China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (3): 799-806.doi: 10.16431/j.cnki.1671-7236.2020.03.018

• Genetics and Breeding • Previous Articles     Next Articles

Detection of InDel of FRZB Gene and Its Association Analysis with Growth Traits in Sheep

CHEN Pingbo1, ZHAO Haidong1, WU Mingli1, WEI Yanpei1, SUN Xiuzhu1,2, WANG Shuhui1   

  1. 1. College of Animal Science and Technology, Northwest A & F University, Yangling 712100, China;
    2. College of Grassland Agriculture, Northwest A & F University, Yangling 712100, China
  • Received:2019-10-17 Online:2020-03-20 Published:2020-03-17

Abstract: In this study,FRZB gene was selected as a candidate gene,582 sheep were selected as experimental materials from four breeds of Tong sheep,Small-tailed Han sheep,Lanzhou Big-tailed sheep and Hu sheep.DNA pool sequencing combined with agarose gel electrophoresis was used to screen the InDel of FRZB gene in order to find the sites of InDel related to the growth traits of four sheep breeds.The results showed that a 14 bp InDel mutation was detected in the first intron of FRZB gene in sheep;The InDel mutation site in the intron region of FRZB gene had three genotypes (II,ID and DD) in Tong Sheep,Small-tailed Han sheep,Lanzhou Big-tailed sheep and Hu sheep populations;Association analysis showed that the InDel mutation detected in FRZB gene had significant effects on the growth traits in Tong sheep.The body length,back height,hip height,talus width,tail length and tail width of II genotype were significantly superior to DD genotype in Tong sheep (P<0.05),it could be used as a candidate molecular marker for the molecular marker-assisted selection of Tong sheep.These results suggested that a novel 14 bp insertion mutation in the first intron of FRZB gene in sheep could be significantly affecting the growth trait of Tong sheep,and could be used as a potential molecular marker for growth traits in sheep breeding.

Key words: sheep; FRZB gene; insertion/deletion; growth traits; association analysis

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