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ARS Home » Northeast Area » Washington, D.C. » National Arboretum » Floral and Nursery Plants Research » Research » Publications at this Location » Publication #307050

Research Project: NEW AND EMERGING VIRAL AND BACTERIAL DISEASES OF ORNAMENTAL PLANTS: DETECTION, IDENTIFICATION, AND CHARACTERIZATION

Location: Floral and Nursery Plants Research

Title: Genome sequence of a Xylella fastidiosa strain causing sycamore leaf scorch disease in Virginia

Author
item Guan, Wei - Chinese Academy Of Agricultural Sciences
item Shao, Jonathan
item Davis, Robert
item Zhao, Tingehang - Chinese Academy Of Agricultural Sciences
item Huang, Qi

Submitted to: Genome Announcements
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 7/24/2014
Publication Date: 7/21/2014
Citation: Guan, W., Shao, J.Y., Davis, R.E., Zhao, T., Huang, Q. 2014. Genome sequence of a Xylella fastidiosa strain causing sycamore leaf scorch disease in Virginia. Genome Announcements. 2(4):e00773-14.

Interpretive Summary: Xylella fastidiosa is a slow growing, xylem inhabiting, nutritionally fastidious and insect-transmitted bacterium. The bacterium causes bacterial leaf scorch and decline in many economically important landscape trees and shrubs including oak, elm, sycamore, mulberry, and oleander. Although the genome sequences of X. fastidiosa strains in citrus, grapevine, almond, elderberry and oleander have been determined, such information has only been obtained recently for mulberry and oak strains in landscape tree strains. We report here the draft genome sequence for the sycamore strain of X. fastidiosa isolated in 2002 in Virginia from a sycamore tree displaying leaf scorch symptoms. The genome information could provide biological insights into the plasticity, nutritional requirements, pathogenicity, and bacterial-host interactions of the landscape tree strains of X. fastidiosa. It may also be useful in developing specific detection methods for this important bacterium.

Technical Abstract: Xylella fastidiosa causes bacterial leaf scorch in landscape trees including sycamore. We determined the draft genome of X. fastidiosa strain Sy-VA, isolated in Virginia from a sycamore tree displaying leaf scorch symptoms. The Sy-VA genome is 2,477,829 bp in size, and has a GC content of 51.64 mol%.