Morphological and Mitochondrial Characterization of the Burying Beetle Nicrophorus quadraticollis (Portevin, 1903) (Coleoptera: Staphylinidae: Silphinae) and the Phylogenetic Implications

초록

In this study, we elucidated the morphological characteristics of the burying beetle Nicrophorus quadraticollis (Portevin, 1903) and its complete mitochondrial genome for the first time. The phylogenetic analysis results indicate that N. quadraticollis is nested within the genus Nicrophorus (tribe Nicrophorini) and support the monophyly of Silphinae as well as its division into two tribes, Silphini and Nicrophorini. The mitochondrial genome of N. quadraticollis is circular with a length of 17,747 bp, comprising 13 protein-coding genes (PCGs), 22 tRNA genes, and 2 rRNA genes, with a nucleotide composition of 40.9% adenine, 36.7% thymine, 9.0% guanine, and 13.4% cytosine. This study provides essential morphological and genomic data for N. quadraticollis, contributing to future taxonomic, phylogenetic, and evolutionary studies of Silphinae.

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