| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Periodical plants such as some bamboos exhibit mass flowering and death in a fixed cycle of more than two years. Periodical plants are considered to have a biological clock counting three or more years because the plants repeat synchronous reproduction and death in a species-specific cycle of more than two years. We have examined the evolution of the biological clock in Strobilanthes flexicaulis (Acanthaceae) that flowers and dies simultaneously after six year from germination on Okinawa Island, Japan, by field researches and molecular phylogenetic analyses. Our study suggested that S. flexicaulis have evolved from a polycarpic perennial to a periodical mass flowering plant via a monocarpic perennial.
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