PES 71180 Scott JB Author's reprint.pdf (544.25 kB)
Multilocus sequence analysis of Fusarium pseudograminearum reveals a single phylogenetic species
Fusarium pseudograminearum causes crown rot of wheat in Australia and most other wheat growing regions, but its evolutionary history is largely unknown. We demonstrate for the first time that F. pseudograminearum is a single phylogenetic species without consistent lineage development across genes. Isolates of F. pseudograminearum, F. graminearum sensu lato, and F. cerealis, were collected from four countries and four single copy, nuclear genes were partially sequenced, aligned with previously published sequences of these and related species, and analysed by maximum parsimony and Bayesian inference. Evolutionary divergence varied between genes, with high phylogenetic incongruence occurring between the gene genealogies. The absence of geographic differentiation between isolates indicates that the introduction of new fungal strains to a region has the potential to introduce new pathogenic and toxigenic genes into the native population through sexual recombination.
History
Publication title
Mycological ResearchVolume
110Issue
12Pagination
1413-1425ISSN
0953-7562Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Cambridge Univ PressPlace of publication
40 West 20Th St, New York, USA, Ny, 10011-4211Rights statement
Copyright © 2006 Cambridge University PressRepository Status
- Open