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Inference of single-cell phylogenies from lineage tracing data using Cassiopeia.


ABSTRACT: The pairing of CRISPR/Cas9-based gene editing with massively parallel single-cell readouts now enables large-scale lineage tracing. However, the rapid growth in complexity of data from these assays has outpaced our ability to accurately infer phylogenetic relationships. First, we introduce Cassiopeia-a suite of scalable maximum parsimony approaches for tree reconstruction. Second, we provide a simulation framework for evaluating algorithms and exploring lineage tracer design principles. Finally, we generate the most complex experimental lineage tracing dataset to date, 34,557 human cells continuously traced over 15 generations, and use it for benchmarking phylogenetic inference approaches. We show that Cassiopeia outperforms traditional methods by several metrics and under a wide variety of parameter regimes, and provide insight into the principles for the design of improved Cas9-enabled recorders. Together, these should broadly enable large-scale mammalian lineage tracing efforts. Cassiopeia and its benchmarking resources are publicly available at www.github.com/YosefLab/Cassiopeia.

SUBMITTER: Jones MG 

PROVIDER: S-EPMC7155257 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Inference of single-cell phylogenies from lineage tracing data using Cassiopeia.

Jones Matthew G MG   Khodaverdian Alex A   Quinn Jeffrey J JJ   Chan Michelle M MM   Hussmann Jeffrey A JA   Wang Robert R   Xu Chenling C   Weissman Jonathan S JS   Yosef Nir N  

Genome biology 20200414 1


The pairing of CRISPR/Cas9-based gene editing with massively parallel single-cell readouts now enables large-scale lineage tracing. However, the rapid growth in complexity of data from these assays has outpaced our ability to accurately infer phylogenetic relationships. First, we introduce Cassiopeia-a suite of scalable maximum parsimony approaches for tree reconstruction. Second, we provide a simulation framework for evaluating algorithms and exploring lineage tracer design principles. Finally,  ...[more]

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