Validation of hypothesis that mitochondria play as vernalizaiton sensor
| Project/Area Number |
15K14628
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Science in genetics and breeding
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| Research Institution | Fukui Prefectural University |
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Principal Investigator |
MURAI Koji 福井県立大学, 生物資源学部, 教授 (70261097)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 春化 / ミトコンドリア / 花成 / コムギ / 細胞質置換系統 |
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| Outline of Final Research Achievements |
Vernalization in which an extended period of low temperature in winter results in the flowering induction during the following spring. It is an important adaptive trait for long-day plants which are germinated at autumn. In wheat and barley, a flowering promoter MADS-box gene VERNARIZATION 1 (VRN1) is epigenetically up-regulated by vernalization, and plays a central role in flowering. Cytoplasmic substitution (alloplasmic) lines of wheat (Triticum aestivum) that carry the cytoplasm (mitochondrial genome) of the wild relative Aegilops geniculata show delayed flowering-time compared with the normal cytoplasm (euplasmic) lines. In this study, using the alloplasmic line, I indicated the possibility that mitochondrial genome contains the vernalization sensor gene which affects the epigenetic state of nuclear VRN1 gene.
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Report
(4 results)
Research Products
(14 results)
