Linked Life Data

11083936

Source:http://linkedlifedata.com/resource/pubmed/id/11083936

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-12-7
pubmed:abstractText
Buoyant density profiles of high-molecular-weight DNAs sedimented in CsCl gradients, i.e., compositional distributions of 50- to 100-kb genomic fragments, have revealed a clear difference between the murids so far studied and most other mammals, including other rodents. Sequence analyses have revealed other, related, compositional differences between murids and nonmurids. In the present study, we obtained CsCl profiles of 17 rodent species representing 13 families. The modal buoyant densities obtained for rodents span the full range of values observed in other eutherians. More remarkably, the skewness (asymmetry, mean - modal buoyant density) of the rodent profiles extends to values well below those of other eutherians. Scatterplots of these and related CsCl profile parameters show groups of rodent families that agree largely with established rodent taxonomy, in particular with the monophyly of the Geomyoidea superfamily and the position of the Dipodidae family within the Myomorpha. In contrast, while confirming and extending previously reported differences between the profiles of Myomorpha and those of other rodents, the CsCl data question a traditional hypothesis positing Gliridae within Myomorpha, as does the recently sequenced mitochondrial genome of dormouse. Analysis of CsCl profiles is presented here as a rapid, robust method for exploring rodent and other vertebrate systematics.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1055-7903
pubmed:author
pubmed:copyrightInfo
Copyright 2000 Academic Press.
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
219-30
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Diversity and phylogenetic implications of CsCl profiles from rodent DNAs.
pubmed:affiliation
Laboratoire de Génétique Moléculaire, Institut Jacques Monod, Tour 43, 2 Place Jussieu, Paris, F-75005, France.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't