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Anyone know anything about mule color genetics?

Equine-Reproduction.com Bulletin Board » Equine Genetics » Anyone know anything about mule color genetics? « Previous Next »


Author Message
 

Renae Brumley
Yearling
Username: Renaecd

Post Number: 61
Registered: 02-2006
Posted on Monday, February 09, 2009 - 12:11 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have a sorrel QH mare that I am wanting to breed to a mammoth jack this season. I am actually wanting a sorrel mule, so hopefully it won't be too difficult. I understand horse genetics pretty well, just don't know much about donkey genetics or how they cross with horse genetics. Could anyone enlighten me? Thanks!
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 1870
Registered: 01-2008
Posted on Monday, February 09, 2009 - 01:33 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I really don't know anything about donkey genetics either, but it seems to me that with a sorrel mare you only have 2 options...sorrel or the grey. I wouldn't think that donkey genetics would override the mares ability to produce certain colors, would you? I don't know, good question. Hopefully somebody here has some insight to offer....I'd be interested to know too.
 

Renae Brumley
Yearling
Username: Renaecd

Post Number: 62
Registered: 02-2006
Posted on Thursday, February 12, 2009 - 09:41 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I went and looked at a jack last night. He is white...he may be tecnically grey, but he is not the typical donkey grey. He has a slightly visible cross on his back and striping on his legs that are also "white". There were five of his grown offspring there. Three of them were bred to a grey QH mare, and two were ot of a sorrel Saddlebred mare. Here are the crosses...

"White" jack X Grey QH mare

2 yr Black with cross and striping...going grey.
5 yr Dun with cros and striping....going grey.
7 yr Bay with DARK cross and striping


"White" jack X Sorrel Saddlebred mare

2 yr Sorrel with faint cross and striping
3 yr Sorrel with no cross or striping



I wish I knew what that mare was under that grey! Wonder if she carries the dun factor, which causes her mule babies to have more pronounced striping? That pair has thrown three different colors: black, dun, and bay. Seems to me she could be dun under there? The owners said they got her when she was a yearling and she was already grey. Or maybe the striping simply comes from the jack. I'm hoping the greying is coming from the mare and not from the jack.

The saddlebred mare is sorrel and has had two sorrels. One with faint striping and one without any striping. Neither appear to be going grey, so again, I'm hoping that was coming from the QH mare.


The jack is the same color as the one on this website, except that youcan clearly see a cross on his back and striping on his legs that are just a darker white, if that makes any sense.

http://atigradoacres.com/patton.shtml

If anyone has any thoughts or insight, please let me know! I can't seem to find very much info on mule colors.
 

Diana Gilger
Senior Stallion or Mare
Username: Kdgilger

Post Number: 1888
Registered: 01-2008
Posted on Thursday, February 12, 2009 - 11:49 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Sounds to me like the grey mare probably carries agouti, and is a black based mare. The mule probably carries one copy of the greying gene, and the mare too...and each of these has gotten it from both parents. Apparantly, it is not dominant against sorrel genetics.



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