Publication Date:
2007-07-07
Description:
A major evolutionary divide occurs in the animal kingdom between the so-called radially symmetric animals, which includes the cnidarians, and the bilaterally symmetric animals, which includes all worm phyla. Buddenbrockia plumatellae is an active, muscular, parasitic worm that belongs to the phylum Myxozoa, a group of morphologically simplified microscopic endoparasites that has proved difficult to place phylogenetically. Phylogenetic analyses of multiple protein-coding genes demonstrate that Buddenbrockia is a cnidarian. This active muscular worm increases the known diversity in cnidarian body plans and demonstrates that a muscular, wormlike form can evolve in the absence of overt bilateral symmetry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jimenez-Guri, Eva -- Philippe, Herve -- Okamura, Beth -- Holland, Peter W H -- New York, N.Y. -- Science. 2007 Jul 6;317(5834):116-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17615357" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Biological Evolution
;
Cnidaria/anatomy & histology/*classification/*genetics/physiology
;
DNA, Ribosomal/genetics
;
Genes
;
Genes, Homeobox
;
Locomotion
;
Molecular Sequence Data
;
Muscles/anatomy & histology/ultrastructure
;
*Phylogeny
;
Polymerase Chain Reaction
;
Proteins/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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