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Fig. 6 | BMC Biology

Fig. 6

From: Conservation and trans-regulation of histone modification in the A and B subgenomes of polyploid wheat during domestication and ploidy transition

Fig. 6

Alteration of histone modification level in the tetraploid extraction and hexaploid re-synthesis process, i.e., TAA10 → ETW → XX329. Only the predominant type (involving majority of the triad gene numbers), i.e., subgenomes A = B in all three genotypes, TAA10 (donor to ETW), ETW (extracted tetraploid wheat) and XX329 (resynthesized hexaploid wheat), for each of the two markers, H3K4me3 (a) and H3K27me3 (b), was shown, while the rest types were given in Additional file: Supplementary Table S10. The white, gray and yellow-colored boxes indicate expression levels of A-triad, B-triad and D-triad genes, respectively. Significant differences in the modification level of both markers is apparent between hexaploid (lower) and tetraploid (higher) wheats, and the alteration was reversible as evidenced by the extraction and reysnthesis process. The Wilcoxon test statistical analysis results are shown for pairwise compassions of subgenomes a, b, and d, below the figures. Red font indicates statistical significance (p values < 0.001). The two adjacent boxes are two biological replicates for each genotype

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