The complete mitogenome of <i>Paratanakia chii</i> (Cypriniformes; Cyprinidae)

<i>Paratanakia chii</i> is a bitterling fish of the genus <i>Paratanakia</i>, subfamily Acheilognathinae and family Cyprinidae. The mitochondrial DNA sequence of <i>P. chii</i> is reported in this paper. The complete mitochondrial genome of <i>P. chii</i> is 16,575 bp in length, including 13 protein-coding genes (PCGs), 2 rRNA genes, 22 tRNA genes, and 1 displacement loop (D-loop). The genome sequence is consistent with those of most other carp. The majority of PCGs have AT- (Met) start codons and TA- end codons. The A + T contents of the genome, PCGs, transfer RNAs (tRNAs), and ribosomal RNAs (rRNAs) are 56.92%, 58.07%, 56.34%, and 54.21%, respectively. Phylogenetic analysis showed that <i>P. chii</i> is most closely related to <i>Tanankia himantegus</i>. These data will benefit relative ecological and phylogenetic studies.奇氏副鳑鲏（Paratanakia chii）是隶属于副鳑鲏属（Paratanakia）、鳑鲏亚科（Acheilognathinae）、鲤科（Cyprinidae）的一种鳑鲏鱼类。本论文报道了奇氏副鳑鲏的线粒体DNA序列。奇氏副鳑鲏的完整线粒体基因组长度为16575个碱基对（bp），包含13个蛋白质编码基因（PCGs）、2个核糖体RNA（rRNA）基因、22个转运RNA（tRNA）基因以及1个置换环（D-loop）。该基因组序列与多数其他鲤科鱼类的基因组序列相符。绝大多数蛋白质编码基因以AT（对应甲硫氨酸Met）作为起始密码子，并以TA型密码子作为终止密码子。整个基因组、蛋白质编码基因、转运RNA（tRNAs）以及核糖体RNA（rRNAs）的AT含量分别为56.92%、58.07%、56.34%和54.21%。系统发育分析表明，奇氏副鳑鲏与坦纳鳑鲏（Tanankia himantegus）亲缘关系最近。本研究所得数据将为相关生态学与系统发育学研究提供助力。