| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
Flower color is determined by the components of pigment and the shapes of the petal epidermal cells. The shape of petal epidermal cells influences the tone and texture of petals. Three types of petal epidermal cell-related transcription factor genes (TfMYBML1～3) were isolated from Torenia fournieri L., which were homologous with genes reported in Antirrhinum majus L. in a previous study. The localization of gene expression and gene function by production of transgenic torenias of these genes was analyzed. The results indicated that TfMYBML1 is a transcription factor which does not affect the shape of petal epidermal cell, and TfMYBML2 and TfMYBML3 are transcription factors which partially affect the shape of the epidermal cell of the petal lips. Most importantly, TfMYBML3 was found to mainly regulate the shape of epidermal cell of the distinctive yellow blotch existing at the abaxial petal of torenia. TfMYBML1 and TfMYBML2 can be ruled out as main factors.
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