F. Freund

The nitrogen-fixing fern Azolla has a complex microbiome characterized by multiple modes of transmission

The paper characterizes the microbiome of the nitrogen-fixing fern Azolla, revealing multiple endosymbionts with varying transmission modes and stages of symbiosis evolution.

Long-term evolution of Streptococcus mitis and Streptococcus pneumoniae leads to higher genetic diversity within rather than between human populations

This study compares genetic diversity within and between populations of Streptococcus mitis and S. pneumoniae, finding higher within-population diversity in S. mitis due to larger effective population size.

Interpreting the pervasive observation of U-shaped Site Frequency Spectra

The paper analyzes site frequency spectra across species and finds U-shaped patterns, suggesting that multiple merger coalescent models better fit the data than the standard neutral model.

Population genomic evidence for a repeated introduction and rapidexpansion in Europe of a maize fungal pathogen

This study uses whole genome sequencing of S. turcica isolates to show that its rapid expansion in Europe since the 1980s reflects maize cultivation growth, not adaptation to resistant varieties.

Distinguishing coalescent models - which statistics matter most?

The paper uses Approximate Bayesian Computation with random forests to identify which statistics best distinguish between coalescent models, introducing a new statistic that improves classification of multiple merger genealogies.

Multiple merger genealogies in outbreaks of Mycobacterium tuberculosis

This study uses Approximate Bayesian Computation to show that multiple merger coalescents better fit Mycobacterium tuberculosis outbreak data than the Kingman coalescent.

Genealogical properties of subsamples in highly fecund populations

The paper analyzes genealogical properties of nested samples in populations with high fecundity and sweepstakes reproduction, comparing informativeness across coalescent processes.

Inferring the evolutionary reduction of corm lobation in Isoëtes using Bayesian model-averaged ancestral state reconstruction

The paper uses Bayesian model-averaged ancestral state reconstruction to infer evolutionary reduction in corm lobation in Isoetes, finding directional reduction and multiple reductions to two lobes.