Abstract
The myrtle rust pathogen, Austropuccinia psidii, was recently detected in New Zealand and Singapore. We used microsatellite markers to identify the strain of A. psidii that caused these incursions. Our results show that the pandemic strain of the pathogen caused outbreaks in both New Zealand and Singapore.
References
Carnegie AJ, Kathuria A, Pegg GS, Entwistle P, Nagel M, Giblin FR (2015) Impact of the invasive rust Puccinia psidii (myrtle rust) on native Myrtaceae in natural ecosystems in Australia. Biol Invasions 18:127–144
du Plessis E, McTaggart AR, Granados GM, Wingfield MJ, Roux J, Ali MIM, Pegg GS, Makinson J, Purcell M (2017) First report of myrtle rust caused by Austropuccinia psidii on Rhodomyrtus tomentosa (Myrtaceae) from Singapore. Plant Dis 101:1676. https://doi.org/10.1094/PDIS-04-17-0530-PDN
Graça RN (2011) Genetic diversity of Puccinia psidii populations. Universidade Federal de Viçosa, Brazil
Graça RN, Ross-Davis AL, Klopfenstein NB, Kim M-S, Peever TL, Cannon PG, Aun CP, Mizubuti ESG, Alfenas AC (2013) Rust disease of eucalypts, caused by Puccinia psidii, did not originate via host jump from guava in Brazil. Mol Ecol 22:6033–6047. https://doi.org/10.1111/mec.12545
Granados GM, McTaggart AR, Barnes I, Rodas CA, Roux J, Wingfield MJ (2017) The pandemic biotype of Austropuccinia psidii discovered in South America. Australas Plant Pathol 46:267–275. https://doi.org/10.1007/s13313-017-0488-x
Jombart T (2008) Adegenet: a R package for the multivariate analysis of genetic markers. Bioinformatics 24:1403–1405. https://doi.org/10.1093/bioinformatics/btn129
Machado PS, Alfenas AC, Alfenas RF, Mohammed CL, Glen M (2015) Microsatellite analysis indicates that Puccinia psidii in Australia is mutating but not recombining. Australas Plant Pathol 44:455–462. https://doi.org/10.1007/s13313-015-0364-5
McTaggart AR, Roux J, Granados GM, Gafur A, Tarrigan M, Santhakumar P, Wingfield MJ (2016) Rust (Puccinia psidii) recorded in Indonesia poses a threat to forests and forestry in South-East Asia. Australas Plant Pathol 45:83–89. https://doi.org/10.1007/s13313-015-0386-z
McTaggart AR, Shuey LS, Granados GM, du Plessis E, Fraser S, Barnes I, Naidoo S, Wingfield MJ, Roux J (2018) Evidence that Austropuccinia psidii may complete its sexual life cycle on Myrtaceae. Plant Pathol 67:729–734. https://doi.org/10.1111/ppa.12763
Ministry of Primary Industries Manatū Ahu Matua (2017) Serious fungal plant disease found on Raoul Island trees. Biosecurity alert. https://www.mpi.govt.nz/news-and-resources/media-releases/serious-fungal-plant-disease-found-on-raoul-island-trees/. Accessed 1st June 2018
Ministry of Primary Industries Manatū Ahu Matua (2018) Myrtle rust update: Wednesday 30th May 2018. https://nzppi.co.nz/documents/pests/Myrtle Rust Stakeholder Update.pdf. Accessed 1st June 2018
Pegg G, Taylor T, Entwistle P, Guymer G, Giblin F, Carnegie A (2017) Impact of Austropuccinia psidii (myrtle rust) on Myrtaceae-rich wet sclerophyll forests in south East Queensland. PLoS One 12:e0188058. https://doi.org/10.1371/journal.pone.0188058
R Core Team (2014) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna
Ross-Davis AL, Graça RN, Alfenas AC, Peever TL, Hanna JW, Uchida JY, Hauff RD, Kadooka CY, Kim MS, Cannon PG, Namba S, Minato N, Simeto S, Pérez CA, Rayamajhi MB, Móran M, Lodge DJ, Arguedas M, Medel-Ortiz R, López-Ramirez A, Tennant P, Glen M, Klopfenstein NB (2014) Tracking the distribution of Puccinia psidii genotypes that cause rust disease on diverse Myrtaceous trees and shrubs. Paper presented at the Proceedings of the 61st Annual Western International Forest Disease Work Conference; 2013, Alberta, Canada
Roux J, Granados GM, Shuey L, Barnes I, Wingfield MJ, McTaggart AR (2016) A unique genotype of the rust pathogen, Puccinia psidii, on Myrtaceae in South Africa. Australas Plant Pathol 45:645–652. https://doi.org/10.1007/s13313-016-0447-y
Soewarto J, Carriconde F, Hugot N, Bocs S, Hamelin C, Maggia L (2017) Impact of Austropuccinia psidii in New Caledonia, a biodiversity hotspot. For Pathol 48:e12402. https://doi.org/10.1111/efp.12402
Stewart JE, Ross-Davis AL, Graҫa RN, Alfenas AC, Peever TL, Hanna JW, Uchida JY, Hauff RD, Kadooka CY, Kim MS, Cannon PG, Namba S, Simeto S, Pérez CA, Rayamajhi MB, Lodge DJ, Arguedas M, Medel-Ortiz R, López-Ramirez MA, Tennant P, Glen M, Machado PS, McTaggart AR, Carnegie AJ, Klopfenstein NB (2017) Genetic diversity of the myrtle rust pathogen (Austropuccinia psidii) in the Americas and Hawaii: global implications for invasive threat assessments. For Pathol 48:e12378. https://doi.org/10.1111/efp.12378
Zhong S, Yang B, Alfenas AC (2008) Permanent genetic resources: development of microsatellite markers for the guava rust fungus, Puccinia psidii. Mol Ecol Resour 8:348–350. https://doi.org/10.1111/j.1471-8286.2007.01952.x
Acknowledgements
This work is based on research partially supported by the Tree Protection Co-operative Programme (TPCP) and the National Research Foundation of South Africa (Grant specific unique reference numbers UID 78566 and UID 83924) and the DST-NRF Centre of Excellence in Tree Health Biotechnology (CTHB). The grant holders acknowledge that opinions, findings and conclusions or recommendations expressed in any publication generated by NRF supported research are that of the authors and that the NRF accepts no liability whatsoever in this regard. ARM acknowledges the University of Queensland Development Fellowships (UQFEL1718905) and support from the Department of the Environment and Energy under the Australian Biological Resources Study (grant number RG18-43). WHH and BJRA acknowledge the support from the Ministry for Primary Industries (MPI) Plant Health and Environment Laboratory and the MPI Myrtle Rust Response Team. We thank a Reviewer for their improvements to the final manuscript.
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du Plessis, E., Granados, G.M., Barnes, I. et al. The pandemic strain of Austropuccinia psidii causes myrtle rust in New Zealand and Singapore. Australasian Plant Pathol. 48, 253–256 (2019). https://doi.org/10.1007/s13313-019-0624-x
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DOI: https://doi.org/10.1007/s13313-019-0624-x