RNA velocity unraveled.

Gorin, Gennady; Fang, Meichen; Chari, Tara; Pachter, Lior · PLoS Comput Biol · 2022

basic_science · Level V

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Abstract

We perform a thorough analysis of RNA velocity methods, with a view towards understanding the suitability of the various assumptions underlying popular implementations. In addition to providing a self-contained exposition of the underlying mathematics, we undertake simulations and perform controlled experiments on biological datasets to assess workflow sensitivity to parameter choices and underlying biology. Finally, we argue for a more rigorous approach to RNA velocity, and present a framework for Markovian analysis that points to directions for improvement and mitigation of current problems.

Medical subject headings