stash path to correlation heatmap and table files only if there is data in them, otherwise set them undef, get trait-acronym pairs only if there is correlation output
stash path to correlation heatmap and table files only if there is data in them, otherwise set them undef, get trait-acronym pairs only if there is correlation output

solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn