Fig. 2
Phylogenetic relationships among homologous sequences of A. ebracteatus, A. ilicifolius, A. tetraploideus, and A. leucostachyus. Phylogenetic trees based on homologous sequences identified according to ratios of 1:1:2:1 (A) and 1:1:1:1 (B) were showed. The ratio of 1:1:2:1 refers to genes for which both homeologs were retained in tetraploid A. tetraploideus. Gene trees in which each homeolog preferentially clusters with the ortholog from one of its putative diploid parents are expected to be the most predominant. The number and percentage of gene groups for each tree-type were presented