Complete mitochondrial genome of <i>Colias sifanica</i> Grum-Grshimailo, 1891 (Lepidoptera: Pieridae) from montane region in northwestern China

<i>Colias sifanica</i> Grum-Grshimailo, 1891, is a typical montane butterfly species which occurs on the Qinghai-Tibet Plateau (QTP) and adjacent regions in China. In this study, the complete mitochondrial genome of this species was assembled from data generated by next-generation sequencing. The mitogenome was 15,151 bp in length and comprised 13 protein-coding genes (PCGs), 2 ribosomal RNA genes, 22 transfer RNA genes and a control region. The base composition of the <i>C. sifanica</i> mitogenome was 39.7% A, 41.3% T, 11.3% C and 7.7% G, significantly AT biased as commonly found in other Pieridae mitogenomes. Phylogenetic analyses based on all PCGs using both the maximum likelihood and Bayesian inference methods indicated that <i>C. sifanica</i> is closely related to <i>C. fieldii</i> with high support values, and the phylogenetic relationship of (<i>Dercas</i> + ((<i>Gandaca</i> + <i>Gonepteryx</i>) + (<i>Phoebis</i> + (<i>Anteos</i> + (<i>Catopsilia</i> + (<i>Zerene</i> + <i>Colias</i>))))))) was shown for the tribe Coliadini. Though both the mitogenomic gene order and overall base composition were found to be conserved, different Ka/Ks ratios for several mitogenomic PCGs were detected between <i>Colias</i> and other species in the tribe Coliadini.