Linked Life Data

18666548

Source:http://linkedlifedata.com/resource/pubmed/id/18666548

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2008-7-31
pubmed:abstractText
Data reflecting evolutionary changes in chromosomal gene order can be used for phylogenetic reconstructions along with the results of nucleotide sequence comparison. By the example of bacteria of the genus Rickettsia, we have shown that phylogenetic reconstructions based on quantitative estimates of the similarity and cladistic analysis of gene order data, may, in some cases, amend and fill up classical phylogenetic trees. When applied, these approaches enabled us to substantiate the hypothesis that Rickettsia felis species had split before the typhus (R. typhi, R. prowazekii) and spotted fever (R. connorii) group divergence and thus R. felis does not belong to the latter group. In general, rickettsias evolved towards increasing intracellular parasitic specialization. Five Rickettsia species whose genomes have been sequenced and annotated completely actually form an evolutionary series R. hellii-R. felis-R. connorii-R. prowazekii-R. typhi. Within this series, a reduction in genome size and rapid decrease of genome rearrangement rates (genome plasticity loss) gradually occur.
pubmed:language
rus
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0016-6758
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
456-66
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
[Use of quantitative measures of gene order similarity to phylogenetic reconstructions (exemplified by bacteria of the genus Rickettsia)].
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't