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Phylogenetic tree of Megabalanus tintinnabulum and other mitochondrial genomes from Cirripedia based on mitochondrial PCGs.
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Here we present the complete mitochondrial genome of Megabalanus tintinnabulum. The genome is 15,107 bp in length with a 67.35% AT content. It contains 13 protein-coding genes (PCGs), 2 rRNAs genes, and 22 tRNAs. Both rRNAs are encoded on the light strand, as in the other crustacean and barnacle mitochondrial genomes. Besides five tRNAs are encoded...
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The complete mitochondrial (mt) genome of Micromus paganus (Linnaeus, 1767) (Neuroptera: Hemerobiidae: Microminae) was assembled and the phylogenetic analysis of Chrysopoidea was conducted. The mt genome was 16,607 bp long including 13 protein-coding genes (PCGs), 22 tRNA genes, 2 rRNA genes, and a control region (CR). Twelve PCGs started with typi...
The complete mitochondrial genome of Tetraclita japonica (Crustacea: Maxillopoda: Sessilia) from Zhejiang (China) was presented (T. japonica ZJ). The genome is a circular molecule of 15,192 bp, all non-coding regions are 694 bp in length, and the longest one (307 bp) is located between 12S rRNA and trnK. Phylogenetic analysis based on mitochondrial...
This study is the first to sequence the complete mitochondrial genome (mitogenome) of Perforatus perforatus Bruguière, 1789 (Balanomorpha: Balanidae). The 15,536-bp long P. perforatus mitogenome contained a typical set of animal mitochondrial genes, along with one control region. The P. perforatus mitogenome had an inverted gene block (trnP-ND4L-ND...
Citations
... In contrast, the start codon preference uses ATN (N=A, T, C, G); notably, cox1 starts with CGA, and nd4L starts with GTG. The same is true for Tetraclitella divisa, E. plicata, M. ajax, M. tintinnabulum, and M. volcano [43]. The total number of M. coccopoma codons utilized was 3663, with AUU, UUU, and UUA being the most frequently used. ...
... Furthermore, M. coccopoma indicates an inversion (from light to heavy strand) of the gene cluster (P-nd4L-nd4-H-nd5-F) with three PCGs and three transporter RNAs. This gene rearrangement is consistent with previous studies[41][42][43]. The Balanidae, in which M. coccopoma is found, has three Models:Model 1, Model 3, and Model 6. M. coccopoma shares Model 3 with Balanidae (M. ...
Megabalanus coccopoma (Darwin, 1854) is a globally invasive species in Balanomorpha (Crustacea). This species is a model organism for studying marine pollution and ecology. However, its mitogenome remains unknown. The mitogenome sequencing of M. coccopoma is completed in the present study. It has a 15,098 bp in length, including 13 protein-coding genes (PCGs), 2 ribosomal RNAs (rRNAs), 22 transfer RNAs (tRNAs), along with a putative regulatory area. A substantial A+T bias was observed in the genome composition (68.2%), along with a negative AT (0.82) and GC (−0.136) skew. Compared to the gene sequence of the ground model of pan-crustacea, 13 gene clusters (or genes), such as 10 tRNAs and 3 PCGs, were observed in a different order. This was in line with the previously observed large-scale gene rearrangements of Balanomorpha. Among the 37 genes, the gene cluster (M-nad2-W-cox1-L2-cox2-D-atp8-atp6-cox3-G- nad3-R-N-A-E-S1) Balanomorpha was conserved. Furthermore, phylogeny analysis indicated that the existing Balanomorpha species family was divided into nine rearrangement patterns, supporting the polyphyly of Balanoidea.
... In comparison with Sessilia, the arrangement of the mitochondrial genome of B. trigonus is more similar to Megabalanus spp. (Megabalanus ajax, Megabalanus volcano, Megabalanus tintinnabulum) than the congener Balanus balanus, which share a same inversion of a large gene block (P-nd4L-nd4-H-nd5-F) except a translocation between trnQ and trnC Shen, Chu, et al. 2016;Shen, Tsoi, et al. 2016;Feng et al. 2019). ...
The triangle barnacle Balanus trigonus Darwin, 1854, a cosmopolitan inhabitant of tropical and warm temperate seas, is a member of robust system for the study of evolutionary processes in the intertidal zone. The first mitochondrial genome of B. trigonus is presented. The complete mitochondrial genome of B. trigonus is a circular molecule of 15,560 bp, which encodes 13 protein-coding genes (PCGs), 2 rRNA genes, and 22 tRNA genes. In comparison within Sessilia, the arrangement of the mitochondrial genome of B. trigonus is more similar to Megabalanus spp. than the congener Balanus balanus, which share a same inversion of a large gene block (P-nd4L-nd4-H-nd5-F). Phylogenetic analysis based on mitochondrial PCGs reveals that B. trigonus clusters with Acasta Sulcata (BP = 100), then grouped with Megabalanus volcano and Megabalanus ajax with high support (BP = 90). In further, more data and research are needed to reveal the 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. ...
Here we present the complete mitochondrial genome of Tetraclita squamosa squamosa, which is 15,191 bp in length with 67.20% AT content. It contains 13 protein-coding genes, 2 ribosomal-RNA genes and 22 transfer-RNA genes. All PCGs except nad4l in T. squamosa squamosa start with ATN, and terminated with a complete stop codon, except nad3. Phylogenetic analysis based on mitochondrial PCGs shows that T. squamosa squamosa is clustered with T. serrata into a branch (BP = 100). Our result is consistent with previous reports that genus Tetraclita and family Tetraclitidae are not monophyletic. This study contributes to further phylogenetic analysis within Cirripedia.
This study is the first to sequence the complete mitochondrial genome (mitogenome) of Perforatus perforatus Bruguière, 1789 (Balanomorpha: Balanidae). The 15,536-bp long P. perforatus mitogenome contained a typical set of animal mitochondrial genes, along with one control region. The P. perforatus mitogenome had an inverted gene block (trnP-ND4L-ND4-trnH-ND5-trnF) between trnS(gct) and trnT. This inverted gene block had been detected six species in three subfamilies of the Balanidae family (Balaninae, Acastinae and Megabalaninae), but our results show that it is also present in Concavinae, in which P. perforatus is included. The phylogenetic tree based on the concatenated sequences of the 13 protein-coding genes and two rRNA genes showed that P. perforatus is closely associated with Acasta sulcate and Balanus trigonus within Balanidae.
