Effector profiles of Xanthomonas perforans and X. euvesicatoria provide insights into the evolution of host range and virulence in BLS pathogens

Iruegas-Bocardo Fernanda, Timilsina Sujan, Jibrin Mustafa O., Minsavage Gerald V., Abrahamian Peter, Egel Daniel S., Creswell Tom, Miller Sydney, Rotondo Francesca, Louws Frank John, Adhikari Tushar, Trueman Cheryl L., Roach Rebecca, Coutinho Teresa A., Pruvost Olivier, Nga Nguyen Thi Thu, Luo Laixin, Kebede Misrak, Potnis Neha, Vallad Gary E., Jones Jeffrey B., Goss Erica. 2019. Effector profiles of Xanthomonas perforans and X. euvesicatoria provide insights into the evolution of host range and virulence in BLS pathogens. Phytopathology, 109 (10S), suppl. Plant Health 2019, Résumé : 21-22. American Phytopathological Society 2019 Annual Meeting, Cleveland, États-Unis, 3 Août 2019/7 Août 2019.

Quartile : Q1, Sujet : PLANT SCIENCES

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Xanthomonas perforans (Xp) and X. euvesicatoria (Xe) cause bacterial spot disease (BLS) on tomato and pepper. Symptoms include necrotic lesions on leaves, sepals, and fruits, incurring major crop yield and economic losses worldwide. Xp and Xe have high genome plasticity and recent findings demonstrate a high rate of recombination among them. Xp, which was historically restricted to tomato, has recently been found causing bacterial spot of pepper. The complex host-pathogen interactions of BLS Xanthomonas, known to depend largely on type III effectors (T3E), are not yet fully understood. The content and distribution of T3E were analyzed in a worldwide sample of 269 Xp and 131 Xe strains. The influence of demographic processes, such as geographic location, host and year of collection, on the structure of the effector profiles were examined. Using this broad sample, core and non-core effectors common and unique to each species are described, expanding current knowledge. This is a first step towards identifying the complex demographic processes influencing the distribution of the effectors, hence, the evolution of host range and virulence in BLS strains.

Mots-clés Agrovoc : Xanthomonas, virulence, maladie bactérienne, effecteur moléculaire, évolution, rendement des cultures, génome, phylogénie, recombinaison, pouvoir pathogène, plante fruitière, génie génétique, hôte

Mots-clés géographiques Agrovoc : France, La Réunion

Auteurs et affiliations

• Iruegas-Bocardo Fernanda, University of Florida (USA)
• Timilsina Sujan, University of Florida (USA)
• Jibrin Mustafa O., University of Florida (USA)
• Minsavage Gerald V., University of Florida (USA)
• Abrahamian Peter, University of Florida (USA)
• Egel Daniel S., Purdue University (USA)
• Creswell Tom, Purdue University (USA)
• Miller Sydney, Ohio State University (USA)
• Rotondo Francesca, Ohio State University (USA)
• Louws Frank John, North Carolina State University (USA)
• Adhikari Tushar, North Carolina State University (USA)
• Trueman Cheryl L., University of Guelph (CAN)
• Roach Rebecca, Department of Agriculture and Fisheries (AUS)
• Coutinho Teresa A., University of Pretoria (ZAF)
• Pruvost Olivier, CIRAD-BIOS-UMR PVBMT (REU)
• Nga Nguyen Thi Thu, Can Tho University (VNM)
• Luo Laixin, CAU [China Agricultural University] (CHN)
• Kebede Misrak, Haramaya University (ETH)
• Potnis Neha, Auburn University (USA)
• Vallad Gary E., University of Florida (USA)
• Jones Jeffrey B., University of Florida (USA)
• Goss Erica, University of Florida (USA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/605814/)

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