The first mitochondrial genome of Tetraclita japonica (Crustacea: Sessilia) from China: phylogeny within Cirripedia based on mitochondrial genes

Abstract

The first mitochondrial genome of Tetraclita japonica from China was presented. The mitochondrial genome of T. japonica CN is a circular DNA molecule containing 15,192 bp. It contains 13 protein-coding genes, two rRNAs genes and 22 tRNAs. Four PCGs, seven tRNAs, and two rRNAs are encoded on the light strand (trnF, nd5, trnH, nd4, nd4L, trnP, nd1, trnL1, lrRNA, trnV, srRNA, trnK, and trnQ), and the other nine PCGs are located on the heavy strand. The length of all non-coding regions is 667 bp and the longest one distributed between srRNA and trnK (263 bp). Interestingly, cox1 of T. japonica CN started with CGA, which is different from most other mitochondrial PCGs whose initiation codon is ATN. In comparison with the pancrustacean ground pattern, seven tRNAs (trnQ, trnI, trnP, trnT, trnS 1 , trnE, and trnA) are translocated, and three tRNAs (trnK, trnC, and trnY) are inverted. Phylogenetic tree was constructed based on 13 mitochondrial PCGs. In the phylogenetic tree, T. japonica CN clustered with T. japonica JP into a branch (BP ¼ 100). Tesseropora rosea clustered with T. japonica, and they grouped with T. rufotincta with high support (BP ¼ 100). In the tree, T. divisa as the most distantly related species within Tetraclitidae. Moreover, phylogenetic analysis indicates that the two families (Balanidae and Archaeobalanidae) are non-monophyletic. More mitochondrial genomic data are urgently needed to reveal the deeper phylogeny within Cirripedia.

The complete mitochondrial genome of Tetraclita japonica (Crustacea: Maxillopoda: Sessilia) from Zhejiang (China) and phylogeny within Sessilia

“… 2019 ; Ge et al. 2019 ). The result can help us to the understanding the phylogenetic history within Sessilia.…”

The first mitochondrial genome of Tetraclita kuroshioensis (Crustacea: Sessilia) from China: insight into the phylogeny within Cirripedia

“… 2012 ), seven conserved blocks were found in the mitochondrial genome of T. kuroshioensis ( cox1- trnL2-cox2 , trnD-atp8-atp6-cox3-trnG-nad3 , trnR-trnN , trnF-nad5-trnH-nad4-nad4L , na d6-cob-trnS2 , nad1-lrRNA-trnV-srRNA , and trnM-nad2-trnW ), which was consistent with our previous studies (Ge et al. 2019 ).…”

Complete mitochondrial genome of Tetraclita squamosa squamosa (Sessilia: Tetraclitidae) from China and phylogeny within Cirripedia

“…fr/phyml/). A total of 30 species with 31 mitochondrial genomes from Cirripedia have been used in the phylogenetic tree Wares 2015;Shen, Chu, et al 2016;Shen, Tsoi, et al 2016;Feng et al 2019;Ge et al 2019;Kim et al 2019). This analysis involved four species belonging to genus Tetraclita: Tetraclita divisa, Tetraclita serrata, Tetraclita japonica CN/JP, and Tetraclita rufotincta.…”