Supplementary Material for "Evolution of Chi motifs in Proteobacteria" Angelique Buton & Louis-Marie Bobay Department of Biology, University of North Carolina Greensboro, 321 McIver Street, PO Box 26170, Greensboro, NC 27402, USA Dataset S2. Phylogenetic tree of Proteobacteria in Newick format. ((Lactobacillus_casei:0.409415,(Staphylococcus_saprophyticus:0.322588,Bacillus_cereus:0.222297):0.0905796):0.355552,((Desulfurella_acetivorans:0.623339,(Nautilia_profundicola:0.275632,(((Helicobacter_bilis:0.232478,(Helicobacter_cinaedi:0.0445106,(Helicobacter_typhlonius:0.0578058,Helicobacter_hepaticus:0.0462512):0.0204493):0.127784):0.0482639,(Helicobacter_pylori:0.0394742,Helicobacter_cetorum:0.0239555):0.186494):0.186584,(Sulfurovum_lithotrophicum:0.318386,(((Sulfurospirillum_deleyianum:0.0262568,Sulfurospirillum_barnesii:0.0213087):0.0174184,(Sulfurospirillum_multivorans:0.00453364,Sulfurospirillum_halorespirans:0.00411122):0.0309194):0.163717,((Campylobacter_gracilis:0.20596,((Campylobacter_hyointestinalis:0.0462407,(Campylobacter_iguaniorum:0.0515547,Campylobacter_fetus:0.0428953):0.0176466):0.0824528,(Campylobacter_curvus:0.049874,Campylobacter_concisus:0.052438):0.084134):0.0257132):0.0407562,((Campylobacter_volucris:0.0286445,Campylobacter_lari:0.0233603):0.0537977,(Campylobacter_helveticus:0.0763067,Campylobacter_jejuni:0.0453737):0.0435111):0.0975363):0.0971143):0.0842926):0.0461972):0.0806041):0.460258):0.162982,((((((Desulfovibrio_magneticus:0.248837,(Desulfovibrio_alaskensis:0.269381,(Desulfovibrio_africanus:0.22966,(Desulfovibrio_desulfuricans:0.188983,Desulfovibrio_salexigens:0.179483):0.0780321):0.0351063):0.0337692):0.0672707,Desulfomicrobium_baculatum:0.280791):0.275229,(Desulfococcus_multivorans:0.416695,Desulfobacca_acetoxidans:0.475113):0.0775571):0.0849089,((Geobacter_lovleyi:0.166354,(Geobacter_metallireducens:0.108871,(Geobacter_bemidjiensis:0.127006,(Geobacter_daltonii:0.0647665,Geobacter_uraniireducens:0.101125):0.0609201):0.043529):0.0535798):0.136048,(Pelobacter_carbinolicus:0.197499,Geoalkalibacter_subterraneus:0.235104):0.139915):0.130413):0.0457463,((Halobacteriovorax_marinus:0.706122,Bdellovibrio_exovorus:0.614146):0.151486,(((Melittangium_boletus:0.0392116,Cystobacter_fuscus:0.0346895):0.0609211,(Myxococcus_stipitatus:0.0471004,(Myxococcus_xanthus:0.0622189,(Myxococcus_macrosporus:0.00192359,Myxococcus_fulvus:0.0013707):0.00590608):0.04237):0.0410202):0.345043,(Labilithrix_luteola:0.233672,(Sorangium_cellulosum:0.0963295,Chondromyces_crocatus:0.101917):0.169397):0.30893):0.144507):0.0607578):0.0547299,(((Mariprofundus_aestuarium:0.0566439,Mariprofundus_ferrinatatus:0.0462662):0.476987,((Acidithiobacillus_ferrooxidans:0.0256583,Acidithiobacillus_ferrivorans:0.0277476):0.351518,(((Laribacter_hongkongensis:0.127161,(((Neisseria_lactamica:0.00963285,Neisseria_meningitidis:0.0129019):0.0156017,(Neisseria_sicca:0.000947296,Neisseria_mucosa:0.00108106):0.0168642):0.0290947,Neisseria_elongata:0.0584118):0.195807):0.125147,((((Sulfuritalea_hydrogenivorans:0.148412,(Zoogloeaceae_bacteirum:0.0610985,(Thauera_humireducens:0.0307988,(Thauera_aromatica:0.00829153,Thauera_chlorobenzoica:0.0139702):0.0285228):0.0529434):0.0824337):0.0248478,(Dechlorosoma_suillum:0.0912637,Dechloromonas_aromatica:0.117502):0.0502232):0.0387375,(((((Paraburkholderia_rhizoxinica:0.064072,(((Burkholderia_territorii:0.00314868,((((Burkholderia_contaminans:0.00115324,Burkholderia_lata:0.0052897):0.00215872,((Burkholderia_stabilis:0.00123846,Burkholderia_pyrrocinia:0.00112899):0.0050979,Burkholderia_cenocepacia:0.00310614):0.00107068):0.00348378,((Burkholderia_cepacia:0.00993736,(Burkholderia_ubonensis:0.0051033,Burkholderia_stagnalis:0.00834549):0.00870241):0.00245422,Burkholderia_pseudomultivorans:0.00676905):0.00764612):0.00462518,Burkholderia_diffusa:0.00131827):0.0132919):0.0180974,(Burkholderia_glumae:0.0218955,Burkholderia_plantarii:0.0124225):0.0281355):0.02082,((Paraburkholderia_sprentiae:0.0157903,(Paraburkholderia_phytofirmans:0.0185697,(Paraburkholderia_aromaticivorans:0.00328333,Paraburkholderia_xenovorans:0.00231845):0.00406637):0.00907419):0.0137132,(Paraburkholderia_caribensis:0.00368997,(Paraburkholderia_hospita:0.00532489,Paraburkholderia_terrae:0.00126522):0.0125447):0.0164384):0.0190993):0.031064):0.0358051,(Pandoraea_apista:0.00703526,(((Pandoraea_vervacti:0.00267824,Pandoraea_faecigallinarum:0.00691508):0.00372423,(Pandoraea_oxalativorans:0.00478567,Pandoraea_sputorum:0.00229685):0.00806124):0.00746013,Pandoraea_pnomenusa:0.0124175):0.00395141):0.0763274):0.0369738,(Polynucleobacter_asymbioticus:0.213437,(Cupriavidus_metallidurans:0.0180883,(Cupriavidus_necator:0.00297143,Ralstonia_eutropha:0.00509218):0.0228783):0.070138):0.026612):0.0503104,(Herbaspirillum_seropedicae:0.0577254,(Collimonas_fungivorans:0.0159364,Collimonas_arenae:0.0521848):0.0578301):0.111562):0.0357154,((((Taylorella_asinigenitalis:0.0313213,Taylorella_equigenitalis:0.0332446):0.176923,(Advenella_kashmirensis:0.107156,Advenella_mimigardefordensis:0.00614551):0.0685555):0.0390046,(Alcaligenes_faecalis:0.136054,((Bordetella_flabilis:0.0233605,Bordetella_bronchialis:0.0380012):0.038504,(((Bordetella_bronchiseptica:0.000574703,Bordetella_pertussis:0.00180494):0.0323085,(Bordetella_holmesii:0.0212733,Bordetella_pseudohinzii:0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