| Budget Amount *help |
¥214,760,000 (Direct Cost: ¥165,200,000、Indirect Cost: ¥49,560,000)
Fiscal Year 2015: ¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
Fiscal Year 2014: ¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
Fiscal Year 2013: ¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
Fiscal Year 2012: ¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
Fiscal Year 2011: ¥44,200,000 (Direct Cost: ¥34,000,000、Indirect Cost: ¥10,200,000)
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| Outline of Final Research Achievements |
Why does every animal species exhibit a behavioral pattern that is distinctly different from that of other species? In this study, we address this question by a comparative approach in two fruit fly species, Drosophila melanogaster and D. subobscura. We focus on a courtship behavior element unique to D. subobscura, the extrusion of proboscis by a male directed to the female face (licking-like action). We hypothesized that a new behavioral element will be added to the courtship ritual when a new cellular member is recruited to the circuit by mutations. We revealed that genetic transfer of a regulatory region of the courtship master regulator gene fruitless from subobscura to melanogaster partly conferred the ability to execute the licking-like action on the melanogaster host, when the transferred sequence was used to activate the neurons. It remains unknown which neurons are critically involved in producing the subobscura-type licking-like action in the melanogaster host.
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