A new study finds that the choice of RNA quantification method affects the reproducibility of eQTL analysis, colocalization, and transcriptome-wide association studies.

What it means

This Nature Genetics paper asks whether the way RNA-seq data are processed into gene or transcript expression measurements—the quantification method—changes the results of downstream statistical genetics analyses: eQTL mapping, colocalization, and transcriptome-wide association studies (TWAS). The stated finding is that quantification choice does matter: it affects which genetic associations and gene-trait links are detected and how well those findings replicate across datasets, making it a substantive source of variability rather than a purely technical detail.

Accuracy & sourcesSourced