Complete genome sequence of the mitochondrial DNA of the river lamprey, Lethenteron japonicum

Abstract

Lampreys are eel-like jawless fishes evolutionarily positioned between invertebrates and vertebrates, and have been used as model organisms to explore vertebrate evolution. In this study we determined the complete genome sequence of the mitochondrial DNA of the Japanese river lamprey, Lethenteron japonicum, using next-generation sequencers. The sequence was 16,272 bp in length. The gene content and order were identical to those of the sea lamprey, Petromyzon marinus, which has been the reference among lamprey species. However, the sequence similarity was less than 90%, suggesting the need for the whole-genome sequencing of L. japonicum.

• Agnathan
• Japanese river lamprey
• Lethenteron japonicum
• mitochondrial genome
• next-generation sequencing
• vertebrate

Acknowledgements

The authors are grateful to Dr. Kuratani laboratory (RIKEN, Japan) for providing the lamprey sample.

Declaration of interest

This work was supported by KAKENHI (23770273, 24390251 and 24657151). Computation time was provided by the computer cluster at the Center for Regenerative Medicine, National Research Institute for Child Health and Development.

The authors declare that they have no competing interests.