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. 2020 Oct 27;9:e58533. doi: 10.7554/eLife.58533

Figure 3. Pleiotropic developmental abnormalities associated with the inheritance of ectopic H3K27me3 imprints in Arabidopsis.

(A) The F2 hybrids from reciprocal crosses between wild-type (WT) and elf6-C/ref6-5 display novel abnormal plant growth phenotypes. Frequency of abnormal phenotypes according to parental transmission of mutant alleles is indicated. Pedigree of an epimutant that was genetically wild-type for ELF6 and REF6 and selected for genomic analysis after propagation by selfing. Scale bars, 1 cm. (B) Venn diagram showing the overlap in genes accumulating H3K27me3 in elf6-C/ref6-5 and F5 progenies from A5.B1. p-values for Fisher’s exact test are shown in brackets, N.S. Not Significant. (C) Genome browser views of background subtracted ChIP-seq signals for H3K27me3 as normalized reads per genomic content (RPGC) in wild-type (WT), elf6-C, ref6-5, elf6-C/ref6-5, and F5 progenies from A5.B1 and A5.C6. Shaded boxes, genes showing transgenerational inheritance of H3K27me3. (D) Top panel: Differences in the chromosomal distribution of H3K27me3 as normalized reads per genomic content (RPGC) between F5 progenies from A5.B1 and A5.C6 and wild-type (WT). Grey shaded boxes, pericentromeric regions. Bottom panel: Genome browser view of ChIP-seq signal for H3K27me3 as normalized reads per genomic content (RPGC) in wild-type (WT), and F5 progenies from A5.B1 and A5.C6 in a pericentromeric region. 

Figure 3.

Figure 3—figure supplement 1. Phenotypic variation present in epiER progenies.

Figure 3—figure supplement 1.

Representative images of F4 and F5 progenies from epiER line A5 showing a wide range of developmental phenotypes.
Figure 3—figure supplement 2. Inheritance of ectopic H3K27me3 in epiERs.

Figure 3—figure supplement 2.

(A) Venn diagram showing the intersection between genes showing accumulation of H3K27me3 in elf6-C/ref6-5 and epiER A5.C6. p-values for Fisher’s exact test are shown in brackets, N.S. Not Significant. (B) Metaplot of the median of ChIP-seq RPGC across genes hypermethylated in both elf6-C/ref6-5 and epiER A5.C6. n = 198. (C) Euler diagram showing the intersection between the genes hypermethylated in elf6-C/ref6-5 and epiERs A5.B1 and A5.C6.