Fig. 3

ML tree based on different datasets. Support values are marked in the form of SH-aLRT/bootstrap value. Support values from low to high corresponds to the gradient color from red to blue. E1, E2, T1, T2, alt, acu, and eic are shorthands for specific clades. The phylogenetic relationships different from that of original tree (2594 OGs) are marked with red dotted lines. a1 Phylogenetic relationships reconstructed from concatenated 2594 OGs, among them, 2037 OGs were considered suitable for phylogenetic analysis by IQ-TREE2, thus a2 was also generated. b Phylogenetic relationship reconstructed by 1594 OGs with relatively low copy number (no topology change). c Phylogenetic relationship reconstructed by 1000 OGs with relatively high copy number