# Differential Functional Constraints Cause Strain-Level Endemism in <i>Polynucleobacter</i> Populations

> Research article (mSystems, 2016) · cited 30× · AI/ML

**Wikidata**: [openalex:W2400492924](https://www.wikidata.org/wiki/openalex:W2400492924)  
**Source**: https://4ort.xyz/entity/differential-functional-constraints-cause-strain-level-endemism-in-i-polynucleobacter-i-populations