| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
In this study, we surveyed genetic variation for seed cesium (Cs) concentration in soybean core collections representing large genetic diversity. As a result of analyzing the core collections, we observed considerable variation in the seed Cs concentration. Although Cs is supposedly accumulated in plants via the potassium (K) transport system, there was no apparent relationship between Cs and K concentrations. We selected candidate accessions with high or low seed Cs accumulation on the basis of three years of seed Cs concentrations and confirmed phenotypic stability beyond planting year and field. These results suggest that genetic variation for seed Cs concentration is present in soybean germplasm and would be useful for breeding low Cs-accumulating varieties.
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