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Article

The Complete Mitochondrial Genome of Mytilisepta virgata (Mollusca: Bivalvia), Novel Gene Rearrangements, and the Phylogenetic Relationships of Mytilidae

by
Minhui Xu
1,
Zhongqi Gu
2,
Ji Huang
2,
Baoying Guo
1,
Lihua Jiang
1,
Kaida Xu
3,*,
Yingying Ye
1,* and
Jiji Li
1
1
National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan 316022, China
2
Shengsi Marine Science and Technology Institute, Shengsi, Zhoushan 202450, China
3
Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture and Rural Affairs of China, Zhejiang Marine Fisheries Research Institute, Zhoushan 316021, China
*
Authors to whom correspondence should be addressed.
Genes 2023, 14(4), 910; https://doi.org/10.3390/genes14040910
Submission received: 6 February 2023 / Revised: 10 April 2023 / Accepted: 10 April 2023 / Published: 13 April 2023
(This article belongs to the Special Issue Mitochondrial DNA Replication and Transcription)
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Abstract

The circular mitochondrial genome of Mytilisepta virgata spans 14,713 bp, which contains 13 protein-coding genes (PCGs), 2 ribosomal RNA genes, and 22 transfer RNA genes. Analysis of the 13 PCGs reveals that the mitochondrial gene arrangement of Mytilisepta is relatively conserved at the genus level. The location of the atp8 gene in Mytilisepta keenae differs from that of other species. However, compared with the putative molluscan ancestral gene order, M. virgata exhibits a high level of rearrangement. We constructed phylogenetic trees based on concatenated 12 PCGs from Mytilidae. As a result, we found that M. virgata is in the same clade as other Mytilisepta spp. The result of estimated divergence times revealed that M. virgata and M. keenae diverged around the early Paleogene period, although the oldest Mytilisepta fossil was from the late or upper Eocene period. Our results provide robust statistical evidence for a sister-group relationship within Mytilida. The findings not only confirm previous results, but also provide valuable insights into the evolutionary history of Mytilidae.
Keywords: Mytilidae; Mytilisepta virgate; mitogenome; gene rearrangement; phylogenetic Mytilidae; Mytilisepta virgate; mitogenome; gene rearrangement; phylogenetic

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MDPI and ACS Style

Xu, M.; Gu, Z.; Huang, J.; Guo, B.; Jiang, L.; Xu, K.; Ye, Y.; Li, J. The Complete Mitochondrial Genome of Mytilisepta virgata (Mollusca: Bivalvia), Novel Gene Rearrangements, and the Phylogenetic Relationships of Mytilidae. Genes 2023, 14, 910. https://doi.org/10.3390/genes14040910

AMA Style

Xu M, Gu Z, Huang J, Guo B, Jiang L, Xu K, Ye Y, Li J. The Complete Mitochondrial Genome of Mytilisepta virgata (Mollusca: Bivalvia), Novel Gene Rearrangements, and the Phylogenetic Relationships of Mytilidae. Genes. 2023; 14(4):910. https://doi.org/10.3390/genes14040910

Chicago/Turabian Style

Xu, Minhui, Zhongqi Gu, Ji Huang, Baoying Guo, Lihua Jiang, Kaida Xu, Yingying Ye, and Jiji Li. 2023. "The Complete Mitochondrial Genome of Mytilisepta virgata (Mollusca: Bivalvia), Novel Gene Rearrangements, and the Phylogenetic Relationships of Mytilidae" Genes 14, no. 4: 910. https://doi.org/10.3390/genes14040910

APA Style

Xu, M., Gu, Z., Huang, J., Guo, B., Jiang, L., Xu, K., Ye, Y., & Li, J. (2023). The Complete Mitochondrial Genome of Mytilisepta virgata (Mollusca: Bivalvia), Novel Gene Rearrangements, and the Phylogenetic Relationships of Mytilidae. Genes, 14(4), 910. https://doi.org/10.3390/genes14040910

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