Abstract
A correlation of the sensitivity to infection with phytopathogens and dynamics of its development with a difference in the plant epigenome, which is estimated by DNA methylation profiles, was studied on two varieties of winter wheat (Podolyanka and Favoritka) of the 2013–2017 harvests. It was demonstrated that fast-germinated seedlings of the Podolyanka variety wheat show a high disease resistance (unlike slowly germinating seedlings). No such effect is observed on the plants of the Favoritka variety wheat. The estimation of changes in epigenetic distance of the studied varieties by years indicates steadily high rate for the Podolyanka variety and a low one for the Favoritka variety. The issues about the association of epigenetic differences of plants with their individual sensitivity to phytopathogens, as well as the association of epigenetic polymorphism typical for the variety with the diversity of nonspecific stability strategies and biodiversity of monosowings of agricultural crops, are discussed.
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Funding
This work was supported by project no. III-10-17 Development of Methods to Prevent a Decrease in Plant Productivity and to Predict the Effect of Climatic Changes on Their Metabolic Reactions and Adaptive Potential, state registration no. 0117U004310; targeted research program of the Department of General Biology of the National Academy of Sciences of Ukraine Fundamentals for Predicting and Preventing Negative Effect of Changes in Climatic Conditions on Biotic Systems of Ukraine.
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Translated by A. Barkhash
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Kravets, A.P., Sokolova, D.A. Epigenetic Factors of Plants’ Individual Sensitivity to Phytopathogens. Cytol. Genet. 54, 206–211 (2020). https://doi.org/10.3103/S0095452720030068
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DOI: https://doi.org/10.3103/S0095452720030068