March 16, 2020
RIKEN CSRS and the Cluster for Pioneering Research have uncovered a mechanism through which changes in the environment affect gene translation.
After seeds germinate in the soil, plants begin to grow (morphogenesis) when they are hit by light. However, the process—altered gene expression after photoreception—is not well understood.In this study, the research team determined all the open reading frames (ORFs) encoded by Arabidopsis messenger RNA (mRNA). Then, by shining blue light on the plants and measuring translational efficiency, they were able to find a regulatory mechanism. Although gene expression is generally thought to be controlled by the amount of mRNA in a plant, the research team found that it is also affected by translational efficiency.
These findings can be applied to technologies used to control crop gene expression in varying environments.
Plant and Cell Physiology doi:10.1093/pcp/pcz219
Y. Kurihara, Y. Makita, H. Shimohira, T. Fujita, S. Iwasaki, M. Matsui,
"Translational landscape of protein-coding and non-protein-coding RNAs upon light exposure in Arabidopsis".
Yukio Kurihara; Research Scientist
Yuko Makita; Research Scientist
Minami Matsui; Group Director
Synthetic Genomics Research Group