2016 Fiscal Year Final Research Report
Effects of an active transposable element mPing on the rice epigenome and its application to plant breeding
| Project/Area Number |
25292006
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial 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 | Kindai University (2016)
Kyoto University (2013-2015) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
奥本 裕 京都大学, (連合)農学研究科(研究院), 教授 (90152438)
寺石 政義 京都大学, (連合)農学研究科(研究院), 講師 (80378819)
齊藤 大樹 京都大学, (連合)農学研究科(研究院), 助教 (10536238)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | 転移因子 / イネ / エピジェネティクス |
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| Outline of Final Research Achievements |
In this study, we found that (1) a rice active transposon mPing alters transcript structures post-transcriptionally via induction of alternative splicing that most likely depends on DNA methylation, (2) a Myb-like protein encoded by the autonomous element Ping can bind to mPing sequence independently of DNA methylation, and (3) early embryogenesis-specific expression of Ping may be regulated by a SNP in Ping-ORF1 or position- and dosage-effect of Ping. These indicate that mPing can amplify in the rice genome by escaping from the epigenetic regulation and consequently contributes to the enlargement of genetic variability of the host genome.
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| Free Research Field |
植物育種学
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