Variation in Botryosphaeriaceae from Eucalyptus plantations in YunNan Province in southwestern China across a climatic gradient

Show simple item record Li, Guoqing Slippers, Bernard Wingfield, Michael J. Chen, Shuaifei 2020-11-20T06:22:16Z 2020-11-20T06:22:16Z 2020-12
dc.description.abstract The Botryosphaeriaceae accommodates many important pathogens of woody plants, including Eucalyptus. Recently, Botryosphaeriaceae were isolated from diseased plant parts from surveys of Eucalyptus plantations in the YunNan Province, China. The aims of this study were to identify these Botryosphaeriaceae isolates and to evaluate their pathogenicity to Eucalyptus. A total of 166 isolates of Botryosphaeriaceae were obtained from six regions in the YunNan Province, of which 76 were from Eucalyptus urophylla × E. grandis hybrids, 49 from E. globulus trees, and 41 isolates were from other unknown Eucalyptus species or hybrids. Isolates were identified by comparing DNA sequences of the internal transcribed spacer ribosomal RNA locus (ITS), partial translation elongation factor 1-alpha (tef1), β-tubulin 2 (tub2) and DNA-directed RNA polymerase II subunit (rpb2) genes, and combined with their morphological characteristics. Eleven species were identified, including Botryosphaeria fusispora, B. wangensis, Lasiodiplodia pseudotheobromae, Neofusicoccum kwambonambiense, N. parvum, and six novel species described as B. puerensis, N. dianense, N. magniconidium, N. ningerense, N. parviconidium and N. yunnanense. The dominant species across the regions were N. yunnanense, N. parvum and B. wangensis, representing 31.3, 25.3 and 19.9% of the total isolates, respectively. Species diversity and composition changed across the different climatic zones, despite their relatively close geographic proximity and the fact that some of the species have a global distribution. All the Botryosphaeriaceae species were pathogenic to one-year-old plants of an E. urophylla × E. grandis clone and E. globulus seed-derived plants, but showed significant inter- and intra-species variation in aggressiveness amongst isolates. The study provides a foundation for monitoring and management of Botryosphaeriaceae through selection and breeding of Eucalyptus in the YunNan Province of southwestern China. en_ZA
dc.description.department Biochemistry en_ZA
dc.description.department Drama en_ZA
dc.description.department Forestry and Agricultural Biotechnology Institute (FABI) en_ZA
dc.description.department Genetics en_ZA
dc.description.department Microbiology and Plant Pathology en_ZA
dc.description.librarian pm2020 en_ZA
dc.description.sponsorship National Key R&D Program of China; National Natural Science Foundation of China (NSFC); Guangdong Provincial Science and Technology Project; Top Young Talents Program in National Special Support Program for High-level Talents of China (Ten-thousand Talents Program); Top Young Talents Program in Science and Technology of Guangdong Special Support Program in China. en_ZA
dc.description.uri en_ZA
dc.identifier.citation Li, G., Slippers, B., Wingfield, M.J. et al. 2020, 'Variation in Botryosphaeriaceae from Eucalyptus plantations in YunNan Province in southwestern China across a climatic gradient', IMA Fungus, vol. 11, 1, art. 22, pp. 1-49. en_ZA
dc.identifier.issn 2210-6359 (online)
dc.identifier.other 10.1186/s43008-020-00043-x
dc.language.iso en en_ZA
dc.publisher BioMed Central en_ZA
dc.rights © The Author(s). 2020 Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License. en_ZA
dc.subject Botryosphaeria en_ZA
dc.subject Lasiodiplodia en_ZA
dc.subject Neofusicoccum en_ZA
dc.subject Pathogenicity en_ZA
dc.subject Phylogeny en_ZA
dc.subject Taxonomy en_ZA
dc.title Variation in Botryosphaeriaceae from Eucalyptus plantations in YunNan Province in southwestern China across a climatic gradient en_ZA
dc.type Article en_ZA

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