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Modeling group heteroscedasticity in single-cell RNA-seq pseudo-bulk data. | LitMetric

AI Article Synopsis

Article Abstract

Group heteroscedasticity is commonly observed in pseudo-bulk single-cell RNA-seq datasets and its presence can hamper the detection of differentially expressed genes. Since most bulk RNA-seq methods assume equal group variances, we introduce two new approaches that account for heteroscedastic groups, namely voomByGroup and voomWithQualityWeights using a blocked design (voomQWB). Compared to current gold-standard methods that do not account for group heteroscedasticity, we show results from simulations and various experiments that demonstrate the superior performance of voomByGroup and voomQWB in terms of error control and power when group variances in pseudo-bulk single-cell RNA-seq data are unequal.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10160736PMC
http://dx.doi.org/10.1186/s13059-023-02949-2DOI Listing

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