Figure 1 Chromosome construction. (a) Chromosomal contact maps. The blocks represent the contacts between one location and another. The colour reflects the intensity of each contact, with deeper colours representing higher intensity; (b) Chromosome treemap. Each rectangle’s size is proportional to the length of its corresponding contig or chromosome; (c) The circus plot of the genome features. From outer to inner: distribution of DNA TEs, distribution of RNA TEs, gene density, GC content, the 24 chromosomes, each line connects paralogous gene pairs; (d) Functional annotation of the gene set. The set size means the total number of genes annotated by different databases; The vertical bars show the total number of genes present within an annotation or shared between annotations indicated by black dots present below the x-axis of the plot.