| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
Brood parasitism is one of ingenious reproductive strategies and seen in a variety of animals. In these animals, adaptive evolution in various traits including egg traits occurs in relation to brood parasitism. This study focused adaptive diversification in egg shape of bitterling fishes (Acheilognathinae) that utilize several freshwater mussels as reproductive hosts, and examined evolutionary genetic basis of diversification in egg shape associated with this brood parasitism. A quantitative trait locus (QTL) mapping approach using in this study elucidated the causal loci of variation in egg shape and size within a single bitterling species (Acheilognathus tabira) that shows extreme population (i.e., subspecies) divergence in egg traits in relation to host species.
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