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Table 2 Results from numerical coverage analysis performed by comparing primer and probe sequences from BactQuant and the published qPCR assays against >670,000 16 S rRNA gene sequences from RDP

From: BactQuant: An enhanced broad-coverage bacterial quantitative real-time PCR assay

 

BactQuant

Published qPCR Assay

Coverage Improvement

A. Perfect match using full length primers and probe

Phyla

91.2%

(31/34)

61.8%

(21/34)

+ 29.4%

Genus

96.2%

(1778/1849)

80.3%

(1485/1849)

+15.8%

Species*

83.5%

(74725/89537)

66.3%

(59459/89646)

+17.2%

All Sequences*

78.0%

(524118/671595)

60.9%

(409584/672060)

+17.1%

B. Perfect match using 8-nt primers with full length probe

Phyla

91.2%

(31/34)

67.7%

(23/34)

+23.5%

Genus

97.7%

(1806/1849)

82.1%

(1518/1849)

+15.6%

Species*

89.1%

(79759/89537)

70.9%

(63533/89646)

+18.2%

All Sequences*

84.4%

(566685/671595)

65.6%

(441017/672060)

+18.8%

  1. The in silico analysis was performed using two sequence matching conditions.
  2. *The difference in number of sequences eligible for in silico evaluation is due to the difference in primer lengths and locations of the two assays.