2012 Fiscal Year Final Research Report
Does gene duplication enhance the evolution of herbicide resistancein weeds?
| Project/Area Number |
22658006
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Crop science/Weed science
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| Research Institution | Kyoto University |
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Principal Investigator |
TOMINAGA Tohru 京都大学, 大学院・農学研究科, 教授 (10135551)
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| Co-Investigator(Renkei-kenkyūsha) |
WANG Guang-xi 名城大学, 農学部, 教授 (30314248)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 雑草科学 / 除草剤抵抗性 / 遺伝子重複 |
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| Research Abstract |
The relationship between gene duplication and evolution of herbicide resistance in weeds was investigated using sulfonylurea herbicide, one of acetolactate synthase inhibiting herbicides, resistant Monochoria vaginalis and M. korsakowii. These two paddy weeds are allotetraploid. Both M. vaginalis and M. korsakowii have multiple acetolactate synthase genes and single nucleotide substitution at least two acetolactate synthase genes was necessary to confer sulfonylurea herbicide resistance.
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