Linked Life Data

11321366

Source:http://linkedlifedata.com/resource/pubmed/id/11321366

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-4-25
pubmed:abstractText
The four species of common voles within the genus Microtus--M. kirgisorum, M. transcaspicus, M. arvalis, and M. rossiaemeridionalis--are so closely related that neither morphological features nor paleontological evidence allow clarification of their phylogeny. Analysis of vole karyotypes and mitochondrial DNA sequences, therefore, is essential for determining their phylogenetic relationships. A comparison of high resolution GTG-banding patterns allows us to ascertain the similarity between the karyotypes of these species, revealing that they are composed of rearrangements of the same chromosomal elements. Based on this analysis, we propose possible routes of chromosomal divergence involved in speciation within this group of voles and construct a phylogenetic tree of their karyotypes. We suggest that two different karyotypic variants existed during the course of vole evolution--one resulting in M. rossiaemeridionalis and M. transcaspicus, the other, M. kirgisorum and M. arvalis. As an alternative approach FITCH and KITSCH computer programs were used to construct a phylogenetic tree of vole molecular evolution based on a pairwise comparison of mitochondrial cytochrome b sequences and the divergence time of the species was determined. The correlation between the trees constructed using karyologic and molecular approaches is discussed in the context of other available data.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0967-3849
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
107-20
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Comparative chromosome and mitochondrial DNA analyses and phylogenetic relationships within common voles (Microtus, Arvicolidae).
pubmed:affiliation
Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Department, Novosibirsk.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't