These filtered reads were aligned with GSNAP [ 27] to the human reference genome (GRCh37), binned by annotated gene coordinate, and uniquely aligning reads were summated to generate read count-based gene expression estimates.
The scanned microarray images were normalized using the invariant set scaling method at the probe level, and then model-based gene expression estimates using the Perfect Match (PM) Only Model were obtained using dChip software.
To ensure consistency between the different methodologies used to generate nuclear and cellular data, gene expression estimates were based on all genomic reads, including reads mapping to introns which have been found to accurately predict gene expression levels10, 19.
Specifically, our outlier detection method is based on utilizing the RNA-Seq gene expression estimates as well as DNA and RNA genotypes obtained from the same individual.
In particular, gene expression estimates from more than 1.6 million unannotated bases in 1785 novel transcribed units were obtained.
Many methods now exist that estimate individual isoform estimates, which can then be combined to give accurate gene expression estimates.
Technical noise may be modeled with a log-normal function to adjust gene expression estimates.
They demonstrated that the technique based on gene expression changes can reliably estimate the age of Ae. aegypti mosquitoes.
Therefore, the problem of estimating the gene association network based on gene expression data can be transferred to estimating Σ −1 or selecting nonzero entries in Σ −1.
The limits of estimates based on gene expression have been discussed previously.
