Identification of the complete mitochondrial genome of Garra pingi pingi (Cypriniformes, Cyprinidae)

Abstract

Garra pingi pingi, an endemic species to China, is mainly distributed in the upper Yangtze River and its tributaries. In present study, the complete mitochondrial genome of G. pingi pingi was first determined using the next-generation sequencing technology and annotated using bioinformatic tools. The circular mitochondrial genome was 16,599 bp long, contained 13 protein-coding genes, 2 ribosomal RNA genes (rRNA), 22 transfer RNA (tRNA) genes, an origin of light-strand replication (OL) and one displacement loop locus (D-loop). Most mitochondrial genes were encoded on the heavy strand, except for ND6 and eight tRNA genes. The total nucleotide composition was 31.48% A, 25.79% T, 26.66% C, 16.07% G, with 57.27% AT, respectively. Phylogenetic analysis based on the tandem 13 coding protein genes nucleotide sequences indicated that G. pingi pingi showed a close relationship with G. imberba. These data provide fundamental information not only for unravelling the population structure and differentiation, but also for further conservation genetics studies on Labeonini species.