The complete mitochondrial genome of an interstitial polychaete,Pharyngocirrus uchidai(Annelida, Saccocirridae)

Abstract

PharyngocirrusDi Domenico, Martinez, Lana & Worsaae, 2014 belongs to the family Saccocirridae Bobretzky, 1872 and comprises 12 species. Of these,Pharynogocirrus uchidaiis known as distributed in only East Asia (Korea and Japan). This study reports the first complete mitogenome of the Protodriliformia group as well as Saccocirridae. The mitogenome ofP. uchidaiwas 15,415 bp long and included 13 protein-coding genes, two rRNA genes, 22 tRNA genes, and one control region. Based on the phylogenetic data, it was difficult to assess the phylogenetic position of Saccocirridae because of the low bootstrapping value and lack of mitogenome references of the Protodriliformia group. Nevertheless, this genetic data is important for better understanding of the phylogenetic position of the Protodriliformia group.