Four complete mitochondrial genomes of the genera Candidia, Opsariichthys, and Zacco (Cypriniformes: Cyprinidae). (1st November 2016) - Yin, Wei
Abstract: Members of Candidia, Nipponcrysis, Parazacco, Opsariichthys, and Zacco are a group of East Asian freshwater fishes, and these five genera form a monophyletic group within the subfamily Oxygastrinae (Cypriniformes: Cyprinidae). In this study, we first determined complete mitogenomes of Candidia pingtungensis, Opsariichthys acutipinnis, O. chengtui, and Zacco acanthogenys . The four mitogenomes with the length of 16 611–16 615 bp displayed the same patterns in gene arrangements and the use of start and stop codons for protein-coding genes. Our phylogeny divided Candidia, Nipponcrysis, Parazacco, Opsariichthys, and Zacco into two major groups that the former three genera consisted of a group and the latter two genera formed another group. The phylogeny also revealed that C. pingtungensis was nested within Nipponcrysis . Our findings indicate that the taxonomy status of Candidia and Nipponcrysis is still needed to be confirmed.