[Zbrafish] Larval zebrafish melanocyte aggregation

[Chao Zhang]

WT larval zebrafish keeps melanocytes dispersed until 4dpf. Then they
will aggregate between 4 and 5dpf. So what kind of physiological factors
contribute to this process. The balance of a-MSH/MCH, etc? What kind of
reasons could delay this normal process(Dispersed melanophore remains
until 5 or 6dpf and aggregate since 7dpf)?

Chao