Mean variance of a difference of two genotypic BLUPs

mbakare — Fri, 28 May 2021 15:37:25 GMT

In a field trial established as RCBD, rep is a block effect and gen is a random effect of genotype. The genotypic blups of each genetic line is derived as

proc mixed data= sampledat method=reml;

class rep gen

model yield = rep;

random gen/solution

run;

quit;

The random statement return the genotypic value of each gen.How do I obtain the mean variance of a diiference of two genotypic blups?

Thanks

Re: Mean variance of a difference of two genotypic BLUPs

jiltao — Fri, 28 May 2021 16:52:10 GMT

You can use an ESTIMATE statement in PROC MIXED to compare two genotypes:

estimate 'gen1-gen2' | gen 1 -1;

The predicted difference and the standard error will be produced.

topic Mean variance of a difference of two genotypic BLUPs in Statistical Procedures

Mean variance of a difference of two genotypic BLUPs

Re: Mean variance of a difference of two genotypic BLUPs