Analysis of dosage compensation in rice autopolyploids

• Project/Area Number: 24658003
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Breeding science
• Research Institution: The University of Tokyo
• Principal Investigator: ITOH Jun-ichi 東京大学, 農学生命科学研究科, 准教授 (30345186)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 倍数体 / 発生・分化 / 植物 / イネ / 育種 / 遺伝学

Research Abstract

Autopolyploids series (diploid, triploid and tetraploid) in rice were artificially created by a colchicine treatment and a genetic crossing. Comparisons between diploid and tetraploid plants revealed that the effect of genome doubling on the rice morphology depends on the developmental stage and traits. It was also suggested the cell size and expression level of some epigenetic related genes in the tetraploids were increased.

Research Products

• [Journal Article] Organ fusion and defective shoot development in oni3 mutants of rice (2014)
  • Author(s): Akiba T, Hibara K, Kimura F, Tsuda K, Shibata K, Ishibashi M, Moriya C, Nakagawa K, Kurata N, Itoh J-I, Ito Y
  • Journal Title: Plant Cell Physiol Volume: 55 Issue: 1 Pages: 42-51
  • DOI: 10.1093/pcp/pct154
  • NAID: 40019968717
  • Peer Reviewed
• [Journal Article] Rice SLENDER LEAF 1 gene encodes cellulose synthase-like D4 and is specifically expressed in M-phase cells to regulate cell proliferation. (2013)
  • Author(s): Yoshikawa T, Eiguchi M, Hibara KI, Ito JI, Nagato Y.
  • Journal Title: J Exp Bot. Volume: 64 Issue: 7 Pages: 2049-2061
  • DOI: 10.1093/jxb/ert060
  • Peer Reviewed
• [Journal Article] RiceFREND: a platform for retrieving coexpressed gene networks in rice. (2013)
  • Author(s): Sato Y, Namiki N, Takehisa H, Kamatsuki K, Minami H, Ikawa H, Ohyanagi H, Sugimoto K, Itoh J, Antonio BA, Nagamura Y.
  • Journal Title: Nucleic Acids Res. Volume: 41 Issue: D1 Pages: 1214-122
  • DOI: 10.1093/nar/gks1122
  • Peer Reviewed
• [Journal Article] Change of shoot architecture during juvenile-to-adult phase transition in soybean. (2013)
  • Author(s): Yoshikawa T, Ozawa S, Sentoku N, Itoh JI, Nagato Y, Yokoi S.
  • Journal Title: Planta Volume: 238 Issue: 1 Pages: 229-237
  • DOI: 10.1007/s00425-013-1895-z
  • Peer Reviewed
• [Journal Article] ABNORMAL SHOOT IN YOUTH, a homolog of molybdate transporter gene, regulates early shoot development in rice. (2013)
  • Author(s): Hibara, K-I., Hosoki, W., Hakoyama, T., Ohmori, Y., Fujiwara, T., Itoh,J-I. and Nagato, Y.
  • Journal Title: Amer. J. Plant Sci. Volume: 4 Pages: 1-9
  • Peer Reviewed
• [Journal Article] Rice DECUSSATE controls phyllotaxy by affecting the cytokinin signaling pathway (2012)
  • Author(s): Itoh, JI., Hibara, K., Kojima, M., Sakakibara, H. , Y. Nagato.
  • Journal Title: Plant J. Volume: 72 Issue: 6 Pages: 869-881
  • DOI: 10.1111/j.1365-313x.2012.05123.x
  • Peer Reviewed
• [Journal Article] Role of transposon-derived small RNAs in the interplay between genomes and parasitic DNA in rice (2012)
  • Author(s): Misuzu Nosaka, Jun-ichi Itoh, Yasuo Nagato, Akemi Ono, Aiko Ishiwata, Yutaka Sato
  • Journal Title: PLoS Genetics Volume: 8(9) Issue: 9 Pages: e1002953-e1002953
  • DOI: 10.1371/journal.pgen.1002953
  • Peer Reviewed
• [Journal Article] Rice PLASTOCHRON genes regulate leaf maturation downstream of the gibberellin signal transduction pathway (2012)
  • Author(s): Mimura M, Nagato Y, Itoh J.
  • Journal Title: Planta Volume: 235 Issue: 5 Pages: 1081-1089
  • DOI: 10.1007/s00425-012-1639-5
  • Peer Reviewed
• [Presentation] イネの葉間期制御に関わる遺伝子の遺伝的相互作用 (2014)
  • Author(s): 三村真生、長戸康郎、伊藤純一
  • Organizer: 日本育種学会第125回講演会
  • Place of Presentation: 東北大学
• [Presentation] 葉序の異常を示すイネの突然変異体 (2014)
  • Author(s): 伊藤純一
  • Organizer: 第55回日本植物生理学会年会
  • Place of Presentation: 富山大学
  • Invited
• [Presentation] Rice PLASTOCHRON genes regulate organ size and act downstream of the gibberellin signaling pathway (2013)
  • Author(s): M.Mimura, Y. Nagato, J. Itoh.
  • Organizer: 7th International Rice Genetics Symposium
  • Place of Presentation: Manila, Philippines
• [Presentation] イネの葉間期制御におけるPLASTOCHRON遺伝子とOsSPL遺伝子との関係 (2013)
  • Author(s): 三村真生、Luo Le、経塚淳子、長戸康郎、伊藤純一
  • Organizer: 日本育種学会第123回講演会
  • Place of Presentation: 東京農業大学
• [Presentation] Rice PLASTOCHRON genes regulate organ size and act downstream of the gibberellin signaling pathway. (2013)
  • Author(s): M.Mimura, Y. Nagato, J. Itoh
  • Organizer: 7th International Rice Genetics Symposium
  • Place of Presentation: Manila, Philippines,