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Fire Blight: Applied Genomic Insights of the Pathogen and Host

Permanent URL:
http://handle.nal.usda.gov/10113/56784
Abstract:
The enterobacterial phytopathogen Erwinia amylovora causes fire blight, an invasive disease that threatens a wide range of commercial and ornamental Rosaceae host plants. The response elicited by E. amylovora in its host during disease development is similar to the hypersensitive reaction that typically leads to resistance in an incompatible host-pathogen interaction, yet no gene-for-gene resistance has been described for this host-pathogen system. Comparative genomic analysis has found an unprecedented degree of genetic uniformity among strains of E. amylovora, suggesting that the pathogen has undergone a recent genetic bottleneck. The genome of apple, an important host of E. amylovora, has been sequenced, creating new opportunities for the study of interactions between host and pathogen during fire blight development and for the identification of resistance genes. This review includes recent advances in the genomics of both host and pathogen.
Author(s):
Mickael Malnoy , Stefan Martens , John L. Norelli , Marie-Anne Barny , George W. Sundin , Theo H.M. Smits , Brion Duffy
Subject(s):
Erwinia amylovora , Rosaceae , apples , gene-for-gene relationship , genes , genetic resistance , genomics , host plants , host-pathogen relationships , hypersensitive response , plant pathogenic bacteria
Source:
Annual review of phytopathology 2012
Language:
English
Year:
2012
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
File:
Download [PDF File]
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.