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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Genetic diversity and pathogenic variability among isolates of Colletotrichum species from strawberry
Year:
2003
Source of publication :
Phytopathology
Authors :
מימון, מרסל
;
.
מינץ, דרור
;
.
פרימן, סטנלי
;
.
Volume :
93
Co-Authors:
Denoyes-Rothan, B., UREFV, INRA, BP 81, 33883 Villenave d'Ornon Cedex, France
Guérin, G., UREFV, INRA, BP 81, 33883 Villenave d'Ornon Cedex, France
Délye, C., Lab. de Malherbologie et Agronomie, INRA, BV 1540, 21034 Dijon Cedex, France
Smith, B., U.S. Dept. of Agric.-Agric. Res. S., Poplarville, MS 39470, United States
Minz, D., Inst. of Soil, Water/Environ. Sci., ARO, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Maymon, M., Department of Plant Pathology, ARO, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Freeman, S., Department of Plant Pathology, ARO, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Facilitators :
From page:
219
To page:
228
(
Total pages:
10
)
Abstract:
Ninety-five isolates of Colletotrichum including 81 isolates of C. acutatum (62 from strawberry) and 14 isolates of C. gloeosporioides (13 from strawberry) were characterized by various molecular methods and pathogenicity tests. Results based on random amplified polymorphic DNA (RAPD) polymorphism and internal transcribed spacer (ITS) 2 sequence data provided clear genetic evidence of two subgroups in C. acutatum. The first subgroup, characterized as CA-clonal, included only isolates from strawberry and exhibited identical RAPD patterns and nearly identical ITS2 sequence analysis. A larger genetic group, CA-variable, included isolates from various hosts and exhibited variable RAPD patterns and divergent ITS2 sequence analysis. Within the C. acutatum population isolated from strawberry, the CA-clonal group is prevalent in Europe (54 isolates of 62). A subset of European C. acutatum isolates isolated from strawberry and representing the CA-clonal and CA-variable groups was assigned to two pathogenicity groups. No correlation could be drawn between genetic and pathogenicity groups. On the basis of molecular data, it is proposed that the CA-clonal subgroup contains closely related, highly virulent C. acutatum isolates that may have developed host specialization to strawberry. C. gloeosporioides isolates from Europe, which were rarely observed were either slightly or nonpathogenic on strawberry. The absence of correlation between genetic polymorphism and geographical origin in Colletotrichum spp. suggests a worldwide dissemination of isolates, probably through international plant exchanges.
Note:
Related Files :
Colletotrichum
Fragaria x ananassa
fungi
Glomerella acutata
Glomerella cingulata
Myxogastria
RDNA
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23063
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:56
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Scientific Publication
Genetic diversity and pathogenic variability among isolates of Colletotrichum species from strawberry
93
Denoyes-Rothan, B., UREFV, INRA, BP 81, 33883 Villenave d'Ornon Cedex, France
Guérin, G., UREFV, INRA, BP 81, 33883 Villenave d'Ornon Cedex, France
Délye, C., Lab. de Malherbologie et Agronomie, INRA, BV 1540, 21034 Dijon Cedex, France
Smith, B., U.S. Dept. of Agric.-Agric. Res. S., Poplarville, MS 39470, United States
Minz, D., Inst. of Soil, Water/Environ. Sci., ARO, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Maymon, M., Department of Plant Pathology, ARO, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Freeman, S., Department of Plant Pathology, ARO, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Genetic diversity and pathogenic variability among isolates of Colletotrichum species from strawberry
Ninety-five isolates of Colletotrichum including 81 isolates of C. acutatum (62 from strawberry) and 14 isolates of C. gloeosporioides (13 from strawberry) were characterized by various molecular methods and pathogenicity tests. Results based on random amplified polymorphic DNA (RAPD) polymorphism and internal transcribed spacer (ITS) 2 sequence data provided clear genetic evidence of two subgroups in C. acutatum. The first subgroup, characterized as CA-clonal, included only isolates from strawberry and exhibited identical RAPD patterns and nearly identical ITS2 sequence analysis. A larger genetic group, CA-variable, included isolates from various hosts and exhibited variable RAPD patterns and divergent ITS2 sequence analysis. Within the C. acutatum population isolated from strawberry, the CA-clonal group is prevalent in Europe (54 isolates of 62). A subset of European C. acutatum isolates isolated from strawberry and representing the CA-clonal and CA-variable groups was assigned to two pathogenicity groups. No correlation could be drawn between genetic and pathogenicity groups. On the basis of molecular data, it is proposed that the CA-clonal subgroup contains closely related, highly virulent C. acutatum isolates that may have developed host specialization to strawberry. C. gloeosporioides isolates from Europe, which were rarely observed were either slightly or nonpathogenic on strawberry. The absence of correlation between genetic polymorphism and geographical origin in Colletotrichum spp. suggests a worldwide dissemination of isolates, probably through international plant exchanges.
Scientific Publication
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