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Abstract
The complete mitochondrial genome of the natural pentaploid loach Misgurnus anguillicaudatus is a circular molecule of 16,643 bp in size, containing 13 protein-coding genes, 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes, and two main noncoding regions (the control region and the origin of the light strand replication). Most of the genes are encoded on the heavy strand, except for ND6 and eight tRNAs. The control region is 918 bp in length and located between the tRNAPro and tRNAPhe genes, some typical conserved elements (TAS, CSB1-3 and CSB D-F) were found in this region. All these features reflect a typical vertebrate mitochondrial gene arrangement of the pentaploid M. anguillicaudatus.
Declaration of interest
This research was supported by the Foundation of Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education) (No. XNYB11-3) and the National Natural Science Foundation of China (NSFC 51309196). The authors report no conflicts of interest. The authors alone are responsible for the content and writing of paper.