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Title: BIOGEOGRAPHY OF THE FUSARIUM SOLANI SPECIES COMPLEX: SAMPLING IN THE SOUTHERN HEMISPHERE

Author
item NALIM, F - PA STATE U, UNIV PK, PA
item Samuels, Gary
item WIJESUNDERA, R - COLOMBO, SRI LANKA
item GEISER, D - PA STATE U, UNIV PK, PA

Submitted to: Mycological Society of America
Publication Type: Abstract Only
Publication Acceptance Date: 5/15/2003
Publication Date: 6/30/2003
Citation: Nalim, F.A., Samuels, G.J., Wijesundera, R.L., Geiser, D.M. Biogeography of the fusarium solani species complex: sampling in the southern hemisphere. Mycological Society of America.Inoculum Vol.54,p.37,2003.

Interpretive Summary:

Technical Abstract: The Fusarium solani species complex is a highly diverse,cosmopolitan group of species lineages with some biogeographic structure. We investigated the phylogenetics of F. solani isolates obtained from non-agricultural soils and perithecia from primary forests in Sri Lanka and other places of Gondwanic origin. Pure cultures of members of the complex were obtained from soil, and from ascospores taken from the perithecial samples. Parts of the translation elongation factor 1-alpha (tef) gene, the nuclear large subunit gene, and the internal transcribed spacer regions (ITS) of the nuclear ribosomal RNA gene were sequenced in over 30 of the isolates. All of the isolates from Sri Lanka were found to be members of newly identified clades in the Fusarium solani species complex, with soil-derived and ascospore isolates forming separate lineages. Correlations between phylogeny and biogeography will be discussed.