| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2017: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2016: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2015: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Outline of Final Research Achievements |
We examined the effects of genotypes and DNA methylation variations on visual sensitivity and female preference to male body colors, focusing on light environments during growth and carotenoid intakes in the guppy, Poecilia reticulata. The results showed that genetic polymorphism and light environment in habitats can contribute to variation in opsin gene expression levels and subsequent visual sensitivity and female preference for male body color. The genotype and environmental interactions were partly caused by difference in DNA methylation rates of CG sequences along controlling regions of opsin genes. The whole genome bisulfie sequence analysis showed that in the brains and eyes in Guppies fed by high concentration of carotenoid foods, genes for light sensitivity and regulating synaptic membranes were detected genes with higher h DNA methylation rates.
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