Transcriptome Analysis Revealed Potential Immune-Related Genes of Head Kidney in the Yellow Catfish (<i>Pelteobagrus fulvidraco</i>) Challenged with <i>Aeromonas hydrophila</i>
Senhao Jiang,
Yuting Lei,
Ti Wang,
Ruiting Ma,
Chunqiang Hou,
Qiuning Liu
Affiliations
Senhao Jiang
Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Biology and Agriculture, School of Wetland, Yancheng Teachers University, Yancheng 224007, China
Yuting Lei
Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Biology and Agriculture, School of Wetland, Yancheng Teachers University, Yancheng 224007, China
Ti Wang
Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Biology and Agriculture, School of Wetland, Yancheng Teachers University, Yancheng 224007, China
Ruiting Ma
Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Biology and Agriculture, School of Wetland, Yancheng Teachers University, Yancheng 224007, China
Chunqiang Hou
Fisheries Research Institute of Tianjin, Tianjin 300221, China
Qiuning Liu
Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Biology and Agriculture, School of Wetland, Yancheng Teachers University, Yancheng 224007, China
Yellow catfish (Pelteobagrus fulvidraco) is an important freshwater fish species in aquaculture. However, as intensive farming has rapidly expanded, infectious diseases caused by various bacteria, such as Aeromonas hydrophila, have also increased. We conducted a transcriptomic analysis of head kidney from P. fulvidraco stimulated by A. hydrophila strain SHOU. A total of 43,249 unigenes with an average length of 1342 bp were obtained following assembly and annotation. By analyzing GO and KEGG enrichment, many differentially expressed genes (DEGs) and pathways related to immunity were identified. Out of the 973 DEGs that were identified, 553 were upregulated and 420 were downregulated. Moreover, KEGG enrichment analysis revealed that the innate immune system, including the TNF signaling pathway, NF-kappa B signaling pathway, and the Toll-like receptor signaling pathway involved in the defense, is activated against infectious response. Real-time quantitative reverse transcription-PCR (qRT-PCR) analysis demonstrated that immune response genes were upregulated in response to A. hydrophila stimulation compared to the control. In conclusion, this study provides valuable insights into the immune defense mechanism of P. fulvidraco and sheds light on the host immune genes involved in the response to bacterial infection.
