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Relationships between Genetic Diversity and Fusarium Toxin Profiles of Winter Wheat Cultivars.

Góral T, Stuper-Szablewska K, Buśko M, Boczkowska M, Walentyn-Góral D, Wiśniewska H, Perkowski J - Plant Pathol. J. (2015)

Bottom Line: Only B trichothecenes (deoxynivalenol, 3-acetyldeoxynivalenol and nivalenol) produced by F. culmorum in grain samples from inoculated plots were present.The results were used to create of matrices of distance between cultivars - for trichothecene concentration in inoculated and naturally infected grain as well as for FHB resistance Correlations between genetic distance versus resistance/mycotoxin profiles were calculated using the Mantel test.Significant but weak relationships were found between genetic distance matrix and FHB resistance or trichothecene concentration in naturally infected grain matrices.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Pathology, Plant Breeding and Acclimatization Institute - National Research Institute, Radzików, 05-870 Błonie, Poland.

ABSTRACT
Fusarium head blight is one of the most important and most common diseases of winter wheat. In order to better understanding this disease and to assess the correlations between different factors, 30 cultivars of this cereal were evaluated in a two-year period. Fusarium head blight resistance was evaluated and the concentration of trichothecene mycotoxins was analysed. Grain samples originated from plants inoculated with Fusarium culmorum and naturally infected with Fusarium species. The genetic distance between the tested cultivars was determined and data were analysed using multivariate data analysis methods. Genetic dissimilarity of wheat cultivars ranged between 0.06 and 0.78. They were grouped into three distinct groups after cluster analysis of genetic distance. Wheat cultivars differed in resistance to spike and kernel infection and in resistance to spread of Fusarium within a spike (type II). Only B trichothecenes (deoxynivalenol, 3-acetyldeoxynivalenol and nivalenol) produced by F. culmorum in grain samples from inoculated plots were present. In control samples trichothecenes of groups A (H-2 toxin, T-2 toxin, T-2 tetraol, T-2 triol, scirpentriol, diacetoxyscirpenol) and B were detected. On the basis of Fusarium head blight assessment and analysis of trichothecene concentration in the grain relationships between morphological characters, Fusarium head blight resistance and mycotoxins in grain of wheat cultivars were examined. The results were used to create of matrices of distance between cultivars - for trichothecene concentration in inoculated and naturally infected grain as well as for FHB resistance Correlations between genetic distance versus resistance/mycotoxin profiles were calculated using the Mantel test. A highly significant correlation between genetic distance and mycotoxin distance was found for the samples inoculated with Fusarium culmorum. Significant but weak relationships were found between genetic distance matrix and FHB resistance or trichothecene concentration in naturally infected grain matrices.

No MeSH data available.


Related in: MedlinePlus

Discriminant analysis based on Fusarium head blight (FHB), Fusarium damaged kernels (FDK), resistance of type 2 and mycotoxin accumulation in grain (DON, 3AcDON, NIV) of 30 cultivars of winter wheat inoculated with F. culmorum in the years 2010 and 2011. Classes (1, 2, 3) defined by k-means cluster analysis. Cultivar numbers correspond to those in Table 1.
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f4-ppj-31-226: Discriminant analysis based on Fusarium head blight (FHB), Fusarium damaged kernels (FDK), resistance of type 2 and mycotoxin accumulation in grain (DON, 3AcDON, NIV) of 30 cultivars of winter wheat inoculated with F. culmorum in the years 2010 and 2011. Classes (1, 2, 3) defined by k-means cluster analysis. Cultivar numbers correspond to those in Table 1.

Mentions: K-means analysis of data on FHB resistance and mycotoxins content grouped cultivars according to their FHB resistance of different types (Fig. 4, Table 9). Group (class) 1, comprising 12 cultivars, could be characterised by low spike infection, low kernel damage and low Fusarium toxin content in grain. Cultivars in the group 2 had more susceptible spikes and higher kernel damage and accumulated more toxins than cultivars from group 1. The two groups did not differ in resistance of type II. Group 3 comprised the six most susceptible cultivars as regards spike infection and DON accumulation. However, they had similar FDK as cultivars in the group 2.


Relationships between Genetic Diversity and Fusarium Toxin Profiles of Winter Wheat Cultivars.

Góral T, Stuper-Szablewska K, Buśko M, Boczkowska M, Walentyn-Góral D, Wiśniewska H, Perkowski J - Plant Pathol. J. (2015)

Discriminant analysis based on Fusarium head blight (FHB), Fusarium damaged kernels (FDK), resistance of type 2 and mycotoxin accumulation in grain (DON, 3AcDON, NIV) of 30 cultivars of winter wheat inoculated with F. culmorum in the years 2010 and 2011. Classes (1, 2, 3) defined by k-means cluster analysis. Cultivar numbers correspond to those in Table 1.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4564148&req=5

f4-ppj-31-226: Discriminant analysis based on Fusarium head blight (FHB), Fusarium damaged kernels (FDK), resistance of type 2 and mycotoxin accumulation in grain (DON, 3AcDON, NIV) of 30 cultivars of winter wheat inoculated with F. culmorum in the years 2010 and 2011. Classes (1, 2, 3) defined by k-means cluster analysis. Cultivar numbers correspond to those in Table 1.
Mentions: K-means analysis of data on FHB resistance and mycotoxins content grouped cultivars according to their FHB resistance of different types (Fig. 4, Table 9). Group (class) 1, comprising 12 cultivars, could be characterised by low spike infection, low kernel damage and low Fusarium toxin content in grain. Cultivars in the group 2 had more susceptible spikes and higher kernel damage and accumulated more toxins than cultivars from group 1. The two groups did not differ in resistance of type II. Group 3 comprised the six most susceptible cultivars as regards spike infection and DON accumulation. However, they had similar FDK as cultivars in the group 2.

Bottom Line: Only B trichothecenes (deoxynivalenol, 3-acetyldeoxynivalenol and nivalenol) produced by F. culmorum in grain samples from inoculated plots were present.The results were used to create of matrices of distance between cultivars - for trichothecene concentration in inoculated and naturally infected grain as well as for FHB resistance Correlations between genetic distance versus resistance/mycotoxin profiles were calculated using the Mantel test.Significant but weak relationships were found between genetic distance matrix and FHB resistance or trichothecene concentration in naturally infected grain matrices.

View Article: PubMed Central - PubMed

Affiliation: Department of Plant Pathology, Plant Breeding and Acclimatization Institute - National Research Institute, Radzików, 05-870 Błonie, Poland.

ABSTRACT
Fusarium head blight is one of the most important and most common diseases of winter wheat. In order to better understanding this disease and to assess the correlations between different factors, 30 cultivars of this cereal were evaluated in a two-year period. Fusarium head blight resistance was evaluated and the concentration of trichothecene mycotoxins was analysed. Grain samples originated from plants inoculated with Fusarium culmorum and naturally infected with Fusarium species. The genetic distance between the tested cultivars was determined and data were analysed using multivariate data analysis methods. Genetic dissimilarity of wheat cultivars ranged between 0.06 and 0.78. They were grouped into three distinct groups after cluster analysis of genetic distance. Wheat cultivars differed in resistance to spike and kernel infection and in resistance to spread of Fusarium within a spike (type II). Only B trichothecenes (deoxynivalenol, 3-acetyldeoxynivalenol and nivalenol) produced by F. culmorum in grain samples from inoculated plots were present. In control samples trichothecenes of groups A (H-2 toxin, T-2 toxin, T-2 tetraol, T-2 triol, scirpentriol, diacetoxyscirpenol) and B were detected. On the basis of Fusarium head blight assessment and analysis of trichothecene concentration in the grain relationships between morphological characters, Fusarium head blight resistance and mycotoxins in grain of wheat cultivars were examined. The results were used to create of matrices of distance between cultivars - for trichothecene concentration in inoculated and naturally infected grain as well as for FHB resistance Correlations between genetic distance versus resistance/mycotoxin profiles were calculated using the Mantel test. A highly significant correlation between genetic distance and mycotoxin distance was found for the samples inoculated with Fusarium culmorum. Significant but weak relationships were found between genetic distance matrix and FHB resistance or trichothecene concentration in naturally infected grain matrices.

No MeSH data available.


Related in: MedlinePlus