Specific PCR detection and identification of Xylella fastidiosa strains causing citrus variegated chlorosis
Copyright policy )Specific PCR detection and identification of Xylella fastidiosa strains causing citrus variegated chlorosis
By cloning and sequencing specific randomly amplified polymorphic DNA (RAPD) products, we have developed pairs of PCR primers that can be used to detect Xylella fastidiosa in general, and X. fastidiosa that cause citrus variegated chlorosis (CVC) specifically. We also identified a CVC-specific region of the X. fastidiosa genome that contains a 28-nucleotide insertion, and single base changes that distinguish CVC and grape X. fastidiosa strains. When using RAPD products to develop specific PCR primers, we found it most efficient to screen for size differences among RAPD products rather than presence/absence of a specific RAPD band.
- United States Department of Agriculture United States
- Agricultural Research Service United States
- Henry A. Wallace Beltsville Agricultural Research Center United States
DNA, Bacterial, Citrus, Base Sequence, Molecular Sequence Data, Sequence Analysis, DNA, Random Amplified Polymorphic DNA Technique, Species Specificity, Gram-Negative Bacteria, Cloning, Molecular, DNA Primers, Plant Diseases
DNA, Bacterial, Citrus, Base Sequence, Molecular Sequence Data, Sequence Analysis, DNA, Random Amplified Polymorphic DNA Technique, Species Specificity, Gram-Negative Bacteria, Cloning, Molecular, DNA Primers, Plant Diseases
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