Genomic Biosurveillance of the Kiwifruit Pathogen Pseudomonas syringae pv. actinidiae Biovar 3 Reveals Adaptation to Selective Pressures in New Zealand Orchards.

In the late 2000s, a pandemic of Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) devastated kiwifruit orchards growing susceptible, yellow-fleshed cultivars. New Zealand's kiwifruit industry has since recovered, following the deployment of the tolerant cultivar 'Zesy002'.