Phenotypic and genotypic variations between BT×623 and Keller. (a) Comparison between BT×623 and Keller at seedling stage. Bar in (a) is 3 cm. (b) and (c) Cross-sections of BT×623 and Keller leaves at the mid-rib regions under light microscopy (left) and under UV light with epifluorescence (right), respectively. Bars in (b) and (c) are 150 μM. (d) Detected genes with putative functional divergence with either premature stops or Ka/Ks>1. (e) Summary of genes with functional divergence. The venn diagram shows the relationship of divergent genes in their variation types. The blue, green and pink circles indicate the genes with variations from SNP, Indel and SV, respectively. (f) Percentage of genes with Ka/Ks>1 and with low confidence in their annotation. (g) Analysis of expression abundance of genes with functional divergence.