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Asian Journal of Animal and Veterinary Advances
  Year: 2012 | Volume: 7 | Issue: 5 | Page No.: 376-389
DOI: 10.3923/ajava.2012.376.389
Analysis of Genetic Variation of Fat Tailed-sheep in Southern Region of Jordan
R.M. Al-Atiyat, M.J. Tabbaa, N.M. Salameh, K.A. Tarawneh, L. Al-Shmayla and H.J. Al-Tamimie

Abstract:
Genetic diversity of fat-tailed sheep of Jordan was investigated using microsatellite markers (MS). Six ovine and bovine MS located on chromosomes 2 and 6 of sheep genome were employed for genotyping three flocks in southern region of Jordan. The genetic diversity was evaluated by measuring expected (He) and observed (Ho) heterozygosity, Polymorphic Information Content (PIC) and the number of alleles per locus. The latter indicator showed specific allele frequency profiles in which the level of genetic differentiation between flocks observed as differences in allele frequencies and allele sizes. Therefore, allele frequency profiles were utilized to explain the level of genetic differentiation between flocks. Overall Ho was 0.67 for all flocks, whereas He was 0.70. The average He for each flock was 0.667, 0.652 and 0.716, while PIC was 0.639, 0.643 and 0.714 for flocks 1, 2 and 3, respectively. On the other hand, genetic distances undoubtedly revealed the expected degree of differentiation among the three flocks. The finding showed closeness of flocks 1 and 2 to each other and Flock 3 to Flock 2 than to Flock 1. Despite the three flocks were small in size number, had effective selective mating and gene flow, they matched with the Hardy-Weinberg Equilibrium, strongly proving the usefulness of MS as a genetic tool in population genetics analyses of sheep. From a genetic conservation point of view, it is recommended to maintain genetic diversity of small flocks when genetic migration of good genetic resources is absence. The present study provides new information about the population genetics parameters of fat-tailed sheep in southern Jordan.
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How to cite this article:

R.M. Al-Atiyat, M.J. Tabbaa, N.M. Salameh, K.A. Tarawneh, L. Al-Shmayla and H.J. Al-Tamimie, 2012. Analysis of Genetic Variation of Fat Tailed-sheep in Southern Region of Jordan. Asian Journal of Animal and Veterinary Advances, 7: 376-389.

DOI: 10.3923/ajava.2012.376.389

URL: https://scialert.net/abstract/?doi=ajava.2012.376.389

 
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