[Jacob-list] Moorit X Lilac
Neal and Louise Grose
nlgrose at yadtel.net
Tue May 4 06:20:19 EDT 2010
The key here is that you have a Lilac carrier Jacob on both sides of the
pedigree in the lilac crossbred lamb. I remember from somewhere that the
black in Black Welsh Mountain comes from crosses to Jacob in days gone by.
To clarify what I posted earlier a little: When we say that "lilac is a
simple recessive to black", we are implying that lilac is only expressed in
absence of a black allele. In a similar way, those of us who are blue eyed
are defective in that we do not have at least one functioning allele to
produce melanin in our irises. In sheep, the hierarchy of dominance one the
black-white gene is probably something like:
Jacob black > white > normal black > silver > moorit .
I was trying to answer where lilac falls in this. The answer seems to be
that it doesn't. Lilac probably works on some other gene, one that modifies
black. In other words, instead of "not black", "lilac" is simple recessive
to "not lilac".
Cool, huh?
Neal Grose
----- Original Message -----
From: "Shannon Phifer" <kenleighacres at yahoo.com>
To: <jacob-list at jacobsheep.com>
Sent: Tuesday, May 04, 2010 12:54 AM
Subject: Re: [Jacob-list] Moorit X Lilac
'As a result, we now have what appears to be the only lilac crossbred that I
have ever seen.' Neal
Interesting discussion! My sister bought a few sheep from us a couple years
ago (for personal meat lambs) and she had a lilac/white jacob looking
crossbred this year. The sire was a lilac jacob and the dam was a jacob x
bfl. The dam was a typical looking jacob cross - black with a white spot on
her head. We were both shocked! I posted a picture of him on my blog -
http://kenleighacres.wordpress.com/
Shannon Phifer
Kenleigh Acres Farm
www.kenleigh-acres.com
That'll Do Photography
www.thatlldo.photoreflect.com
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