Tested Pony: Misty II's Henry

Today's tested pony is Misty II's Henry born in 1998. He's likely the last living great grandson of Misty and the closest related to her to get a full genetic testing workup. Henry's owner and breeder is my friend Kendy Allen. His sire was bay tobiano Lightning of Chincoteague who was born on Assateague in 1988. Henry's dam was half Arabian chestnut tobiano Misty II, the last living daughter of Stormy. He's family to me as he's the sire of my pony Misty's Hurricane Izzy.

Henry is a chestnut so he tested as such as e/e. His sire is bay, carrying recessive chestnut, and his dam is chestnut.
https://www.thecolorfulchincoteague.com/chestnut.html

Interestingly he tested as homozygous for agouti. Agouti causes bay but it has nothing to do on chestnuts so can "travel" unseen for generations. His sire was bay and got one copy from him. I had to dig on his dam's side as both of Misty II's parents were chestnut. Misty II's Arabian sire Al-Marah Sunny Jim had bays in his pedigree so it may have come from one of them. Otherwise it could have come from Wings's bay dam. Or an unknown bay in Pied Piper's ancestry. My pony is a bay with a black dam so Henry's two copies of agouti showed up in her.
https://www.thecolorfulchincoteague.com/bay.html

Henry tested as possibly having primitive markings, nd1/nd2. But since he has so much white we can't see if he does or not!
https://www.thecolorfulchincoteague.com/primitivemarkings.html

Both of Henry's parents were tobiano pinto and he did inherit it from both of them. He tested as TO/TO or homozygous for tobiano. All of Henry's five foals were tobiano pinto. Homozygous tobianos are known for having lots of cat tracks and roaning. I think it's interesting that Henry only has a little roaning and a couple cat tracks.
https://www.thecolorfulchincoteague.com/tobiano.html
https://www.thecolorfulchincoteague.com/cattracks.html
https://www.thecolorfulchincoteague.com/roaning.html

Henry tested to have the pinto pattern Eden White 3. EDXW3 is my guess as to why he has such a big blaze and so much white. Much to my sadness my Izzy didn't inherit it from him. Henry has a pedigree with a lot of old blood considering his sire was born in 1988 and his dam in 1974. So it seems EDXW3 has been in Chincoteague Ponies for a long time. Even though we don't know which side of the family he inherited it from. Interesting to think about!
https://www.thecolorfulchincoteague.com/eden-white.html

Something not color related, Henry has the gene that causes gaited horses called DMRT3. He's not gaited, but horses like him will occasionally pace a stride or two. My pony inherited DMRT3 from him and she will pace a couple strides every now and again when I'm working her. It's kind of cool to watch for!