The complete mitochondrial genome sequence of Coreoperca whiteheadi (Perciformes: Serranidae)

The complete mitochondrial genome of a vulnerable mandarin fish Coreoperca liui (Teleostei: Perciformes: Serranidae) from Qiandaohu Lake in China

Coreoperca liui as an approximate species of the genus Siniperca, provides an important source for the genetic diversity of the mandarin fish, which is valuable for the protection of biodiversity and utilization of germplasm resources. The complete mitochondrial genome of C. liui is 16,482 bp long and it consists of 13 protein-coding genes (PCGs), two ribosomal RNA genes, 22 transfer RNA genes, and a control region (D-loop). Phylogenetic analysis using the maximum-likelihood method, based on 13 PCGs and two rRNA from 13 species produced three major clades. The phylogenetic tree showed that C. liui is most closely related to Coreoperca whiteheadi. Our results provide useful information for understanding the phylogeny of the genus Coreoperca, as well as for conducing conservation studies of Sinipercidae and related species.

The South American and Australian percichthyids and perciliids. What is new about them?

ABSTRACT A study including morphological characters and mitogenomics of South American and Australian fishes previously assigned to Percichthyidae was conducted. Results generated from these different data sets reveal major disagreements concerning the content and interpretation of the so-called percichthyids. A phylogenetic analysis based on 54 morphological characters suggests the existence of two major clades: (1) Percichthyidae, including the South American Percichthys and the Australian taxa Macquaria australasica, Macquaria (= Plectroplites), and Maccullochella; (2) Perciliidae with the South American genus Percilia at the base plus more advanced Australian genera Nannoperca, Nannatherina, Bostockia, and Gadopsis. In contrast, molecular and mitogenomic evidence suggests only one clade (Percichthyidae), with the exclusion of species of Macquaria (= Percalates). Additionally, the results reveal the existence of various taxonomic problems, such as the current interpretation of only one species of Percichthys in Argentina, an interpretation that is not supported by the present study; the existence of cryptic species of Percilia as well as of Gadopsis, Nannoperca, and Macquaria that will increase the diversity of the genera; and the need for an extensive revision of species previously assigned to Percalates versus Macquaria. Disagreements point to the need to develop further research on the so-called percichthyids and perciliids.

Complete mitochondrial genome of the endemic species Korean aucha perch Coreoperca herzi (Teleostei, Centrarchiformes, Sinipercidae)

In this study, we sequenced the complete mitochondrial genome of the endemic species Korean aucha perch Coreoperca herzi (Teleostei, Centrarchiformes, Sinipercidae). The mitogenome, consisting of 16 495 base pairs (bp), encoded 13 protein-coding genes (PCGs), 2 ribosomal RNAs (rRNAs), 22 transfer RNAs (tRNAs) and 2 non-coding region. The overall base composition of C. herzi is G + C: 46.3%, A + T: 53.7%, apparently with a slight AT bias. Phylogenetic analysis showed that the C. herzi was closed to Coreoperca kawamebari.