Download PDF by Claus Nielsen: Animal Evolution: Interrelationships of the Living Phyla

By Claus Nielsen

Animal Evolution offers a finished research of the evolutionary interrelationships and myriad variety of the Animal state. It studies the classical, morphological info from constitution and embryology, in addition to the hot facts received from experiences utilizing immune stainings of nerves and muscle tissues and blastomere markings which makes it attainable to stick with the destiny of unmarried blastomeres the entire solution to early organogenesis. until eventually lately, the data from analyses of gene sequences has tended to provide myriads of relatively diverging bushes. besides the fact that, the newest new release of molecular equipment, utilizing many genes, expressed series tags, or even complete genomes, has introduced a brand new balance to the sphere. For the 1st time this booklet brings jointly the knowledge from those diversified fields, and demonstrates that it really is certainly now attainable to construct a phylogenetic tree from a mix of either morphology and gene sequences.

This completely revised 3rd version of Animal Evolution brings the topic totally modern, particularly in mild of the most recent advances in molecular suggestions. The publication is generously illustrated all through with finely designated line drawings and transparent diagrams, lots of them new.

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Extra info for Animal Evolution: Interrelationships of the Living Phyla (3rd Edition)

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2001. Sponge paraphyly and the origin of the Metazoa. J. Evol. Biol. 14: 171–179. , BouryEsnault, N. and Vacelet, J. 1996. Sponge phylogeny, animal monophyly, and the origin of the nervous system: 18S rRNA evidence. Can. J. Zool. 74: 2031–2045. , Erpenbeck, D. and Wörheide, G. 2006. Non-monophyly of most supraspecific taxa of calcareous sponges (Porifera, Calcarea) revealed by increased taxon sampling and partitioned Bayesian analysis of ribosomal DNA. Mol. Phylogenet. Evol. 40: 830–843. I. P. 2006.

2010. The Comparative Embryology of Sponges. Springer, Dordrecht. V. K. 2006. The problem of germ layers in sponges (Porifera) and some issues concerning early metazoan evolution. Zool. Anz. 245: 65–76. , Konjukov, P. and Willenz, P. 2007. Experimental metamorphosis of Halisarca dujardini larvae (Demospongiae, Halisarcida): evidence of flagellated cell totipotentiality. J. Morphol. 268: 529–536. Gonobobleva, E. 2007. Basal apparatus formation in external flagellated cells of Halisarca dujardini larvae (Demospongiae: Halisarcida) in the course of embryonic development.

B) The 8-cell stage. (C) Young blastula. (D) Blastula with cilia on the inside. (E) Inversion of the blastula that brings the cilia to the outer side of the larva. (F) Amphiblastula, the ciliated half of the larva now bulges into the collar chamber. (G) Free-swimming larva. ) Phylum Calcarea • 7 Both molecular phylogeny and morphological studies emphasizing the presence of striated roots of the larval cilia indicate that Calcarea is the sister group of the Eumetazoa (when Homoscleromorpha is not included in the study) (Cavalier-Smith et al.

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Animal Evolution: Interrelationships of the Living Phyla (3rd Edition) by Claus Nielsen


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