Dataset Information

Draft Genome Sequence of a Xylella fastidiosa Strain Causing Bacterial Leaf Scorch of American Elm in Washington, DC.

ABSTRACT: Here, we report the draft genome sequence of Xylella fastidiosa strain ATCC 35873, which was obtained from the American Type Culture Collection and was originally isolated from a symptomatic American elm tree grown in Washington, DC. The ATCC 35873 genome contains 2,454,216 bp and has a GC content of 51.68%.

SUBMITTER: Guan W

PROVIDER: S-EPMC9872675 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Draft Genome Sequence of a Xylella fastidiosa Strain Causing Bacterial Leaf Scorch of American Elm in Washington, DC.

Guan Wei W Shao Jonathan J Zhao Tingchang T Huang Qi Q

Microbiology resource announcements 20221130 1

Here, we report the draft genome sequence of Xylella fastidiosa strain ATCC 35873, which was obtained from the American Type Culture Collection and was originally isolated from a symptomatic American elm tree grown in Washington, DC. The ATCC 35873 genome contains 2,454,216 bp and has a GC content of 51.68%. ...[more]

PMID: 36448819

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Project description:Xylella fastidiosa (Xf) is a globally distributed plant-pathogenic bacterium. The primary control strategy for Xf diseases is eradicating infected plants; therefore, timely and accurate detection is necessary to prevent crop losses and further pathogen dispersal. Conventional Xf diagnostics primarily relies on quantitative PCR (qPCR) assays. However, these methods do not consider new or emerging variants due to pathogen genetic recombination and sensitivity limitations. We developed and tested a metagenomics pipeline using in-house short-read sequencing as a complementary approach for affordable, fast, and highly accurate Xf detection. We used metagenomics to identify Xf to the strain level in single- and mixed-infected plant samples at concentrations as low as 1 pg of bacterial DNA per gram of tissue. We also tested naturally infected samples from various plant species originating from Europe and the United States. We identified Xf subspecies in samples previously considered inconclusive with real-time PCR (quantification cycle [Cq], >35). Overall, we showed the versatility of the pipeline by using different plant hosts and DNA extraction methods. Our pipeline provides taxonomic and functional information for Xf diagnostics without extensive knowledge of the disease. This pipeline demonstrates that metagenomics can be used for early detection of Xf and incorporated as a tool to inform disease management strategies. IMPORTANCE Destructive Xylella fastidiosa (Xf) outbreaks in Europe highlight this pathogen's capacity to expand its host range and geographical distribution. The current disease diagnostic approaches are limited by a multiple-step process, biases to known sequences, and detection limits. We developed a low-cost, user-friendly metagenomic sequencing tool for Xf detection. In less than 3 days, we were able to identify Xf subspecies and strains in field-collected samples. Overall, our pipeline is a diagnostics tool that could be easily extended to other plant-pathogen interactions and implemented for emerging plant threat surveillance.

Dataset Information

Draft Genome Sequence of a Xylella fastidiosa Strain Causing Bacterial Leaf Scorch of American Elm in Washington, DC.

Publications

Draft Genome Sequence of a Xylella fastidiosa Strain Causing Bacterial Leaf Scorch of American Elm in Washington, DC.

Similar Datasets

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