兔黑素皮质素受体4(MC4R)基因多态性及其与体重及屠体性状的关联研究

doi:10.3724/SP.J.1005.2008.01574

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HEREDITAS ›› 2008, Vol. 30 ›› Issue (12): 1574-1578.doi: 10.3724/SP.J.1005.2008.01574

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Association between single nucleotide polymorphism of MC4R gene and carcass traits in rabbits

JIANG Mei-Shan; CHEN Shi-Yi; LAI Song-Jia; DENG Xiao-Song; CHEN Yun; WAN Jie

College of Animal Science and Technology, Sichuan Agricultural University, Ya’an 625014, China

Received:2008-03-01 Revised:2008-03-01 Online:2008-12-10 Published:2008-12-10
Contact: LAI Song-Jia

Abstract

Abstract:

Single nucleotide polymorphisms in the coding sequence of melanoeortin-4 receptor (MC4R) gene were detected by PCR-SSCP and DNA sequencing method in Harbin white rabbit, Tianfu black rabbit, Belgian hare, ZIKA rabbit, and California rabbit breeds. A→G conversion mutation at base position 237 was found with high frequency in Harbin white rabbit, Belgian hare, and Zika rabbit and low frequency in Tianfu black rabbit and California rabbit. The allele A was pre-dominant allele for each of meat rabbit breeds. AA genotype frequency was higher than AG genotype in the five studied rabbit breeds. GLM analysis for the effect of genotypes on performance traits demonstrated that AG genotype was signifi-cantly associated with body weight, eviscerated weight and feed conversion efficiency (P<0.05), but not significantly asso-ciated with cooking loss (P>0.05). It was concluded from the results that MC4R gene could be a candidate modifier gene that affects or controls body weight and carcass traits of rabbit.

Key words: rabbit, melanoeortin-4 receptor, SNPs, carcass traits

JIANG Mei-Shan, CHEN Shi-Yi, LAI Song-Jia, DENG Xiao-Song, CHEN Yun, WAN Jie. Association between single nucleotide polymorphism of MC4R gene and carcass traits in rabbits[J]. HEREDITAS, 2008, 30(12): 1574-1578.

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Association between single nucleotide polymorphism of MC4R gene and carcass traits in rabbits

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