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Table 4 Cross-reactivity of the barcode Btk1 qPCR assay against a panel of potential pathogens and environmental contaminants

From: barCoder: a tool to generate unique, orthogonal genetic tags for qPCR detection

DNA templatea

Ctb

Bacillus anthracis Ames35

ND

Bacillus anthracis Sterne 34F2

ND

Bacillus cereus Gibson 971

ND

Bacillus licheniformis Gibson 46

ND

Bacillus megaterium Ford 19

ND

Bacillus sphaericus Ford 25

ND

Bacillus subtilis subsp. subtilis 168

ND

Bacillus thuringiensis serovar kurstaki HD-1

ND

Bacillus thuringiensis subsp. konkukian 97-27

ND

Burkholderia pseudomallei 1026b

ND

Clostridium perfringens WAL-14572

ND

Escherichia coli EDL933

ND

Francisella tularensis subsp. tularensis SCHU S4

ND

Micrococcus luteus SK58

ND

Neisseria meningitidis 9506

ND

Pseudomonas sp. 2_1_26

ND

Salmonella enterica subsp. enterica LT2

ND

Staphylococcus aureus TCH1516

ND

Staphylococcus epidermidis SK135

ND

Streptococcus pneumoniae TCH8431

ND

Vibrio cholerae 395

ND

Yersinia pestis CO92

ND

Barcode Btk1 in Bacillus thuringiensis serovar kurstaki HD-1

23.927

Microbial Mock Community B (Even, High Concentration)

ND

Microbial Mock Community B (Even, High Concentration) + Barcode Btk1 in Bacillus thuringiensis serovar kurstaki HD-1

23.725

Soil DNA extract

ND

Soil DNA extract + Barcode Btk1 in Bacillus thuringiensis serovar kurstaki HD-1

23.969

Negative control (H2O)

ND

  1. ND, not determinable
  2. aqPCR reactions contained 1 ng of each DNA template indicated
  3. bThreshold cycle (Ct) values are the median of three replicates