1. Online Supplementary Figure 2

2. S.mutabilis subsp. mutabilis DSM 43853 T (X76966) S.mutabilis subsp. capreolus DSM 40225 T (X76965) S. variisporea NRRL B-16296 T (GQ917213) S.espanaensis NRRL B-15764 T AF114807 S.texasensis NRRL B-16134 T AF114814 S. violaceirubra NBRC 102064 T AB284261 S. algeriensis NRRL B-24137 T AY054972 S. australiensis NRRL B-11239 T AF114803 S.xinjiangensis NBRC 101911 T (AB381939) S.syringae NRRL B-16468 T (AF114812) S.coeruleofusca NRRL B-116115 T (AF114805) Actinosynnema pretiosum subsp. auranticum ATCC 31565 T (DQ464900) Lechevalieria.aerocolonigenes NRRL B-3298 T (AF114804) S. longispora NRRL B-116116 T (AF114809) Saccharothrix yanglingensis CGMCC 4.5627 T (GQ284639) 99 80 99 62 38 39 20 16 37 38 24 91 5 Fig. S2-1 Maximum Parsimony tree based on 16S rRNA gene sequences between Saccharothrix yanglingensis sp. nov. and other species of the genus Saccharothrix.

3. Fig. S2- 2 Maximum Likelihood tree based on 16S rRNA gene sequences between Saccharothrix yanglingensis sp. nov. and other species of the genus Saccharothrix. Actinosynnema pretiosum subsp. auranticum ATCC 31565 T (DQ464900) Lechevalieria.aerocolonigenes NRRL B-3298 T (AF114804) S. longispora NRRL B-116116 T (AF114809) Saccharothrix yanglingensis CGMCC 4.5627 T (GQ284639) S.texasensis NRRL B-16134 T AF114814 S. variisporea NRRL B-16296 T (GQ917213) S.espanaensis NRRL B-15764 T AF114807 S.mutabilis subsp. mutabilis DSM 43853 T (X76966) S.mutabilis subsp. capreolus DSM 40225 T (X76965) S.xinjiangensis NBRC 101911 T (AB381939) S.syringae NRRL B-16468 T (AF114812) S.coeruleofusca NRRL B-116115 T (AF114805) S. violaceirubra NBRC 102064 T AB284261 S. australiensis NRRL B-11239 T AF114803 S. algeriensis NRRL B-24137 T AY054972