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| Registros recuperados: 30 | |
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| Mori, Masahiko; Onishi, Kazumitsu; Tokizono, Yoshiro; Shinada, Hiroshi; Yoshimura, Toru; Numao, Yoshinori; Miura, Hideho; Sato, Takashi; 大西, 一光; 三浦, 秀穂. |
| Cold stress at the booting stage in rice induces spikelet sterility because of aberrant microspore development, which often seriously damages seed production. Some breeding lines with high cold tolerance were developed by using tropical japonica variety Silewah as a donor of cold tolerance; however, the genetic factors that confer cold tolerance of this variety have not been comprehensively analyzed. In this study, phenotypic and molecular characterization of novel cold-tolerant strains derived from crosses with Silewah was performed to identify quantitative trait loci (QTLs) responsible for cold tolerance. Molecular marker analysis revealed that 2 cold-tolerant strains carried chromosomal segments of Silewah at the same genomic regions on chromosomes 3, 4... |
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Palavras-chave: Oryza sativa; Cold tolerance; Booting stage; QTL; Phenotypic selection; Marker-assisted selection; Exotic germplasm. |
| Ano: 2011 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3040 |
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| 坂井, 祐希; 来嶋, 正朋; 足利, 奈奈; 神野, 裕信; 三浦, 秀穂; 大西, 一光. |
| コムギの子実タンパク質含有率は、小麦粉の品質や物性に大きく関わる重要な形質である。本研究では、北海道の春播きコムギ品種「はるきらり」を反復親、スペルトコムギ系統（KU-1025）を一回親として育成した戻し交雑自殖系統（Backcross Inbred Line : BILs）BC1F5 世代32 系統を用いて、子実タンパク質含有率および子実窒素吸収量について評価を行った。北見および帯広で栽培試験を行った結果、「KU-1025」の子実タンパク質含有率は、両試験区で「はるきらり」より高い値を示した。BILs における子実タンパク質含有率と子実収量の間には両試験区ともに有意 な負の相関が認められ、子実タンパク質含有率・子実収量ともに「はるきらり」を上回る系統が複数認められた。子実タンパク質含有率と同様に子実窒素吸収量についても「KU-1025」は「はるきらり」より高い値を示し、BILs の中には子実窒素吸収量および子実収量ともに「はるきらり」 を上回る系統が複数認められた。以上の結果から、「KU-1025」は、子実タンパク質含有率および子実窒素吸収量に優れており、高タンパク質含有率かつ高収量を示すパンコムギ品種の作出に貢献できる変異を有すると考えられた。 |
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Palavras-chave: スペルトコムギ; 子実タンパク質含有率 ; 子実窒素吸収量 ; 戻し交雑自殖系統; 春播きコムギ. |
| Ano: 2016 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4382 |
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| 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... |
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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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| Tanaka, Yuko; Miura, Hideho; Fukushima, Michihiro; Ito, Miwako; Nishio, Zenta; Kim, Sun-Ju; Hashimoto, Naoto; Noda, Takahiro; Takigawa, Shigenobu; Matsuura-Endo, Chie; Yamauchi, Hiroaki; 三浦, 秀穂; 福島, 道広. |
| This paper reports the results of a study of the relationship among the amylose content of flours and the physical properties, such as the texture, of yellow alkaline noodles (YAN) prepared from these flours. For this purpose, we used eight types of near-isogenic flours with different Wx protein deficiency under the Chinese Spring genetic background. With the use of the near-isogenic lines, it was possible to achieve similar flour characteristics, with the exception of the amylose content of starch in YAN, and to analyze clearly the effects of the amylose content on the physical properties of YAN. The results of this study indicated that the breaking force and breaking force/breaking deformation of YAN made from the eight lines basically decreased and that... |
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Palavras-chave: Yellow alkaline noodles; Physical properties; Amylose content; Sensory evaluation. |
| Ano: 2006 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/715 |
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| 長, 学; 柳沢, 朗; 菅原, 章人; 加藤, 清明; 三浦, 秀穂; Osa, M; Yanagisawa, A; Sugawara, A; Kato, K; Miura, H. |
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Palavras-chave: Triticum aestivum L.; Wxタンパク質; アミロース含量; 粗蛋白質含量; 糊化特性; 遺伝子型×環境の相互作用; Wx protein; Amylose content; Protein content; Starch-pasting property; Genotype x environment interaction. |
| Ano: 2002 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/117 |
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| Registros recuperados: 30 | |
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