| Budget Amount *help |
¥46,020,000 (Direct Cost: ¥35,400,000、Indirect Cost: ¥10,620,000)
Fiscal Year 2017: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2016: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2015: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2014: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2013: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Outline of Final Research Achievements |
In this research project, using recent techniques of next-generations sequencing techniques, we carried out the researches on a social insect, termites, focusing on the genomic basis underlying the highly sofisticated sociality. Based on the results obtained by transcriptomic and gene expression analyses, we successfully identified the genes responsible for the soldier caste-specific genes that are responsible for the mandibular morphogenesis. Furthremore, the comparisons among termite species revealed that, in the ancectral lineage of termites, the ratio of non-synonimous substitutions in many genes increased, suggesting that the positive natural selection was suggested to have occurred. In addition, it was also revealed that there is a negative correlation between methylation levels of genes and caste-biased gene expressions, and that the gene duplication might have facilitate the evolution of highly-sophisticated sociality seen in termites.
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