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Polymorphisms of the bovine chemokine receptor-like 1 gene and their associations with meat quality traits in Qinchuan cattle ( Bos taurus )
Zhan, Xiaoli; Jiang, Bijie; Ma, Xianghui; Fu, Changzhen & Zan, Linsen
Abstract
Background: We investigated the polymorphisms of the bovine chemokine receptor-like 1(CMKLR1)
gene. The coding region of CMKLR1 was screened in Qinchuan cattle by PCR-RFLP technology.
Results: In this study, we discovered two single nucleotide polymorphisms (SNPs) (264G > C and
762C > T) in the coding region of the CMKLR1 gene. Hence, we described the BmgT120l and Pdm1
PCR-RFLP methods for detecting the 64G > C and 762C > T mutations, respectively. PCR-RFLP and
sequencing were used to analyze the two loci of CMKLR1 gene in 324 individuals, which were
randomly selected from breeding populations. Furthermore, meat quality traits in another 80 Qinchuan
individuals were analyzed by the comparison between the genotypes and their phenotypic data.
Conclusions: The results showed that the G264C SNP and C762T SNP of bovine CMKLR1 were
significantly associated with backfat thickness (BFT) and water holding capacity (WHC), respectively.
Keywords
CMKLR1 gene; meat quality traits; PCR-RFLP; Qinchuan cattle; SNP
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