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¹ Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Jingzhou 434020, China
² Yangtze University, School of Animal Science, Jingzhou, 434020, China
³ Yangtze River Fisheries Research Institute, Key Lab of Freshwater Biodiversity Conservation Ministry of AgricultureChinese Academy of Fishery Sciences, Wuhan 430223, China DOI : 10.4194/1303-2712-v19_10_06 Viewed : 2794 - Downloaded : 2097 Immune-related genes are well-established positive modulators that regulate a variety of signaling pathways in cells and tissues. However, no information is available concerning the similarity of immune-related genes between Dabry`s sturgeon (Acipenser dabryanus) and Chinese sturgeon (Acipenser sinensis). A previous study showed that Dabry`s sturgeon is seldom affected by infectious diseases, while Chinese sturgeon frequently dies from a variety of diseases. In the present study, de novo sequencing was used to obtain abundant high-quality gene information and investigate differentially expressed genes between Dabry`s sturgeon and Chinese sturgeon. Protein similarity analysis indicated that 96 immune-related genes with complete cDNA sequences were obtained from the transcriptome library of Chinese sturgeon and Dabry`s sturgeon. The similarity of these immune-related genes was further classified into three groups: 100% (16 genes, 16.7%), 98–99.9% (55 genes, 57.3%), and 80–97% (25 genes, 26%). These immunity genes were further classified into five signaling pathway, including complement and coagulation cascade, the Toll-like receptor signaling pathway, NODlike receptor signaling pathway, JAK-STAT signaling pathway, and RIG-I-like receptor signaling pathway. Most immune-related genes studied here belong to the pathway of complement and coagulation. Collectively, the research demonstrated that similarity analysis of immune-related genes in signaling pathways might provide valuable theoretical resources to understanding the mechanism of disease susceptibility in Chinese sturgeon and Dabry`s sturgeon. Keywords : Chinese sturgeon, Dabry`s sturgeon, Immune-related genes