The complete mitochondrial DNA of the Cuban gar (Atractosteus tristoechus)

Abstract

The Cuban gar ( Atractosteus tristoechus ) is an endemic lepisosteid living in Cuba. Among gars, this species is one of the most threatened and has the smallest natural distribution range. Lepisosteids are air-breathing fishes belonging to the Holostean, a basal non-teleost clade of actinopterygians. Recent studies have indicated that these fishes could be a ‘bridge between tetrapods and teleost biomedical models’. Herein, we sequenced and assembled the first complete mitochondrial genome of A. tristoechus . The total length of the mt genome is 16,290 bp, containing the typical 13 protein-coding genes, two ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and a 537 bp length control region.

Complete mitochondrial genome and the phylogenetic position of the Mugilogobius myxodermus: an endemic freshwater gobiid fish in China

“…M. myxodermus contains two non-coding regions: the control region (D-loop) is 850 bp in length, which is located between tRNA Pro and tRNA Phe genes; another small non-coding region, which is a 36 bp fragment and the origin of light-strand replication (O L ), is located between the tRNA Asn and tRNA Cys genes. The gene content, structure, and arrangement of mitogenome in M. myxodermus are similar to those observed in other fishes (Behera et al 2017;Mochizuki et al 2017;Ruck et al 2017;Ulmo-Dıaz et al 2017).…”