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Population genetic analysis corroborates dispersal of Fusarium oxysporum f. sp. radicis-lycopersici from Florida to Europe
Year:
1999
Source of publication :
Phytopathology
Authors :
Katan, Talma
;
.
Volume :
89
Co-Authors:

Rosewich, U.L., Plant Pathology Department, University of Florida, Gainesville, FL 32611, United States, USDA, ARS Cereal Disease Laboratory, University of Minnesota, 1551 Lindig Street, St. Paul, MN 55108, United States
Pettway, R.E., Plant Pathology Department, University of Florida, Gainesville, FL 32611, United States, USDA, ARS Cereal Disease Laboratory, University of Minnesota, 1551 Lindig Street, St. Paul, MN 55108, United States
Katan, T., Department of Plant Pathology, ARO, Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Kistler, H.C., Plant Pathology Department, University of Florida, Gainesville, FL 32611, United States, USDA, ARS Cereal Disease Laboratory, University of Minnesota, 1551 Lindig Street, St. Paul, MN 55108, United States

Facilitators :
From page:
623
To page:
630
(
Total pages:
8
)
Abstract:
Fusarium oxysporum isolates from tomato plants displaying crown and root rot symptoms were collected in central and southern Florida and analyzed using vegetative compatibility grouping (VCG) and nuclear restriction fragment length polymorphism (RFLP) data. VCG 0094 of F. oxysporum f. sp. radicis-lycopersici, previously known only from northwestern Europe, was predominant among 387 isolates assessed. In addition, two newly described VCGs (0098 and 0099) were detected at low frequencies. Floridian VCG 0094 isolates displayed a continuum of compatibilities, which is in contrast to the three distinct subgroups previously identified among European VCG 0094 isolates. RFLP haplotypes were constructed using one repetitive and three low-copy probes. Population subdivision of VCG 0094 from various Floridian counties and from northwestern Europe (Belgium, the Netherlands, and the United Kingdom) was evaluated by analysis of molecular variance. A 'natural' population structure was revealed, differentiating populations from the east and west coasts of Florida. In addition, isolates from Europe were statistically indistinguishable from the Palm Beach County, FL, population. Furthermore, gene diversity among Palm Beach County VCG 0094 isolates was more than five times greater than among European isolates. Results from both VCG and RFLP analyses strongly support the inference that the European VCG 0094 constitutes a founder population that resulted from intercontinental migration of a few isolates from Palm Beach County, FL.
Note:
Related Files :
Dispersal
genetic analysis
haplotype
United States
Vegetative compatibility
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Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30277
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:53
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Scientific Publication
Population genetic analysis corroborates dispersal of Fusarium oxysporum f. sp. radicis-lycopersici from Florida to Europe
89

Rosewich, U.L., Plant Pathology Department, University of Florida, Gainesville, FL 32611, United States, USDA, ARS Cereal Disease Laboratory, University of Minnesota, 1551 Lindig Street, St. Paul, MN 55108, United States
Pettway, R.E., Plant Pathology Department, University of Florida, Gainesville, FL 32611, United States, USDA, ARS Cereal Disease Laboratory, University of Minnesota, 1551 Lindig Street, St. Paul, MN 55108, United States
Katan, T., Department of Plant Pathology, ARO, Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Kistler, H.C., Plant Pathology Department, University of Florida, Gainesville, FL 32611, United States, USDA, ARS Cereal Disease Laboratory, University of Minnesota, 1551 Lindig Street, St. Paul, MN 55108, United States

Population genetic analysis corroborates dispersal of Fusarium oxysporum f. sp. radicis-lycopersici from Florida to Europe
Fusarium oxysporum isolates from tomato plants displaying crown and root rot symptoms were collected in central and southern Florida and analyzed using vegetative compatibility grouping (VCG) and nuclear restriction fragment length polymorphism (RFLP) data. VCG 0094 of F. oxysporum f. sp. radicis-lycopersici, previously known only from northwestern Europe, was predominant among 387 isolates assessed. In addition, two newly described VCGs (0098 and 0099) were detected at low frequencies. Floridian VCG 0094 isolates displayed a continuum of compatibilities, which is in contrast to the three distinct subgroups previously identified among European VCG 0094 isolates. RFLP haplotypes were constructed using one repetitive and three low-copy probes. Population subdivision of VCG 0094 from various Floridian counties and from northwestern Europe (Belgium, the Netherlands, and the United Kingdom) was evaluated by analysis of molecular variance. A 'natural' population structure was revealed, differentiating populations from the east and west coasts of Florida. In addition, isolates from Europe were statistically indistinguishable from the Palm Beach County, FL, population. Furthermore, gene diversity among Palm Beach County VCG 0094 isolates was more than five times greater than among European isolates. Results from both VCG and RFLP analyses strongly support the inference that the European VCG 0094 constitutes a founder population that resulted from intercontinental migration of a few isolates from Palm Beach County, FL.
Scientific Publication
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