Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (3): 507-516.DOI: 10.3969/j.issn.1004-1524.2022.03.11

• Animal Science • Previous Articles     Next Articles

Screening and functional analysis of differentially expressed genes in breast muscle transcriptome between Plateau raindrop pigeon and Janssen pigeon

LAN Guoxiang1(), JIN Siqi1, LI Xingrun2, LIU Xiyu2, LI Guomei1, DONG Xinxing1,*   

  1. 1. College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
    2. Department of Animal Science, Dali Vocational and Technical College of Agriculture and Forestry, Dali 671003, Yunnan, China
  • Received:2021-07-02 Online:2022-03-25 Published:2022-03-30
  • Contact: DONG Xinxing

Abstract:

Screening key genes for the difference in pectoral flight ability between Plateau raindrop pigeon and Janssen pigeon can lay foundation for breeding pigeons. Each 3 Plateau raindrop pigeons (JG) and Janssen pigeons (JS) with the same sex, similar body condition and age were selected. After slaughter, breast muscle tissues were taken for transcriptome sequencing and then differentially expressed genes (DEGs) were screened, Gene Ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis and protein interaction network analysis were performed on the DEGs. The results showed that there were 75 significantly DEGs in the breast muscle transcriptome between JG and JS, including 49 up-regulated genes and 26 down-regulated genes. GO enrichment analysis results showed that DEGs were enriched in items such as skeletal muscle cell differentiation, regulation of cellular metabolic process. KEGG pathway analysis showed that DEGs were significant enriched in insulin signaling pathway, AMPK signaling pathway, etc. Compared with the JS,SMYD1, STAT1, VEGFA, PPM1K and PLCE1 genes in breast muscle of the JG were up-regulated, while MYOD1, SOCS3 and MGLL genes were down-regulated. The results showed that STAT1 and MYOD1 might cause breast muscle growth of JG to be slower than that of JS. SOCS3 might cause muscle fiber diameter of the breast muscle of the JG to become smaller and explosive power to decrease at the same time. PLCE1 might cause increase of muscle fibers in the breast muscle of JG. SMYD1 might cause muscle fiber differentiation to form more red muscle fibers. VEGFA might cause white adipose in JGs to be converted into brown adipose. PPM1K and MGLL might catalyze the decomposition of branched chain amino acids, providing enough energy for the long-distance load-bearing flight of the JG, which made they more suitable for long-distance flight.

Key words: Plateau raindrop pigeons, Janssen pigeons, transcriptome, differentially expressed genes, breast muscle

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