Study on Genetic Diversity of Microsatellite Marker OarFCB128 in 5 Sheep Breeds

[Objective]The research aimed to study the genetic diversity of microsatellite marker OarFCB128 in 5 sheep breeds.[Method] Gene frequency,polymorphism information contents,number of effective alleles and heterozygosity were analyzed in Tibet sheep,Lanzhou large-tailed sheep,Mongolia sheep,Small-tailed Han sheep and Poll Dorset sheep by using microsatellite marker OarFCB128.[Result]The results revealed polymorphism information contents of the Tibet sheep,Lanzhou large-tailed sheep,Mongolia sheep,Small-tailed Han sheep and Poll Dorset sheep were 0.840 4,0.892 2,0.907 5,0.909 4,0.772 8 resp.,number of effective alleles the Tibet sheep,Lanzhou largetailed sheep,Mongolia sheep,Small-tailed Han sheep and Poll Dorset sheep were 7.241 4,11.514 0,12.682 0,12.875 0,5.267 4 resp.,and heterozygosity the Tibet sheep,Lanzhou large-tailed sheep,Mongolia sheep,Small-tailed Han sheep and Poll Dorset sheep were 0.861 9,0.913 1,0.921 1,0.922 3,0.810 2 resp..[Conclusion]There is abundant genetic polymorphism at microsatellite marker OarFCB128 in 5 sheep breeds,the marker can be used to evaluate genetic diversity in sheep breed.