Complete mitochondrial genome of the hydrozoan jellyfish Blackfordia virginica Mayer, 1910 (Cnidaria; Hydrozoa; Leptothecata) with phylogenetic analysis

Mitochondrial DNA B Resour. 2021 Mar 24;6(3):1202-1203. doi: 10.1080/23802359.2021.1903363.

Abstract

In this study, we analyzed the complete mitochondrial genome of the hydrozoan jellyfish Blackfordia virginica. The genome was a linear form (15,109 bp long, 73.6% AT), including 13 protein-coding genes (cox2, atp8, atp6, cox3, nad2, nad5, nad6, nad3, nad4L, nad1, nad4, cytB, and cox1), 2 tRNAs (tRNA-Met and tRNA-Trp), and 2 rRNAs (12S and 16S RNA). The genome structure of the B. virginica was completely identical to mitochondrial genomes of other hydrozoans that belonged to Leptothecata and Anthoathecata. Molecular phylogenetic analysis within hydrozoan species showed that B. virginica was the closest to the hydrozoan Laomedea flexuosa.

Keywords: Blackfordia virginica; Hydrozoa; mitochondrial genome; molecular phylogeny tree.

Grants and funding

This research was a part of the project titled ‘Improvement of management strategies on marine disturbing and harmful organisms [No. 20190518]’ funded by the Ministry of Oceans and Fisheries, Korea.