Re: BLUPs of mean performance of genotypes
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Re: BLUPs of mean performance of genotypes



Dear Subhash,

I thought Genstat just calculated  mu + BLUP

I do not think 'BLUP of mean performance'is strictly defined.

The new PREDICT statement makes this easy to calculate in ASREML.

Arthur
> X-Authentication-Warning: lamb.arm.li.csiro.au: petidomo set sender to 
asreml-owner@lamb.arm.li.csiro.au using -f
> Date: Mon, 23 Apr 2001 02:25:38 -0700
> From: Chandra S <S.CHANDRA@CGIAR.ORG>
> Subject: BLUPs of mean performance of genotypes
> To: Arthur Gilmour <gilmoua@agric.nsw.gov.au>
> Cc: asreml@chiswick.anprod.csiro.au
> MIME-version: 1.0
> 
> 
> Dear Arthur,
> 
> ASReml provides BLUPs of genotype effects. In a fixed effects model, a
> genotype's mean performance is simply the sum of the BLUE of its effect and
> the GM. In random/mixed models, this simple sum is not the BLUP of a
> genotype's mean performance. It would perhaps good if, in your final
> commercial release of ASReml, you could also provide for directly obtaining
> BLUPs of genotypes' mean performance, as in GenStat. I wonder whether all
> users of ASReml are aware of the way in which the BLUP of mean performance
> are to be obtained from the BLUP of effects!    
> 
> Best regards,
> 
> Subhash :: 23 Apr 2001 
> ___________________________________________________
> Subhash Chandra, DSc
> Senior Scientist (Statistics)
> Genetic Resources and Enhancement Program
> International Crops Research Institute for the Semi-Arid Tropics
> Patancheru - 502 324, AP, India
> 
> Email:        s.chandra@cgiar.org
> Tel:            +91 40 329 6161
> Fax:           +91 40 329 6182
>                   +91 40 324 1239
> Website:     http://www.icrisat.org 
> ___________________________________________________
>     
> 
> 
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<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Arthur Gilmour PhD                  mailto:Arthur.Gilmour@agric.nsw.gov.au
Principal Research Scientist (Biometrics)            fax: <61> 2 6391 3899
NSW Agriculture                                           <61> 2 6391 3922
Orange Agricultural Institute             telephone work: <61> 2 6391 3815
Forest Rd, ORANGE, 2800, AUSTRALIA                  home: <61> 2 6362 0046
                                                   Cargo: <61> 2 6364 3288
Until July 2001, I will be mainly building a house at Cargo.

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