Genome-wide distribution of H3K9me3 and H3K27me3 in Zt09 and mutants.

(A) and (B) display the percentage of sequence coverage of core and accessory chromosomes with H3K9me3 and H3K27me3 relative to the chromosome length. While there were little differences in the overall coverage with H3K9me3 between Zt09 and Δkmt6 (A), H3K27me3 enrichment was increased on core chromosomes and decreased on accessory chromosomes in the Δkmt1 mutant (B). Chromosome 7 displayed a higher H3K27me3 coverage compared to the other core chromosomes as the right arm showed characteristics of an accessory chromosome [31]. (C and D) Genes (C) and TEs (D) associated with H3K9me3 or H3K27me3 in Zt09 and mutant strains. While there was almost no difference in terms of H3K9me3-associated genes or TEs in the Δkmt6 mutants, H3K27me3 relocated from genes to TEs in the Δkmt1 mutants.