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Life Sciences - Ecology | Evolution of Sexual Reproduction in Marine Invertebrates - Example of gymnolaemate bryozoans

Evolution of Sexual Reproduction in Marine Invertebrates

Example of gymnolaemate bryozoans

Ostrovsky, Andrew (Andrey N.)

2014, XXXII, 356 p. 103 illus., 10 illus. in color.

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  • Comparative analysis of reproductive patterns in Bryozoa
  • Structural diversity, independent origin, brood chamber evolution in different cheilostome groups
  • Analyses main directions in bryozoans sexual reproduction evolution
  • Emerging trends of these are compared with analogues in evolution of bryozoan order Ctenostomata and other marine invertebrate groups
  • Reconstruction of stages of sexual reproduction evolution in other bryozoan groups
  • History reviews of study of sexual reproduction in the Gymnolaemata with list of species studied
Three major aspects that distinguish this book are that (1) it contains the most detailed analysis of the sexual reproduction (oogenesis, fertilization and embryonic incubation) in a particular phylum of the aquatic invertebrates (Bryozoa) ever made; this analysis is based on an exhaustive review of the literature on that topic published over the last 260 years, as well as extensive original histological, anatomical and morphological data obtained during studies of both extant and extinct species; (2) this broad analysis has made it possible to reconstruct the major patterns, stages and trends in the evolution of sexual reproduction in various bryozoan clades, showing numerous examples of parallelisms during transitions from broadcasting to embryonic incubation, from planktotrophic to non-feeding larvae and from lecithotrophy to placentation; corresponding shifts in oogenesis, fertilization and embryonic development are discussed in detail; and (3) the key evolutionary novelties acquired by Bryozoa are compared with similar innovations that have evolved in other groups of marine invertebrates, showing the general trends in the evolution of their sexual reproduction. Ecological background of these innovations is considered too. Altogether these aspects make the monograph an “Encyclopedia of bryozoan sexual reproduction,” offering an integral picture of the evolution of this complex phenomenon.

Content Level » Research

Keywords » Brood chambers - Bryozoa, Evolution - Marine invertebrates - Oogenesis - Planktotrophy - Sexual reproduction

Related subjects » Animal Sciences - Ecology - Evolutionary & Developmental Biology - Geology

Table of contents 

Chapter 1. Reproductive patterns of gymnolaemate Bryozoa: general overview and comparative analysis.- Chapter 2. Cheilostome brood chambers — structure, formation, evolution.- Chapter 3. Evolution of reproductive patterns in Cheilostomata.- Appendix I: History of research on sexual reproduction in gymnolaemate Bryozoa.- Appendix II: Materials, methods and list of Taxa studied.

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