What causes the grulla Coloring?

Question

photos too?

Answer 1

BlueSB explained perfectly! So here is the color. It is my favorite color!! The 1st one is the stud I'm going to breed to my mare.

http://colormorgans.tripod.com/ragtimedu...

http://colormorgans.tripod.com/amberfiel...

http://colormorgans.tripod.com/stormwash...

http://colormorgans.tripod.com/successfu...

****edit****

Thank you BSB!!! He's Morgan. As you didn't know that! LOL Just had to add that..... LOL

Answer 2

Just the way the coat is. It's pretty huh!

Answer 3

The Dun gene acts somewhat like a dilution but with countershading like dorsal stripe, leg bars etc. Typically youll get a Grulla/Grullo when you breed a black horse and a dun. (not always) The Dun gene carries over and dilutes the black to more of a grey/blue. Same with Red Duns (diluted chestnut)

Answer 4

Black + Dun = Grulla

So......

E, aa, CC, dd, gg, ww, toto

E, aa, CC, D, gg, ww, toto

E=  horse has ability to form black pigment in the skin & hair.  Black pigment in hair may be either in a points pattern or distributed overall.

aa=  If horse has black hair (E), then that black hair is uniformly distributed over body & points. (A) has no effect on red (ee) pigment.

CC=  Horse is fully pigmented

dd=  horse has undiluted coat color

D= Horse shows a diluted body color to pinkish-red, yellow-red, yellow or mouse gray & has dark points including doral stripe, shoulder stripe & leg barring

gg=  Horse does not show progressive silvering with age

ww=  Horse is full pigmented.

toto=  No tobiano pattern present

Mind you, this is some info from UC Davis that I had in our records here.  With all of the changes & new advances in science, this may be out of date.  Or, I could have read it wrong!!!

Found some other stuff:

GENES are the W, G, E, A, C, D, TO

ALLELES are the W, w, G, g, E, e, A, a, C, Ccr, D, d, TO, to

example:  WW:  lethal

          Ww:  Horse typically lacks pigment in skin, hair & eyes & appears to be white.

          ww:  Horse is fully pigmented.

**EDIT**

American:  He is beautiful!!!!

Answer 5

Badger hit the nail on the head with that one. I the only thing anyone could add to that is if they knew the stud and had it blood typed to know it would throw that color.  I can't add anything but, I like that stud too, and I would like to get a baby from that as well.

To Proud- Your use of the terms is text book correct, but no one seperates male and female as Grulla/Grullo. I have owned two grulla's in my life one was a mare the other was a gelding. You just call the color grulla. Again Text book correct, but I have seen term in recent text books that are 50 years out of date. I am not puttin you down, just saying I have never heard anyone use grullo to discribe the color. And I personly love them mexican colors, duns, buckskins grulla's. Yummy.