Original and Corrected Synonymous Nucleotide Substitutions between Collinear Genes (Ks)
ART, Actinidiaceae recent tetraploidization; AAT, Actinidiaceae ancient tetraploidization; ECH, core-eudicot-common hexaploidization; Mya, million years ago. Continuous curves are used to show Ks distribution in a genome, and broken ones are between genomes. (A) Density fitted by using original Ks values; (B) Inferred means; (C) Density fitted by using corrected Ks values; (D) Inferred evolutionary dates.