2023 Fiscal Year Final Research Report
Exploring mechanisms of plant-soil microbiome interactions by metagenome and QTL analysis
| Project/Area Number |
21K14763
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 38020:Applied microbiology-related
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| Research Institution | Tohoku University |
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Principal Investigator |
Bamba Masaru 東北大学, 生命科学研究科, 助教 (70898288)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 植物-微生物相互作用 / QTL解析 / 16S アンプリコンシーケンス |
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| Outline of Final Research Achievements |
Using the model legume plant Lotus japonicus, we investigated the effects of genetic differences within a plant species on root microbiome and examined which genetic differentiations were associated with these microbes. Although our study found that the impact of genetic differentiation on root microbiome was small, Rhizobiales and Burkholderiales were significantly associated with differences at a small number of genetic loci. This suggests that while most of the microbes constituting the root microbiome do not depend on genetic differences within the plant species, some microbes, particularly those known to have close relationships with plants, are highly sensitive to the plant's genetic differences.
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| Free Research Field |
植物-微生物相互作用，進化生物学
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| Academic Significance and Societal Importance of the Research Achievements |
持続可能な農業を推進する上で，植物と土壌微生物の関係を理解することは不可欠である。本研究より，従来植物の生育に密接に関連していることが報告されているRhizobialesやBurkholderialesの微生物が，植物の少数の遺伝子座に依存していることが明らかとなった。これらの結果は，植物にとって有益な植物-微生物相互作用を司る遺伝基盤を遺伝学手法を用いて明らかにすることが可能であることを示唆しており，また将来的には育種的に有益な相互作用を選抜することも可能になると考えられる。
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