New insights into plant natriuretic peptide evolution: From the lysogenic conversion in Xanthomonas to the lateral transfer to the whitefly Bemisia tabaci

•Parallel gains and duplications of plant natriuretic peptide (PNP) in many plant lineages.•Xanthomonas-phage coevolution in favor of bacterial virulence and fitness.•The second example of lateral gene transfer from plant to the whitefly Bemisia tabaci.•The plant natriuretic peptide as a potential Bemisia tabaci effector.•New insights into the role of Lateral Gene Transfer within the host-pathogen arms race.