华北农学报 ›› 2025, Vol. 40 ›› Issue (5): 231-238. doi: 10.7668/hbnxb.20195469

• 畜牧·水产·兽医 • 上一篇    

中国大鲵Galectin-3基因克隆、生物信息学及表达特性分析

商文聪1,2,3,4, 黎琴容1,2,3,4, 吴飞凡1,2,3, 苏淑贤1,2,3, 骆建林1,2,3,4, 王开卓1,2,3,4, 王慧1,2,3,4, 孟永禄1,2,3,4, 叶婷1,2,3,4, 李灿1,2,3,4,   

  1. 1 贵阳学院, 贵州 贵阳 550005
    2 贵州省山地生物资源保护和高效利用工程研究中心, 贵州 贵阳 550005
    3 贵州省山地珍稀动物与经济昆虫重点实验室, 贵州 贵阳 550005
    4 贵阳市农业(生态渔业)产业技术创新中心, 贵州 贵阳 550005
  • 收稿日期:2024-11-29 出版日期:2025-11-03
  • 通讯作者:
    李 灿(1979—),男,贵州贵阳人,教授,博士,主要从事山地珍稀动物与经济昆虫研究。
  • 作者简介:

    商文聪(1986—),女,山东荣成人,副教授,博士,硕士生导师,主要从事中国大鲵病害免疫及大鲵功能蛋白的开发与应用研究。

  • 基金资助:
    贵州省基础研究计划项目(黔科合基础-ZK〔2022〕一般011(黔科合基础-ZK〔2022〕一般011); 贵阳学院博士科研启动基金项目(2019039510819); 贵州省普通高等学校青年科技人才成长项目(黔教合KY字[2020]091); 中央财政引导地方科技发展专项(QKZYD〔2022〕4013); 贵州省科技厅贵州省山地珍稀动物与经济昆虫重点实验室项目(k18200006)

Cloning,Bioinformatics and Expression Characteristics Analysis of Galectin-3 Gene in Chinese Giant Salamander

SHANG Wencong1,2,3,4, LI Qinrong1,2,3,4, WU Feifan1,2,3, SU Shuxian1,2,3, LUO Jianlin1,2,3,4, WANG Kaizhuo1,2,3,4, WANG Hui1,2,3,4, MENG Yonglu1,2,3,4, YE Ting1,2,3,4, LI Can1,2,3,4,   

  1. 1 Guiyang University, Guiyang 550005, China
    2 Guizhou Provincial Engineering Research Center for Biological Resources Protection and Efficient Utilization of the Mountainous Region, Guiyang 550005, China
    3 Guizhou Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Guiyang 550005, China
    4 Guiyang Agricultural(Ecological Fishery) Industry Technology Innovation Center,, Guiyang 550005, China
  • Received:2024-11-29 Published:2025-11-03

摘要: 为明确中国大鲵Galectin-3基因的分子生物学特征以及染菌前后的表达模式,通过RT-PCR技术对大鲵Galectin-3基因进行了扩增,通过生物信息学技术分析其理化性质和蛋白结构,利用实时荧光定量PCR(qRT-PCR)技术检测了嗜水气单胞菌侵染前后中国大鲵不同组织中Galectin-3的表达情况。结果表明,大鲵Galectin-3基因CDS区长度为351 bp,编码116个氨基酸,理论等电点(pI)为5.87,相对分子质量为13.53 ku,为稳定的亲水蛋白,定位于细胞质;结构分析显示,大鲵Galectin-3蛋白含有一个GLECT结构域;系统发育进化树显示,大鲵Galectin-3氨基酸序列与双条吻蚓的亲缘关系最近。qRT-PCR结果显示,大鲵Galectin-3在所测各组织中均有表达,且在皮肤中的相对表达量最高;在大鲵肝脏、肌肉、肠和肾脏组织中,嗜水气单胞菌感染12 h,Galectin-3的相对表达量显著上升并达到最高值;而在大鲵脾脏和皮肤组织中,嗜水气单胞菌感染48 h,Galectin-3的相对表达量显著上升并达到最高值。综上,在外源菌的侵染下大鲵Galectin-3基因在早期积极响应表达,揭示Galectin-3基因可能参与了大鲵的免疫调控作用。

关键词: 大鲵, Galectin-3, 生物信息学分析, 实时荧光定量PCR, 嗜水气单胞菌

Abstract:

In order to identify the molecular biological characteristics and expression patterns of Galectin-3 gene in Chinese giant salamander before and after infection,the Galectin-3 gene was amplified by RT-PCR,and its physicochemical properties and protein structure were analyzed by bioinformatics.Real-time Quantitative PCR(qRT-PCR)was used to detect the expression of Galectin-3 in different tissues of Chinese giant salamanders before and after Aeromonas hydrophila.The results showed that the length of Galectin-3 gene CDS region was 351 bp,encoding 116 amino acids,the theoretical isoelectric point(pI)was 5.87,the relative molecular weight was 13.53 ku,and it was a stable hydrophilic protein located in the cytoplasm.Structural analysis showed that Galectin-3 protein contained a GLECT domain.The phylogenetic tree showed that the Galectin-3 amino acid sequence was closely related to Rhinatrema bivittatum.qRT-PCR results showed that Galectin-3 was expressed in all tested tissues of the salamander,and the relative expression level was the highest in the skin.The relative expression levels of Galectin-3 in the liver,muscle,intestines and kidneys of Chinese giant salamander increased significantly and reached the highest value at 12 h of infection with A.hydrophila.The relative expression levels of Galectin-3 in the spleen and skin of Chinese giant salamander increased significantly and reached the highest value at 48 h of infection with A.hydrophila.In conclusion,Galectin-3 gene was actively expressed in the early stage of salamander infected by foreign bacteria,suggesting that Galectin-3 gene may be involved in the immune regulation of salamander.

Key words: Andrias davidianus, Galectin-3, Bioinformatics analysis, Real-time Fluorescence Quantitative PCR, Aeromonas hydrophila

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引用本文

商文聪, 黎琴容, 吴飞凡, 苏淑贤, 骆建林, 王开卓, 王慧, 孟永禄, 叶婷, 李灿. 中国大鲵Galectin-3基因克隆、生物信息学及表达特性分析[J]. 华北农学报, 2025, 40(5): 231-238. doi: 10.7668/hbnxb.20195469.

SHANG Wencong, LI Qinrong, WU Feifan, SU Shuxian, LUO Jianlin, WANG Kaizhuo, WANG Hui, MENG Yonglu, YE Ting, LI Can. Cloning,Bioinformatics and Expression Characteristics Analysis of Galectin-3 Gene in Chinese Giant Salamander[J]. Acta Agriculturae Boreali-Sinica, 2025, 40(5): 231-238. doi: 10.7668/hbnxb.20195469.