| Project/Area Number |
61560010
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Breeding science
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| Research Institution | NATIONAL INSTITUTE OF GENETICS |
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Principal Investigator |
SATO Yo-ichiro RESEARCH ASSOCIATE, NAT. INST. GENET., 総合遺伝研究系, 助手 (20145113)
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| Co-Investigator(Kenkyū-buntansha) |
MORISHIMA Hiroko (OKINO Hiroko) NAT. INST. GENET., 総合伝遺研究系, PROFESSOR (70000247)
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| Project Period (FY) |
1986 – 1988
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| Project Status |
Completed (Fiscal Year 1988)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1988: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1987: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1986: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | Rice / Photoperiodic sensitivity / Linkage / Isozyme / 連鎖 / 補足遺伝子 / イネ / 連鎖分析 / 連続戻し交配 / インド型-日本型 / 戻し交配 / インド型と日本型 |
|---|
| Research Abstract |
THE GENES FOR PHOTOPERIODIC SENSITIVITY WERE ISOLATED BY BACKCROSSES FROM STRAINS OF WILD AND CULTIVATED RICES.
1. THE LATE MATURITY OF WILD RICE AND INDICA OF CULTIVATED RICE WAS DUE TO STRONG PS.
2. PLURAL GENES FOR PS WERE EACH ISOLATED FROM THOSE STRAINS OF WILD AND CULTIVATED RICE. A WEAK PS OF JAPONICA STRAIN WAS CONTROLLED BY A SET OF COMPLEMENTARY GENES. A STRONG PS OF STRAINS OF INDICA AND WILD RICE WAS CONTROLLED BY BOTH A SET OF COMPLEMENTARY GENES AND AN ADDITIONAL PS GENE.
3. AT LEAST FOUR LOCI CONTROLLING PS WERE SUPPOSED JUDGING FROM ASSOCIATION BETWEEN HEADING BEHAVIOR AND ISOZYME VARIATION BY LINKAGE OF GENES FOR PS AND ISOZYMES.
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