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Special Issue "Mitochondrial DNA Replication and Transcription"

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A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Animal Genetics and Genomics".

Deadline for manuscript submissions: 20 February 2024 | Viewed by 2993

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Special Issue Editors

Dr. Yingying Ye

E-Mail Website
Guest Editor

Department of Marine Biology, Zhejiang Ocean University, Zhoushan, China
Interests: population genetics, genetic diversity; molecular markers; mitochondrial genomes

Dr. Xiaolin Zhang
E-Mail Website
Guest Editor

Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
Interests: diversity and ecological function of algae microbial community of red tide dinoflagellates

Special Issue Information

Dear Colleagues,

The complete mitochondrial genome (mitogenome) provides more information than individual genes. It exhibits the characteristics of maternal inheritance, a high evolutionary rate and a relatively low intermolecular recombination rate, and it is becoming increasingly common for mitochondrial genomes to be used for phylogenetic reconstruction. The mitogenome can also provide direct molecular clues for gene rearrangement processes, which would reveal important information for phylogenetic analyses.

This Special Issue will cover aspects of the mitochondrial genome of animals, such as mitochondrial genome sequencing, sequence comparison, gene rearrangement, phylogenetic association, etc. This topic will provide valuable information on mitochondrial genome technologies and approaches, contributing to clarifying gene rearrangement and evolutionary relationships among species.

Dr. Yingying Ye
Dr. Xiaolin Zhang
Guest Editors

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Keywords

genomics
phylogenetic
mitochondrial genomes
gene rearrangement

Published Papers (4 papers)

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Research

Open AccessArticle

Comparative Mitogenome Analysis of Two Native Apple Snail Species (Ampullariidae, Pomacea) from Peruvian Amazon

Raquel Siccha-Ramirez

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Genes 2023, 14(9), 1769; https://doi.org/10.3390/genes14091769 - 07 Sep 2023

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Abstract

Apple snails of the genus Pomacea Perry, 1810 (Mollusca: Caenogastropoda: Ampullariidae) are native to the Neotropics and exhibit high species diversity, holding cultural and ecological significance as an important protein source in Peru. However, most genetic studies in Pomacea have focused mostly on invasive species, especially in Southeast Asia, where they are considered important pests. In this study, we assembled and annotated the mitochondrial genomes of two Pomacea species native to the Peruvian Amazon: Pomacea reevei Ampuero & Ramírez, 2023 and Pomacea aulanieri (Deville & Hupé, 1850). The mitogenomes of P. reevei and P. aulanieri comprise 15,660 and 16,096 bp, respectively, and contain the typical 37 genes of the animal mitochondria with a large control region of 292 bp in P. reevei and 524 bp in P. aulanieri—which fall within the range of what is currently known in Pomacea. Comparisons with previously published mitogenomes in Pomacea revealed differences in the overlapping of adjacent genes, the size of certain protein-coding genes (PCGs) and the secondary structure of some tRNAs that are consistent with the phylogenetic relationships between these species. These findings provide valuable insights into the systematics and genomics of the genus Pomacea. Full article

(This article belongs to the Special Issue Mitochondrial DNA Replication and Transcription)

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Open AccessArticle

Phylogenetic Analysis of Russian Native Sheep Breeds Based on mtDNA Sequences

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Genes 2023, 14(9), 1701; https://doi.org/10.3390/genes14091701 - 27 Aug 2023

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Abstract

Eurasia is represented by all climatic zones and various environments. A unique breed variety of farm animals has been developed in Russia, whose territory covers a large area of the continent. A total of 69 local breeds and types of dairy, wool, and meat sheep (Ovis aries) are maintained here. However, the genetic diversity and maternal origin of these local breeds have not been comprehensively investigated. In this study, we describe the diversity and phylogeny of Russian sheep breeds inhabiting different geographical regions based on the analysis of complete sequences of mitochondrial genomes (mtDNA). Complete mtDNA sequences of the studied sheep were obtained using next-generation sequencing technology (NGS). All investigated geographical groups of sheep were characterized by high haplotype (Hd = 0.9992) and nucleotide diversity (π = 0.00378). Analysis of the AMOVA results showed that genetic diversity was majorly determined by within-population differences (77.87%). We identified 128 haplotypes in all studied sheep. Haplotypes belonged to the following haplogroups: B (64.8%), A (28.9%), C (5.5%), and D (0.8%). Haplogroup B was predominant in the western part of Russia. A high level of mtDNA polymorphism in the studied groups of local sheep indicates the presence of a significant reserve of unique genotypes in Russia, which is to be explored. Full article

(This article belongs to the Special Issue Mitochondrial DNA Replication and Transcription)

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Open AccessArticle

Comparison of Mitochondrial Genome Sequences between Two Palaemon Species of the Family Palaemonidae (Decapoda: Caridea): Gene Rearrangement and Phylogenetic Implications

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Genes 2023, 14(7), 1499; https://doi.org/10.3390/genes14071499 - 22 Jul 2023

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Abstract

To further understand the origin and evolution of Palaemonidae (Decapoda: Caridea), we determined the mitochondrial genome sequence of Palaemon macrodactylus and Palaemon tenuidactylus. The entire mitochondrial genome sequences of these two Palaemon species encompassed 37 typical genes, including 13 protein-coding genes (PCGs), 2 ribosomal RNA genes (rRNAs), and 22 transfer RNA genes (tRNAs), and a control region (CR). The lengths of their mitochondrial genomes were 15,744 bp (P. macrodactylus) and 15,735 bp (P. tenuidactylus), respectively. We analyzed their genomic features and structural functions. In comparison with the ancestral Decapoda, these two newly sequenced Palaemon species exhibited a translocation event, where the gene order was trnK-trnD instead of trnD-trnK. Based on phylogenetic analysis constructed from 13 PCGs, the 12 families from Caridea can be divided into four major clades. Furthermore, it was revealed that Alpheidae and Palaemonidae formed sister groups, supporting the monophyly of various families within Caridea. These findings highlight the significant gene rearrangements within Palaemonidae and provide valuable evidence for the phylogenetic relationships within Caridea. Full article

(This article belongs to the Special Issue Mitochondrial DNA Replication and Transcription)

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Open AccessFeature PaperArticle

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

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Genes 2023, 14(4), 910; https://doi.org/10.3390/genes14040910 - 13 Apr 2023

Cited by 1 | Viewed by 988

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. Full article

(This article belongs to the Special Issue Mitochondrial DNA Replication and Transcription)

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Special Issue "Mitochondrial DNA Replication and Transcription"

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