研究成果の概要（英文）： 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.
昆虫視葉板における色覚初期過程の解剖学的・生理学的解析
運用要項