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Mycelial compatibility reactions of Australian Fusarium graminearum and F. pseudograminearum isolates compared with AFLP groupings

Akinsanmi, O.A. and Backhouse, D. and Simpfendorfer, S. and Chakrabory, S. (2008) Mycelial compatibility reactions of Australian Fusarium graminearum and F. pseudograminearum isolates compared with AFLP groupings. Plant Pathology, 57 (2). pp. 251-261.

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Article Link(s): http://dx.doi.org/10.1111/j.1365-3059.2007.01772.x

Publisher URL: http://www3.interscience.wiley.com/cgi-bin/home

Abstract

Using the mycelial reactions of 435 combinations of 14 Fusarium pseudograminearum and 15 F. graminearum isolates, it was demonstrated for the first time that mycelial reactions/barrage formation cannot be clearly used to distinguish F. graminearum and F. pseudograminearum. Mutually compatible isolates produced very different patterns of compatibility with other isolates. However, about 60% of pairings between F. graminearum and F. pseudograminearum isolates were compatible, indicating common ancestry. The Mantel tests used to determine any possible associations between mycelial compatibility reactions and AFLP genotypic diversity data revealed no association between the two systems in either species. In addition, no association was found between mycelial compatibility reactions and sexual reproduction in the two species. Implications of the higher frequency of mycelial compatibility reactions observed in F. pseudograminearum than in F. graminearum are discussed.

Item Type:Article
Additional Information:© British Society for Plant Pathology.
Keywords:Gibberella coronicola; Gibberella zeae; vegetative diversity; wheat crown rot; wheat head blight; fungal disease; fungus; genotype; species diversity; Fusarium; Fusarium pseudograminearum; Gibberella; Triticum aestivum.
Subjects:Science > Science (General)
Science > Botany > Cryptogams
Plant pests and diseases > Plant pathology
Deposited On:04 Nov 2008 06:54
Last Modified:31 Mar 2011 04:17

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