Figure 5From: Genome-wide identification and evolution of ATP-binding cassette transporters in the ciliate Tetrahymena thermophila: A case of functional divergence in a multigene familyScatter plot of Ka versus Ks. Red dots, pairs of two tandem duplicates; blue dots, pairs of multiple tandem duplicates with a low value of Ks; the dashed line represents Ka = Ks (neutral selection); several pairs with Ks > 3 were omitted.Back to article page