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Breeding oat for resistance to the crown rust pathogen Puccinia coronata f. sp. avenae: achievements and prospects.
Park, R F; Boshoff, W H P; Cabral, A L; Chong, J; Martinelli, J A; McMullen, M S; Fetch, J W Mitchell; Paczos-Grzeda, E; Prats, E; Roake, J; Sowa, S; Ziems, L; Singh, D.
Afiliación
  • Park RF; School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, Australia. robert.park@sydney.edu.au.
  • Boshoff WHP; Department of Plant Sciences, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa.
  • Cabral AL; Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, Canada.
  • Chong J; Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, Canada.
  • Martinelli JA; Department of Crop Science, Agronomy School, Federal University of Rio Grande Do Sul (UFRGS), Av. Bento Gonçalves, 7712, Porto Alegre, RS, 91501-970, Brazil.
  • McMullen MS; Department of Plant Sciences, North Dakota State University, Fargo, ND, 58105-5051, USA.
  • Fetch JWM; Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, Canada.
  • Paczos-Grzeda E; Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, 20-950, Lublin, Poland.
  • Prats E; CSIC-Institute for Sustainable Agriculture, Avda. Menéndez Pidal s/n. , 14004, Córdoba, Spain.
  • Roake J; School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, Australia.
  • Sowa S; Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, 20-950, Lublin, Poland.
  • Ziems L; School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, Australia.
  • Singh D; School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, Australia.
Theor Appl Genet ; 135(11): 3709-3734, 2022 Nov.
Article en En | MEDLINE | ID: mdl-35665827
Crown rust, caused by Puccinia coronata f. sp. avenae (Pca), is a significant impediment to global oat production. Some 98 alleles at 92 loci conferring resistance to Pca in Avena have been designated; however, allelic relationships and chromosomal locations of many of these are unknown. Long-term monitoring of Pca in Australia, North America and elsewhere has shown that it is highly variable even in the absence of sexual recombination, likely due to large pathogen populations that cycle between wild oat communities and oat crops. Efforts to develop cultivars with genetic resistance to Pca began in the 1950s. Based almost solely on all all-stage resistance, this has had temporary benefits but very limited success. The inability to eradicate wild oats, and their common occurrence in many oat growing regions, means that future strategies to control Pca must be based on the assumption of a large and variable prevailing pathogen population with high evolutionary potential, even if cultivars with durable resistance are deployed and grown widely. The presence of minor gene, additive APR to Pca in hexaploid oat germplasm opens the possibility of pyramiding several such genes to give high levels of resistance. The recent availability of reference genomes for diploid and hexaploid oat will undoubtedly accelerate efforts to discover, characterise and develop high throughput diagnostic markers to introgress and pyramid resistance to Pca in high yielding adapted oat germplasm.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Avena País/Región como asunto: Oceania Idioma: En Revista: Theor Appl Genet Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Avena País/Región como asunto: Oceania Idioma: En Revista: Theor Appl Genet Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Alemania