| Project/Area Number |
19F19709
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Review Section |
Basic Section 38010:Plant nutrition and soil science-related
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| Research Institution | Japan International Research Center for Agricultural Sciences |
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Principal Investigator |
Wissuwa Matthias 国立研究開発法人国際農林水産業研究センター, 生産環境・畜産領域, 主任研究員 (90442722)
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| Co-Investigator(Kenkyū-buntansha) |
PRODHAN MD Asaduzzaman 国立研究開発法人国際農林水産業研究センター, 生産環境・畜産領域, 外国人特別研究員
|
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| Project Period (FY) |
2019-07-24 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2020: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2019: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | phosphorus efficiency / crossing population / root-vigor / QTL / chromosome 4 / P-stress / RNA sequencing |
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| Outline of Research at the Start |
I aim to identify the genetic basis of low-phosphorus (P) tolerance in the low-yielding cultivars that may be transgressed into the high-yielding varieties. My methodology includes assessing the root traits in a breeding population that derived from a cross between low-P tolerant and sensitive parents. The findings of my research project have the potential to identify the root traits in rice that confer low-P tolerance and the genes that drive these traits.
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| Outline of Annual Research Achievements |
During my JSPS Fellowship, I conducted research focusing on understanding phosphorus(P) efficiency mechanism in rice. My experimental material included two rice breeding parents and their crossing population contrasting in root-vigor related traits and P efficiency in low P soils. I carried out quantitative trait loci (QTL) analysis to determine the underlying genetic basis of the P-efficient root traits. My analysis identified a QTL on chromosome 4 potentially contributing to elongating root length in low P conditions. I also followed up how these contrasting P efficient rice genotypes responded to when P availability was experimentally reduced. My results revealed that the high P-efficient genotype rapidly responded to low P availability by expressing the P-stress related genes.
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| Research Progress Status |
令和2年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和2年度が最終年度であるため、記入しない。
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