Extended Data Fig. 4: Subgenome biases across DNA, expression and quantitative traits.
From: Genomic mechanisms of climate adaptation in polyploid bioenergy switchgrass

a, Difference in biomass SNP–heritability (h2) estimates between subgenomes for each garden-by-subpopulation combination. Garden-by-subpopulation combinations with empty cells indicate that the model did not converge. b, Subgenome bias for all sets of genome analyses conducted here. Colours indicate the dataset used. c, Counts and ratios used to build b, with longer descriptions of the variables. d, Density distributions of nonsynonymous (Ka), synonymous (Ks) and fourfold-degenerate transversion substation rates (4DTv) for each subgenome relative to P. hallii. e, Summation of the number of genes in each colour bin of f. f, A heat map of expression in which K > N (blue) and N > K (red) is shown for each tissue in the genome-annotation RNA-seq dataset.