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Population structure of Erysiphe necator on domesticated and wild vines in the Middle East raises questions on the origin of the grapevine powdery mildew pathogen.
Gur, Lior; Reuveni, Moshe; Cohen, Yigal; Cadle-Davidson, Lance; Kisselstein, Breanne; Ovadia, Shmuel; Frenkel, Omer.
Afiliação
  • Gur L; Shamir Research Institute, University of Haifa, Katzrin, Israel.
  • Reuveni M; Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.
  • Cohen Y; Department of Plant Pathology and Weed Research, Agricultural Research Organization (ARO), The Volcani Center, Rishon Lezion, Israel.
  • Cadle-Davidson L; Shamir Research Institute, University of Haifa, Katzrin, Israel.
  • Kisselstein B; Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.
  • Ovadia S; USDA Agricultural Research Service, Geneva, NY, USA.
  • Frenkel O; School of Integrative Plant Sciences, Cornell AgriTech, Geneva, NY, USA.
Environ Microbiol ; 23(10): 6019-6037, 2021 10.
Article em En | MEDLINE | ID: mdl-33459475
Plant pathogens usually originate and diversify in geographical regions where hosts and pathogens co-evolve. Erysiphe necator, the causal agent of grape powdery mildew, is a destructive pathogen of grapevines worldwide. Although Eastern US is considered the centre of origin and diversity of E. necator, previous reports on resistant native wild and domesticated Asian grapevines suggest Asia as another possible origin of the pathogen. By using multi-locus sequencing, microsatellites and a novel application of amplicon sequencing (AmpSeq), we show that the population of E. necator in Israel is composed of three genetic groups: Groups A and B that are common worldwide, and a new group IL, which is genetically differentiated from any known group in Europe and Eastern US. Group IL showed distinguished ecological characteristics: it was dominant on wild and traditional vines (95%); its abundance increased along the season; and was more aggressive than A and B isolates on both wild and domesticated vines. The low genetic diversity within group IL suggests that it has invaded Israel from another origin. Therefore, we suggest that the Israeli E. necator population was founded by at least two invasions, of which one could be from a non-East American source, possibly from Asian origin.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ascomicetos / Vitis Idioma: En Revista: Environ Microbiol Assunto da revista: MICROBIOLOGIA / SAUDE AMBIENTAL Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Israel

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ascomicetos / Vitis Idioma: En Revista: Environ Microbiol Assunto da revista: MICROBIOLOGIA / SAUDE AMBIENTAL Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Israel