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Resolution: standard / high Figure 2.
Quantitative PCR of significantly differentially expressed genes show better agreement
with arrays than sequencing. 192 randomly sampled significantly differently expressed genes were analyzed by
qPCR. qPCR results are highly correlated with both microarrays (R = 0.86, bootstrap
95% CI: 0.7043 – 0.953) (A) and sequencing results (R = .82, bootstrap 95% CI: 0.7031
– 0.8917) (B). However, the subset of the tested genes that were called significantly
differentially expressed by the arrays only (see Fig. 1A, red dots) were more highly
correlated (R = 0.925, bootstrap 95% CI: 0.8621 – 0.9648) (C) than the subset of genes
that were called significant by sequencing (see Fig. 1A, green) (R = 0.518, bootstrap
95% CI: 0.3227 – 0.7069) (D). Error bars represent 95% confidence intervals for the
differential expression measurements.
Bloom et al. BMC Genomics 2009 10:221 doi:10.1186/1471-2164-10-221 |