The near-complete mitogenome sequence of the Omei Horned Toad Megophrys omeimontis Liu, 1950 (Anura, Megophryidae)

AbstractThe nearly complete mitogenome of Megophrys omeimontis is 17,013 bp in length, including 13 protein-coding genes (PCGs), 2 rRNA genes, 22 tRNA genes and a D-loop region, and it shares the identical gene arrangement with Atympanophrys shapingensis. The overall base composition of this mitogenome is biased toward AT content at 60.10%. Most PCGs begin with ATG, whereas ND1 starts with ATA, ND2 initiates from ATT, ND3 starts with ATC, and COX1 begins with GTG. Four PCGs (COX1, ATP8, ND4L and ND5) use complete stop codon TAR, and ND6 ends with AGG, but the remaining eight PCGs terminate in TA or T. The putative control region of M. omeimontis mitogenome holds two tandem repeat motifs at the 5′ and 3′ ends, which is different from that of A. shapingensis mtDNA. Megophrys omeimontis becomes the sister lineage to the two other species, B. carinense and A. shapingensis.