Determination of Genetic Diversity by Classification of Vegetative Compatibility Groups of Tomato Pathogen Fusarium oxysporum in Aegean Region
Abstract
Tomatoes are one of the widely grown vegetables worldwide. Fusarium oxysporum (Schltdl, 1824) is a pathogen of plants which causes vascular wilt. The phytopathogenic strains cause destructive vascular wilt disease and often limit the production. However, isolates in the same vegetative compatibility group (VCG) are more genetically similar than vegetatively incompatible ones. Therefore, VCG tests are useful to determine genetic diversities or similarities.
Sixty Fusarium oxysporum samples were taken from twenty different regions. Samples were phenotypically identified as Fusarium sp. (Link, 1809) according to microscopic observations and media characteristics. After identification, nitrate non-utilizing (nit) mutants were determined. Then, they were divided into four phenotypic mutant classes and then vegetative compatibility tests are performed.
Six nit1 mutants, six nitM mutants and, five nit3 mutants are found for every district. Sixty-six crossing show that twenty-seven pair of samples are determined as same VCG, thirty-nine couple of samples is defined as different VCG.
According to these results, minimum genetic variants have been found between samples. Our study could help to understand linkages between parasexual recombination and pathogenicity.
This study financially supported by Ege University Scientific Research Projects Coordination Foundation.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Conference Paper
Authors
Tanay Uzgan
*
0000-0003-4784-4393
Türkiye
Yiğit Terzi
0000-0002-8140-7448
Türkiye
Füsun Bahriye Uçar
This is me
0000-0003-2572-7508
Türkiye
Publication Date
December 26, 2019
Submission Date
September 25, 2019
Acceptance Date
December 4, 2019
Published in Issue
Year 2019 Volume: 10 Number: 3
