LRT of 1ω-model vs reverted 2ω-model for individual genes.

and refer to the estimates of non-synonymous/synonymous rate ratios based on the reverted 2ω-model. Only 20 genes rejecting the 1ω-model with P<0.05 are listed. In this analysis, 11 monocot species (6 Poacea species, Typha, Musa, Elaeis, Phalaenopsis, and Yucca) were used. 75 genes were analyzed, but genes with related functions were concatenated if the lengths are shorter than 180 nucleotides, and therefore the number of tests was 61. PS13 refers to the concatenated sequences of petG+petL+petN+psaI+psaJ+psbF+psbI+psbJ+psbK+psbL+psbM+psbN+psbΤ. *refers to a gene which remains significant after the Bonferroni correction. #refers to a gene with ω1<ω0.