Is cytoplasmic male sterility explained by mitochondrial overactivation?
Project/Area Number |
25292001
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Science in genetics and breeding
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Research Institution | Hokkaido University |
Principal Investigator |
Kubo Tomohiko 北海道大学, (連合)農学研究科(研究院), 教授 (40261333)
|
Co-Investigator(Kenkyū-buntansha) |
TAGUCHI Kazunori 農業・食品産業技術総合研究機構, 北海道農業研究センター, 主任研究員 (80414754)
KURODA Yosuke 農業・食品産業技術総合研究機構, 北海道農業研究センター, 研究員 (40595071)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2013: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
|
Keywords | ミトコンドリア / 細胞質雄性不稔性 / 遺伝子発現 / 呼吸 |
Outline of Final Research Achievements |
Cytoplasmic male sterility (CMS) is a breeding character that makes hybrid seed production feasible. In the genetic model of CMS, male sterility expresses when the cytoplasm has male-sterility inducing factor while the nucleus has two recessive alleles of restorer-of-fertility gene (rf). The cytoplasmic factor is a mitochondrial gene that is specific to CMS mitochondrial genome. Such genes have been found from many plant species but the mechanism how CMS expresses is still obscure. The objective of this study is to clarify the mitochondrial function of CMS sugar beet. We found the followings: biochemical difference between male-fertile and CMS mitochondria; male-sterility induction by F0F1-ATPase alteration; and effect of novel Rf on the male-sterility inducing mitochondrial gene.
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Report
(4 results)
Research Products
(32 results)
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[Journal Article] Two male sterility-inducing cytoplasms of beet (Beta vulgaris) are genetically distinct but have closely related mitochondrial genomes: implication of a substoichiometric mitochondrial DNA molecule in their evolution2015
Author(s)
Onodera Y, Arakawa T, Yui-Kurino R, Yamamoto MP, Kitazaki K, Ebe S, Matsunaga M, Taguchi K, Kuroda Y, Yamashita S, Sakai T, Kinoshita T, Mikami T, Kubo T
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Journal Title
Euphytica
Volume: 206
Pages: 365-379
NAID
Related Report
Peer Reviewed / Acknowledgement Compliant
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