Jeff H. Chang

The paper improves genome assemblies for 12 pathogenic and 6 non-pathogenic Streptomyces type strains, revealing genomic features associated with plant pathogenicity.

This study shows abiotic factors modulate exopolysaccharides in Agrobacterium fabrum, affecting T6SS-mediated antagonism by altering physical distance and attack efficacy.

This study identifies Bradyrhizobium sp. USDA3516 as a symbiont of Aeschynomene americana and shows that branched bacteroid morphology is not essential for effective symbiosis.

PathogenSurveillance automates population genomic analyses of WGS data to enable rapid pathogen identification and biosurveillance.

This study uses surveillance and molecular epidemiology to show Melissococcus plutonius is widespread in Michigan beekeeping operations and present year-round, with seasonal infection peaks and genetic diversity within hives.

The paper analyzes genome diversity in Agrobacterium tumefaciens to study the evolution of secretion systems and virulence plasmids, revealing gene losses, horizontal transfers, and modularity in molecular evolution.