Genetic structure of Iranian indigenous sheep breeds: insights for conservation

Tropical Animal Health and Production
Otsanda Ruiz-LarrañagaAli Esmailizadeh

Abstract

Genetic structure and genetic diversity levels of indigenous Iranian sheep breeds are not clear, despite the interest this region has in itself as an important center for domestication of livestock. Early population genetic studies have reported high levels of diversity among Iranian sheep breeds until recently, when high admixture levels and genetic homogeneity have been detected. The rapid reduction of diversity observed in Iranian breeds might be due to an increasing trend of intensive crossbreeding practices or even total replacement of native breeds by highly specialized and productive ones. From a conservative perspective, this situation is highly concerning; thus, it might be wise to consider a conservation program in Iran to preserve the original genetic diversity in native sheep breeds. In this study, a total of 1065 animals with the purest morphological features representing 24 Iranian indigenous sheep breeds were sampled, corresponding to ancestral breed diversity. These samples were genotyped for 17 microsatellite loci in order to (1) determine the native ancestral diversity of Iranian breeds, (2) define the degree of genetic relationship among studied breeds, and (3) assess conservation priorities among defined gro...Continue Reading

References

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Methods Mentioned

BETA
genotyping

Software Mentioned

Structure Harvester
FSTAT
Microchecker
GENEPOP
GeneScan
Genotyper
STRUCTURE
Metapop

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