title: Gall-ID: tools for genotyping gall-causing phytopathogenic bacteria.
abstract: Understanding the population structure and genetic diversity of plant pathogens, as well as the effect of agricultural practices on pathogen evolution, is important for disease management. Developments in molecular methods have contributed to increase the resolution for accurate pathogen identification, but those based on analysis of DNA sequences can be less straightforward to use. To address this, we developed Gall-ID, a web-based platform that uses DNA sequence information from 16S rDNA, multilocus sequence analysis and whole genome sequences to group disease-associated bacteria to their taxonomic units. Gall-ID was developed with a particular focus on gall-forming bacteria belonging to Agrobacterium, Pseudomonas savastanoi, Pantoea agglomerans, and Rhodococcus. Members of these groups of bacteria cause growth deformation of plants, and some are capable of infecting many species of field, orchard, and nursery crops. Gall-ID also enables the use of high-throughput sequencing reads to search for evidence for homologs of characterized virulence genes, and provides downloadable software pipelines for automating multilocus sequence analysis, analyzing genome sequences for average nucleotide identity, and constructing core genome phylogenies. Lastly, additional databases were included in Gall-ID to help determine the identity of other plant pathogenic bacteria that may be in microbial communities associated with galls or causative agents in other diseased tissues of plants. The URL for Gall-ID is http://gall-id.cgrb.oregonstate.edu/.
authors.affiliation: Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States.|Molecular and Cellular Biology Program, Oregon State University, Corvallis, OR, United States.
authors.forename: Edward W
authors.initials: EW
authors.lastname: Davis Ii
authors.affiliation: Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States.
authors.forename: Alexandra J
authors.initials: AJ
authors.lastname: Weisberg
authors.affiliation: Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States.
authors.forename: Javier F
authors.initials: JF
authors.lastname: Tabima
authors.affiliation: Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States.|Molecular and Cellular Biology Program, Oregon State University, Corvallis, OR, United States.|Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, United States.|Horticultural Crops Research Laboratory, USDA-ARS, Corvallis, OR, United States.
authors.forename: Niklaus J
authors.initials: NJ
authors.lastname: Grunwald
authors.affiliation: Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States.|Molecular and Cellular Biology Program, Oregon State University, Corvallis, OR, United States.|Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, United States.
authors.forename: Jeff H
authors.initials: JH
authors.lastname: Chang
keywords: Agrobacterium; Average nucleotide identity; Genomes; Molecular diagnostics; Multilocus sequence analysis; Rhodococcus; Taxonomy