Sishuo Wang

Molecular clock dating under mixture substitution models indicates contemporaneous emergence of Bradyrhizobium nodulation and legumes anchored by non-symbiotic relatives

The paper uses molecular clock dating with non-symbiotic Bradyrhizobium relatives to show nodulation and legumes emerged around 90-80 million years ago.

The free-living wellspring of symbiotic nitrogen fixation in Bradyrhizobium

This paper identifies free-living Bradyrhizobium as the ancestral state of nitrogen fixation, showing that symbiotic nitrogen fixation evolved multiple times independently from free-living ancestors.

Molecular Clock Dating of Deep-Time Evolution Using Complex Mixture Models

This paper introduces phyloHessian, a tool using complex mixture substitution models to improve molecular clock dating accuracy for deep-time and fast-evolving lineages.

Correlating phylogenetic and functional diversity of the nod-free but nodulating Bradyrhizobium phylogroup

The paper expands the diversity of nod-free Bradyrhizobium strains and shows that NF-independent nodulation is common in this supergroup.

Dating ammonia-oxidizing bacteria with abundant eukaryotic fossils

This study estimates the origin of ammonia-oxidizing bacteria (AOB) using eukaryotic fossils and Bayesian dating, finding they emerged between 2.1 and 1.9 billion years ago.