Mixed updating in structured populations.

Mixed updating in structured populations reveals that most unweighted undirected graphs have short fixation times across varying probabilities of death-Birth and Birth-death processes.

• Why it matters: Understanding how population structure influences evolutionary outcomes is crucial for predicting adaptation and genetic diversity, yet the effects of mixed updating rules remain unclear.
• What they did: The study models combined death-Birth and Birth-death updates with a parameter δ on graphs of different structures, analyzing fixation probabilities and times under neutral and selective conditions, and deriving exact formulas for specific graphs.
• The result: Findings show fixation times are generally short and fixation probabilities can vary non-monotonically with δ, enabling efficient estimation methods and insights into the sensitivity of different structures to mixed updating.