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Abstract
We firstly reported the complete mitochondrial genome (mitogenome) of the polychaete Tylorrhynchus heterochaetus. Illumina next-generation sequencing generated a total of 19,796 reads with an average depth of 122.91×. The mitogenome is 16,106 bp in length including the typical structure of 13 protein coding genes, two rRNA genes, 22 tRNA genes and a putative control region. However, T. heterochaetus differs from other Nereididae species in the positions of four genes (tRNA-Met, tRNA-Asp, ATP8, tRNA-Tyr). All 37 genes are encoded on the heavy strand whose nucleotide composition is 32.20 % A, 13.67% C, 21.33% G and 32.80% T.
Declaration of interest
The authors report no conflict of interest. The authors alone are responsible for the content and writing of this article. This work was supported by the Project of Education Science for “the 12th Five-year Plan” of Guangdong Province (2012JK312) and the Science and Technology Program for Social Development Planning of Yangjiang, China (K0163206).