Plant Pathology (2015) 64, 890-900

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C. Trapero, L. Rallo, F.J. López-Escudero, D. Barranco and C.M. Díez (2015)
Variability and selection of verticillium wilt resistant genotypes in cultivated olive and in the Olea genus
Plant Pathology 64 (4), 890-900
Abstract: Developing verticillium wilt resistant genotypes is currently a major objective in olive breeding. In this study, 6017 genotypes derived from 48 crosses obtained by open pollination and crosses between olive cultivars, wild olive genotypes and other Olea species and Olea europaea subspecies were individually evaluated for verticillium wilt resistance. More than 800 genotypes were identified as resistant to the disease based on the absence of symptoms. High genetic variability and wide segregation in resistance were observed. The inheritance of resistance was studied, and the best parents and crosses to breed resistant genotypes were identified. According to the results, verticillium wilt resistance in olive appears to be a quantitative trait. The results obtained by comparing the level of resistance between different crosses as well as by estimating heritability suggest that it is possible to breed for verticillium wilt resistance in olive.
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Link to article at publishers website
Database assignments for author(s): Carlos Trapero

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Verticillium dahliae Olive (Olea europaea)