Linked Life Data

19112557

Source:http://linkedlifedata.com/resource/pubmed/id/19112557

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-5-27
pubmed:abstractText
The analysis of nucleolar organizer regions (NORs) using silver (Ag-) staining and in situ hybridization (ISH) in brown trout (Salmo trutta) from various river basins in the Iberian Peninsula revealed high variation in the number and location of NORs. A total of 17 different Ag-NOR sites were revealed in 10 different chromosome pairs. Three different Ag-NOR patterns clustered by river basins and strongly associated to the internal transcribed spacer 1 (ITS1) variation were detected. The main variability in NOR-sites was found in a secondary contact between two divergent lineages of brown trouts at Duero basin. Our results confirmed the abrupt break in the spatial distribution of genetic variation of brown trout populations previously reported at Duero basin. We hypothesize that NOR-site variation might be a consequence of hybridization between divergent lineages of brown trouts and that NORs could play a major role in the maintenance of a hybrid zone in Duero basin via post-zygotic isolation mechanisms.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1573-6857
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
136
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
419-27
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
High Ag-NOR-site variation associated to a secondary contact in brown trout from the Iberian Peninsula.
pubmed:affiliation
Departamento de Genética, Facultad de Veterinaria, Universidad de Santiago de Compostela, Lugo, Spain. paulino.martinez@usc.es
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't