Correlation of data generated by each amplification method with those generated with unamplified cDNA. Matrix of scatterplots showing the relationship between expression ratios comparing the two different cell lines obtained from amplified and unamplified cDNAs generated using each amplification techniques. The x- and y-axes show virtual M values (normalized average log ratios) measured from unamplified or amplified cDNA. Numbers demonstrate Pearson's correlation coefficients for virtual M-values between pairs of each type of hybridizations. DNA, unamplified cDNA; IVTIII, three rounds of linear T7-based amplification; GA, global polyadenylated PCR-based amplification; SMART, SMART PCR-based amplification; SM37, modified SMART PCR-based amplification.
Subkhankulova and Livesey Genome Biology 2006 7:R18 doi:10.1186/gb-2006-7-3-r18