Group of Genome Regulation

Group of Genome Regulation

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Faculty staff

Prof. Dr. Masahiko MAEKAWA
E-mail: mmaekawaATrib.okayama-u.ac.jp
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Assoc. Prof. Dr. Bunichi EZAKI
E-mail: bezakiATokayama-u.ac.jp
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Assoc.Prof. Dr. Manabu SUGIMOTO
E-mail: manabusATokayama-u.ac.jp
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Assist. Prof. Dr. Kazuhide RIKIISHI
E-mail: rikiATokayama-u.ac.jp
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Assist. Prof. Dr. Shigeko UTSUGI
E-mail: utsugATokayama-u.ac.jp
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Assoc. Prof. Dr. Shoko UEKI
E-mail:shokouekiATokayama-u.ac.jp
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Lectures: Model Plant Genetics and Breeding, Physiology of Environmental Responses, Plant Genome Regulation, Molecular Biology in Environmental Adaptation, Plant Cellular Biochemistry, Plant Cytomolecular Biochemistry, Advanced Biomacromolecular Science
Keywords: Rice; Wheat; Transposon mutagenesis; Crop; Mineral stress


Summary of main research topics

Analysis of genetic and physiological regulation mechanisms for food production
Sustainable agriculture and securing a sufficient supply of food are very important subjects for people living harmoniously in natural environments in the 21st century. This group conducts analyses of genetic factors for greater production efficiency using endogenous transposon and gene introduction or genome rearrangement from wild species in rice. Important seed dormancy in wheat is analyzed genetically and physiologically. In addition, the isolation of genes for tolerance of metal stresses or oxidation stresses in wild plants and their expression analysis are conducted. Furthermore, plants are being developed that can grow in space and in inferior environments on Earth.
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Latest publications (for complete and most current publications visit group pages)

(1) Gichuhi, E., Himi, E., Takahashi, H. and Maekawa, M. Characterization and QTL analysis of Oryza longistaminata introgression line, pLIA-1, derived from a cross between Oryza longistaminata and Oryza sativa (Taichung 65) under non-fertilized conditions. Rice Research 4: 3: 174. DOI: 10.4172/2375-4338.1000174. (2016. 8.)
(2) Sugimoto, M., Oono, Y., Kawahara, Y., Gusev, O., Maekawa, M., Matsumoto, T., Levinskikh, M., Sychev, V., Novikova, N. and Grigoriev, A. Gene expression of rice seeds surviving 13- and 20-month exposure to space environment. Life Sciences in Space Research 11: 10-17. (2016. 10.)
(3) Ezaki, B., Higashi, A., Nanba, N. and Nishiuchi, T. An S-adenosyl methionine synthetase (SAMS) gene from Andropogon virginicus L. confers aluminum stress tolerance and facilitates epigenetic gene regulation in Arabidopsis thaliana. Frontiers in Plant Science 7: doi: 10.3389/fpls.2016.01627 (2016. 11.)
(4) Gichuhi, E., Himi, E., Takahashi, H., Zhu, S., Doi, K., Tsugane, K. and Maekawa, M. Identification of QTLs for yield-related traits in RILs derived from the cross between pLIA-1 carrying Oryza longistaminata chromosome segments and Norin 18 in rice. Breeding Science 66: 720-733. (2016. 12.)
(5) Gichuhi, E., Himi, E., Takahashi, H., Ahmed, N. and Maekawa, M. Preliminary QTL detection for improving Basmati rice in F2 population derived from the cross between Kernel Basmati and pLIA-1 carrying Oryza longistaminata chromosome. SABRAO Journal of Breeding and Genetics 48 (4): 402-415. (2016. 12.)
(6) Maruyama, F. and Ueki, S. Evolution and Phylogeny of large DNA viruses, Mimiviridae and Phycodnaviridae including newly characterized Heterosigma akashiwo virus. Frontiers in Microbiology doi: 10.3389/fmicb. 2016.01942 (2016. 11.)
(7) Higashi, A., Fujitani, Y., Nakayama, N., Tani, A. and Ueki, S. Selective growth promotion of bloom-forming raphidophyte Heterosigma akashiwo by a marine bacterial strain. Harmful Algae 60: 150-156. (2016. 11.)
(8) Ogura, Y., Hayashi, T. and Ueki, S. The complete genome sequence of Phycodnavirus, Heterosigma akashiwo virus strain 53. Genome Annoucements 4: e01279-16. (2016. 11.)
(9) Ogura, Y., Nakayama, N., Hayashi, T. and Ueki, S. Mitochondrial genome sequences of four strains of bloom-forming raphidophyceae, Heterosigma akashiwo. Genome Annoucements 4: e01288-16. (2016. 12.)