Linked Life Data

12424525

Source:http://linkedlifedata.com/resource/pubmed/id/12424525

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2002-11-8
pubmed:abstractText
The actin genes of five nearctic species of the Drosophila obscura group were mapped by in situ hybridization, using the 5C actin gene of D. melanogaster as a probe. In all species but D. azteca eight actin loci were observed variously dispersed over all five (A- E) chromosomal elements. In D. azteca ten actin hybridization sites were found; four of which most probably originated by duplications or by transposition events. Although the five nearctic species differ from all other Drosophila species of the D. obscura group so far studied in the number of loci as well as in the chromosomal distribution and location of the actin loci, the uniformity of the main pattern with six actin loci throughout the genus Drosophila reinforces the hypothesis that the chromosomal elements have maintained their essential identities during the course of evolution. Our findings are in accordance with the conclusion that the nearctic D. obscura species have differentiated from a common ancestor of the palearctic species and that they belong to two distinct subgroups, the pseudoobscura and the affinis subgroups.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0009-5915
pubmed:author
pubmed:issnType
Print
pubmed:volume
111
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
256-66
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
The actin loci in the genus Drosophila: establishment of chromosomal homologies among five nearctic species of the Drosophila obscura group by in situ hybridization.
pubmed:affiliation
Department of Genetics, Agricultural University of Athens, Greece.
pubmed:publicationType
Journal Article