|Budget Amount *help
¥92,300,000 (Direct Cost: ¥71,000,000、Indirect Cost: ¥21,300,000)
Fiscal Year 2017: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2016: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2015: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2014: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2013: ¥21,840,000 (Direct Cost: ¥16,800,000、Indirect Cost: ¥5,040,000)
|Outline of Final Research Achievements
Rice inflorescence has a higher-order complex structures, consisting of main rachis, branches, and spikelets, and floral organs differentiate in the spikelet. These inflorescence parts are formed from distinct types of the meristems, such as inflorescence, branch, spikelet and flower meristems. The objective of this research project is to understand developmental logics that regulate the construction of inflorescences and flowers in relation to meristem function.
We found several new genes involved in inflorescence and flower development. Focusing on these new genes in addition to those already known as homologs, we revealed the developmental mechanisms as follows: ASP1 encoding transcriptional corepressor plays a critical role in stem cell homeostasis and inflorescence development; there YABBY genes, TOB1/2/3, regulate non-autonomously spikelet and branch development; TAB1 encoding WOX transcription factor is essential for axillary meristem development.