Characterization of California Isolates of Fusarium oxysporum f. sp. vasinfectum

Plant Disease
Y KimR Michael Davis

Abstract

Thirty isolates of Fusarium oxysporum f. sp. vasinfectum from California, Australia, China, and the American Type Culture Collection were characterized by partial sequences of translational elongation factor (EF-1α), phosphate permase (PHO), and beta-tubulin (BT) genes, restriction digests of the intergenic spacer (IGS) region of nuclear rDNA, and pathogenicity tests. Based on phylogenetic analysis of combined sequences of EF-1α, PHO, and BT genes, California isolates represented four lineages. Lineage I contained race 3, lineage II contained races 1, 2, and 6, lineage III contained race 8, and lineage IV contained race 4. The Australian isolates formed a strongly supported independent clade. There were nine haplotypes based on restriction digests of the IGS region. In greenhouse pathogenicity tests with California isolates, those from the race 4 lineage were highly aggressive on certain Pima cotton (Gossypium barbadense) cultivars and less aggressive on Upland cotton (Gossypium hirsutum) cultivars. All isolates belonging to the other lineages caused relatively mild symptoms on both Pima and Upland cultivars. This is the first report of the occurrence of races 3, 4, and 8 in California.

References

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Citations

Apr 22, 2015·Genetica·Alisher A AbdullaevIbrokhim Y Abdurakhmonov
Jul 22, 2020·G3 : Genes - Genomes - Genetics·Hannah C HalpernMarin T Brewer
Jun 24, 2010·Biosecurity and Bioterrorism : Biodefense Strategy, Practice, and Science·Veronica AnconaPaul de Figueiredo
May 3, 2011·Molecular Genetics and Genomics : MGG·Mauricio UlloaPhilip A Roberts
Jul 17, 2007·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·L A Becerra Lopez-LavalleC L Brubaker
Mar 1, 2014·Journal of Applied Microbiology·A DawidziukM Buśko
Mar 9, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Mauricio UlloaR Michael Davis
Nov 27, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Abdelraheem AbdelraheemJinfa Zhang
Mar 17, 2018·Molecular Plant-microbe Interactions : MPMI·Amjad M HusainiSouliha R Cambay
Oct 8, 2017·Journal of Chemical Ecology·Frankie K CrutcherJinggao Liu
May 11, 2019·Current Opinion in Plant Biology·Kevin L CoxLibo Shan
May 26, 2017·Journal of Agricultural and Food Chemistry·Frankie K CrutcherRobert L Nichols

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