1. LIPM, Université de Toulouse, INRA, CNRS, UPS F‐31326 Castanet‐Tolosan Cedex France
2. IRD, Cirad, Univ. Montpellier, IPME Montpellier France
3. Department of Plant Pathology and Microbiology Iowa State University Ames IA 50011 USA
4. Department of Biology Doane University Crete NE 68333 USA
5. IRHS, INRA, AGROCAMPUS‐Ouest, Université d'Angers, SFR 4207 QUASAV 49071 Beaucouzé Cedex France
6. Plant Pathology and Plant‐Microbe Biology Section School of Integrative Plant Science Cornell University Ithaca NY 14853 USA