Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2650
Title: Bacterial wilt resistance in tomato, pepper, and eggplant: genetic resources respond to diverse strains in the ralstonia solanacearum species complex.
Authors: Lebeau, A.
Daunay, M. C.
Frary, Anne
Palloix, A.
Wang, J. F.
Dintinger, J.
Chiroleu, F.
Wicker, E.
Prior, P.
Keywords: Solanacea
Genetic engineering
Vegetation
Issue Date: Jan-2011
Publisher: American Phytopathological Society
Source: Lebeau, A., Daunay, M.C., Frary, A., Palloix, A., Wang, J.F., Dintinger, J., Chiroleu, F., Wicker, E., and Prior, P. (2011). Bacterial wilt resistance in tomato, pepper, and eggplant: Genetic resources respond to diverse strains in the Ralstonia solanacearum species complex. Phytopathology, 101(1), 154-165. doi:10.1094/PHYTO-02-10-0048
Abstract: Bacterial wilt, caused by strains belonging to the Ralstonia solanacearum species complex, inflicts severe economic losses in many crops worldwide. Host resistance remains the most effective control strategy against this disease. However, wilt resistance is often overcome due to the considerable variation among pathogen strains. To help breeders circumvent this problem, we assembled a worldwide collection of 30 accessions of tomato, eggplant and pepper (Core-TEP), most of which are commonly used as sources of resistance to R. solanacearum or for mapping quantitative trait loci. The Core-TEP lines were challenged with a core collection of 12 pathogen strains (Core-Rs2) representing the phylogenetic diversity of R. solanacearum. We observed six interaction phenotypes, from highly susceptible to highly resistant. Intermediate phenotypes resulted from the plants’ ability to tolerate latent infections (i.e., bacterial colonization of vascular elements with limited or no wilting). The Core-Rs2 strains partitioned into three pathotypes on pepper accessions, five on tomato, and six on eggplant. A “pathoprofile” concept was developed to characterize the strain clusters, which displayed six virulence patterns on the whole set of Core-TEP host accessions. Neither pathotypes nor pathoprofiles were phylotype specific. Pathoprofiles with high aggressiveness were mainly found in strains from phylotypes I, IIB, and III. One pathoprofile included a strain that overcame almost all resistance sources.
URI: http://doi.org/10.1094/PHYTO-02-10-0048
http://hdl.handle.net/11147/2650
ISSN: 0031-949X
1943-7684
0031-949X
Appears in Collections:Molecular Biology and Genetics / Moleküler Biyoloji ve Genetik
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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