| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
The albino lemma (alm1) mutant in barley is characterized by chlorophyll-less hulls except for small green areas at the tips. By means of positional cloning and candidate gene sequencing, we revealed the causal gene of ALM1. Photosynthesis measurements using an isogenic pair of wild type and alm1 mutant revealed that leaf photosynthesis did not differ, but that spike photosynthesis was reduced 34% in alm1 mutant. Grain weight of alm1 mutant was reduced 10-21% compared to wild type. These results suggest significant contribution of hull photosynthesis to grain filling in barley.
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