The Greys are Here!

[SeinaMacabre]

so could I pu grey(black base) or dapple grey

• • You dont know if she will be dapple yet. Might be flea-bitten or other variation.

[Emilyjane1]

so could I pu grey(black base) or dapple grey

• • You dont know if she will be dapple yet. Might be flea-bitten or other variation.

ok

[bumblebee]

Just got this boy, it'll be fun to see how he changes love the legs!
http://www.horseworldonline.net/horse/profile/31694

[Ms. Trouble Maker]

I see someone got a gorgeous flee bitten grey stallion in the stud market!!

[SageFeather145]

How do the grey genes pass on? Do you have to breed two greys to get another?

[SeinaMacabre]

How do the grey genes pass on? Do you have to breed two greys to get another?

• • From what I know its 50% when one parent is grey, when both are its higher - not sure if 100%
    
    EDIT: also if either of parents has G/G - two copies of grey gene there 100% chance of getting grey offspring.

[Killeroo]

Wow! There are some really pretty ones!
I got this girl:
http://www.horseworldonline.net/horse/profile/32668

Not quite what I need for my current breeding plans but I'll give her a chance before I decide to sell her.

[nyraeia]

How do the grey genes pass on? Do you have to breed two greys to get another?

Grey is dominant. So if a horse has a Grey gene, it will grey out.

Simplified version:
A horse inherits two of every gene, one from the mare, one from the stallion.

So the possible variants are
(Grey) and (not grey) <-- this horse carries Grey, so it will grey out with age
(Grey) and (Grey) <-- same with this one
(not grey) and (not grey) <-- this one will not be grey, as it doesn't carry a gene for it

A foal inherits one of these genes randomly.

So if you have a stallion that has two Grey genes (GG), every single foal of his will inherit a gene for Grey, so all of these foals will be grey, regardless of the dam. This is called homozygous.
If the stallion is Gg (Grey and not-grey), there's a 50% chance of his foals to inherit the Grey gene, so about half of his foals will grey out if the mare's not grey. This is called heterozygous.
If both he and the mare are not grey, you will not get a grey foal. This is called homozygous, too.
Homo means same, hetero means different.

Remember, a foal inherits a gene from his sire and a gene from his mare each.
This leaves us with these combinations:

Stallion + Mare = Foal Possibilites
GG + GG = GG, GG, GG, GG (100% chance of grey foals that will all be homozygous for Grey)
GG + Gg = GG, Gg, GG, Gg (100% chance of grey foals, 50% of which will be homozygous)
GG + gg = Gg, Gg, Gg, Gg (100% chance of grey foals, all will be heterozygous)
Gg + Gg = GG, Gg, Gg, gg (three of the foals have a G gene, so three of four will grey out --> 75%)
Gg + gg = Gg, Gg, gg, gg (two of four foals will carry G, so 50%)

To answer your question: You do not have two breed two greys to get a grey. If a horse is grey, it will produce grey foals with a 50% chance.

I hope what I typed out is kind of clear :D

[nyraeia]

Edit: double posted by accident

[TBE]

Edit: double posted by accident

my mare just gave birth and im not sure if her colt has grey around his eyes http://www.horseworldonline.net/horse/profile/30009