Confocal image showing the dorso-ventral diencephalic tract (DVDT) in red among the green neurons of the 24 hours old living zebrafish brain. The embryo used was transgenic, expressing the photoconvertible protein “Kaede” in all mature neurons in the brain. The epiphysial neurons were photoconverted from green to red using a UV laser beam directed selectively at them. After several minutes, the photoconverted protein had diffused to the tip of the axons of these cells allowing to visualize the entire DVDT.

School of Biomedical Science

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