Fig. 1

Scheme of genome assembly and genomic features of the red turpentine beetle, Dendroctonus valens. a Sequencing scheme and genome assembly strategy adopted for D. valens genome sequencing. A strategy combining long-read PacBio sequencing, short-read Illumina sequencing, and HiC sequencing schemes was employed for generating a high-quality and complete genome assembly for D. valens. b Circular plot representation of the characteristics of the red turpentine beetle genome. From the outer to the inner panel, these genome tracks represent the following: I. Chromosome ideograms; II. Density of protein-coding genes; III. Density of G+C content; IV. Density of long interspersed nuclear elements (LINEs); V. Density of long terminal repeats retrotransposons (LTR-RTs); VI. Density of DNA transposons; and VII. Density of genome-wide single nucleotide polymorphism (SNP) sites, respectively. c Line plot showing the distribution of N(x) metrics in D. valens and other five Coleoptera insect species. The vertical dotted lines indicate the positions of N50 and N90 size, respectively. d BUSCO evaluation result for genome assemblies of six Coleoptera insects