The complete mitochondrial genome of Nautilus pompilius (Nautiloids: Nautilidae)

Nautilus pompilius has been listed as an endangered species by CITES due to low fecundity and overfishing. In this study, its whole circular mitochondrial genome (15,693 bp) was determined by polymerase chain reaction method. It contained the typical mitogenome gene set of 22 tRNAs, 13 protein coding genes (NAD1-6, NAD4L, COX1-3, Cob, ATP6 and ATP8), two rRNAs (rrnS and rrnL) and the non-coding A+T-rich region. The nucleotide composition was asymmetric with an obvious bias towards A and T (60.2%). Phylogenetic analysis revealed that N. pompilius is closely related to Nautilus macromphalus as expected. The complete mitochondrial genome of Nautilus pompilius will provided valuable information for corresponding conservation genetic studies.