How did chocolate come out of two black parents?

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BlackSpruceRabbitry7

BlackSpruceRabbitry7

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I have a litter of Mini Rex kits right now, three chocolate, and three black. Both parents are black, with no chocolate on pedigrees. Where did the chocolate come from?

I know blue is the dilute to black, and lilac is the dilute to chocolate. But chocolate is it's own colour?
 
Chocolate is just sort of a modified black. A very typical recessive gene. It requires both black parents to have it to show up in the nestbox, and can be carried and passed along unexpressed for generations.
 
Chocolate hides "under" black. Recessive genes can pop up 10+ generations later. I've had some 8-10 generation peds when someone decided to be excessive in their record keeping. No sign of some recessive gene and then suddenly I have a random colored kit Like the harlequin I got one mini rex litter out of a chocolate by chocolate by a black and chocolate, etc... Entire pedigrees of blue, black, chocolate and I get rew and harlequin.
 
I realize now that I didn't explain that well. Chocolate is it's own color and effects a lot of of other colors! (chocolate tort, chocolate agouti, etc.)

A self chocolate genotype is aa bb C_ D_ E_ The two recessive (b)s are the chocolate and that means both black parents had to have a genotype of aa Bb C_ D_ E_.
A self black without a copy of the chocolate gene would look like aa BB C_ D_ E_
 
Thanks a lot guys. :)
I just reviewed my black does pedigree, her mother is harlequin, father booted red. But the grandfather on both sides is lilac! Never looked that closely I guess. :roll:
My black buck's parents were both brokens though, and no brokens in any of their litters. They have had 4 litters before, first litter was 4 blacks, second was 5 blacks 1 chocolate, third was 1 harlequin 1 black, now this litter is 3 chocolates 3 blacks.
I did cross my black buck with a broken castor doe(daughter to my black doe) and they produced 2 broken chocolate, 1 chocolate, 1 black, 1 reddish looking broken, 2 improper castors.
I must confess, understanding colour crossing is still a bit confusing for me. :|
 
It only takes one copy of the gene that produces brokens to make broken colored offspring. When you crossed him to the broken doe, it was her that passed the gene. A self black rabbit cannot carry an invisible copy.

A rew could.
 
I also have an REW doe, I just bred her to my broken black buck.
What do you think she will produce with him?
Her father was black and mother was castor. Most of my broken black buck's pedigree is broken blacks. He produced 2 booted and 3 broken black with my black doe.
 
:lol: you might want to start keeping track of what pops up in the litters :) If you get something like rew, it also means both parents carry at least one (c)
Once you know the recessives they carry, you can start to predict the outcomes with a lot more accuracy!

Oh, and :welcome: to RT! Since I hadn't said it yet :oops:
 
It is interesting to keep track of what shows up in a litter. I use Evans for rabbit records. Under genetics... when a pair has a litter and i enter the Youngsters and their colors... it will update the Parents Genetics... so if recessives show up... then it will show that the parents had those genes.
( i think it is neat anyway :) )
 
I do take records of all my litters, I was just wondering what you thought I would get out of my REW doe, because it will be her first litter. I don't have a clue to what she will kindle.

Thanks for the Welcoming. :D
 
I think that's awesome! I am greedy for colors, and secretly hoping that our rabbits carry the recessive Chocolate and Dilute genes. :whistle: Do you have pictures you could post?
 
Yup, I love the chocolates! I will be keeping one of the chocolate does. I was lucky enough to get 5 does and 1 buck in this litter! In which all three of the chocolates are does.


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<br /><br /> __________ Mon May 05, 2014 9:52 am __________ <br /><br /> Here's another one.

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