Complete mitochondrial genome of the euryhaline monogonont rotifer Brachionus paranguensis (Rotifera, Brachionidae)

The two complete mitochondrial genomes were sequenced from the euryhaline monogonont rotifer Brachionus paranguensis. The mitochondrial genome sequences were 11,603 bp and 12,901 bp in size, and the gene order of 12 protein-coding genes (PCGs) were identical to those of the marine rotifer Brachionus plicatilis, but the positions of some tRNAs (e.g. tRNA-Ile, tRNA-Leu[TTA], tRNA-Phe, and tRNA-Leu[CTC]) of mitochondrial DNA I were different between B. paranguensis and B. plicatilis mitochondrial genomes. Of 12 PCGs, four genes (ND1, ATPase 6, ND5, and ND3) had incomplete stop codons. Furthermore, the start codon of ND4, ND5, and CO3 genes was ATT, while the start codon of other PCGs was ATG. The base composition of 12 PCGs in B. paranguensis mitochondrial genomes was 26.6% for A, 43.0% for T, 17.65% for C, and 12.75% for G, respectively.