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4种不同类型马苏大麻哈鱼的肠道菌群多样性及功能特征比较
基金项目(Foundation): 吉林省科技发展计划项目(20240303073NC); 国家现代农业产业技术体系项目(CARS-46)
邮箱(Email): wgqjlau@aliyun.com
DOI:
发布时间: 2025-05-23
出版时间: 2025-05-23
网络发布时间: 2025-05-23
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摘要:

为探讨四种不同类型的马苏大麻哈鱼(Oncorhynchus masou)肠道微生物组的结构与功能差异,试验采用16S rRNA测序方法分析陆封型、洄游型、陆封型三倍体和陆封型选育马苏大麻哈鱼的肠道菌群结构,探究因环境适应(陆封型vs洄游型)和遗传干预(陆封型vs陆封型三倍体、陆封型vs陆封型选育)造成的菌群多样性及功能特征之间的异同。结果表明,与陆封型组相比,洄游型组的物种组成发生明显变化,陆封型三倍体组仍然保留了陆封型组的菌群特征,而陆封型选育组的肠道菌群结构则形成了独特的模式。具体看来,与陆封型组相比,洄游型组的Shannon指数显著降低,陆封型选育组的Ace、Chao1、Simpson和Shannon指数极显著降低,而陆封型三倍体组与陆封型组之间以上指数均没有显著差异。β多样性分析进一步发现,与陆封型组相比,洄游型组和陆封型三倍体组表现出不同程度的重叠,而陆封型选育组显示出明显的分离。BugBase分析揭示了菌群功能的差异主要集中在氧气适应方面。研究结果揭示了马苏大麻哈鱼肠道菌群结构在环境适应和遗传干预中的潜在机制,为图们江流域的马苏大麻哈鱼种群资源研究提供了科学依据,为育种策略的优化提供了新的视角。

Abstract:

To explore the structural and functional differences of gut microbiota in four different types of Oncorhynchus masou, this study using 16S rRNA sequencing technology to analyze the gut microbiota structures of landlocked, anadromous, landlocked triploid and landlocked breeding. We compared gut microbiota structures of landlocked, anadromous, landlocked triploid and landlocked breeding to explore similarities and differences in microbial diversity and functional characteristics caused by environmental adaptation (landlocked vs anadromous) and genetic intervention (landlocked vs landlocked triploid, landlocked vs landlocked breeding). The results indicate that the species composition of anadromous group changes significantly compared to landlocked group. Landlocked triploid group retains the microbiota characteristics of landlocked group, while landlocked breeding forms a unique microbiota pattern. Specifically, anadromous group's Shannon index significantly decreases, while landlocked breeding group's Ace, Chao1, Simpson and Shannon indices decrease significantly when compared to landlocked group. There are no significant differences in these indices between landlocked triploid group and landlocked group. β-diversity analysis further showes that, in comparison to landlocked group, anadromous and landlocked triploid groups display varying degrees of overlap, while landlocked breeding shows clear separation. BugBase analysis reveals that differences in microbiota functionality are primarily related to oxygen adaptation. The study uncovers potential mechanisms behind the structure of intestinal microbiota in Oncorhynchus masou regarding environmental adaptation and genetic intervention. It provides scientific basis for studying the resources of Oncorhynchus masou populations in the Tumen River Basin and offers new perspectives for optimizing breeding strategies.

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基本信息:

中图分类号:S917.4

引用信息:

[1]吴雪芹,张颖,金笑延,等.4种不同类型马苏大麻哈鱼的肠道菌群多样性及功能特征比较[J].经济动物学报().

基金信息:

吉林省科技发展计划项目(20240303073NC); 国家现代农业产业技术体系项目(CARS-46)

发布时间:

2025-05-23

出版时间:

2025-05-23

网络发布时间:

2025-05-23

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