- Variation in potential effector genes distinguishing Australian and non-Australian isolates of the cotton wilt pathogen Fusarium oxysporum f.sp. vasinfectum
- Plant Pathology
- Volume | Issue number
- 60 | 2
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Swammerdam Institute for Life Sciences (SILS)
This study identified genes that distinguish Australian Fusarium oxysporum f.sp. vasinfectum (Fov) isolates from related co-localized non-pathogenic F. oxysporum isolates and from non-Australian Fov isolates. One gene is a homologue of the F. oxysporum f.sp. lycopersici (Fol) effector gene SIX6, encoding a 215-residue cysteine-rich secreted protein. The Six6 proteins from Fol and Fov contained eight conserved cysteine residues, five of which occurred in the highly diverged 48-amino-acid region where FovSix6 differs from FolSix6 at 32 residues. Two other potential effector genes, PEP1 and PEP2, were identified in a cDNA library of Fov genes expressed during infection of cotton. The presence of FovSIX6 and other differences in DNA fingerprints clearly distinguished Australian Fov isolates from non-Australian Fov isolates and these differences further support the hypothesis based on earlier phylogenetic analysis that Australian Fov is different from Fov in other cotton-growing areas. A specific diagnostic for Fov based on FovSIX6 is described.
- go to publisher's site
If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library, or send a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible.