T
Toshio Yamamoto
Researcher at Okayama University
Publications - 229
Citations - 8526
Toshio Yamamoto is an academic researcher from Okayama University. The author has contributed to research in topics: Quantitative trait locus & Nonlinear system. The author has an hindex of 39, co-authored 222 publications receiving 7575 citations. Previous affiliations of Toshio Yamamoto include University of Tsukuba & Japan Tobacco.
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Journal ArticleDOI
Cytokinin Oxidase Regulates Rice Grain Production
Motoyuki Ashikari,Hitoshi Sakakibara,Shaoyang Lin,Toshio Yamamoto,Tomonori Takashi,Asuka Nishimura,Enrique R. Angeles,Qian Qian,Hidemi Kitano,Makoto Matsuoka +9 more
TL;DR: It is shown that a QTL that increases grain productivity in rice, Gn1a, is a gene for cytokinin oxidase/dehydrogenase (OsCKX2), an enzyme that degrades the phytohormone cytokinIn.
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A High-Density Rice Genetic Linkage Map with 2275 Markers Using a Single F2 Population
Yoshiaki Harushima,Masahiro Yano,Ayahiko Shomura,Mikiko Sato,Tomotoshi Shimano,Yoshihide Kuboki,Toshio Yamamoto,Shaoyang Lin,Baltazar A. Antonio,Arnold Parco,Hiromi Kajiya,Ning Huang,Kimiko Yamamoto,Yoshiaki Nagamura,Nori Kurata,Gurdev S. Khush,Takuji Sasaki +16 more
TL;DR: A 2275-marker genetic map of rice (Oryza sativa L.) covering 1521.6 cM in the Kosambi function has been constructed using 186 F2 plants from a single cross between the japonica variety Nipponbare and the indica variety Kasalath, and permitted us to characterize meiotic recombinations in the whole genome.
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Identification of Heading Date Quantitative Trait Locus Hd6 and Characterization of Its Epistatic Interactions With Hd2 in Rice Using Advanced Backcross Progeny
TL;DR: A backcrossed population derived from a cross between a japonica rice variety and an indica rice variety as the donor parent showed a long-range variation in days to heading and existence of an epistatic interaction between Hd2, which is one of the photoperiod sensitivity genes detected in a previous analysis, and Hd6.
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Fine mapping of quantitative trait loci Hd-1, Hd-2 and Hd-3, controlling heading date of rice, as single Mendelian factors
TL;DR: Results demonstrated that QTLs can be treated as Mendelian factors and were in good agreement with the regions estimated by QTL analysis of the initial F2 population, demonstrating the high reliability of QTL mapping using a high-density linkage map.
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Construction and evaluation of chromosome segment substitution lines carrying overlapping chromosome segments of indica rice cultivar 'Kasalath' in a genetic background of japonica elite cultivar 'Koshihikari'
Takeshi Ebitani,Yoshinobu Takeuchi,Yasunori Nonoue,Toshio Yamamoto,Kasumi Takeuchi,Masahiro Yano +5 more
TL;DR: The results clearly demonstrated that the use of CSSLs enabled to identify a larger number of QTLs than did a BC1F3 population derived from the same cross combination.