Fig. 4
The genetic basis of the DMRs. a The chromosomal location distributions of the meQTLs identified for DMRs during pear domestication and improvement. The x-axis represents the genomic positions of significant SNPs, and the y-axis represents the genomic positions of the corresponding DMRs of the SNPs. The colors of the dots represent the P-value in the meQTL analysis. The meQTL significant threshold was set as 1.78 × 10−9 (0.01/N, N=5,618,948), and only significant meQTLs were plotted. Dom-CG-DMR represents the CG DMRs between wild and landrace accessions; Dom-CHG-DMR represents the CHG DMRs between the wild and landrace accessions; Imp-CG-DMR represents the CG DMRs between the landrace and improved pear accessions; Imp-CHG-DMR represents the CHG DMRs between the landrace and improved pear accessions. b Distribution of the number of significant SNPs per DMR. c Distribution of the number of significantly associated DMRs for each SNP. d Summary of the genetic basis for the CG and CHG DMRs during pear domestication and improvement