Mitochondrial and nuclear DNA analyses reveal population differentiation in Brazilian Creole sheep

Using ND5 sequences from mtDNA and 10 nuclear markers, we investigated the genetic differentiation of two South American Creole sheep phenotypes that historically have been bred in different biomes in southern Brazil. In total, 18 unique mtDNA haplotypes were detected, none of which was shared betwe...

Full description

Saved in:
Bibliographic Details
Published in:Animal genetics 2010-06, Vol.41 (3), p.308-310
Main Authors: Gonçalves, G.L, Moreira, G.R.P, Freitas, T.R.O, Hepp, D, Passos, D.T, Weimer, T.A
Format: Article
Language:English
Subjects:
Animals
Bayes Theorem
Bayesian analysis
Body Size
Deoxyribonucleic acid
DNA
DNA, Mitochondrial - genetics
Evolution
evolutionary history
genetic diversity
genetic variation
Genetics, Population
Mitochondrial DNA
population structure
Sequence Analysis, DNA
Sheep, Domestic - anatomy & histology
Sheep, Domestic - genetics
Sheep, Domestic - physiology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using ND5 sequences from mtDNA and 10 nuclear markers, we investigated the genetic differentiation of two South American Creole sheep phenotypes that historically have been bred in different biomes in southern Brazil. In total, 18 unique mtDNA haplotypes were detected, none of which was shared between the two phenotypes. Bayesian analysis also indicated two different groups (k = 2). Thus, these varieties are supported as being genotypically distinct. This situation could have resulted either from geographical isolation, associated with differences in the cultural habits of sheep farmers and in the way that flocks were managed, or more likely, from the introduction of different stocks four centuries ago.
ISSN:0268-9146
1365-2052
DOI:10.1111/j.1365-2052.2009.01986.x