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Any information about the white sclera gene? (appy eye?)

Equine-Reproduction.com Bulletin Board » Equine Genetics » Any information about the white sclera gene? (appy eye?) « Previous Next »


Author Message
 

Janie Lee
Neonate
Username: Dizzymee

Post Number: 1
Registered: 07-2009
Posted on Sunday, July 19, 2009 - 03:48 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hi there,
I just had a morgan filly born and noticed that one of her eyes has a white sclera, a condition I've learned (through reading on the internet) is very common in Appy's and one of the indicators that a horse is an Appy (which my filly is obviously not). My question is, does anyone have any information about the inheritability of this trait? Is it recessive, dominant? Neither of her parents have the trait, but her paternal grandfather does. It is not at all common in the Morgan breed. I had planned to use this filly for a broodmare in the future, but this is probably a conformational fault in our breed, and need to consider that seriously -- so I'd like to learn more. thanks!
 

Kim Peavy
Breeding Stock
Username: Lovemysinbad

Post Number: 530
Registered: 09-2007
Posted on Monday, July 20, 2009 - 11:04 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hi Janie: I'm curious on this too...my 25% pinto colt has white around just one of his eyes...kinda strange...
 

Darkhorse 2572
Neonate
Username: Darkhorse2572

Post Number: 10
Registered: 03-2009
Posted on Saturday, August 01, 2009 - 11:14 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I would be curious to find out as well...I have a buckskin warmblood (German breeding not a crossbred) colt with a white sclera as well (neither sire nor dam has a white sclera)...hmm....
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 2513
Registered: 01-2008
Posted on Monday, August 03, 2009 - 11:44 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Sclera is not strictly an appaloosa genetic. Also, it is not an indicator of whether or not a horse is appy. It is just more common in appies than other breeds. It is not unusual that other breeds have it, I have known several horses in my lifetime that have it...typically the color breeds, such as pinto, and dilutes!

(Message edited by kdgilger on August 03, 2009)
 

Megan C
Nursing Foal
Username: Drumdoch23

Post Number: 20
Registered: 09-2009
Posted on Tuesday, May 18, 2010 - 11:31 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

So is this just a case of coloring when it comes to pinto horses?
My lovely little black and white pinto colt (crossbred mare X dutch warmblood) has two "wall eyes" as I have known to call them... white sclera...
Neither parents have this... both have big, beautiful soft brown eyes. Baby has two walleyes. Apparently this is a recessive gene that just sneaks in there???
 

Susan Walker
Neonate
Username: Somedaysue

Post Number: 6
Registered: 04-2009
Posted on Tuesday, May 18, 2010 - 01:44 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I don't know anything about the genetics behind a white sclera either, other than the fact that I have a mare with white sclera and one of her offspring shares the trait and two others do not. Father does not have the trait.

However, in terms of terminology only, I consider walleyed to be a horse that has non-brown irises that are light in color, not a horse that has white sclera. I don't know of a term for a horse that has brown eyes rimmed with the white sclera. Or am I wrong?
 

Susan Walker
Neonate
Username: Somedaysue

Post Number: 7
Registered: 04-2009
Posted on Tuesday, May 18, 2010 - 01:49 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Postscript: Oh yes, if Janie Lee, the originator of this thread way back when, is still listening, the Morgan horse standard reads, "Coat or eye color shall have no bearing when judging Morgan horses." That is the official party line. Of course, individual people will have their own preferences, but it can't be considered a fault in the show ring or in breeding stock. Personally, I believe that some people consider a horse with a white sclera to be more spirited or at least to look that way.
 

WSTRNPLEASUREPAINTS
Nursing Foal
Username: Jmshowhorses

Post Number: 20
Registered: 05-2010
Posted on Wednesday, June 02, 2010 - 09:14 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hell ",Impressive" had "sclera", or bugged out, crazy ass eyes??? And so do most all of my colts. I think I have "sclera", ... RIGHT NOW?
I COMMENTED ON A POST THAT ISN'T 5 YEARS OLD ...YEA
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 3448
Registered: 01-2008
Posted on Thursday, June 03, 2010 - 02:16 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

OK, it's 1 am, and i now have bugged out crazy ass eyes.......LOL WSTRNPLEASUREPAINTS, you're just plain crazy.....i like you! LOL



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