Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (10): 2698-2709.doi: 10.11843/j.issn.0366-6964.2021.010.002

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Research Progress of microRNA Regulation on the Fat Deposition of Subcutaneous Adipose Tissue and Intramuscular Fat in Animals

YUE Yongqi1,3, HUA Yonglin3, XIONG Yan1,2,3*, LIN Yaqiu1,3, XIONG Xianrong1,2,3, LI Jian1,2,3*   

  1. 1. Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Ministry of Education, Chengdu 610041, China;
    2. Sichuan Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu 610041, China;
    3. College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
  • Received:2020-12-22 Online:2021-10-23 Published:2021-10-27

Abstract: Adipose tissues are the important energy metabolism and endocrine organs for animals. Selective fat deposition plays a vital role in the sensory quality, flavor and processing characteristics of animal meat. Therefore, the specific regulatory factors and molecular mechanisms of fat deposition in different parts of animals have attracted the attention of researchers. microRNA (miRNA) was regarded as a family of small non-coding RNA with a length of 22 nt. In recent years, omics technology has been used for high-throughput sequencing of adipose tissues and adipocytes with phenotypic differences, many differentially expressed miRNAs have been screened and found. These miRNAs can perform biological functions by combining with target gene mRNA. The differentially expressed miRNAs in adipose tissues play an important role in the regulation of fat deposition. Here, this review will summarize the function of miRNA involved in subcutaneous adipose tissue and intramuscular adipose tissues of animal, so as to provide theoretical references and new ideas for the further exploration of miRNA regulating on the specific adipose deposition of animal.

Key words: miRNA, fat deposition, subcutaneous adipose tissue, intramuscular fat

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