中国土著的品种特异性肠道微生物群和肠型差异
Yongfei Wu1, Jing Ouyang1, Luping Wang1
1Key Laboratory of Natural Microbial Medicine Research of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, China.
Frontiers in microbiology
|August 1, 2025
概括
品种遗传学影响肠道微生物群的组成,揭示出不同的微生物群落和功能. 宿主基因塑造了肠道微生物群,影响了子的健康和消化.
科学领域:
- 动物基因组学 动物基因组学
- 微生物组研究 微生物组研究
- 鸟类生物学 鸟类生物学
背景情况:
- 肠道微生物群对于家的健康至关重要,影响消化和免疫力.
- 对于各种子品种的肠道微生物组成的了解有限,特别是在统一的农场环境中.
- 主体遗传学越来越被认为是影响肠道微生物组结构的因素.
研究的目的:
- 为了研究15种具有不同遗传背景的中国土著子品种的肠道微生物结构和多样性.
- 探索宿主遗传特征与肠道微生物群组成之间的关联.
- 为了在子肠道微生物群中识别潜在的肠型.
主要方法:
- 收集了260个便样本用于16S rRNA基因测序.
- 在202个血液样本上进行全基因组测序 (WGS),以分析宿主基因.
- 使用主坐标分析 (PCoA) 和詹森-香农距离 (JSD) 来分析微生物群体结构和识别肠型.
主要成果:
- 品种表现出品种特定的遗传特征.
- 肠道微生物群在属级别 (Firmicutes, Proteobacteria, Actinobacteria, Bacteroidetes) 上表现出相似性,但在更细致的分类层面上却呈现出不同的社区.
- 主体遗传与微生物组成有关;确定了两个不同的肠型集群 (层与双重用途子),在香农指数上不同,但不是丰富度.
结论:
- 宿主基因变异显著影响了家的肠道微生物群组成.
- 甲基因组功能预测表明,品种之间的代谢功能比物种组成更相似.
- 这项研究为宿主基因与子肠道微生物群多样性之间的相互作用提供了新的见解.
相关概念视频
01:23Anatomy of the Intestines
74.1K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
74.1K
02:27Background and Environment Affect Phenotype
6.7K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.7K