01651nas a2200193   4500008004100000245012700041210006900168260001600237520097000253100002101223700002301244700002701267700001801294700002701312700002001339700002001359700002101379856005701400       2013                        eng d00aAssessing Differential Expression Measurements by Highly Parallel Pyrosequencing and DNA Microarrays: A Comparative Study.0 aAssessing Differential Expression Measurements by Highly Paralle  c2011 Sep 153 a<p>Abstract To explore the feasibility of pyrosequencing for quantitative differential gene expression analysis we have performed a comparative study of the results of the sequencing experiments to those obtained by a conventional DNA microarray platform. A conclusion from our analysis is that, over a threshold of 35 normalized reads per gene, the measurements of gene expression display a good correlation with the references. The observed concordance between pyrosequencing and DNA microarray platforms beyond the threshold was of 0.8, measured as a Pearson’s correlation coefficient. In differential gene expression the initial aim is the quantification the differences among transcripts when comparing experimental conditions. Thus, even in a scenario of low coverage the concordance in the measurements is quite acceptable. On the other hand, the comparatively longer read size obtained by pyrosequencing allows detecting unconventional splicing forms.</p>1 aAriño, Joaquín1 aCasamayor, Antonio1 aPérez, Julián, Perez1 aPedrola, Laia1 aAlvarez-Tejado, Miguel1 aMarbà, Martina1 aSantoyo, Javier1 aDopazo, Joaquín  uhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3545353/