Fig. 1

The phylogenetic analysis of SmABCs. Phylogenetic analysis was performed using the identified NBD amino acid sequence of 114 ABC protein in S. miltiorrhiza. The ClustalW program was used to align the amino sequence of all NBDs of the SmABCs, and the phylogenetic analysis was performed. The NJ tree was constructed from the protein sequences of SmABCs using MEGA6 with 1000 bootstrap copies. The Human Genome Organization (HUGO) nomenclature was used to name all the SmABCs. The ABCI subfamily of S. miltiorrhiza was not clustered similar to the ABCA-ABCG subfamilies