The complete mitochondrial genome of the Arctic calanoid copepod Calanus hyperboreus

Abstract

Copepods are the most diverse and abundant groups in aquatic ecosystems and also dominate in polar ecosystem. Despite of their abundance and vast diversity, few complete mitochondrial genome data have been reported so far. Mitochondrial genomes contain the most informative sequences and gene arrangement for deeper phylogenetic analyses and they reflect evolutionary relationships and biogeography in the metazonas. Also, the interaction between adaptation in the harsh environment and mt genome rearrangement has been postulated in several studies. In an attempt to get more mt genome data of polar organisms, we selected Arctic calanoid copepod species Calanus hyperboreus. In our result, the gene arrangement of C. hyperboreus is very distinctive comparable to the pan-crustacean ground pattern. We attempt to solve the ordinal relationships of copepods in Subphylum Crustacea by phylogenetic analyses using sequence data from mitochondrial protein-coding genes. genomes contain the most informative sequences and gene arrangement for deeper phylogenetic analyses and they reflect evolutionary relationships and biogeography in the metazonas. Also, the interaction between adaptation in the harsh environment and mt genome rearrangement has been postulated in several studies. In an attempt to get more mt genome data of polar organisms, we selected Arctic calanoid copepod species Calanus hyperboreus. In our result, the gene arrangement of C. hyperboreus is very distinctive comparable to the pan-crustacean ground pattern. We attempt to solve the ordinal relationships of copepods in Subphylum Crustacea by phylogenetic analyses using sequence data from mitochondrial protein-coding genes.