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Effects of space radiation on the DNA methylation status of transposable elements in the mouse heart, as measured by methylation-sensitive real-time PCR. (A) LINE-1 elements L1MdA_I and L1MdA_VI; (B) autonomous retrotransposons ERV1 and ERV2; (C) non-autonomous retrotransposons SINE B1 and SINE B2. Data are presented as mean ± SE. *p≤0.05, **p≤0.01, ***p≤0.001, ANOVA with Dunnett’s test.
