Cross-platform comparison of SYBR® Green real-time PCR with TaqMan PCR, microarrays and other gene expression measurement technologies evaluated in the MicroArray Quality Control (MAQC) study

Table 4 Fold-change correlations between SYBR Green RT² Profiler PCR Arrays or TaqMan assays and the five microarray platforms

Correlation (R)	AFX	AG1	ABI	GEH	ILM
(Number of genes in comparison)
PCR Array	0.95 (89)	0.94 (86)	0.90 (89)	0.86 (88)	0.92 (87)
TaqMan*	0.92 (451–472)	0.91 (532–595)	0.85 (523–567)	0.85 (660–670)	0.91 (484–516)

*The average correlation R values and the number of genes in comparison for three sites are derived from the data provided by MAQC studies [12].

ISSN: 1471-2164