Phylogenetic Implication of Large Intergenic Spacers: Insights from a Mitogenomic Comparison of Prosopocoilus Stag Beetles (Coleoptera: Lucanidae).

ABSTRACT: To explore the characteristics of mitogenomes and discuss the phylogenetic relationships within the genus Prosopocoilus, the mitogenomes of two species (P. castaneus and P. laterotarsus) were newly sequenced and comparatively analyzed. The arrangement of the mitogenome in these two lucanid beetles was the same as that in the inferred ancestral insect, and the nucleotide composition was highly biased towards A + T as in other lucanids. The evolutionary rates of 13 protein-coding genes (PCGs) suggested that their evolution was based on purifying selection. Notably, we found evidence of the presence of a large IGS between trnI and trnQ genes, whose length varied from 375 bp (in P. castaneus) to 158 bp (in P. laterotarsus). Within the large IGS

SUBMITTER: Xu M 

PROVIDER: S-EPMC9264858 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature