Ks distributions for gene pairs before and after QUOTA-ALIGN. Quota-based screening for our test cases: (A) A. thaliana - A. lyrata comparison; (B) A. thaliana - poplar comparison. In both cases, gene pairs that are derived from more ancient duplications were eliminated after QUOTA-ALIGN.
Tang et al. BMC Bioinformatics 2011 12:102 doi:10.1186/1471-2105-12-102