Figure 1

The genomic construct, comprising the putative AtRAD21.1 promoter region and gene, complements the atrad21.1 mutation. The complementation lines (Comp) are not hypersensitive to DNA dsb damage inducing ionising radiation, unlike the atrad21.1 mutant. Plants were photographed 27 days after exposure of the imbibed seeds to ionising radiation (150 Gy; 3.25 Gy/minute; source: Cs137). Two independent complementation lines (Comp) (in atrad21.1 mutant background carrying the complementation construct) and the atrad21.1 mutant (with no complementation construct) are shown.