Document Detail


Congruent evidence from alpha-tubulin and beta-tubulin gene phylogenies for a zygomycete origin of microsporidia.
MedLine Citation:
PMID:  12684019     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The origin of microsporidia and the evolutionary relationships among the major lineages of fungi have been examined by molecular phylogeny using alpha-tubulin and beta-tubulin. Chytrids, basidiomycetes, ascomycetes, and microsporidia were all recovered with high support, and the zygomycetes were consistently paraphyletic. The microsporidia were found to branch within zygomycetes, and showed relationships with members of the Entomophthorales and Zoopagales. This provides support for the microsporidia having evolved from within the fungi, however, the tubulin genes are difficult to interpret unambiguously since fungal and microsporidian tubulins are very divergent. Rapid evolutionary rates a characteristic of practically all microsporidian genes studied, so determining their evolutionary history will never be completely free of such difficulties. While the tubulin phylogenies do not provide a decisive conclusion, they do further narrow the probable origin of microsporidia to a zygomycete-like ancestor.
Authors:
Patrick J Keeling
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Fungal genetics and biology : FG & B     Volume:  38     ISSN:  1087-1845     ISO Abbreviation:  Fungal Genet. Biol.     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-04-09     Completed Date:  2003-06-19     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9607601     Medline TA:  Fungal Genet Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  298-309     Citation Subset:  IM    
Affiliation:
Department of Botany, University of British Columbia, 3529-6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada. pkeeling@interchange.ubc.ca
Data Bank Information
Bank Name/Acc. No.:
GENBANK/AY138769;  AY138770;  AY138771;  AY138772;  AY138773;  AY138774;  AY138775;  AY138776;  AY138777;  AY138778;  AY138779;  AY138780;  AY138781;  AY138782;  AY138783;  AY138784;  AY138785;  AY138786;  AY138787;  AY138788;  AY138789;  AY138790;  AY138791;  AY138792;  AY138793;  AY138794;  AY138795;  AY138796;  AY138797;  AY138798;  AY138799;  AY138800;  AY138801;  AY138802;  AY138803;  AY138804;  AY138805
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MeSH Terms
Descriptor/Qualifier:
Animals
Chytridiomycota / genetics
DNA, Fungal / genetics
DNA, Protozoan / genetics
Evolution, Molecular*
Fungi / genetics*
Microsporidia / genetics*
Molecular Sequence Data
Phylogeny*
Sequence Analysis, DNA
Tubulin / genetics*
Chemical
Reg. No./Substance:
0/DNA, Fungal; 0/DNA, Protozoan; 0/Tubulin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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