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A new source of cytoplasmic male sterility found in wild beet and its relationship to other CMS types

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タイトル: A new source of cytoplasmic male sterility found in wild beet and its relationship to other CMS types
著者: Kawanishi, Yuki 著作を一覧する
Shinada, Hiroshi 著作を一覧する
Matsunaga, Muneyuki 著作を一覧する
Masaki, Yusuke 著作を一覧する
Mikami, Tetsuo 著作を一覧する
Kubo, Tomohiko 著作を一覧する
キーワード: sugar beet
cytoplasmic male sterility
plant mitochondria
mitochondrial genome
発行日: 2010年 4月
出版者: NRC Research Press
誌名: Genome
巻: 53
号: 4
開始ページ: 251
終了ページ: 256
出版社 DOI: 10.1139/G10-003
抄録: We found a number of male sterile plants in a wild beet (Beta vulgaris L. ssp. maritima) accession line FR4-31. The inheritance study of the male sterility indicated the trait to be of the cytoplasmic type. The mitochondrial genome of FR4-31 proved to lack both of the two male-sterility-associated genes, preSatp6 and orf129, which are characteristic of the Owen CMS and I-12CMS(3) cytoplasms of beets, respectively. Instead, the truncated cox2 gene, involved in G CMS originating from wild beets, was present in the FR4-31 mitochondrial genome. In Southern hybridization using four mitochondrial gene probes, the FR4-31 cytoplasm showed the patterns similar to those typical of the G cytoplasm. It is thus likely that the FR4-31 cytoplasm has a different CMS mechanism from both Owen CMS and I-12CMS(3), and that the FR4-31 and G cytoplasms resemble each other closely. A restriction map of the FR4-31 mitochondrial DNA was generated and aligned with those published for the Owen and normal fertile cytoplasms. The FR4-31 mitochondrial genome was revealed to differ extensively in arrangement from the Owen and normal genomes, and the male-sterile Owen and FR4-31 genomes seem to be derived independently from an ancestral genome.
Relation (URI):
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 久保 友彦


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