Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (2): 206-216. doi: 10.7668/hbnxb.20193330

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• Animal Husbandry · Fisheries · Veterinarian • Previous Articles     Next Articles

Transcriptome Characterization of Hybrid Sturgeon Skin under Alkaline Stress

LIU Xiafei1,2, YANG Helin1, WANG Nianmin1, LÜ Weihua1, XU Wei1, CAO Dingchen1, ZHANG Ying1   

  1. 1. Heilongjiang River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Harbin 150070,China
    2. College of Fisheries and Life Science,Dalian Ocean University,Dalian 116023,China
  • Received:2022-12-28 Published:2023-04-28

Abstract:

To investigate the effect of alkaline stress on the skin physiology of hybrid sturgeon(Huso dauricus♀×Acipenser schrenckii♂),we investigated the molecular characteristics of the skin tissue of hybrid sturgeon under alkaline stress and normal breeding water conditions by transcriptome sequencing.The total number of differentially expressed genes(DEGs)between control and stress groups was the result showed that was 1 849,of which 1 302 genes were up-regulated genes and 547 genes were down-regulated in the skin tissue of the stress group.GO clustering of differentially expressed genes showed that they were mainly enriched in seven GO terms,including regulation of cytoplasmic calcium ion concentration,muscle contraction,troponin complex,troponin T binding,and troponin C binding.KEGG enrichment analysis revealed that glycine,serine and threonine metabolism,protein digestion and absorption,starch and sucrose metabolism were significantly enriched pathways.Interaction network analysis of metabolic pathways revealed that the core metabolic pathways of hybrid sturgeon skin under alkaline stress were the adherent patch,protein digestion and absorption and platelet activation,complement and coagulation cascade and hypoxia-inducible factor-1 signaling pathways as the main efficient pathways.Interaction network analysis of metabolic pathways indicated that the core metabolic pathways of hybrid sturgeon skin under alkaline stress were the adherent patch,protein digestion and absorption and platelet activation,complement and coagulation cascade and hypoxia-inducible factor-1 signaling pathways as the main efficient pathways.The results of histological sections showed that the skin and kidney tissues of hybrid sturgeon were severely damaged by alkaline stress,and the glomeruli and tubules were significantly wrinkled,especially the atrophy of the distal tubules,and the epithelial cells of the glomeruli were reduced in size,and the walls of the tubules were thinned or even detached;the number of mucous cells in the skin tissues increased with the increase of alkalinity,and the nuclei of rod-shaped cells were solidified and arranged more closely under alkaline stress.

Key words: Hybrid sturgeon(Huso dauricus♀×Acipenser schrenckii♂), Alkaline stress, Transcriptome, Skin, Histological sections, Metabolic pathway networks

Cite this article

LIU Xiafei, YANG Helin, WANG Nianmin, LÜ Weihua, XU Wei, CAO Dingchen, ZHANG Ying. Transcriptome Characterization of Hybrid Sturgeon Skin under Alkaline Stress[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(2): 206-216. doi: 10.7668/hbnxb.20193330.

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