Your browser doesn't support javascript.
loading
Loss of AvrSr50 by somatic exchange in stem rust leads to virulence for Sr50 resistance in wheat.
Chen, Jiapeng; Upadhyaya, Narayana M; Ortiz, Diana; Sperschneider, Jana; Li, Feng; Bouton, Clement; Breen, Susan; Dong, Chongmei; Xu, Bo; Zhang, Xiaoxiao; Mago, Rohit; Newell, Kim; Xia, Xiaodi; Bernoux, Maud; Taylor, Jennifer M; Steffenson, Brian; Jin, Yue; Zhang, Peng; Kanyuka, Kostya; Figueroa, Melania; Ellis, Jeffrey G; Park, Robert F; Dodds, Peter N.
Afiliação
  • Chen J; Plant Breeding Institute, School of Life and Environmental Sciences, University of Sydney, Cobbitty, NSW, Australia.
  • Upadhyaya NM; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Ortiz D; Judith and David Coffey Life Lab, Charles Perkins Centre, University of Sydney.
  • Sperschneider J; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Li F; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Bouton C; Centre for Environment and Life Sciences, Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Perth, WA, Australia.
  • Breen S; Department of Plant Pathology and The Stakman-Borlaug Center for Sustainable Plant Health, University of Minnesota, St. Paul, MN, USA.
  • Dong C; Biointeractions and Crop Protection, Rothamsted Research, Harpenden, AL5 2JQ, UK.
  • Xu B; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Zhang X; Plant Breeding Institute, School of Life and Environmental Sciences, University of Sydney, Cobbitty, NSW, Australia.
  • Mago R; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Newell K; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Xia X; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Bernoux M; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Taylor JM; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Steffenson B; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Jin Y; Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, Australia.
  • Zhang P; Department of Plant Pathology and The Stakman-Borlaug Center for Sustainable Plant Health, University of Minnesota, St. Paul, MN, USA.
  • Kanyuka K; Department of Plant Pathology and The Stakman-Borlaug Center for Sustainable Plant Health, University of Minnesota, St. Paul, MN, USA.
  • Figueroa M; United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Cereal Disease Laboratory, St. Paul, MN, USA.
  • Ellis JG; Plant Breeding Institute, School of Life and Environmental Sciences, University of Sydney, Cobbitty, NSW, Australia.
  • Park RF; Biointeractions and Crop Protection, Rothamsted Research, Harpenden, AL5 2JQ, UK.
  • Dodds PN; Department of Plant Pathology and The Stakman-Borlaug Center for Sustainable Plant Health, University of Minnesota, St. Paul, MN, USA.
Science ; 358(6370): 1607-1610, 2017 12 22.
Article em En | MEDLINE | ID: mdl-29269475
ABSTRACT
Race-specific resistance genes protect the global wheat crop from stem rust disease caused by Puccinia graminis f. sp. tritici (Pgt) but are often overcome owing to evolution of new virulent races of the pathogen. To understand virulence evolution in Pgt, we identified the protein ligand (AvrSr50) recognized by the Sr50 resistance protein. A spontaneous mutant of Pgt virulent to Sr50 contained a 2.5 mega-base pair loss-of-heterozygosity event. A haustorial secreted protein from this region triggers Sr50-dependent defense responses in planta and interacts directly with the Sr50 protein. Virulence alleles of AvrSr50 have arisen through DNA insertion and sequence divergence, and our data provide molecular evidence that in addition to sexual recombination, somatic exchange can play a role in the emergence of new virulence traits in Pgt.
Assuntos
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doenças das Plantas / Basidiomycota / Triticum / Resistência à Doença Idioma: En Ano de publicação: 2017 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doenças das Plantas / Basidiomycota / Triticum / Resistência à Doença Idioma: En Ano de publicação: 2017 Tipo de documento: Article