A global marker database for Phytophthora infestans

Forbes, GA, Goodwin, SB, Drenth, A, Oyarzun, P, Ordonez, ME and Fry, WE (1998) A global marker database for Phytophthora infestans. Plant Disease, 82 7: 811-818.


Author Forbes, GA
Goodwin, SB
Drenth, A
Oyarzun, P
Ordonez, ME
Fry, WE
Title A global marker database for Phytophthora infestans
Journal name Plant Disease   Check publisher's open access policy
ISSN 0191-2917
Publication date 1998
Sub-type Article (original research)
DOI 10.1094/PDIS.1998.82.7.811
Volume 82
Issue 7
Start page 811
End page 818
Total pages 8
Language eng
Abstract A marker database was compiled for isolates of the potato and tomato late blight pathogen, Phytophthora infestans, originating from 41 locations which include 31 countries plus 10 regions within Mexico. Presently, the database contains information on 1,776 isolates for one or more of the following markers: restriction fragment length polymorphism (RFLP) fingerprint consisting of 23 bands; mating type; dilocus allozyme genotype; mitochondrial DNA haplotype; sensitivity to the fungicide metalaxyl; and virulence. In the database, 305 entries have unique RFLP fingerprints and 258 entries have unique multilocus genotypes based on RFLP fingerprint, dilocus allozyme genotype, and mating type. A nomenclature is described for naming multilocus genotypes based on the International Organization for Standardization (ISO) two-letter country code and a unique number, Forty-two previously published multilocus genotypes are represented in the database with references to publications. As a result of compilation of the database, seven new genotypes were identified and named. Cluster analysis of genotypes from clonally propagated populations worldwide generally confirmed a previously published classification of old and new genotypes. Genotypes from geographically distant countries were frequently clustered, and several old and new genotypes were found in two or more distant countries. The cluster analysis also demonstrated that A2 genotypes from Argentina differed from all others. The database is available via the Internet, and thus can serve as a resource for Phytophthora workers worldwide.
Keyword Plant Sciences
Dna Fingerprints
Population Genetics
Rg57
Sexual Reproduction
United-states
North-america
Populations
Migration
Fungus
Dna
Differentiation
Netherlands
Diversity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
 
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Created: Mon, 13 Aug 2007, 10:31:05 EST