Linked Life Data

1649647

Source:http://linkedlifedata.com/resource/pubmed/id/1649647

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1991-8-28
pubmed:abstractText
Large insertions and deletions in the variable regions of eukaryotic 16S-like rRNA relative to the archaebacterial structure have been defined as a marker for rapidly evolving taxa. Deletions in the rRNA occur in the diplomonad Giardia and the microsporidian Vairimorpha, whereas insertions occur in Euglenozoa (Euglena and the kinetoplastids), Acanthamoeba, Naegleria, Physarum, Dictyostelium, the apicomplexan Plasmodium, the ciliate Euplotes, and some metazoa. Except Acanthamoeba and Euplotes, all of these protists were previously placed at the base of the eukaryote phylogeny. A re-analysis of the 16S-like rRNA and 5S rRNA data with the neighborliness method revealed a close relationship of Apicomplexa to the dinoflagellate-ciliate clade, most probably closer to the dinoflagellates. Morphological evidence that supports this grouping is the layer of sacs underneath the plasma membrane in all three taxa and the identical structure of trichocysts in the apicomplexan Spiromonas and dinoflagellates. The remaining rapidly evolving organisms might still be misplaced in the 16S-like rRNA trees.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0303-2647
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
75-83
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
The troublesome parasites--molecular and morphological evidence that Apicomplexa belong to the dinoflagellate-ciliate clade.
pubmed:affiliation
Institut für Allgemeine Mikrobiologie, Christian-Albrechts-Universität Kiel, Germany.
pubmed:publicationType
Journal Article, Comparative Study