Induction of Early Longrange Epigenetic Changes by αirradiation in Arabidopsis thaliana Plants
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Graphical Abstract
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Abstract
Along the way, the mutagenic mechanism of lowenergy ions irradiation is a debatable issue. Recently, the existence of radiation induced longrange (mutagenic) effects in vivo in plants has been performed in a series of studies of our group, which account for the mutagenesis of lowenergy ions irradiation in a new perspective. However, numerous distinct biology phenomena remain to be addressed, which bear obvious characteristics to epigenetic. In the present study, using the expression of methylationrelated AtDML3 gene and methylation level of specific gene segments as end points, the methylation of cytosine, the most important feature of epigenetic, was investigated. It was shown that, in A. thaliana, rootloca lized αirradiation could induce epigenetic changes in aerial parts which avoided the direct irradiation. The radiation induced longrange epigenetic changes were confirmed in this study, which supplied innovative ideas for the further investigation of the mutagenetic mechanism of lowenergy ions irradiation.
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