Transcriptome analysis of goldfish (Carassius auratus) in response to Gyrodactylus kobayashii infection
文献类型： 外文期刊
作者： Zhou, Shun 1 ; Liu, Yongtao 1 ; Dong, Jing 1 ; Yang, Qiuhong 1 ; Xu, Ning 1 ; Yang, Yibin 1 ; Gu, Zemao 2 ; Ai, Xiaohui 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, 8 Wuda Pk Rd 1, Wuhan 430223, Hubei, Peoples R China
2.Huazhong Agr Univ, Coll Fisheries, Dept Aquat Anim Med, Wuhan 430223, Peoples R China
3.Hu Bei Prov Engn & Technol Res Ctr Aquat Prod Qua, Wuhan 430223, Peoples R China
关键词： Gyrodactylus kobayashii; Transcriptome; Skin; Carassius auratus; Immune response
期刊名称：PARASITOLOGY RESEARCH （ 影响因子：2.289； 五年影响因子：2.403 ）
ISSN： 0932-0113
年卷期：
页码：
收录情况： SCI
摘要： Gyrodactylid monogeneans are widespread parasites of teleost fishes, and infection with these parasites results in high host morbidity and mortality in aquaculture. To comprehensively elucidate the immune mechanisms against Gyrodactylus kobayashii, the transcriptome profiles of goldfish (Carassius auratus) skin after challenge with G. kobayashii were first investigated using next-generation sequencing. Approximately 21 million clean reads per library were obtained, and the average percentage of these clean reads mapped to the reference genome was 82.25%. A total of 556 differentially expressed genes (DEGs), including 344 upregulated and 212 downregulated genes, were identified, and 380 DEGs were successfully annotated and assigned to 95 signaling pathways in Kyoto Encyclopedia of Genes and Genomes (KEGG). In addition, 14 pathways associated with immune response were identified mainly including mTOR signaling pathway, cytokine-cytokine receptor interaction, intestinal immune network for IgA production, toll-like receptor signaling pathway, and phagosome. Twelve genes were selected and validated using qRT-PCR. A similar trend of these genes between RNA-Seq and qRT-PCR was observed, indicating that RNA-Seq data was reliable. Besides, the ALP activity and NO content in serum were significantly higher in the infected goldfish compared with the non-infected goldfish. In summary, this study provides better understandings of immune defense mechanisms of goldfish against G. kobayashii, which will support future molecular research on gyrodactylids and facilitate the prevention and treatment of gyrodactylosis in aquaculture.
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