| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
The axillary bud develops in the axil of a leaf and has the potential to form a shoot or floral cluster. While pruning can improve the size and quality of fruits in tomato cultivation, removing the growth point often results in the activation of axillary bud growth, which increases the workload needed for branch management. A mutant that suppresses axillary bud growth (abs1) was identified from a comprehensive Micro-Tom EMS-mutant population. The abs1 mutant produced both vegetative shoots (stems and leaves) and reproductive shoots (flowers) without any noticeable abnormalities in floral organ development. The phenotype of significantly suppressed axillary buds observed in both the abs1 mutant and its F1 hybrid suggests that abs1 possesses a dominant-negative mutant allele. Suppression of axillary bud growth could potentially facilitate tomato cultivation, and a dominant-negative mutant allele can easily show its effects in hybrid breeding, thereby improving work efficiency.
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