Abstract
In the mutton industry, feed efficiency traits have the greatest influence on the economic benefits of sheep raised in housing conditions. In this study, quantitative real-time PCR (qRT-PCR), Sanger sequencing, and KASPar methods were used to detect the expression levels of the B cell scaffold protein with ankyrin repeats 1 (BANK1) gene and the relationship between its polymorphism and feed efficiency traits in Hu sheep. The qRT-PCR results showed that the BANK1 gene was extensively expressed in 10 tissues and it was expressed at remarkably higher levels in lymph than in other tissues (p < 0.05). Then, the polymorphism locus, g.93888 A > T, was detected in intron 4 of the BANK1 gene and proved to be remarkably associated with feed efficiency traits (p < 0.05). Hence, the BANK1 gene can be used as a candidate gene for improving the feed efficiency of Hu sheep and this locus could be used as a potential molecular marker for breeding high-feed efficiency sheep in future breeding efforts.
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