PMID- 26763626 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20221207 IS - 2045-8827 (Electronic) IS - 2045-8827 (Linking) VI - 5 IP - 1 DP - 2016 Feb TI - Development of new host-specific Bacteroides qPCRs for the identification of fecal contamination sources in water. PG - 83-94 LID - 10.1002/mbo3.313 [doi] AB - Bacteroides spp. have been proposed as indicators of fecal contamination in microbial source tracking (MST) methodologies. The aim of this study was to develop new qPCR assays that target host-specific Bacteroidal 16S ribosomal RNA genes, to determine the source of fecal contamination in water. Denaturing gradient gel electrophoresis (DGGE) was used to select for host-specific bands of Bacteroides associated with a fecal pollution source and later to design four qPCR host-specific assays. A set of common primers for Bacteroides spp., four different Bacteroides spp. host-associated hydrolysis probes (human, cattle, pig, and poultry), and one hydrolysis probe for the Bacteroides genus were designed. This set of qPCR assays together with other previously developed Bacteroidetes MST targets were used to analyze water samples with fecal contamination from the four sources studied. The host-specific Bacteroides qPCRs designed for human (HMprobeBac), pig (PGprobeBac), and poultry (PLprobeBac) were highly specific for its sources (1.0, 0.97, and 1.0, respectively) although its sensitivity was lower (0.45, 0.50, and 0.73, respectively). The cattle-specific qPCR was totally unspecific and was discarded for future experiments. When compared to previously designed assays, the human and pig qPCRs showed better accuracies (0.86 and 0.84) than their counterparts HF183 and Pig-2-Bac (0.38 and 0.65). Thus, the newly designed human, pig, and poultry qPCR assays outperform other methods developed until date and may be useful for source tracking purposes. CI - (c) 2015 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd. FAU - Gomez-Donate, Marta AU - Gomez-Donate M AD - Department of Microbiology, University of Barcelona, Diagonal 643, Barcelona, Catalonia, 08028, Spain. FAU - Casanovas-Massana, Arnau AU - Casanovas-Massana A AD - Department of Microbiology, University of Barcelona, Diagonal 643, Barcelona, Catalonia, 08028, Spain. FAU - Muniesa, Maite AU - Muniesa M AD - Department of Microbiology, University of Barcelona, Diagonal 643, Barcelona, Catalonia, 08028, Spain. FAU - Blanch, Anicet R AU - Blanch AR AD - Department of Microbiology, University of Barcelona, Diagonal 643, Barcelona, Catalonia, 08028, Spain. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160114 PL - England TA - Microbiologyopen JT - MicrobiologyOpen JID - 101588314 RN - 0 (DNA, Bacterial) RN - 0 (RNA, Ribosomal, 16S) RN - 0 (Waste Water) SB - IM MH - Animals MH - Bacteroides/*classification/*genetics/isolation & purification MH - Cattle MH - Chickens MH - Coliphages/isolation & purification MH - DNA, Bacterial/genetics MH - Denaturing Gradient Gel Electrophoresis/methods MH - Environmental Monitoring/*methods MH - Escherichia coli/isolation & purification MH - Feces/*microbiology MH - Humans MH - RNA, Ribosomal, 16S/genetics MH - Real-Time Polymerase Chain Reaction/*methods MH - Sequence Alignment MH - Swine MH - Wastewater/*microbiology MH - Water Microbiology MH - Water Pollution/*analysis PMC - PMC4767429 OTO - NOTNLM OT - Bacteroides OT - DGGE OT - microbial source tracking OT - quantitative PCR EDAT- 2016/01/15 06:00 MHDA- 2016/12/15 06:00 PMCR- 2016/01/14 CRDT- 2016/01/15 06:00 PHST- 2015/07/03 00:00 [received] PHST- 2015/10/06 00:00 [revised] PHST- 2015/10/13 00:00 [accepted] PHST- 2016/01/15 06:00 [entrez] PHST- 2016/01/15 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] PHST- 2016/01/14 00:00 [pmc-release] AID - MBO3313 [pii] AID - 10.1002/mbo3.313 [doi] PST - ppublish SO - Microbiologyopen. 2016 Feb;5(1):83-94. doi: 10.1002/mbo3.313. Epub 2016 Jan 14.