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Comparative transcriptome analysis of livers from three strains of Chinese swamp eels

文献类型: 外文期刊

作者: Ruan, Rui 1 ; Chen, Mei 1 ; Yue, Huamei 1 ; Ye, Huan 1 ; Li, Chuangju 1 ;

作者机构: 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Minist Agr & Rural Affairs China, Key Lab Freshwater Biodivers Conservat, Wuhan 430223, Peoples R China

关键词: different body colours; innate immune defences; liver transcriptome; Monopterus albus

期刊名称:AQUACULTURE RESEARCH ( 影响因子:2.082; 五年影响因子:2.415 )

ISSN: 1355-557X

年卷期:

页码:

收录情况: SCI

摘要: Swamp eel or rice field eel (Monopterus albus) is one of the most economically valuable freshwater fishes in China. Based on the body colour patterns, Chinese rice field eels are commonly classified into three strains, including deep-yellow strain (DY), pale-yellow strain (PY) and steel-grey strain (SG). Reports have shown that DY strain is superior to the other two strains at growth rate and fecundity. In the present study, RNA-Seq technology was employed to profile liver transcriptomes of these three strains, and differentially expressed genes (DEGs) were identified. The hierarchical clustering analysis showed that expression patterns of liver transcripts among the three strains were different. A total of 3,296 DEGs, 3,043 DEGs and 143 DEGs were identified, respectively, from DY versus SG, DY versus PY and PY versus SG. The three comparison groups shared three DEGs, of which one DEG (batf) played a vital role in immune system. Functional enrichment analyses of DEGs in DY versus PY and DY versus SG revealed that significantly enriched Gene Ontology terms and KEGG pathways were mainly involved in innate immune responses and lipid metabolism. Additionally, most of DEGs related to immunity were mainly up-regulated in DY compared to PY and SG. The above results indicated that the DY strain might have strong adaptability and resistance to disease, which might support their superiority for better growth and reproduction.

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