Complete mitochondrial genome of the freshwater monogonont rotifer (Rotifera, Brachionidae).

The two complete mitochondrial genomes were sequenced from the freshwater monogonont rotifer . The mitochondrial genome sequences were 10,764 bp (mitochondrial DNA I) and 12,238 bp (mitochondrial DNA II) in size, respectively. The gene structure and its orientation of 12 protein-coding genes (PCGs) of complete mitochondrial genomes of was identical to those shown in other marine rotifers and the freshwater rotifer , but was different from the freshwater rotifer . Of 12 PCGs, one gene () had incomplete stop codon. Furthermore, the start codon for , , , and was GTG, while the start codon for and other PCGs was ATA and ATG, respectively. The base composition of 12 PCGs in mitogenome showed 20.4% for A, 47.3% for T, 17.5% for C, and 14.8% for G, respectively. The mitochondrial genome A + T base composition (67.7%) of 12 PCGs was higher than G + C (32.3%), while the complete mitochondrial genome A + T base composition (66.3%) was higher than G + C (33.7%).