Dun Horses -- Mechanism (IMAGE)

Uppsala University

Dun Horses -- Mechanism

Caption

This is an illustration of the mechanism underlying Dun color. TBX3 expression (indicated in green) in the hair follicle in Dun horses leads to lack of pigment production in parts of the hair follicle; pigment indicated in black. In non-dun horses there is no TBX3 expression in the hair follicle, and the entire hair is fully pigmented.

Credit

Kelly McGowan and Freyja Imsland

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