Colour people (genetics peeps)

[blitznbobs]

Just wondering are their any specific genes for facial markings - the horse ive just bought has a blaze but neither of her parents do ... has this been looked at genetically
Like other colour variations xx

 

[ycbm]

Clones have different white markings than each other, when they are by definition genetically identical. It's always fascinated me.

 

[ester]

Nope/not as yet.

 

[JJS]

Certain white patterns can make them more likely to have specific types of face white, such as splash causing big, loud blazes, but there’s a lot more to learn.

 

[Chinchilla]

A lot of white markings are caused by melanocytes failing to migrate fully down from the neural crest of the embryo. So it's effectively a 'mistake' on a cellular level whilst the animal is in utero.