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Bowling, Sarah; Sritharan, Duluxan; Osorio, Fernando G.; Nguyen, Maximilian; Cheung, Priscilla; Rodriguez-Fraticelli, Alejo; Patel, Sachin; Yuan, Wei-Chien; Fujiwara, Yuko; Li, Bin E.; Orkin, Stuart H.; Hormoz, Sahand; Camargo, Fernando D.
Cell, 06/2020, Volume: 181, Issue: 6Journal Article
Tracing the lineage history of cells is key to answering diverse and fundamental questions in biology. Coupling of cell ancestry information with other molecular readouts represents an important goal in the field. Here, we describe the CRISPR array repair lineage tracing (CARLIN) mouse line and corresponding analysis tools that can be used to simultaneously interrogate the lineage and transcriptomic information of single cells in vivo. This model exploits CRISPR technology to generate up to 44,000 transcribed barcodes in an inducible fashion at any point during development or adulthood, is compatible with sequential barcoding, and is fully genetically defined. We have used CARLIN to identify intrinsic biases in the activity of fetal liver hematopoietic stem cell (HSC) clones and to uncover a previously unappreciated clonal bottleneck in the response of HSCs to injury. CARLIN also allows the unbiased identification of transcriptional signatures associated with HSC activity without cell sorting. Display omitted •CARLIN is a stable, genetically defined mouse line for CRISPR-based lineage tracing•Can be activated at any point to generate 44,000 transcribed barcodes across tissues•Sequential, pulsed induction can be used to determine cellular phylogeny in vivo•Heterogeneity in HSC proliferation following myeloablation revealed CARLIN is a mouse model that allows for simultaneous analysis of lineage and transcriptomic information of single cells in vivo.
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