Analysis of genetic diversity and differentiation of sheep populations in Jordan
| Autor: | M. J. Tabbaa, Naser M. Salameh, Raed M. Al-Atiyat |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Genetics
Genetic diversity education.field_of_study lcsh:Biotechnology Population Awassi sheep Zoology Locus (genetics) DNA microsatellite Biology Applied Microbiology and Biotechnology Crossbreed Awassi Loss of heterozygosity lcsh:Biology (General) lcsh:TP248.13-248.65 Microsatellite Genetic diversity and differentiation Allele education lcsh:QH301-705.5 Biotechnology |
| Zdroj: | Electronic Journal of Biotechnology, Vol 17, Iss 4, Pp 168-173 (2014) Electronic Journal of Biotechnology, Volume: 17, Issue: 4, Pages: 168-173, Published: JUL 2014 Electronic Journal of Biotechnology v.17 n.4 2014 SciELO Chile CONICYT Chile instacron:CONICYT |
| ISSN: | 0717-3458 |
| Popis: | Article history:Received 24 October 2013Accepted 9 April 2014Available online 5 May 2014Keywords:Awassi sheepDNA microsatelliteGenetic diversity and differentiation Background: Genetic diversity of sheep in Jordan was investigated using microsatellite markers (MS). Six ovineand bovine MS located on chromosomes 2 and 6 of sheep genome were genotyped on 294 individual from tengeographical regions.Results: The number of alleles per locus (A), the expected heterozygosity ( H e ) and observed heterozygosity ( H o )weremeasured.Overall A,H e and H o were12.67,0.820and0.684,respectively .Ontheotherhand,geneticdistancesundoubtedly revealed the expected degree of di fferentiation among the studied populations. The finding showedclosenessofthreepopulationsfromsouth(Maan,ShowbakandTafeilah)toeachother.Populationsfromthemiddleregions of Jordan (Karak, Madaba, Amman, AzZarqa and Mafraq) were found to be in one cluster. Only twopopulations of the middle region were an exception: AlSalt and Dead Sea. Finally, sheep populations from Irbidwere located in separated cluster. It was clear that the studied prede fined populations were subdivided from fourpopulations and would be most probably accounted as ance stral populations. These results indicate that numberof population is less than the prede fined population as ten based on geographical sampling areas.Conclusions: The possible inference might be that geographical loc ation, genetic migration, similar selection forces,and common ancestor account for population admixture and subdivision of Awassi sheep breed in Jordan. Finally,the present study sheds new light on the molecular and po pulation genetics of Awassi sheep from different regionsof Jordan and to utilize the possible findings for future management of genetic conservation under conditions ofclimate changes and crossbreeding policy.©2014Pontificia UniversidadCatolicadeValparaiso. Production and hosting byElsevierB.V. Allrights reserved. |
| Databáze: | OpenAIRE |
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