The complete mitochondrial genome sequence of Glyptothorax laosensis (Siluriformes, Sisoridae)

Abstract

The complete mitogenome sequence of Glyptothorax laosensis was determined using long PCR reactions. The genome is 16 539 bp in length, including 13 typical vertebrate protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and a control region. Except for eight tRNA and ND6 genes, all other mitochondrial genes are encoded on the heavy strand. The gene order and composition of G. laosensis was similar to that of most other vertebrates. The descending order of the base composition on heavy strand was 31.3% A, 27.5% C, 25.9% T, 15.3% G, with a relatively lower level of G and a slight AT bias of 57.2%. The results of phylogenetic reconstruction showed G. laosensis is the sister group with G. trilineatus (Figure 1), and the Glyptothorax genus formed a monophyletic group.

The complete mitogenome of Glyptothorax deqinensis (Siluriformes: Sisoridae)

“…MN082046), which was similar to that of other fishes from the genus Glyptothorax (Li 2016 ; Huang et al. 2017 ). The overall nucleotide composition for A, T, G, and C is 31.2, 25.2, 15.5, and 27.1%, respectively, with a G + C content of 42.6%.…”

“…After sequencing and assembly of mtDNA segments amplified by the 18 primer pairs, a circular mtgenome with a length of 16,542 bp was finally obtained (GenBank accession no. MN082046), which was similar to that of other fishes from the genus Glyptothorax (Li 2016;Huang et al 2017). The overall nucleotide composition for A, T, G, and C is 31.2, 25.2, 15.5, and 27.1%, respectively, with a G þ C content of 42.6%.…”

“…The mtgenomic structure of G. deqinensis was the same as that of other fishes from Glyptothorax (Li 2016 ; Huang et al. 2017 ).…”

“…Among the 37 genes, 28 genes are encoded by the heavy (H) strand, whereas the other 9 genes, including a proteincoding gene (ND6) and 8 tRNA genes (tRNA Gln , tRNA Ala , tRNA Asn , tRNA Cys , tRNA Tyr , tRNA Ser , tRNA Glu , and tRNA Pro ) are located on the light (L) strand. The mtgenomic structure of G. deqinensis was the same as that of other fishes from Glyptothorax (Li 2016;Huang et al 2017).…”

Characteristics and phylogenetic analysis of the complete mitochondrial genome of Glyptothorax pallozonus (Siluriformes, Sisoridae)

“…Based on phylogenetic analysis, these fishes can be divided into two main clades: G. zanaensis and G. trilineatus , and G. macromaculatus , G. sinensis , and G. fokiensis (Huang et al. 2017 ; Li 2017 ; Lv et al. 2018 ).…”