[Jacob-list] "lilac carriers"

[Dan Carpenter]

I absolutely agree!

 

From: jacob-list-bounces at jacobsheep.com
[mailto:jacob-list-bounces at jacobsheep.com] On Behalf Of Linda
Sent: Wednesday, June 16, 2010 3:54 PM
To: Dan Carpenter
Cc: jacob-list at jacobsheep.com
Subject: Re: [Jacob-list] "lilac carriers"

 

PS - Dan, I consider a sheep that produces a regular/true lilac lamb to be a
proven lilac carrier. Would you agree on that?

Linda

Dan Carpenter wrote: 

You're right, I left a word out.  A "regular" or "true" lilac should ALWAYS
produce carriers OR more true lilacs.   I meant to say If both parents are
"regular lilac" carriers.the non-lilac offspring have a 67% chance of being
carriers (as you say).  If both parents are true lilac, then the lambs
should be true lilac.  It's the other non-black colors being lumped in as
lilacs that mess up these percentages

 

-Dan

 

From: jacob-list-bounces at jacobsheep.com
[mailto:jacob-list-bounces at jacobsheep.com] On Behalf Of Linda
Sent: Wednesday, June 16, 2010 11:20 AM
To: Dan Carpenter
Cc: jacob-list at jacobsheep.com; 'Brenda'
Subject: Re: [Jacob-list] "lilac carriers"

 

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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