
Abstract The complete mitochondrial genome sequence of the raccoon dog (Nyctereutes procyonoides) was determined by using the long and accurate polymerase chain reaction. The entire mitochondrial genome sequence is 16,713 bp in length contains two ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes and 1 control region. Most mitochondrial genes are encoded on the H strand, except for the ND6 gene and 8 tRNA genes. The base compositions of mitochondrial genomes present clearly A–T skew. All the transfer RNA genes can be folded into the typical cloverleaf-shaped structure except tRNA-Ser (AGY), which lacks the dihydrouridine arm. Protein-coding genes mainly initiate with ATG and terminate with TAA. Some reading frame intervals and overlaps are found in the mitochondrial genome. The control region can be divided into three domains: the extended termination associated sequences (ETASs) domain, the central conserved domain and the conserved sequence blocks (CSBs) domain. Three conserved sequence blocks (CSBs) and one extended termination associated sequences (ETAS-1) is found in the control region. The phylogenetic analysis based on the concatenated data set of 14 genes in the mitochondrial genome of Canidae shows that the raccoon dog has close phylogenetic position with the red fox (Vulpes vulpes) and they constitute a clade which has an equil evolutionary position with the clade formed by the genera Canis and Cuon.
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