2020 Fiscal Year Annual Research Report
Dissecting the genetic basis of root vigor : applications for improving rice for a changing world
| Project/Area Number |
19F19709
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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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| Keywords | phosphorus efficiency / crossing population / root-vigor / QTL / chromosome 4 / P-stress |
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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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