| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Outline of Final Research Achievements |
Anisogamy (mating system where gamete size is different between the two sexes) causes sexual selection through sperm competition. Therefore, answering questions on the mechanisms of the evolution of anisogamy is the most fundamental approach to understand the evolution of sexual dimorphism in morphology and behavior. In this research, we obtained the first empirical supports to the two important theoretical assumptions on 1) the role of male gametic resources to improve the fitness of a zygote and 2) the relationship between zygote size and its fitness, by focusing on several useful traits of a green alga.
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