在基因相关的杂交大米种子中的内菌群体多样性
Zhishan Wang1, Ni Li2, Weiping Wang3
1School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
Applied microbiology and biotechnology
|September 13, 2023
概括
杂交大米种子可以容纳核心内性细菌,如Pantoea,Pseudomonas和Microbacterium. 基因型,遗传关系和米爆耐药性显著影响细菌多样性和社区结构,对于理解宿主-微生物相互作用至关重要.
科学领域:
- 农业微生物学 农业微生物学
- 植物与微生物的相互作用
- 遗传学 遗传学 是一个
背景情况:
- 混合米对全球粮食安全至关重要,特别是在发展中国家.
- 了解杂交大米种子的微生态,特别是内菌,是其高产量,质量和耐药性的关键.
- 内生菌在植物健康和耐压力方面发挥着至关重要的作用.
研究的目的:
- 为了研究杂交大米种子中的内菌的多样性和社区结构.
- 为了确定混合种子的核心微生物群.
- 探索基因型,遗传关系和米爆耐药性对内生菌细菌群落的影响.
主要方法:
- 在Illumina MiSeq平台上的高通量测序 (HTS) 用于分析内菌.
- 研究了11种基因相关的杂交大米种子,具有不同水平的抗大米爆破能力.
- 进行生物信息分析以确定细菌多样性,社区结构和网络关系.
主要成果:
- 蛋白质细菌是最丰富的类型 (78.15-99.15%).
- 潘托亚,伪人菌和微细菌组成了核心微生物群.
- 细菌群体的结构和多样性根据杂交大米的基因型,遗传关系和抗大米爆破性而有显著的变化.
- 母亲系遗传似乎是大米内菌传播的主要方式.
- 在抗爆米品种和来自同一个雌性母体的杂交品种中观察到更复杂的内源性细菌相互作用网络.
结论:
- 基因型,遗传关系和抗水爆耐药性是塑造混合水种子内菌群体的关键因素.
- 已确定的核心微生物群 (Pantoea,Pseudomonas,Microbacterium) 对杂交大米非常重要.
- 这项研究提供了对宿主内菌相互作用的见解,这对于改善混合水种植和粮食安全至关重要.
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