1997 Fiscal Year Final Research Report Summary
EVALUATION AND DEVELOPMENT OF RICE BREEDING METHOD USING DNA MARKERS.
| Project/Area Number |
07556133
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Breeding science
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
YOSHIMURA Atsushi KYUSHU UNIVERSITY,FACULTY OF AGRICULTURE,PROFESSOR, 農学部, 教授 (00182816)
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| Co-Investigator(Kenkyū-buntansha) |
OGATA Takefumi FUKUOKA PREFECTURAL AGRICULTURAL EXPERIMENT STATION,RESEARCHER, 農産研究所, 研究員
FUKUTA Yoshimichi HOKURIKU NATIONAL AGRICULTURAL EXPERIMENT STATION,RESEARCHER, 作物開発部, 研究員
YANO Masahiro NATIONAL INSTITUTE OF AGROBIOLOGICAL RESOURCES,RESEARCHER, 分子遺伝部, 研究員
NAGAMINE Tsukasa NATIONAL INSTITUTE OF AGROBIOLOGICAL RESOURCES,RESEARCHER, 遺伝資源第二部, 研究員
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| Project Period (FY) |
1995 – 1997
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| Keywords | Rice / QTL analysis / recombinant inbred lines (RI lines) / RFLP marker / breeding method / rapid advenced generation / RAPD marker / population |
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| Research Abstract |
Using recombinant inbred lines (RI lines), F2 population and backcross population, QTL analysis for several traits, such as heading date, culm length, panicle length and etc., was performed. Many putative QTLs for some traits were detected. In QTL analysis specially for heading date, repeated and detailed examination was done. In addition, the linkage and substitution mapping of QTLs for heading date were done using the derivatives of the chromosome segment substitution and near-isogenic lines and gave the clear information about the QTLs.
The rapid advanced generation at Okinawa in rice cross breeding was evaluated through monitoring the RFLP gene frequency in F3, F4 and F5 generations from the cross of Asominori and IR24. Section pressure near the region of semidwarf gene (sd1) was apparently observed.
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