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Epigenetic mechanisms regulating seed germination rate

机译:调控种子发芽率的表观遗传机制

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Changes in epigenetic polymorphism degree within wheat seedlings' population under radiation stimulating exposure of germination were investigated. Variations in seeds sample allocations by germination rate in both control and chronically exposed variants were estimated. Changes in DNA methylation patterns of seedlings from seeds with different germination rate were studied. Variations in epigenetic polymorphism-"distance" between DNA methylation patterns of "fast" and "slow" seedlings of different wheat varieties under radiation exposure were assessed. Indicated, that increased germination rate of seeds sample was associated with decreasing degree of epigenetic polymorphism. Issue concerning both role of epigenetic polymorphism in plant population stability and its decreasing degree that could initiate less effectiveness of production process was discussed.
机译:研究了辐射刺激下萌发条件下小麦幼苗群体表观遗传多态性的变化。估计在对照和长期暴露的变体中,种子样品分配随发芽率的变化。研究了不同发芽率种子的幼苗DNA甲基化模式的变化。评估了辐射暴露下不同小麦品种的“快”和“慢”幼苗的DNA甲基化模式之间的表观遗传多态性-“距离”的变化。表明,种子样品的发芽率提高与表观遗传多态性的降低有关。讨论了表观遗传多态性在植物种群稳定性中的作用及其降低程度可能导致生产过程效率降低的问题。

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