Affiliation:
1. Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction of the Ministry of Education and Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture Huazhong Agricultural University Wuhan China
2. The Cooperative Innovation Center for Sustainable Pig Production Wuhan China
3. Hubei Hongshan Laboratory Huazhong Agricultural University Wuhan China
Abstract
AbstractThe establishment of high‐quality pork breeds for improving meat quality in the pig industry is needed. The Chuxiang Black (CX) pig is a new breed developed from Chinese local pigs and Western lean pigs that has a high proportion of lean meat and excellent meat quality. However, the characteristics of cis‐regulatory elements in CX pigs are still unknown. In this study, cis‐regulatory elements of muscle and adipose tissues in CX pigs were investigated using ChIP‐seq and RNA sequencing. Compared with the reported cis‐regulatory elements of muscle and adipose tissues, 1768 and 1012 highly activated enhancers and 433 and 275 highly activated promoters in CX muscle and adipose tissues were identified, respectively. Motif analysis showed that transcription factors, such as MEF2A and MEF2C, were core regulators of highly activated enhancers and promoters in muscle. Similarly, the transcription factors JUNB and CUX1 were identified as essential for highly activated enhancers and promoters in CX adipose tissue. These results enrich the resources for the analysis of cis‐regulatory elements in the pig genome and provide new basic data for further meat quality improvement through breeding in pigs.
Funder
National Natural Science Foundation of China