| Budget Amount *help |
¥44,850,000 (Direct Cost: ¥34,500,000、Indirect Cost: ¥10,350,000)
Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2012: ¥28,470,000 (Direct Cost: ¥21,900,000、Indirect Cost: ¥6,570,000)
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| Outline of Final Research Achievements |
Growth stage conversion is essential event for survival success of local populations of plant species as a sessile organism. This project aimed to elucidate mechanisms of flowering time determination for abiotic environmental factors, day length and vernalization, for Lotus japonicas (Fagaceae) and wild radish (Rhaphanus sativus: Brassicaceae). For Lotus japonicas, whole genome sequences of 131 wild lines were compared and candidate genes involved in flowering time determination. Among the 375 SNPs that were differentiated between the early- and rate flowering wild lines, 22 SNPs on gene were identified. EMBRYONIC FLOWER gene 2 (EMF2) were identified as the candidate gene. In wild radish, we found clear north-south differentiation along the Japanese islands. Comparative studies their growth pattern and gene expression (FT and FLC), southern populations can convert to reproductive stage without vernalization, whereas vernalization is essential for northern populations.
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