LAUSR

Pseudomonas syringae pv. actinidiae (Psa) is a quarantine bacterium affecting all the Portuguese main areas of kiwifruit production. We report the draft genome of six Psa strains isolated from symptomatic leaves of Actinidia chinensis cv. deliciosa in a study that determined the genetic population structure of the endophytic and epiphytic populations in two consecutive seasons. Average nucleotide identity (ANI) values were above 99% similarity with reference strains from Psa biovar 3. The genomic differences found between these strains confirm the genetic diversity described for Psa population in Portugal. Furthermore, this data provides evidence that the initial clonal expansion of Psa in Europe was followed by a genomic diversification constituting a valuable resource for epidemiological and evolutionary studies namely when adopting strategies for epidemics management.