The mitochondrial genome analysis of Sphaeronemoura elephas (Plecoptera: Nemouridae) from Jiangxi Province of southeastern China

We sequenced and annotated the species of Sphaeronemoura elephas which represents the first record for continental China from Jiangxi Province in this study to provide mitochondrial genome data for future studies. The entire mitochondrial genome of S. elephas harbored 37 typical code genes and one control region with 15,846 bp in length. The A + T account of total nucleotide, PCGs, tRNAs, rRNAs and control region were 67.1, 64.5, 70.5, 71.0, 82.4%, respectively and the A + T content was the highest in control region. The start codon of all PCGs used ATN except ND5 and ND1 started with GTG and TTG. Eleven PCGs used typical terminal codon TAA or TAG while the COII and ND5 stopped with the single T. Based on 13 PCGs by using Bayesian (BI) and maximum-likelihood (ML) methods, we found that the genus Sphaeronemoura and Mesonemoura were sister groups and the species of Amphinemurinae was monophyletic group.