|Budget Amount *help
¥40,300,000 (Direct Cost: ¥31,000,000、Indirect Cost: ¥9,300,000)
Fiscal Year 2017: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2016: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2015: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2014: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
|Outline of Final Research Achievements
For understanding the neuronal mechanism underlying color vision in insects, we focused on the first optic ganglion, the lamina, of a butterfly Papilio that has sophisticated color vision. We studied (1) the neuronal connections in the lamina and (2) the possible spectral oppoency in the photoreceptors and lamina monopolar cells (LMCs).
We analyzed serial EM pictures of the lamina and revealed all synaptic connections in six lamina cartridges including both intra- and inter-cartridge connections. This provides the second data set of such following the one in Drosophila melanogaster. We also analyzed the possible spectral opponencies in the lamina, and found two histamine-gated chloride channels appeared to be involved in the photoreceptor spectral opponency.