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mtDNA genetic characterization of an isolated sheep breed in South of Moroccan Atlas

Authors :
Ismaïl Boujenane
Mohammed Piro
Daniel Petit
Asmae Kandoussi
PEIRENE (PEIRENE)
Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST)
Université de Limoges (UNILIM)-Université de Limoges (UNILIM)
Source :
Small Ruminant Research, Small Ruminant Research, Elsevier, 2020, 193, pp.106250-. ⟨10.1016/j.smallrumres.2020.106250⟩
Publication Year :
2020
Publisher :
HAL CCSD, 2020.

Abstract

The present study aims to investigate the genetic variability of the Blanche de Montagne breed (=Siroua sheep). The genetic variability was assessed by the analysis of a 628 bp fragment in the mtDNA of the control region from 32 unrelated animals. Sequence comparison revealed 44 polymorphic sites, of which 16 were parsimony informative and 28 were singletons. Haplotype diversity and nucleotide diversity were 0.970 and 0.013, respectively, indicating a correct level of diversity. A total of 24 haplotypes were distinguished and phylogenetic analysis detected two maternal lineages (haplogroups B and C) with a predominance of haplogroup B. Neutrality tests indicated a demographic expansion of the breed in the past. Network analysis suggested a strong genetic structure of the breed and displayed a low level of inbreeding.

Details

Language :
English
ISSN :
09214488
Database :
OpenAIRE
Journal :
Small Ruminant Research, Small Ruminant Research, Elsevier, 2020, 193, pp.106250-. ⟨10.1016/j.smallrumres.2020.106250⟩
Accession number :
edsair.doi.dedup.....dc8f363310f2941d99c64d54f2ca40ab
Full Text :
https://doi.org/10.1016/j.smallrumres.2020.106250⟩