Analysis of mechanism of growth temperature and flowering signal in rice

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14622
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Science in genetics and breeding
• Research Institution: Osaka Prefecture University
• Principal Investigator: Yokoi Shuji 大阪府立大学, 生命環境科学研究科, 教授 (80346311)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: イネ / 気温 / 地上部、地下部

Outline of Final Research Achievements

It was suggested that the signal transduction pathway recognizing rice growth temperature and inducing flower formation controls transcription of Hd3a and RFT1 via Ehd1. Furthermore, it was shown that the expression level of the flowering related gene analyzed this time is changed from 2 days or 3 days after short day treatment. From these results, it was shown that the rice grows the flowering signal by recognizing the habitat environment in 3 days when the photoperiod and the growth environment of the air temperature change significantly.

Free Research Field

農学