Abstract
The complete mitochondrial genome of the Oriental reed warbler, Acrocephalus orientalis, which belongs to the family Sylviidae was determined. The complete mitochondrial genome has a length of 16,971 bp and consists of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. A. orientalis has a mitochondrial gene arrangement that is typical of vertebrates. Phylogenetic analysis using mitochondrial genomes of 11 related species revealed that A. orientalis is clustered with Acrocephalus scirpaceus and rooted with the other Sylviidae species. This mitochondrial genome provides an important resource for addressing taxonomic issues and studying molecular evolution.