| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
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| Outline of Final Research Achievements |
African rice (Oryza glaberrima) shows a strong annual growth habit compared with common Asian rice O. sativa. Genetic analysis of this annual growth habit indicated that the major causal QTLs were located on chromosomes 6, 7 and 8. Large scale QTL mapping of the QTL on chromosome 8 (qRA8) implied that qRA8 would be the same gene as heading date gene Hd5. Characterization of the CSSLs revealed that the CSSL for qRA8 has a higher yield potential because seed set on late panicles (atypical high position tillers) was observed. Other annual CSSL showed different characteristics from those for qRA8. By focusing on the growth habit, a new approach for improving rice yield was discovered.
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