Molecular Evolution: Evidence for Monophyly of Metazoa (Paperback, Softcover reprint of the original 1st ed. 1998)

This volume focuses on the origin of multicellular animals, Metazoa. Fossil records are scarce and morphological, biochemical or cytological evidence has not demonstrated an unequivocal phylogeny. Therefore, the question remains: Did Metazoa evolve from Protozoa only once, or several times? Is the origin of animals monophyletic or polyphyletic? Especially the relationships between the existing lower metazoan phyla, particularly the Porifera, are uncertain. In addition, phylogenetic analyses of nucleotide sequences of small and large ribosomal RNA also revealed no conclusive results with regard to the evolu tionary dichotomy of diploblasts (Porifera, Cnidaria and Ctenophora) and triploblasts in general and the diploblastic lineages in particular. During the evolution of unicellular eukaryotes to multicellular animals, complex molecular systems were established which allow a tuned and control led interaction between cells among each other, and cells and extracellular molecules. Hence, cell surface-associated adhesion and growth hormone receptors, as well as their corresponding extracellular ligands, have evolved. In addition, transcription factors had to be introduced that control gene func tions in the variety of cell types in developing and adult organisms."

General

Imprint:	Springer-Verlag
Country of origin:	Germany
Series:	Progress in Molecular and Subcellular Biology, 19
Release date:	April 2012
First published:	1998
Editors:	Werner E.G. Muller
Dimensions:	244 x 170 x 10mm (L x W x T)
Format:	Paperback
Pages:	189
Edition:	Softcover reprint of the original 1st ed. 1998
ISBN-13:	978-3-642-48747-7
Categories:	Books > Science & Mathematics > Biology, life sciences > Cellular biology > General Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > General Promotions
LSN:	3-642-48747-5
Barcode:	9783642487477

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