The Tobiano gene is argued to not cause face markings. This leads to the theory that Tobiano horses with loud white on the face is thought to have other genes present. These genes present causing the face markings are believed to be forms of Sabino and/or Splash White. As there is still very little known of these gene groupings we can only judge off the pheonotype of different horses.
Check out this album to see pictures of horses with Tobiano and face markings:
Tobiano with Face Markings HorsesCheck out this album to see Tobiano with face markings horses! This means that it is likely …
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