[Jacob-list] "lilac carriers"

[Linda]

If "true" lilacs are a recessive, as I think you agreed, then wouldn't 
the offspring of a true lilac carry one lilac gene from that parent and 
thus be a carrier?  The non-lilac offspring of two proven lilac carriers 
would have a 67% chance of being a carrier, but it looks to me that the 
offspring of a true lilac bred to not-lilac is going to carry lilac.
I am calling "true" lilacs those lilac sheep that bred together, always 
produce lilacs. I have heard the term 'dark lilac' to refer to those 
lilacs that do not breed true. I use the term 'chocolate lilac' to refer 
to sheep with chocolate facial and leg markings and wool. Mine breed 
true. I see very few 'blue' lilacs around here.

Linda


Dan Carpenter wrote:

>

> Some people say you can tell by the presence of an "eye ring," but I 

> haven't found that to be reliable.  If both parents are "regular 

> lilac" (as opposed to, say, "chocolate lilac") the non-lilac offspring 

> have a 67% chance of being carriers.  If one parent is regular lilac 

> the non-lilac offspring have a 50% chance of being carriers.  If one 

> or both of the parents are called lilac, but are not regular lilac, 

> then it's anybodies guess.

>

>  

>

> *From:* jacob-list-bounces at jacobsheep.com 

> [mailto:jacob-list-bounces at jacobsheep.com] *On Behalf Of *Brenda

> *Sent:* Wednesday, June 16, 2010 12:22 AM

> *To:* jacob-list at jacobsheep.com

> *Subject:* [Jacob-list] "lilac carriers"

>

>  

>

> Hi, all-

>

>  

>

> I see sheep advertised from time to time as lilac carriers. Can we 

> know if a non-lilac sheep is a carrier before seeing lilac offspring? 

> If both parents are lilacs, would a non-lilac lamb have to be a 

> carrier? I am thinking of simple genetics where I'd expect some would 

> be non-lilac and not carriers, some non-lilac but carriers, and some 

> lilacs if both parents were lilac. If only one parent was a lilac I 

> would expect a significant percentage of non-lilacs to NOT be 

> carriers. But nothing is simple with Jacob genetics, is it?

>

>  

>

> Brenda

>

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