Additional File 1. Sequence alignments of selected candidate HGTs in S. rosetta used in phylogenetic analysis

Peptide sequences of candidate HGTs were aligned to representative sequences from selected metazoa, eukaryotic, and prokaryotic taxa using MAFFT version 7.候选水平基因转移（Horizontal Gene Transfer, HGT）的肽序列，使用MAFFT 7版本软件，与选定的后生动物、真核生物及原核生物类群的代表性序列进行多序列比对。