapter discusses recent comparative genomic surveys for candidate genes as well as studies of transcriptional regulation in other animals that utilize asexual reproduction. Together, the Cnidaria provide a powerful comparative system for studying the mechanisms underlying asexual reproduction and how these gene networks evolve to produce the diversity of asexual reproductive mechanisms observed throughout this phylum.

Keywords:   asexual, reproduction, axial patterning, Cnidaria, fission, modularity, development processes

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