First Produced By: Jeff Holloway
First Produced In: Unknown
Last Updated: 2022-04-01
Do you have any suggestions or corrections for this article?
Click here to contribute feedback
It originated within a paint group, hence the reason it is usually accompanied by the paint gene. It is, however, a completely separate gene. GX simply stands for Gene X. 
GX have clean heads.
GX have a significantly reduced pattern.
No known proven lines
No known related traits