BEP clade of the grass family (Poaceae) is composed of three subfamilies, i.e. Bambusoideae, Ehrhartoideae, and Pooideae. Controversies on the phylogenetic relationships among three subfamilies still
Results are given as percentages (stander errors obtained through 1000 bootstrap replicates in parentheses) and results of the Z-test for positive selection.
lnL: log likelihood scores; -2ΔlnL: likelihood ratio test (LRT) to detect positive selection. PAML branch-sie model A analysis to identify branches under episodic positive selection.