Three genetic groups of the Eucalyptus stem canker pathogen Teratosphaeria zuluensis introduced into Africa from an unknown source

dc.contributor.authorJimu, L.
dc.contributor.authorChen, ShuaiFei
dc.contributor.authorWingfield, Michael J.
dc.contributor.authorMwenje, Eddie
dc.contributor.authorRoux, Jolanda
dc.contributor.emailjolanda.roux@fabi.up.ac.zaen_ZA
dc.date.accessioned2016-04-29T07:24:33Z
dc.date.issued2016-01
dc.description.abstractThe Eucalyptus stem canker pathogen Teratosphaeria zuluensis was discovered in South Africa in 1988 and it has subsequently been found in several other African countries as well as globally. In this study, the population structure, genetic diversity and evolutionary history of T. zuluensis were analysed using microsatellite markers to gain an enhanced understanding of its movement in Africa. Isolates were collected from several sites in Malawi, Mozambique, Uganda and Zambia. Data obtained were compared with those previously published for a South African population. The data obtained from 334 isolates, amplified across eight microsatellite loci, were used for assignment, differentiation and genetic diversity tests. STRUCTURE analyses, θst and genetic distances revealed the existence of two clusters, one dominated by isolates from South Africa and the other by isolates from the Zambezi basin including Malawi, Mozambique and Zambia. High levels of admixture were found within and among populations, dominated by the Mulanje population in Malawi. Moderate to low genetic diversity of the populations supports the previously held view that the pathogen was introduced into Africa. The clonal nature of the Ugandan population suggests a very recent introduction, most likely from southern Africa.en_ZA
dc.description.departmentForestry and Agricultural Biotechnology Institute (FABI)en_ZA
dc.description.departmentMicrobiology and Plant Pathologyen_ZA
dc.description.departmentPlant Production and Soil Scienceen_ZA
dc.description.embargo2017-01-31
dc.description.librarianhb2016en_ZA
dc.description.sponsorshipNational Research Foundation of South Africa (Grant specific unique reference number (UID83924).en_ZA
dc.description.urihttp://link.springer.com/journal/10482en_ZA
dc.identifier.citationJimu, L, Chen, SF, Wingfield, MJ, Mwenje, E & Roux, J 2016, 'Three genetic groups of the Eucalyptus stem canker pathogen Teratosphaeria zuluensis introduced into Africa from an unknown source', Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology, vol. 109, no. 1, pp.21-33.en_ZA
dc.identifier.issn0003-6072 (print)
dc.identifier.issn1572-9699 (online)
dc.identifier.other10.1007/s10482-015-0606-0
dc.identifier.urihttp://hdl.handle.net/2263/52204
dc.language.isoenen_ZA
dc.publisherSpringeren_ZA
dc.rights© Springer International Publishing Switzerland 2015. The original publication is available at : http://link.springer.comjournal/10482.en_ZA
dc.subjectAdmixtureen_ZA
dc.subjectEvolutionary historyen_ZA
dc.subjectMulti-locus genotypeen_ZA
dc.subjectPopulation structureen_ZA
dc.subjectGenetic diversityen_ZA
dc.titleThree genetic groups of the Eucalyptus stem canker pathogen Teratosphaeria zuluensis introduced into Africa from an unknown sourceen_ZA
dc.typePostprint Articleen_ZA

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