ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (8): 1539-1545.doi: doi: 10.11843/j.issn.0366-6964.2016.08.003

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Genomic Prediction for Saturated Fatty Acid Content in Simmental using Low Density Chip

QI Xin 1,ZHANG Jing-jing 1,2,FAN Hui-zhong 1,LI Juan 1,HU Xin 1,3,LIU Fei 1,4,ZHU Bo 1,GAO Xue 1,CHEN Yan 1,ZHANG Lu-pei 1,GAO Hui-jiang 1,LI Jun-ya 1*   

  1. (1.Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China;
    2.College of Animal Science and Technology,Jilin Agricultural University,Changchun 130118,China;
    3.College of Animal Science and Technology,Inner Mongolia University for Nationalities,Tongliao 028000,China;
    4.College of Animal Science and Technology,Hebei Agricultural University,Baoding 071000,China)
  • Received:2015-03-06 Online:2016-08-23 Published:2016-08-23

Abstract:

The objective of this study was to explore methods of selection markers and evaluate accuracies of low density (LD) chips.SNPs associated with saturated fatty acid(SFA) content were identified using BovineHD panel and genomic breeding value was evaluated using LD panels which were markers selected on the basis of P-value or effect value on Simmental bulls.Then we evaluated accuracy of genomic prediction via cross-validation (CV) methodologies based on identical by state (IBS) and random sample.A total of 5 SNPs were associated with SFA and adjacent to MYC gene on BTA14,which could be considered as candidate genes.Prediction was the most accurate when markers were selected on the basis of P-value and CV was IBS-based.The accuracy of genomic value in 7 000 SNPs panel was steady.In conclusion,this study identified several SNPs associated with SFA and provided reference for marker selection in LD panels for further study.

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