Homozygous black...

accphotography · Postby **accphotography** » Mon Sep 20, 2010 4:52 pm

I just wanted to say that I'm about 98% sure Street Sense is homozygous black. COOL!! :lol:

springboro · Postby **springboro** » Mon Sep 20, 2010 6:10 pm

????

not a chance... that's a classic dark bay/brown.... http://www.darleyamerica.com/stallions/ ... nformation

accphotography · Postby **accphotography** » Mon Sep 20, 2010 6:18 pm

Street Sense... not Street Cry. :lol:

springboro · Postby **springboro** » Mon Sep 20, 2010 6:57 pm

same difference... that's a bay, not a black.....

http://www.darleyamerica.com/stallions/ ... nformation

seriously, what definition are you using for black?

spacely · Postby **spacely** » Mon Sep 20, 2010 7:04 pm

springboro wrote:same difference... that's a bay, not a black.....

http://www.darleyamerica.com/stallions/ ... nformation

seriously, what definition are you using for black?

It only means that he can't produce chestnut. He can certainly produce bays, browns & blacks.

springboro · Postby **springboro** » Mon Sep 20, 2010 7:13 pm

omg... we agree!

a quick search of all his foals at Keeneland reveals not a single chestnut!

i'm not ready to call him a black (I have seen about 6 true blacks in TBs, and i do not count Halo as black) but I agree that Street Sense can't get any chestnuts

accphotography · Postby **accphotography** » Mon Sep 20, 2010 7:44 pm

Thanks Spacely. Exactly. I never said he was black.

HeadlessHorseman · Postby **HeadlessHorseman** » Mon Sep 20, 2010 8:09 pm

HOW about this dude???

http://www.darleyamerica.com/stallions/ ... nformation

That looks pretty black to me

HH

accphotography · Postby **accphotography** » Mon Sep 20, 2010 8:26 pm

Nah he's brown. That photo does make him look black but the lighting is wrechid. You can see the brown here:

His sire's family is known for being very, very unusually dark browns.

This SON of Offlee Wild certainly appears black though:

xfactor fan · Postby **xfactor fan** » Tue Sep 21, 2010 2:56 pm

Just love the confusion when someones says a horse if a true breeding black.

Are they talking about basecoat? Or Agouti?

A horse can be true breeding black EE, will never have a red foal, or aa, black based E, maybe e (red base coat) but recessive for Agouti, showing the black coat color.

In both case the statement can be true, just depends on what is being described.

Also what's the current thinking about Agouti itself?

AA-bay
?? Wild Bay
At brown
aa black

In particular what color is a horse that is A At, or a At?

accphotography · Postby **accphotography** » Tue Sep 21, 2010 3:03 pm

xfactor fan wrote:Also what's the current thinking about Agouti itself?

AA-bay
?? Wild Bay
At brown
aa black

In particular what color is a horse that is A At, or a At?

It's (in order of dominance):
A+ - Wild Bay
A - Bay
At - Brown
a - Black

An 'A At' would be bay visually. An 'At a' or 'At At' would be brown. Street Sense is 'At_" imo, so if he is not carrying an 'a' he is homozygous brown.

Heidilady · Postby **Heidilady** » Tue Feb 15, 2011 10:13 am

Hey guys, I was just wondering if Medaglia D'Oro is homozygous black. Not a chestnut foal to date in the database, so I just assumed he was. I think there might be a grey in there, but it seems all bay and dark bay pretty much.

accphotography · Postby **accphotography** » Tue Feb 15, 2011 12:49 pm

Yes he is. So are Tiznow and Bernardini.

LB · Postby LB » Tue Feb 15, 2011 1:00 pm

accphotography wrote:Yes he is. So are Tiznow and Bernardini.

And Cherokee Run, Empire Maker, and Dixie Union.

Many TB stallions don't carry the chestnut gene. Though I'm baffled as to how that makes them "homozygous black".

accphotography · Postby **accphotography** » Tue Feb 15, 2011 1:21 pm

Because they are. :lol:

They are homozygous for the black allele.