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Three new Lasiodiplodia spp. from the tropics, recognized based on DNA sequence comparisons and morphology

     School of Biological Sciences and Biotechnology, Murdoch University, Perth 6150, Australia

Sari Mohali

     Universidad de Los Andes, Facultad de Ciencias, Forestales y Ambientales, Laboratorio de Patologia Forestal, Merida, Venezuela

Geoff Pegg

     Department of Primary Industries and Fisheries, Horticulture and Forestry Science, Indooroopilly, Brisbane 4068, Australia

Wilhelm de Beer
Michael J. Wingfield

     Forestry and Agriculture Biotechnology Institute, University of Pretoria, Pretoria, 0002, Republic of South Africa

Botryosphaeria rhodina (anamorph Lasiodiplodia theobromae) is a common endophyte and opportunistic pathogen on more than 500 tree species in the tropics and subtropics. During routine disease surveys of plantations in Australia and Venezuela several isolates differing from L. theobromae were identified and subsequently characterized based upon morphology and ITS and EF1- nucleotide sequences. These isolates grouped into three strongly supported clades related to but different from the known taxa, B. rhodina and L. gonubiensis, These have been described here as three new species L. venezuelensis sp. nov., L. crassispora sp. nov. and L. rubropurpurea sp. nov. The three could be distinguished easily from each other and the two described species of Lasiodiplodia, thus confirming phylogenetic separations. Furthermore all five Lasiodiplodia spp. now recognized separated from Diplodia spp. and Dothiorella spp. with 100% bootstrap support.

Key words: Botryosphaeria, Diplodia, Dothiorella, Fusicoccum, ITS, molecular phylogenetics, translation elongation factor EF1-

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