RIKEN ECL Research Team / RIKEN ECL Research Unit Reproductive System RIKEN ECL Research Team

RIKEN ECL Team Leader: Reina Komiya (Ph.D.)

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Research Summary

We need to increase crop productivity and keep the yields stable under harsh environments, including global warming. Our research has focused on the reproductive roles of numerous NON-coding RNAs, which don’t encode protein, in crop sciences. This research aim is to elucidate the reproductive non-coding RNA system in plants and the importance of non-coding genomic regions that are ubiquitously present in higher organisms. As a final goal, we intend to develop the RNA regulation devices via functional RNAs that are respectively adapted under various environments.

Main Research Fields

Biology

Related Research Fields

Agricultural Sciences
Informatics
Interdisciplinary Science & Engineering
Biological Sciences
Basic Biology
Plant molecular biology/Plant physiology

Keywords

Crop Science
Plant Reproduction
RNA Biology
Non-coding RNA・Non-coding Genomic Region
Mobile Signal

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

1. *Tamotsu, H., Koizumi, K., Briones, A. and Komiya, R.:
"Spatial distribution of three ARGONAUTEs regulates the anther phasiRNA pathway"
Nature Communications 14:3333 (2023).
2. *Araki, S., Tamotsu, H. and Komiya, R.:
"3D-multiple immunoimaging using whole male organs in rice"
Scientific Reports 12:15426 (2022)
3. *Koizumi, K. and Komiya, R.:
"3D imaging and in situ hybridization for uncovering the functions of microRNA in rice anther"
Methods in Molecular Biology 2509, 93-104 (2022)
4. *Komiya, R.:
"Spatiotemporal regulation and roles of reproductive phasiRNAs in plants"
Genes & Genetic Systems. 96, 1-7 (2021)
5. *Araki, S., Le, TN., Koizumi, K., Briones, A., Nonomura, K., Endo, M., Inoue, H., Saze, H. and Komiya, R.:
"miR2118-dependent U-rich phasiRNA production in rice anther wall development"
Nature Communications 11, 3115 (2020)
6. *Komiya, R.:
"Biogenesis of diverse plant phasiRNAs involves an miRNA-trigger and Dicer-processing"
Journal of Plant Research. 130, 17-23 (2017)
7. *Komiya, R., Ohyanagi, H., Niihama, M., Watanabe, T., Nakano, M., Kurata, N. and Nonomura, K. I.:
"Rice germline-specific Argonaute MEL1 protein binds to phasiRNAs generated from more than 700 lincRNAs"
The Plant Journal. 78, 385-397 (2014)
8. *Komiya, R., Nonomura, K.I.:
"Isolation and bioinformatic analyses of small RNAs interacting with germ-cell specific Argonaute in rice."
Methods in Molecular Biology. 1093, 235-245 (2014)
9. *Komiya, R., Yokoi, S. and Shimamoto, K.:
"A gene network for long-day flowering activates RFT1 encoding a mobile flowering signal in rice."
Development. 136, 3443-3450 (2009)
10. *Komiya, R., Ikegami, A., Tamaki, S., Yokoi, S. and Shimamoto, K.:
"Hd3a and RFT1 are essential for flowering in rice."
Development. 135, 767-774 (2008)

Lab Members

Principal investigator

Reina Komiya: RIKEN ECL Team Leader

Contact Information

1-7-22 Suehiro, Tsurumi, Yokohama,
Kanagawa 230-0045 Japan
Email: reina.komiya [at] riken.jp