| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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| Outline of Final Research Achievements |
Breeding use of agriculturally important genes in crop relatives is essential, but wild relative species is not necessarily utilized effectively. Grass clump dwarfism (Gcd) has been frequently observed in interspecific hybrids of wheat relatives. Gcd appears only under normal temperature conditions, whereas hybrid necrosis develops under the low temperature conditions in many hybrids between cultivated tetraploid wheat and Aegilops tauschii. On the other hand, no difference of the Gcd development is observed among the growth temperature conditions in the hybrids between cultivated tetraploid wheat and Aegilops umbellulata. In this study, molecular mechanisms for the temperature-dependent plasticity to develop Gcd were predicted based on the comparative transcriptome analyses. Isolation of the two hybrid abnormality genes Net2 and Gcd1 for Gcd was progressed, and two candidates for Net2 were identified.
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