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Abstract

In this study, the complete mitogenome sequence of nereid worm, Neanthes glandicincta (Annelida: Nereididae), has been decoded for the first time by PCR amplification and Sanger sequencing methods. The overall base composition of N. glandicincta mitogenome is 31.5% for A, 22.2% for C, 14.5% for G and 31.7% for T, and has GC content of 36.7%. The assembled mitogenome, consisting of 16,126 bp, has unique 13 protein-coding genes (PCGs), 22 transfer RNAs and 2 ribosomal RNAs genes. The complete mitogenome of N. glandicincta shows 65% identities to Namalycastis abiuma. All PCGs, tRNA and rRNA genes were encoded on H-strand. The potential D-loop is 1625 bp in length and located between tRNA-Gly and tRNA-Met. The complete mitogenome provides essential and important DNA molecular data for further phylogenetic and evolutionary analysis for Annelida.