Abstract
The complete mitochondrial genome of the intertidal barnacle Tetraclita rufotincta Pilsbry, 1916 (Crustacea: Maxillopoda: Sessilia) is presented. The genome is a circular molecule of 15,236 bp, which encodes a set of 37 typical metazoan mitochondrial genes. All non-coding regions are 438 bp in length, with the longest one speculated as the control region (242 bp), which is located between srRNA and trnK. Comparison of the genome and those of three other species from Tetraclitidae shows that gene arrangement is identical, indicating that the mitochondrial gene order is highly conserved in the family. Moreover, in comparison with the pancrustacean ground pattern, the four species of Tetraclitidae share three large conserved gene blocks. Phylogenetic analysis based on 13 mitochondrial PCGs shows that Chelonbia testudinaria (Coronulidae) clusters with the four species of Tetraclitidae. Within Tetraclitidae, T. serrata clusters with T. japonica, and the two grouped with T. rufotincta with high support (BP = 100), with T. divisa as the most distantly related species (BP = 100).
Highlights
The complete mitochondrial genome of the intertidal barnacle Tetraclita rufotincta Pilsbry, 1916 (Crustacea: Maxillopoda: Sessilia) is presented
A specimen of T. rufotincta was obtained from the coastline in the Red Sea in Eilat, Israel, which is stored at the Biodiversity Research Museum, Academia Sinica, Taiwan
Four protein-coding genes (PCGs) and two ribosomal RNAs (rRNAs) are encoded on the light strand, while the other nine PCGs are located on the heavy strand
Summary
The complete mitochondrial genome of the intertidal barnacle Tetraclita rufotincta Pilsbry, 1916 (Crustacea: Maxillopoda: Sessilia) is presented. KEYWORDS Tetraclita rufotincta; mitochondrial genome; gene order; phylogeny Barnacles of the genus Tetraclita are common intertidal inhabitants of tropical and sub-tropical waters (Newman and Ross 1976; Tsang et al 2012).
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