Using plant pedigrees...

From: Scott Chapman <Scott.Chapman_at_CSIRO.AU>
Date: Mon, 14 Mar 2005 10:59:37 +1100

In using ASREML for sugarcane (where lines are fixed clones), we find
that it would be more convenient to be able to use a GIV file, rather
than a PEDIGREE file when trying to formulate the model for estimation
of breeding values (another reason for this is that lines can be used
either as males or females).

So, given a pedigree file, ASREML can apparently deal with clones by
using 'ide' in the model:

Y ~ !f something !r ide(Clone)

I would like to know if, when I output the calculated GIV file for this
run (using !GIV), the matrix of distances will also assume that the
pedigree is of clones? Or will the GIV file be the same as if I had used
a model like this:

Y ~ !f something !r giv(Clone)

Scott c.

Scott Chapman
Plant Industry
Address: 306 Carmody Rd, St. Lucia, QLD 4067, Australia
Ph/fax: +61 7 3214 2254/2950
Received on Sun Mar 14 2005 - 10:59:37 EST

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