Genetic Diversity in terms of GHR Gene in Some Cattle Breeds Raised in Turkey

Özden Çobanoğlu


In this study, it is aimed to determine GHR gene polymorphism in dairy cattle and some native cattle breeds raised in different regions of Turkey. The study was carried out by 468 Holstein, 280 Jersey, 93 Grey Steppe, 86 Native Black, and 64 East Anatolian Red animals. The FIS values of the populations for the GHR gene were detected negatively except for Grey Steppe and Native Black. FIS value was found 14% and negative with reference to heterozygote genotype was higher than homozygote genotypes in overall population. The expected deviations from the Hardy-Weinberg Equilibrium in terms of the GHR locus were found significant in these five different breeds except for Native Black. The genetic distance values among the populations were calculated between 0.0004 and 0.1881. Based on the cluster analysis, Holstein and East Anatolian Red were located in close cluster; however Jersey, Native Black and Grey Steppe were grouped as in different clusters. As a result, the genetic variation in five different cattle breeds grown in our country in terms of GHR gene has been determined by genetic clustering analysis. Therefore, it can be said that it is possible to increase the level of the yield traits in these breeds based on a genetic progression.


GHR; Genetic variation; PCR-RFLP; SNP; Dairy Cattle

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ISSN: 2148-127X

Turkish JAF Sci.Tech.

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