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Endophytic bacterial community diversity in genetically related hybrid rice seeds

文献类型： 外文期刊

作者： Wang, Zhishan 1 ; Li, Ni 2 ; Wang, Weiping 2 ; Zhu, Yongqiang 3 ; Liu, Yang 1 ;

作者机构： 1.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China

2.Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Peoples R China

3.Chinese Natl Human Genome Ctr Shanghai CHGC, Shanghai MOST Key Lab Hlth & Dis Genom, Shanghai 201203, Peoples R China

4.Shanghai Inst Biomed & Pharmaceut Technol, Shanghai 201203, Peoples R China

关键词： Hybrid rice; High-throughput sequencing; Endophytic bacteria; Genotype; Genetic correlation; Rice blast resistance

期刊名称：APPLIED MICROBIOLOGY AND BIOTECHNOLOGY （ 影响因子：5.0； 五年影响因子：5.2 ）

ISSN： 0175-7598

年卷期： 2023 年 107 卷 22 期

页码：

收录情况： SCI

摘要： \The Food and Agriculture Organization of the United Nations ( FAO) has identified hybrid rice as ideal for addressing food scarcity in poor nations. A comprehensive investigation of the endophytic bacteria in hybrid rice seeds is essential from a microecological perspective to illuminate the mechanisms underlying its high yield, high quality, and multi-resistance. The endophytic bacterial diversity and community structures of 11 genetically correlated hybrid rice seeds with different rice blast resistance levels were studied using high-throughput sequencing (HTS) on the Illumina MiSeq platform to reveal their "core microbiota" and explore the effect of genotypes, genetic relationships, and resistance. Proteobacteria (78.15-99.15%) represented the most abundant group in the 11 hybrid rice cultivars, while Pantoea, Pseudomonas, and Microbacterium comprised the "core microbiota." Hybrid rice seeds with different genotypes, genetic correlations, and rice blast resistance displayed endophytic bacterial community structure and diversity variation. In addition, the network relationships between the rice seed endophytic bacteria of "the same female parent but different male parents" were more complex than those from "the same male parent but different female parents." Matrilineal inheritance may be the primary method of passing on endophytic bacteria in rice from generation to generation. The endophytic bacterial interaction network in rice blast-resistant hybrid rice seed varieties was more complicated than in susceptible varieties. In summary, this study demonstrated that the genotype, genetic relationship, and rice blast resistance were important factors affecting the community structures and diversity of endophytic bacteria in hybrid rice seeds, which was vital for revealing the interaction between endophytic bacteria and the host.

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