The plant pathogen Pseudomonas syringae pv. tomato is genetically monomorphic and under strong selection to evade tomato immunity. oleh Rongman Cai, James Lewis, Shuangchun Yan, Haijie Liu, Christopher R Clarke, Francesco Campanile, Nalvo F Almeida, David J Studholme, Magdalen Lindeberg, David Schneider, Massimo Zaccardelli, Joao C Setubal, Nadia P Morales-Lizcano, Adriana Bernal, Gitta Coaker, Christy Baker, Carol L Bender, Scotland Leman, Boris A Vinatzer