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Registros recuperados: 6
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Gene silencing of barley P23k involved in secondary wall formation causes abnormal tiller formation and intercalary elongation OAK
Oikawa, Ai; Nagai, Kazuya; Kato, Kiyoaki; Kidou, Shin-ichiro; 加藤, 清明.
P23k is a monocot-unique protein that is highly expressed in barley. Our previous loss-of-function studies in barley leaves indicated that P23k, localized to tissues where cell wall polysaccharides accumulate, might contribute to secondary wall formation in the leaf. However, the P23k loss-of-function analysis was limited to the leaf, which is a vegetative organ. Considering the involvement of P23k in secondary wall formation, a dramatically altered phenotype is expected in the stem of P23k gene-silenced barley, where marked secondary wall deposition occurs during the reproductive growth stage. To test this hypothesis, barley striped mosaic virus-based virus-induced gene silencing of P23k was performed. Abnormal tiller formation and arrested intercalary...
Palavras-chave: Hordeum vulgare P23k virus-induced gene silencing secondary wall formation (1 3; 1 4)-β-D-glucan tiller intercalary elongation.
Ano: 2009 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2692
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Increased grain dormancy in white-grained wheat by introgression of preharvest sprouting tolerance QTLs OAK
Kottearachchi, NS; Uchino, N.; Kato, Kiyoaki; Miura, Hideho; 加藤, 清明; 三浦, 秀穂.
White-grained wheat cultivars have long been recognized to be less resistant to preharvest sprouting (PHS) than the red-grained ones. Previously two QTLs for grain dormancy, QPhs.ocs-3A.1 (QPhs-3AS) and QPhs.ocs-4A.1 (QPhs-4AL) were identified in a highly dormant Japanese red wheat, Zenkoujikomugi (Zen). Aiming at improvement of PHS tolerance in white-grained wheat, the introgression effect of these two QTLs in a white-grained population consisting of 40 recombinant inbred lines (RILs) developed from a cross between Zen and white-grained Spica was examined here. Random 20 RILs with red grains were also developed from the same cross and used as a control population. The RILs were grown in the field and in the glasshouse to evaluate the grain dormancy by...
Palavras-chave: Grain dormancy; Molecular marker; QTL; Triticum aestivum; White-grained wheat.
Ano: 2006 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/714
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The rice RCN1/OsABCG5 mutation is associated with root development in response to nutrient shortage OAK
Ureshi, An-na; Matuda, Shuichi; Ohashi, Emiko; Onishi, Kazumitsu; Takamure, Itsuro; Kato, Kiyoaki; 大西, 一光; 加藤, 清明.
Plants constantly sense changes in their environment. When nutrient elements are scarce, plants often allocate a greater proportion of their biomass to the root system. In the present study, we characterized the early root development of rice reduced culm number (rcn) mutants under standard growth conditions. Short lateral root length was consistent in five rcn mutants, and the remaining root traits varied between the rcn mutants. Subsequently, we characterized the effects of rcn1 mutation in response to nutrient shortage. Root development, involving the elongation of seminal, crown, and lateral roots and branching of the lateral roots, was promoted in wild type in response to nutrient shortage. However, in rcn1 mutants, crown root elongation was constant...
Palavras-chave: Nutrient shortage; RCN1/OsABCG5; Reduced culm number; Rice; Root architecture.
Ano: 2012 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3823
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コムギの染色体欠失系統を用いた5A染色体長腕の量的遺伝子座分析 OAK
秋山, 雅世; 三浦, 秀穂; 加藤, 清明; 沢田, 壮兵; AKIYAMA, Masayo; MIURA, Hideho; Kato, Kiyoaki; SAWADA, Souhei.
Palavras-chave: 染色体欠失系統; 量的遺伝子座; RFLP; コムギ; Chromosome deletion stock; QTL; RELP; Wheat.
Ano: 1998 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1293
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コムギ穂発芽関連遺伝子群の解析による選抜技術の開発 OAK
内野, 紀彦; 加藤, 清明; 三浦, 秀穂; Uchino, Norihiko; Kato, Kiyoaki.
Ano: 2003 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2152
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根粒非着生ダイズにおける葉中窒素含量と子実収量の関係 OAK
Manalo, David D; Sawada, Souhei; Miura, Hideho; Kato, Kiyoaki.
Palavras-chave: 葉中窒素; 窒素施肥; 根粒非着生; 子実収量; ダイズ.
Ano: 2000 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1261
Registros recuperados: 6
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