Re: Maternal Genetic effects in ASReml-R

From: <arthur.gilmour_at_DPI.NSW.GOV.AU>
Date: Mon, 4 Feb 2008 23:39:19 +1100

Dear ASReml-R users,

Just to summarize private interchange between the developers and Jarrod,

1) Currently the link() syntax in ASReml-R does not accomodate
covariance between say
direct and maternal effects.

2) To properly fit say maternal genetic and maternal environment
(ignoring direct maternal covariance)
   you need to use the ide() wrapper as well as the ped() wrapper.
    ~ ped(animal,var=T) + ped(dam,var=T) + ide(dam,var=T),
     ginverse=list(animal=Gped, dam=Gped)

May Jesus Christ be gracious to you in 2008,

Arthur Gilmour, His servant .
Mixed model regression mapping for QTL detection in experimental crosses.
Computational Statistics and Data Analysis 51:3749-3764 at

Personal website:
Skype: arthur.gilmour,
Principal Research Scientist (Biometrics)
NSW Department of Primary Industries
Orange Agricultural Institute, Forest Rd, ORANGE, 2800, AUSTRALIA
fax: 02 6391 3899; 02 6391 3922 Australia +61
telephone work: 02 6391 3815; home: 02 6364 3288; mobile: 0438 251 426

ASREML 2 is now available from
The ASReml discussion group is at
To join it,
Archives are at

Proposed travel:
UK 28 Jan-8 Feb
USA 11-15 Feb
Argentina 16-19 September Biometrics 
Received on Thu Feb 04 2008 - 23:39:19 EST

This webpage is part of the ASReml-l discussion list archives 2004-2010. More information on ASReml can be found at the VSN website. This discussion list is now deprecated - please use the VSN forum for discussion on ASReml. (These online archives were generated using the hypermail package.)