Putative 16S rDNA chimeras detected in the public databases clone clone source acc.no. length parent sequence affiliations and breakpoint in E.coli (and clone) MC24# soil clone MC24 X68474 1075 chimera between 2 Alphaproteo (Acetobacteraceae and Hyphomicrobiaceae); bp E.coli 340 (304) FL1# marine clone FL1 L10934 1298 chimera between SAR11 (alphaproteo) and Acidimicrobidae; bp 1080 (1027) MC19# soil clone MC19 X68454 1063 chimera between Acidimicrobidae and Rubrobacteridae; bp E.coli 530 (500) MC58# soil clone MC58 X68456 1124 chimera between Actinobacteria and Alphaproteo; bp E.coli 715 (677) TM210# peat bog clone TM210 X92704 1348 chimera between 2 Actinos (TM232 and TM226); bp E.coli 500 (447) VC21Arc7# hydrothermal vent clone VC2.1 Arc7 AF068818 1443 chimera between Thermococci and Thermoplasmata; bp E.coli 935 (881) pIVWA101# hydrothermal vent clone pIVWA101 AB019722 1398 chimera between two C1a sequences; bp E.coli 975 (891) BPC066# hydrocarbon seep clone BPC066 AF154095 1505 chimera between Acidobacteria and Chloroflexi; bp E.coli 875 EV103# pasture soil clone EV103 AJ132481 764 chimera between VER-2 and VER-3 EV116# pasture soil clone EV116 AJ132492 748 chimera between VER-2 and VER-3 UASB_TL84# 4MB-degrading consortium clone UASB_TL84 AF254390 1411 chimera between Chloroflexi and deltaproteo; bp E.coli 900 (830) UASB_TL15# 4MB-degrading consortium clone UASB_TL15 AF254406 1430 chimera between OP11 and deltaproteo sequence; bp E.coli 930 YNPFFP89# thermal soil clone YNPFFP89 AF391983 1353 chimera between Acidobacteria and Actinobacteria; bp E.coli 550 BIjii12# waste gas biofilter clone BIjii12 AJ318152 1455 chimera between OP9 and Chloroflexi CL50010# lake clone CL500-10 AF316764 1484 chimera between Chloroflexi and Bacteroidetes SBR1064# sludge clone SBR1064 X84498 1435 chimera between chloroflexi and delta proteo; bp E.coli 1270 SAGMA-3# deep subsurface clone SAGMA-3 AB050234 1410 chimera between two C1 sequences; bp E.coli 520 (440) SAGMA-Z# deep subsurface clone SAGMA-Z AB050231 1410 chimera between two C1 sequences; bp E.coli 720 (638) SAGMA-C# deep subsurface clone SAGMA-C AB050207 1405 chimera between two C1 sequences; 2 bps! 520 & 790 VC21Bac9# hydrothermal vent clone VC2.1Bac9 AF068790 1460 chimera between aquificae and epsilon proteo; bp E.coli 420 (416) VC21Bac7# hydrothermal vent clone VC2.1Bac7 AF068788 1461 chimera between aquificae and epsilon proteo; bp E.coli 420 (414) VC21Bac32# hydrothermal vent clone VC2.1Bac32 AF068806 1450 chimera between epsilon proteo and Aquificae; bp E.coli 1090 (1040) d011# TCE-sediment clone d011 AF422631 1500 chimera between TM6 and Firmicute; bp E.coli 380 Q3-6C1# rhizosphere clone Q3-6C1 AY048894 1476 chimera between Firmicutes and Actinobacteria; bp E.coli 374 (357) AT425_G1# gas hydrate clone AT425_EubG1 AY053495 1536 chimera between OP1? and gammaproteo; bp E.coli 1215 UASB_TL56# 4MB-degrading consortium clone UASB_TL56 AF254405 1483 chimera between deltaproteo and OP8; bp at E.coli 620 BPC043# hydrocarbon seep clone BPC043 AF154080 1519 chimera between Firmicute and OP9; bp 1070 UASB_TL94# 4MB-degrading consortium clone UASB_TL94 AF254401 1473 chimera between OP9 and spirochete; bp E.coli 1080 GCA018# hydrocarbon seep sediment clone GCA018 AF154105 1549 chimera between 2 OP9 sequences; bp E.coli 790 (817) Arc95A-3# marine clone Arctic95A-3 AF355043 1457 chimera between Nitrospina and marine gp A; bp E.coli 675 Arc96AD3# marine clone Arctic96AD-3 AF354607 1502 chimera between Gammaproteo and Gemmatimonadetes; bp E.coli 935 (911) Arc96BD-1# marine clone Arctic96BD-1 AF354605 1494 chimera between 2 Gammaproteobacteria; bp E.coli 615 (585) Arc96AD-24# marine clone Arctic96AD-24 AF354604 1497 chimera between 2 Gammaproteobacteria; bp E.coli 930 (900) Arc96B-6# marine clone Arctic96B-6 AF353224 1429 chimera between 2 Alphaproteobacteria; bp E.coli 530 (445) BA068# benzoate-degrading consortium clone BA068 AF323774 1426 chimera between Chloroflexi and novel group UASBTL17# 4MB-degrading consortium clone UASB_TL17 AF254399 1489 chimera between Caldithrix and Deltaproteo?; bp E.coli 1120 (1109) TA15# terephthalate-degrading consortium clone TA15 AF229788 1419 chimera between 2 deltaproteos; bp E.coli 350 (282) TA09# terephthalate-degrading consortium clone TA09 AF229782 1414 chimera between 2 deltaproteo; bp E.coli 970 (897) TA07# terephthalate-degrading consortium clone TA07 AF229780 1397 chimera between 2 deltaproteo; bp E.coli 790 (705) VC21Bac43# hydrothermal vent clone VC2.1 Bac43 AF068810 1482 chimera between Ferribacter and Epsilonproteo; bp E.coli 675 (665) MNA3# ferromanganous micronodule clone MNA3 AF293013 1494 chimera between Nitrospira and gammaproteo; bp E.coli 930 (915) MNF8# ferromanganous micronodule clone MNF8 AF293012 1505 chimera between Nitrospira and gammaproteo; bp E.coli 1005 (995) MNB2# ferromanganous micronodule clone MNB2 AF293011 1454 chimera between alphaproteo and Nitrospira; bp E.coli 350 (310) MNA5# ferromanganous micronodule clone MNA5 AF293005 1484 chimera between 2 betaproteo; bp E.coli 1165 (1140) MNH4# ferromanganous micronodule clone MNH4 AF293002 1502 chimera between betaproteo and alphaproteo; bp E.coli 550 (541) MNG7# ferromanganous micronodule clone MNG7 AF292997 1446 chimera between 2 alphaproteo; bp E.coli 1030 (969) BD7-9# deep-sea sediment clone BD7-9 AB015584 1482 chimera between epsilon proteo and koll13; bp E.coli 1085 (1055) BD6-4# deep-sea sediment clone BD6-4 AB015574 1500 chimera between 2 gammaproteos; bp E.coli 520 (507) BD3-1# deep-sea sediment clone BD3-1 AB015547 1517 chimera between alpha and gammaproteo; bp E.coli 790 (796) d035# TCE-sediment clone d035 AF422644 1461 chimera between 2 alphaproteobacteria; bp E.coli 283 (259) BPC061# hydrocarbon seep clone BPC061 AF154092 1487 chimera between plancto and acido; bp E.coli 990 (964) BPC005# hydrocarbon seep clone BPC005 AF154090 1519 chimera between deltaproteo and acido; bp E.coli 930 (937) BPC023# hydrocarbon seep clone BPC023 AF154087 1505 chimera between 2 deltaproteo; bp E.coli 1070 (1064) AT425_D5# gas hydrate clone AT425_EubD5 AY053489 1497 chimera between betaproteo and gammaproteo; bp E.coli 555 (541) BIai14# waste gas biofilter clone BIai14 AJ318105 1476 putative chimera between 2 gammaproteos; bp E.coil 1000 44a-U1-12# neutral pH mine biofilm clone 44a-U1-12 AY082475 913 chimera between 2 deltaproteos; bp E.coli 700 44a-B1-1# neutral pH mine biofilm clone 44a-B1-1 AY082456 1448 chimera between delta and epsilon proteo; bp E.coli 520 DA079# grassland soil clone DA079 Y11555 1490 chimera between Actino and Firmicutes; bp E.coli 1205 (1180) BC09# anaerobic digestor clone BC09 AF129864 1459 chimera between Deltaproteo and Firmicute; bp E.coli 250 (240) 3842# soil clone 384-2 AF423257 1472 chimera between Gemmatimonadetes-1 and Acidobacteria-6; bp E.coli 435 (415) B2M68# marine sediment clone B2M68 AF223301 1098 chimera between Gemmatimonadetes and Alphaproteo; bp E.coli 1090 (677) R33# sponge symbiont clone R33 AF333535 858 chimera between Gammaproteo and Gemmatimonadetes; bp E.coli 1195 (660) KS70# mobile mud clone KS70 AF328207 991 chimera between unknown lineage and Gemmatimonadetes; bp E.coli 1040 (520) PpalmC41# vent worm clone P.palmC41 AJ441225 1438 chimera between Bacteroidetes and Victivallis; bp E.coli 240 (210) ZA2615c# bacterioplankton clone ZA2615c AF382109 1497 chimera between Bacteroidetes and Victivallis; bp E.coli 800 (786) M2CM309# Antarctic marine sediment clone MERTZ_2CM_309 AF424224 997 chimera between deltaproteo and Caldithrix; bp E.coli 770 (252)