The pandemic biotype of Austropuccinia psidii discovered in South America

dc.contributor.authorGranados, Ginna Marcela
dc.contributor.authorMcTaggart, Alistair R.
dc.contributor.authorBarnes, Irene
dc.contributor.authorRodas, Carlos A.
dc.contributor.authorRoux, Jolanda
dc.contributor.authorWingfield, Michael J.
dc.date.accessioned2017-07-25T09:08:13Z
dc.date.issued2017-05
dc.description.abstractThe rust fungus Austropuccinia psidii was recently reported from ornamental Corymbia citriodora and plantations of Eucalyptus in Colombia. It is unknown whether the genotypic diversity of the pathogen in Colombia reflects that of other countries in South America or if unique genotypes occur. Multilocus genotypes (MLG) were determined for collections of A. psidii from four host genera, Corymbia, Eucalyptus, Psidium and Syzygium in Colombia and compared to collections from Australia, Brazil, Indonesia, Paraguay and South Africa. The genotypic diversity of 58 samples on 15 genera of Myrtaceae was determined using seven microsatellite markers. Two lineages of A. psidii were detected among Colombian samples. These included a previously unknown genotype on Psidium guajava, different to those sampled from Brazil, as well as the pandemic biotype, which has spread to Pacific countries such as Australia, Hawaii and Indonesia. This is the first time the pandemic biotype of A. psidii has been found in South America where the rust is believed to be native. These findings raise questions with regard to the origin of the pandemic biotype of A. psidii and emphasise the threat that this biotype poses to forestry.en_ZA
dc.description.departmentForestry and Agricultural Biotechnology Institute (FABI)en_ZA
dc.description.departmentGeneticsen_ZA
dc.description.departmentPlant Production and Soil Scienceen_ZA
dc.description.embargo2018-05-16
dc.description.librarianhj2017en_ZA
dc.description.sponsorshipSmurfit Kappa Colombia (SKC), the National Research Foundation (NRF) of South Africa (Grant UID 78566), and members of the Tree Protection Co-operative Program (TPCP) based at the Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa.en_ZA
dc.description.urihttps://link.springer.com/journal/13313en_ZA
dc.identifier.citationGranados, G.M., McTaggart, A.R., Barnes, I., Rodas, C.A., Roux, J. & Wingfield, M.J. The pandemic biotype of Austropuccinia psidii discovered in South America. Australasian Plant Pathology. (2017) 46: 267-275. doi:10.1007/s13313-017-0488-x.en_ZA
dc.identifier.issn1448-6032 (online)
dc.identifier.issn0815-3191 (print)
dc.identifier.other10.1007/s13313-017-0488-x
dc.identifier.urihttp://hdl.handle.net/2263/61430
dc.language.isoenen_ZA
dc.publisherSpringeren_ZA
dc.rights© Australasian Plant Pathology Society Inc. 2017. The original publication is available at : http://link.springer.comjournal/13313.en_ZA
dc.subjectBiosecurityen_ZA
dc.subjectPuccinialesen_ZA
dc.subjectMyrtle rusten_ZA
dc.subjectLong distance dispersalen_ZA
dc.subjectHost adaptationen_ZA
dc.subjectMyrtaceaeen_ZA
dc.subjectMultilocus genotypes (MLG)en_ZA
dc.titleThe pandemic biotype of Austropuccinia psidii discovered in South Americaen_ZA
dc.typePostprint Articleen_ZA

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