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Detection and Characterization of Botrytis cinerea Isolates from Vegetable Crops in Egypt
Abstract
Botrytis cinerea is a necrotrophic plant pathogen that causes plenty of crop losses in Egypt and worldwide. Fifteen isolates of B. cinerea were collected from cabbage, pepper and lettuce grown in different locations in Egypt and subjected to investigation. Diversity in phenotypic, pathological and molecular characteristics was detected among isolates, leading to categorizing them into different groups. Molecular variation was demonstrated in all isolates by transposable elements (TEs) analyses. Four TE types, based on the presence or absence of two transposable elements, boty and flipper, were recognized among B. cinerea isolates in which transposa type (having both TEs, boty + flipper) was predominant (40%), while only boty and only flipper types appeared with distribution values of 26.7 and 20%, respectively and vacuma type (Lacking both TEs) showed the lowest distribution value (13.3%). Furthermore, vacuma population demonstrated the lowest pathogenic potential comparing to others. A correlation was found between TE type and virulence level of isolate, but no impact of TE type was observed on phenotypic characteristics of B. cinerea.
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DOI: 10.33687/phytopath.008.03.2945
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