[accphotography]

Originally Posted by Debbie z.

F gene is what causes the lighter color in mane/tail in chesnuts. White gene will mask chesnut shade. Sorry had to clarify my sentence alittle more in detail.

You mean when a horse is all white?

ACC

[accphotography]

Originally Posted by Debbie z.

They look the same. But genetically speaking their are ways to determine the breakdown of the colors by eye and scientifically. It's very interesting. And registering is another way to associations. Not that is all agreeable.

Are you saying they ARE different genetically?

ACC

[RiddleMeThis]

Originally Posted by accphotography

Are you saying they ARE different genetically?

ACC

I think she is saying waht she calls sorrel vs chestnut are different genetically and IMO TECHNICALLY they are.

As of right now we only know they are ee, but there has to be some gene that is determining color, and that gene will be different from a liver to a pale chestnut IMO. So imo that is how they are "different genetically."

Now for my thoughts, for ME EVERYTHING is chestnut. Its just shades that are different. Sorrel vs chestnut whether genetically or phenotypically IMO really is just a different name for the same thing.

[accphotography]

Hmmm. Interesting. In the actual DNA there are "controllers between the genes" that are capable of determining things like shade. That being the case, I am not sure there is a gene per se controlling shade and thus super pale all the way to liver may always be the same genetically even when we know "all the genes".

But I do see your point and you could very well be right.

ACC

[Debbie z.]

Originally Posted by RiddleMeThis

I think she is saying waht she calls sorrel vs chestnut are different genetically and IMO TECHNICALLY they are.

As of right now we only know they are ee, but there has to be some gene that is determining color, and that gene will be different from a liver to a pale chestnut IMO. So imo that is how they are "different genetically."

Now for my thoughts, for ME EVERYTHING is chestnut. Its just shades that are different. Sorrel vs chestnut whether genetically or phenotypically IMO really is just a different name for the same thing.

I'm wondering if the PANGARE gene causes the light areas of color to lighten
in some cases.

chesnut w/ flaxen mane and tail to become blond sorrel
STY causes blk to mix into coat like :
clear sorrel becomes chesnut or liver chesnut
clear bay becomes mahogany bay palimino becomes smutty palimino

[Debbie z.]

Originally Posted by accphotography

You mean when a horse is all white?

ACC

In rare exceptions chesnut+chesnut can produce white if both parents carry sabino white gene. The white foal will still be chesnut only he will have white gene masking the chesnut color. Horse can carry a roan gene and look all white. Trying to find pictures.

[JBandRio]

Originally Posted by Debbie z.

In rare exceptions chesnut+chesnut can produce white if both parents carry sabino white gene. The white foal will still be chesnut only he will have white gene masking the chesnut color.

Sure - maximally expressed Sabino covers up the actual "color" of the horse.

Horse can carry a roan gene and look all white. Trying to find pictures.

A true Roan will not look all white unless he's also a max expressed Sabino. True roan, nothing else, leaves the head and legs dark. Now, for sure, the body can be just about white.

[Debbie z.]

Originally Posted by JBandRio

Sure - maximally expressed Sabino covers up the actual "color" of the horse.


A true Roan will not look all white unless he's also a max expressed Sabino. True roan, nothing else, leaves the head and legs dark. Now, for sure, the body can be just about white.

Legs and head being dark true characteristic of chesnut. And there can be white with parents carrying white gene

[JBandRio]

Originally Posted by Debbie z.

Legs and head being dark true characteristic of chesnut.

being chestnut, or not, has nothing to with the fact that a true roan has a dark head and dark legs, assuming no other pattern is wiping out the color.

And there can be white with parents carrying white gene

By "white gene" do you mean dominant white or a maximally expressed Sabino? It hasn't been in question that those things - or gray, or appy varnishing, or several other "colors" - can take a way a dark head and legs of a true Roan.

[doublebarr]

Originally Posted by Debbie z.

Legs and head being dark true characteristic of chesnut. And there can be white with parents carrying white gene

JB - You're doing a better job following this than me.

Is there any way you can explain just what you mean Debbie z? "True roans" will have either a red or black (black or A) based head and legs. I don't understand what you are referencing with chestnut?