Abstract
Complete mitochondrial genome of the Characiform fish Nematobrycon palmeri was characterized in the present study. The whole mitogenome was 17,340 bp in size and the proportion of coding sequences with a total length of 11,448 bp was 66.02%, which encodes 3805 amino acids. The base composition of the genome was 30.92% for A, 23.92% for C, 14.88% for G, and 30.28% for T. All protein-coding genes were started with ATG, CO1 and ATP8 ended by AGG, TAG respectively, whereas CO2, ATP6, ND4 ended by a single T, the other PCGs commonly ended by TAA. The length of 12S and 16S ribosomal RNA was 949 bp and 1675 bp, respectively. The control region (D-loop) ranging from 15,654 bp to 17,340 bp was 1687 bp in size. It showed negative GC skew value (–0.2329) and positive AT skewness (0.0105). Phylogenetic analysis showed that N. palmeri was most closely related to Gephyrocharax atracaudatus. The complete mitochondrial genome sequence would provide a new insight into taxonomic classification, and help to draw a more complete picture of species diversity within the Characidae.
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