Transcriptomics by Single-Cell RNA-Seq 159
unique SNP prole, and thereby identify doublets/ multiplets if mutually
exclusive SNP proles are associated with the same droplet. Among these
tools, demuxlet requires knowledge of genotypic differences between indi-
vidual samples a priori, while the later tools (scSplit, souporcell, and Vireo)
infer genotypic differences from the observed scRNA- seq reads.
To keep the rate of doublets/ multiplets low, the majority of droplets are
empty without any cells. However, ambient RNA molecules in the cell
sample buffer, if exist, can still be captured by empty droplets as well as those
containing cells. Reads generated from droplets associated with only ambient
RNA do not represent real cells and need to ...