Genetic recombination in Teratosphaeria destructans causing a new disease outbreak in Malaysia

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dc.contributor.author Havenga, Minette
dc.contributor.author Wingfield, Brenda D.
dc.contributor.author Wingfield, Michael J.
dc.contributor.author Marincowitz, Seonju
dc.contributor.author Dreyer, Leanne Laurette
dc.contributor.author Roets, Francois
dc.contributor.author Japarudin, Yani
dc.contributor.author Aylward, Janneke
dc.date.accessioned 2022-08-31T05:40:25Z
dc.date.available 2022-08-31T05:40:25Z
dc.date.issued 2021-06
dc.description.abstract The Eucalyptus foliar pathogen Teratosphaeria destructans causes severe and widespread damage in South-East Asian and South African plantations. In 2016, leaf blight symptoms resembling those caused by T. destructans were observed in a plantation of a Eucalyptus grandis × E. urophylla hybrid in Sabah, Malaysia. The aims of this study were to confirm the identity of the causal agent as T. destructans and to investigate the genetic structure of isolates associated with this newly detected disease outbreak. Using sequence data of three gene regions, the identity of the pathogen was confirmed as T. destructans. The mating type and microsatellite genotypes of 41 isolates from this Malaysian population were identified and compared with those from previously characterized populations in South-East Asia and South Africa. The Malaysian population had the highest genotypic diversity of any T. destructans population thus far investigated. Both the mating types were found in the collection of isolates, and these were in approximately equal proportions. Although structures linked to a sexual state of the fungus have not been found, sexual reproduction is theoretically possible and could explain the high genetic diversity in the pathogen that must have been accidentally introduced into Malaysia. This is the first record of T. destructans in Sabah and, to the best of our knowledge, in also other parts of Borneo. en_US
dc.description.department Biochemistry en_US
dc.description.department Forestry and Agricultural Biotechnology Institute (FABI) en_US
dc.description.department Genetics en_US
dc.description.department Microbiology and Plant Pathology en_US
dc.description.librarian hj2022 en_US
dc.description.sponsorship The SARChI chair in Fungal Genomics; South African Agency for Science and Technology Advancement, Grant/Award Number: - NRF Centre of Excellence in Tree Health Biotechn; Tree Protection Co- operative program (TPCP); University of Pretoria (UP) Doctoral Research Bursary; National Research Foundation. en_US
dc.description.uri http://www.wileyonlinelibrary.com/journal/efp en_US
dc.identifier.citation Havenga, M., Wingfield, B.D., Wingfield, M.J., et al. Genetic recombination in Teratosphaeria destructans causing a new disease outbreak in Malaysia. Forest Pathology. 2021; 51: e12683. https://doi.org/10.1111/efp.12683. en_US
dc.identifier.issn 1437-4781 (print)
dc.identifier.issn 1439-0329 (online)
dc.identifier.other 10.1111/efp.12683
dc.identifier.uri https://repository.up.ac.za/handle/2263/87010
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.rights © 2021 Wiley-VCH GmbH. This is the pre-peer reviewed version of the following article : Genetic recombination in Teratosphaeria destructans causing a new disease outbreak in Malaysia. Forest Pathology. 2021; 51: e12683. https://doi.org/10.1111/efp.12683. The definite version is available at : http://wileyonlinelibrary.com/journal/efp. en_US
dc.subject Heterothallic en_US
dc.subject Mating type en_US
dc.subject Microsatellite markers en_US
dc.subject Population genetics en_US
dc.subject Sexual reproduction en_US
dc.subject Teratosphaeria destructans en_US
dc.subject Malaysia en_US
dc.title Genetic recombination in Teratosphaeria destructans causing a new disease outbreak in Malaysia en_US
dc.type Postprint Article en_US


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