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Título: | The Transcriptome of Verticillium dahliae Responds Differentially Depending on the Disease Susceptibility Level of the Olive (Olea europaea L.) Cultivar |
Autor: | Jiménez-Ruiz, Jaime; Leyva Pérez, M. de la O CSIC; Gómez-Lama Cabanás, Carmen CSIC; Barroso-Albarracín, Juan Bautista CSIC ORCID; Luque, Francisco; Mercado-Blanco, Jesús CSIC ORCID | Palabras clave: | Defoliating pathotype Effectors Pathogenicity RNA-seq Susceptibility Vascular pathogens Verticillium dahliae transcriptome Verticillium wilt of olive |
Fecha de publicación: | 27-mar-2019 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Genes 10(4): 251 (2019) | Resumen: | Among biotic constraints affecting olive trees cultivation worldwide, the soil-borne fungus <i>Verticillium dahliae</i> is considered one of the most serious threats. Olive cultivars display differential susceptibility to the disease, but our knowledge on the pathogen’s responses when infecting varieties differing in susceptibility is scarce. A comparative transcriptomic analysis (RNA-seq) was conducted in olive cultivars Picual (susceptible) and Frantoio (tolerant). RNA samples originated from roots during the first two weeks after inoculation with <i>V. dahliae</i> defoliating (D) pathotype. <i>Verticillium dahliae</i> mRNA amount was overwhelmingly higher in roots of the susceptible cultivar, indicating that proliferation of pathogen biomass is favored in ‘Picual’. A significant larger number of <i>V. dahliae</i> unigenes (11 fold) were only induced in this cultivar. Seven clusters of differentially expressed genes (DEG) were identified according to time-course expression patterns. Unigenes potentially coding for niche-adaptation, pathogenicity, virulence and microsclerotia development were induced in ‘Picual’, while in ‘Frantoio’ expression remained negligible or null. <i>Verticillium dahliae</i> D pathotype transcriptome responses are qualitatively and quantitatively different, and depend on cultivar susceptibility level. The much larger <i>V. dahliae</i> biomass found in ‘Picual’ roots is a consequence of both host and pathogen DEG explaining, to a large extent, the higher aggressiveness exerted over this cultivar. | Versión del editor: | http://dx.doi.org/10.3390/genes10040251 | URI: | http://hdl.handle.net/10261/180707 | DOI: | 10.3390/genes10040251 | ISSN: | 2073-4425 |
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