2016 Fiscal Year Final Research Report
Map-based cloning and function analysis of a wheat vernalization gene Vrn-D4
| Project/Area Number |
26450005
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Science in genetics and breeding
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| Research Institution | Okayama University |
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Principal Investigator |
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| Research Collaborator |
KATO Kenji
DUBCOVSKY Jorge
KIPPES Nestor
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | コムギ / 春播性遺伝子 / Vrn-D4 / クローニング / Vrn-A1 / 起源 |
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| Outline of Final Research Achievements |
In the previous study, a wheat vernalization gene Vrn-D4 was mapped in a centromeric region, 0.09cM interval, of chromosome 5D. In this study, Vrn-D4 was found to be located on the short arm. This new information narrowed further down the Vrn-D4 region. In another analysis, the line with a spring allele Vrn-D4 was found to carry two copies of Vrn-A1, one of which was located on the short arm of chromosome 5D and had specific polymorphisms. Other lines with a spring allele Vrn-D4 also had this Vrn-A1 copy, which confirmed that the causal gene of Vrn-D4 is the Vrn-A1 copy on the short arm of chromosome 5D. Moreover, origin of Vrn-D4 was analyzed.
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| Free Research Field |
植物遺伝育種学
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