347-Plasmid Population Dynamics

Paper Talk · Dec 30, 2025 · 16m

This paper presents a research article that investigates the conflicts between different levels of biological organization-specifically, how plasmids (extrachromosomal, self-replicating genetic elements) experience competition both within their host cell (within-cell) and between different host cells (between-cell). The authors use a novel experimental system involving synthetic plasmid dimers, which can be split to initiate balanced within-cell competition, and microfluidic devices (mother machines) to isolate and measure these intracellular dynamics. Key findings show that plasmid…