Resistance to Fusarium head blight in oats based on analyses of multiple field and greenhouse studies

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http://hdl.handle.net/10138/319189

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Hautsalo , J , Jauhiainen , L , Hannukkala , A , Manninen , O , Vetelainen , M , Pietila , L , Peltoniemi , K & Jalli , M 2020 , ' Resistance to Fusarium head blight in oats based on analyses of multiple field and greenhouse studies ' , European Journal of Plant Pathology , vol. 158 , no. 1 , pp. 15-33 . https://doi.org/10.1007/s10658-020-02039-0

Title: Resistance to Fusarium head blight in oats based on analyses of multiple field and greenhouse studies
Author: Hautsalo, Juho; Jauhiainen, Lauri; Hannukkala, Asko; Manninen, Outi; Vetelainen, Merja; Pietila, Leena; Peltoniemi, Kirsi; Jalli, Marja
Contributor: University of Helsinki, Department of Agricultural Sciences
University of Helsinki, Plant Production Sciences
Date: 2020-09
Language: eng
Number of pages: 19
Belongs to series: European Journal of Plant Pathology
ISSN: 0929-1873
URI: http://hdl.handle.net/10138/319189
Abstract: Fusarium head blight (FHB) and the mycotoxins produced by its causal agents in oats (Avena sativaL.) have become a growing problem in northern countries over the last decades. The development of resistant cultivars would offer a highly needed and economical solution to the problem. To tackle the high genotypexenvironment interaction of FHB, a combined analysis was carried out on eight greenhouse and 13 field experiments inoculated with DON-producingFusariumspecies. Our data included 406 oat genotypes consisting of Nordic cultivars, breeding lines and potentially resistant gene bank accessions. High variation in the DON accumulation estimates in the material shows that the selection of genotypes with better resistance would be valuable. The greenhouse and field studies resulted in significantly different oat genotype susceptibility rankings for both DON andFusariuminfected kernels. The results obtained from the field experiments have more practical relevance for farmers and breeders for the identification of DON resistant cultivars than greenhouse screenings. Days to maturity and the plant height of the genotypes both significantly affected theFusariuminfections and DON in the field. The relationship betweenFusariuminfected kernels, DONand germination capacity provide an insight into the composition of genotypes with resistance. The core set of 30 oat genotypes, which were phenotyped in several experiments, provides valuable examples of both highly susceptible and moderately resistant oat genotypes.
Subject: Fusarium resistance
Oats
DON
Phenotyping
Resistance components
Meta-analysis
Mycotoxins
Cereals
DEOXYNIVALENOL
WHEAT
GRAMINEARUM
MYCOTOXINS
TILLAGE
WEATHER
KERNELS
TOXINS
GENES
HT-2
11832 Microbiology and virology
11831 Plant biology
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