Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1999-3-24
pubmed:databankReference
pubmed:abstractText
We have reexamined the phylogeny of the ciliates using alpha-tubulin and phosphoglycerate kinase gene sequences. For alpha-tubulin, we have compared the amino acid and nucleotide sequences of 20 species representing seven of the nine classes of the phylum (Karyorelictea, Heterotrichea, Hypotrichea, Oligohymenophorea, Colpodea, Nassophorea, and Litostomatea). The phylogenetic tree resembles a bush from which three monophyletic lineages can be distinguished which correspond to the three classes Hypotrichea, Oligohymenophorea, and Litostomatea. For phosphoglycerate kinase, we have compared the amino acid sequences from 7 species representing three classes (Heterotrichea, Hypotrichea, and Oligohymenophorea). The branching pattern is resolved in three deeply separated branches with an early emergence of the heterotrich. Our comparative analysis shows that if alpha-tubulin phylogeny is not informative at the interclass level, the preliminary data from the phosphoglycerate kinase molecule appear more promising. Nevertheless, at low taxonomic level and at the class level, the resolved phylogenetic relationships inferred from both protein and rRNA sequence data are congruent.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1055-7903
pubmed:author
pubmed:copyrightInfo
Copyright 1998 Academic Press.
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
299-309
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Protein coding gene trees in ciliates: comparison with rRNA-based phylogenies.
pubmed:affiliation
Laboratoire de Biologie Cellulaire 4 (URA CNRS 2227), Université Paris-Sud, Bâtiment 444, Orsay Cedex, 91405, France. anne.baroin@bc4.u-psud.fr
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't