Linked Life Data

11683715

Source:http://linkedlifedata.com/resource/pubmed/id/11683715

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2001-10-30
pubmed:abstractText
Amplified fragment length polymorphism (AFLP) markers were used to investigate the genetic variation in a sample of seven goat (Capra hircus) populations. A total of 210 individuals (30 per population) were analysed using seven selected AFLP primer combinations that produced 219 clear polymorphisms. Four autochthonous goat breeds (Bionda dell'Adamello, Frisa, Orobica and Verzaschese), two primary populations, one from the Lombardy Alps (Val di Livo) and the other from Sardinia island (Sarda) and a reference cosmopolitan breed (Saanen) were included in the analysis. The expected heterozygosity (Het) did not differ significantly among breeds (range 0.21-0.24). No breed specific markers were identified. The variability at AFLP loci was largely maintained within breeds, as indicated by the coefficient of genetic differentiation (Gst) value (0.11). Dice similarities calculated between pairs of individuals belonging to the same or to different breeds largely overlapped. Bootstrapping on markers indicated that the coefficient of variation (CV) of the genetic indexes tested decreases only marginally by adding markers over 100 AFLPs. Cluster analysis based on standard genetic distance between breeds indicates that Sarda is the most distant population, while Bionda, Frisa, Verzaschese and Val di Livo seem to be highly related populations. Interestingly, Saanen is closer than Orobica to the other four goat populations of the Lombardy Alps. Principal co-ordinates analysis based on Dice similarities confirms these observations. Genetic diversity of the goat populations investigated confirms what is expected on the basis of their geographical location. Results from Orobica are not correlated with geographical distances and may reflect undocumented migrations and gene flows and identify an original genetic resource.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0268-9146
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
281-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Assessing genetic diversity in Italian goat populations using AFLP markers.
pubmed:affiliation
Istituto di Zootecnica, Università Cattolica del S. Cuore, Piacenza, Italy. ajmone@pc.unicatt.it
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't