[an error occurred while processing this directive]

HEREDITAS ›› 2012, Vol. 34 ›› Issue (10): 1304-1313.doi: 10.3724/SP.J.1005.2012.01304

• en • Previous Articles     Next Articles

Artificial selection for cattle based on high-density SNP markers

LIU Xi-Dong1,2, WANG Zhi-Peng2, FAN Hui-Zhong1, LI Jun-Ya1, GAO Hui-Jiang1   

  1. 1. Key Laboratory of Farm Animal Genetic Resources and Utilization of Ministry of Agriculture, Beef Cattle Research Center, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China 2. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
  • Received:2012-05-25 Revised:2012-08-13 Online:2012-10-20 Published:2012-10-25

Abstract: With the implementation of genetic improvement in recent years, artificial selection has greatly improved beef cattle production performance and its genetic basis has been dramatically changed. In this study, based on the Illumina BovineSNP50 (54K) and BovineHD (770K) BeadChip and the FST value, we analyzed the genetic differentiation of cattle and screened the imprints of selection in bovine genome. Finally, we found 47104 OUTLIER SNP loci and 3064 candidate genes, for example, CLIC5, TG, CACNA2D1, and FSHR etc. The biological proc-esses and molecular functions of genes were analyzed through gene annotation.The results of this study established a ge-nome-wide map of selection footprints in beef cattle genome and a clue for in-depth study of artificial selection and under-standing of biological evolution.Our results indicate that artificial selection has played an important role in cattle breed genetic improvement.

Key words: bovine genome, artificial selection, single nucleotide polymorphism, gene annotation