Cell
Volume 178, Issue 4, 8 August 2019, Pages 767-768
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Align to Define: Ecologically Meaningful Populations from Genomes

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Microbes in the same community but with distinct niches can have unique long stretches of perfect sequence identity due to recent genetic exchange. Arevalo et al. (2019) use this as a starting point for defining ecologically-relevant populations within a community and to identify the genes that appear to be driving divergence between populations.

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