Fig. 1: DS and MRB genome assemblies.

a,b, Genomic features across haplotype A and B of DS (a) and MRB (b): (I) telomeres and centromeres; (II) TE density (number of TEs per 200 kb); (III) gene density (number of genes per 200 kb); (IV) SNP density (number of SNPs per 200 kb); and (V) GC content per 200 kb. ‘A’ means HapA and ‘B’ HapB. c, S-RNase and SFB (S-locus-related F-box gene) distribution in HapA and HapB of DS and MRB. The top graphs show gene number and TE percentage (per 50-kb window size and 20-kb step size) and the bottom graphs show the distribution of S-RNase; SFB and other genes and the genotype of S-RNase are marked. d, Orthologous gene pairs at an S-locus region across four haplotypes. The red line depicts orthologous F-box gene pairs, the yellow line the S-RNase gene pair and the green line other gene pairs.