> She looked just like a solid black, except for the small white tear ducts.
> I will put a picture of her in the files, "One of the Shetland Mule Ewe
> Lambs". The dam of this minimal AebAa is a solid AaAa with almost no white
> fibres at 6 years of age. The sire shows the full Aeb pattern. So I expect
> there may be more at work than just Agouti.
>
>
Hi Linda,
fascinating as you say! and works for me.
Here's a mad thought.In solid sheep, whatever is at work could be responsible
for the incremental colour variance in sheep who carry the colour modified gene.
In other words. The incremental changes in colour ( some are more intense some
less) you see in modified sheep is not directly due to the colour modifed gene
itself but due to something else at work? That would depend of course on
beliveing an incremental allele somewhere else being possible.............
Hi Laurelen and Maggie: Thanks for your thoughts. The reason I asked has to do with the Agouti hierarchy and the idea of dominance. Both the top and the...
Linda wrote; ... Hi Linda, fascinating as you say! and works for me. Here's a mad thought.In solid sheep, whatever is at work could be responsible for the...
Hi Renee: Yes, I think that the range of intensity of colour in both the regular colours and the modified ones may be caused by the interaction of other genes....
... Hi Linda, and so a very " strong" self black with an Aeb might produce a black lamb which in other breeding combinations may prove to be "dominant black"?...
Hi Renee: I think dominant black is quite a different thing than what Maggie has termed strong self, at least the way I understand it. I think with strong self...
Hi Linda, ... there would be no change at agouti. It would still be AaAa, your strong self black AaAa has an additional modifier ( lets call it that for the...
Hi Renee: Maybe I was confused about your previous email. I thought you were equating strong self to Extension D. I agree, it seems possible that there is a...
Hi Linda, ... were equating ... No I'm equating "strong" to be an incremental modifier it would only become dominant if it obscured (was dominant to ) an...
Hi Linda, for now lets just use the terms modifier for a strong ( intense) modifier and dominant to refer to obscuring an agouti pattern. To take your Aeb...
Linda, Do you think that some of the English Blue that are dark and have small tears are heterozygous, while the ones that have large tears and saddle, ...
Hi Laurelen: I have assumed that the tears are an integral part of the pattern. Not sure about the ear rims, etc. and moustache as the "minimal" ewe does not...
Dear Linda, I agree all you have stated. White tears ARE definitive of the english blue pattern. Rimmed ears, moustache etc. are, many times, the first things...
Hi Maggie: No problem with the length of the response. I appreciate the time you take to state things clearly. Yes, the minimal ewe is AebAa out of what I...
The term "strong self" is just my own verbal expression of color experience at my farm. It seems that, for any given agouti pattern, family lines will have...
Thank you, Linda. You are correct. The agouti genes and the extension genes are quite different. And they exist on 2 separate chromosomes, to boot! I...