Genetics question

[Pinkears1979]

My Sable doe has given birth to 7 lovely mini lops this morning. Annabelle is a dark sable, mainly black and then brown along the sides. The buck is a fawn colour. I went research crazy with genetics but then can never be 100% sure.

First question is what do you think their genetic coding would be?

And second , what are the likely baby outcomes? They look quite a mix! thanks

 

[MsTemeraire]

Being Siamese sable, Annabelle will be aaB_c(chl)cD_E_.
Your buck appears to be a Vienna marked fawn, with a lot of white Vienna markings. This would make him A_B_C_ddee and with the Vienna added, Vv.

As you can see from the _ underscores, information about what other recessives they may carry isn't known, so it's not easy to guess the offsprings' colour, but I would think Agouti (Chestnut in the USA) is the most likely. Some will have some white spotting from the Vienna gene.

Black is possible if the Fawn carries self, a. Opal and blue may appear if the Sable carries dilute. Depending on that the Fawn has on the C locus, you might get REW, sable, or sable agouti. You could potentially get Orange if Annabelle carries non-extension, e.

 

[Naelin]

Not an expert on that gene at all, but the buck also looks dutch banded to me, maybe? Do you happen to know the colours (better yet, have pictures) of their parents?
Could you also add a picture of Anabelle viewed from the side?

 

[MsTemeraire]

Not an expert on that gene at all, but the buck also looks dutch banded to me, maybe?

The Vienna gene can give white markings that resemble Dutch, but they're separate genes; the similarity occurs due to the way pigment cells migrate from the neural crest in the embryo. The gene is named after the first recorded Blue-eyed White breed, the White Vienna (pic below) which isn't recognised in the USA but is well known throughout Europe, first appearing in 1907.

It is a dominant white spotting gene with enormously variable expression - one copy of Vienna gives a coloured rabbit with white markings, anything from a few white hairs on one toe, or a white toenail, through to a white nose snip, a blaze, or a pattern that starts to look Dutch. Selective breeding can increase the amount of white, The eyes may also be blue, either fully or with sectoral heterochromia. Two copies of the Vienna gene produces a blue-eyed white rabbit - the markings have spread to cover the entire animal.