Characterization of the complete mitochondrial genome of Aristaeopsis edwardsiana (Decapoda, Dendrobranchiata) and the phylogenetic implications for Aristeidae

Abstract

We analysed the mitochondrial genome of Aristaeopsis edwardsiana (Johnson, 1868) to understand its origin and evolution. Our study uncovered new insights into its phylogenetic relationships and evolutionary history. The mitogenome of A. edwardsiana is 15 913 bp, contains 37 genes, including 13 protein-coding genes (PCGs), 2 ribosomal RNA genes (rRNA) and 22 transfer RNA genes (tRNA). The AT content is 64.98%, with negative AT and GC skews. Our analysis showed that the PCGs of A. edwardsiana and related Aristeidae species underwent purifying selection. The tRNA genes exhibited a typical structure, except trnC and trnS1. The gene order was conserved compared to ancestral decapods. Using species of Dendrobranchiata, we constructed a phylogenetic tree, revealing the relationship of A. edwardsiana within the family Aristeidae. These findings improve our understanding of Decapoda classification and Aristeidae’s evolutionary position, facilitating further phylogenetic investigations. This study may serve as a valuable reference for future research on species of Aristeidae.