Fig. 2
From: Divergence and evolution of cotton bHLH proteins from diploid to allotetraploid
Differences in the expression of A- and D- homoeologous genes in G. hirsutum. Only 123 pairs of bHLH genes are presented here (significance was set at P < 0.01, FDR < 0.05 and at least two fold differences in average expression levels). 1, At > Dt indicated biased expression of the A homoeologs; 2, At = Dt indicated similar expression of the At and Dt homoeologs; 3, Dt > At indicated biased expression of the D homoeologs