湖北农业科学 ›› 2022, Vol. 61 ›› Issue (5): 56-59.doi: 10.14088/j.cnki.issn0439-8114.2022.05.011

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从江田鱼肠道微生物多样性分析

李小义, 申晓东, 张效平, 杨星, 关梅, 王雪   

  1. 贵州省农业科学院水产研究所/贵州省特种水产工程技术中心,贵阳 550025
  • 收稿日期:2021-03-17 出版日期:2022-03-10 发布日期:2022-04-01
  • 通讯作者: 申晓东(1971-),男,贵州遵义人,高级水产工程师,(电子信箱) 1093454791@qq.com。
  • 作者简介:李小义(1988-),女,重庆人,助理研究员,硕士,主要从事水产养殖病害防治研究,(电话)18684153961(电子信箱)lxyw2020@yeah.net。
  • 基金资助:
    贵州省科技计划项目(黔科合支撑[2017]2537); 国家自然科学基金地区基金项目(31660746); 贵州省特色水产产业技术体系(GZCYTX2019-01102); 国家特色淡水鱼产业技术体系贵阳综合试验站(CARS-46)

Analysis of the bacterial diversity in the Congjiang field carp’s intestine

LI Xiao-yi, SHEN Xiao-dong, ZHANG Xiao-ping, YANG Xing, GUAN Mei, WANG Xue   

  1. Guizhou Fisheries Research Institute, Guizhou Academy of Agricultural Sciences/Guizhou Special Aquatic Products Engineering Technology Center, Guiyang 550025, China
  • Received:2021-03-17 Online:2022-03-10 Published:2022-04-01

摘要: 对不同养殖时间点(1 d、2个月、5个月)的从江田鱼肠道细菌进行了测序分析。结果表明,RS1(1 d)和RS3(5个月)组样品肠道细菌多样性高于RS2(2个月)组。门水平分析,RS1组样品中厚壁菌门(Firmicutes,33.43%)、蓝细菌(Cyanobacteria,28.15%)、变形菌门(Proteobacteria,22.94%)和拟杆菌门(Bacteroidetes,9.79%)为主要优势菌;RS2组样品中的优势菌门为变形菌门,所占丰度为94.05%,其次为厚壁菌门(2.58%)、梭杆菌门(Fusobacteria,2.05%)和放线菌门(Actinobacteria,0.68%)。RS3组样品中优势菌门为蓝细菌(40.69%)、变形菌门(31.65%)、梭杆菌门(10.30%)和厚壁菌门(8.89%)。属水平分析, RS1组微生物多样性较高,未分类的蓝细菌(unidentified Cyanobacteria,28.11%)丰度最高,其次为Romboutsia(13.33%)、未分类的梭菌属(unidentified Clostridiales,8.37%)、鞘氨醇单胞菌(Sphingomonas,4.62%)等菌属。RS2组样品中,气单胞菌属(Aeromonas)相对丰度最高,为68.86%。RS3组样品中,未分类的蓝细菌相对丰度最高,为40.63%;其次是气单胞菌属(12.41%)、鲸杆菌属(Cetobacterium,10.20%)等菌属。研究结果表明,稻田养殖系统中从江田鱼的肠道细菌群落在不同生长阶段变化明显。

关键词: 肠道细菌, 从江田鱼, 多样性, 高通量测序

Abstract: The intestinal bacterial community at three different stages in Congjiang field carp (1 d, 2 months,5 months) were sequenced and analyzed. The results showed that the RS1(1 d) and RS3 (5 months) group had higher bacterial diversity than the RS2 (2 months) group. At the phylum level,Firmicutes(33.43%), Cyanobacteria (28.15%),Proteobacteria(22.94%) and Bacteroidetes (9.79%) dominated the microbiota of the RS1. The intestinal bacterial community in RS2 was dominated by Proteobacteria (94.05%), followed by Firmicutes (2.58%), Fusobacteria (2.05%) and Actinobacteria (0.68%). The dominant bacteria in RS3 group were Cyanobacteria (40.69%), Proteobacteria (31.65%), Fusobacteria (10.30%) and Firmicutes (8.89%). At the genus level, The RS1 had high microbial diversity, with the highest abundance of unidentified Cyanobacteria (28.11%), followed by Romboutsia (13.33%), unidentified Clostridiales (8.37%) and Sphingomonas (4.62%). Aeromonas (68.86%) had the highest relative abundance in the RS2. The intestinal bacterial community in RS3 was dominated by unidentified Cyanobacteria (40.63%), followed by Aeromonas (12.41%) and Cetobacterium (10.20%). The results showed that the the intestinal bacterial community of Congjiang field carp in the paddy field culture system changed significantly at different growth stages.

Key words: intestinal microflora, Congjiang field carp, diversity, high-throughput sequencing

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