scRNA-seq for Microcephaly Research [II]: Preparation of Single-Cell cDNA Libraries.

Droplet-based single-cell RNA-seq (scRNA-seq) requires the addition of bar codes that mark the cell and transcript of origin. Cell-specific bar codes, typically added by cDNA elongation on beads, label each transcript derived from an individual cell. Transcript-specific bar codes serve as unique molecular identifiers and allow for the maintenance of transcript proportions after PCR-based amplification of cDNA. This chapter provides methods for generating bar-coded scRNA-seq libraries after droplet encapsulation.