Complete mitochondrial genome of the sand lamprey, Lampetra reissneri (Petromyzontiformes, Petromyzontidae).

The complete mitochondrial genome was sequenced from the river lamprey, Lampetra reissneri. The genome sequence was 16,197 bp in size, and the gene order and contents were identical to those of the congeneric species Lampetra japonica. However, L. reissneri had two incomplete control regions with a rearrangement of mitochondrial genomic organization compared with other fish mitochondrial genomes. Of 13 protein-coding genes (PCGs), only one gene (CO1) had an incomplete stop codon. The base composition of L. reissneri showed anti-G bias (12.99% and 4.49%) on the 2nd and 3rd position of PCGs, respectively.