ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2011, Vol. 42 ›› Issue (11): 1537-1542.doi:

• 遗传繁育 • Previous Articles     Next Articles

Genetic Diversity and Origin Based on Y-SNPs in Chinese Cattle

CHANG Zhenhua1，WEI Lixuan1，ZHANG Runfeng2，GUO Benling1，
HE Cheng1，LAN Xianyong1，CHEN Hong1，LEI Chuzhao1*   

  1. 1. Shanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A & F University, Yangling 712100, China; 2. College of Life Science, Hubei Normal University, Huangshi 435002, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-11-25 Published:2011-11-25
  • Contact: LEI Chuzhao1*

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Abstract: To determine the genetic diversity of Ychromosomal SNPs (single nucleotide polymorphisms) and paternal origin of Chinese cattle，284 bull samples from 16 Chinese native cattle breeds and 4 bulls from Burmese cattle were analyzed using PCRSSCP and sequencing methods based on four YSNPs markers of DDX3Y7，UTY19，ZFY9 and ZFY10.The result showed that 16 Chinese native cattle breeds contained Y2 haplotype (Bos taurus) and Y3 (Bos indicus) haplotype，which corresponded to two patrilines Y2 and Y3.However, no Y1 (Bos taurus) haplotype was detected in Chinese cattle.Y3 (Bos indicus) haplotype was detected in 4 Burmese cattle.Among 16 Chinese cattle breeds，the frequencies of Y2 haplotype and Y3 haplotype were 57.0% and 43.0%，respectively.Y2 haplotype dominated in the northern Chinese cattle group (98.3%)，while Y3 haplotype dominated in the southern Chinese cattle group (76.1%)，Central Chinese cattle group had the higher frequency of Y2 haplotype with 63.8% and the lower frequency of Y3 haplotype with 36.2%.The result indicates that Chinese cattle breeds have two distinct paternal origins of Y2 and Y3 haplotypes. The Y2 haplotype frequency of Chinese cattle decreases from North to South，and Y3 haplotype frequency increases from North to South，so the Central China become a hybrid zone of zebu（Y3） and taurine（Y2） cattle.