| Budget Amount *help |
¥43,940,000 (Direct Cost: ¥33,800,000、Indirect Cost: ¥10,140,000)
Fiscal Year 2021: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2020: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2019: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2018: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
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| Outline of Final Research Achievements |
We detected a difference in foraging patterns of wild dichromatic and trichromatic white-faced capuchins for flowers, suggesting that trichromacy enhances detection of small, ephemeral resources. We showed that frequency of fruit-directed olfactory behavior is positively correlated with increases in the volume of fruit odors produced during ripening and found a complex interaction among fruit traits, sensory capacities and foraging strategies. We compared genomes of capuchin populations from tropical dry forests and rainforests and identified genes under positive selection related to periodic resource scarcity, longevity and brain development. We showed that the ancestral type of primate umami-taste receptor T1R1/T1R3 was sensitive to nucleotides of insects and evolved to detect L-Glu found in folivorous diets. By using targeted capture enrichment for olfactory receptor genes of Japanese population, we found high and novel genetic variation possibly maintained by balancing selection.
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