Linked Life Data

12140245

Source:http://linkedlifedata.com/resource/pubmed/id/12140245

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2002-7-25
pubmed:abstractText
A large number of repeats of a satellite DNA (stDNA) family have been cloned and sequenced from species and populations of the genus Pimelia (Tenebrionidae, Coleoptera). The beetles were collected in the Canary Islands, Morocco, the Iberian Peninsula, and the Balearic Islands in order to analyze the evolutionary forces and processes acting on abundant stDNAs conserved at the genus level. This repetitive family is composed of an abundant A-T-rich stDNA, with basic units of 357 bp. All the sequences obtained showed similarity to the 22 repeat units of the PIM357 stDNA family described previously for six Iberian Pimelia species (Pons et al. 1997 ). An analysis based on similarity shows the presence of three different groups of sequences clearly in accordance with their geographical origin. One is composed of satellite sequences from Iberian and Balearic species, a second group from the Moroccan taxa, whereas the third one is from the Pimelia species endemic to the Canary Islands. The latter group shows higher nucleotide diversities for their stDNA sequences and a lack of relationship between transition stages to fixation and sequence divergence. Phylogeographic data of Canarian Pimelia show that the PIM357 stDNA family has persisted for more than 8 Myr and could probably be traced to the origin of the lineage. The data suggest that distinct demographic and phylogenetic patterns related to the colonization of the volcanic Canarian island chain account for particular evolutionary dynamics of the repeat DNA family in this group.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0737-4038
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1329-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Evolutionary dynamics of satellite DNA family PIM357 in species of the genus Pimelia (Tenebrionidae, Coleoptera).
pubmed:affiliation
Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Palma de Mallorca, Balearic Islands, Spain. joap@nhm.ac.uk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't