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Yang HJ, Yang ZH, Ren TG, Dong WG. Description and phylogenetic analysis of the complete mitochondrial genome in Eulaelaps silvestris provides new insights into the molecular classification of the family Haemogamasidae. Parasitology 2023; 150:821-830. [PMID: 37395062 PMCID: PMC10478059 DOI: 10.1017/s0031182023000616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/21/2023] [Accepted: 06/08/2023] [Indexed: 07/04/2023]
Abstract
In this study, the mitochondrial genome of Eulaelaps silvestris, which parasitizes Apodemus chevrieri, was sequenced and assembled to fill the gap in understanding the molecular evolution of the genus Eulaelaps. The E. silvestris mitochondrial genome is a double-stranded DNA molecule with a length of 14 882 bp, with a distinct AT preference for base composition and a notably higher AT content than GC content. The arrangement between genes is relatively compact, with a total of 10 gene intergenic regions and 12 gene overlap regions. All protein-coding genes had a typical ATN initiation codon, and only 2 protein-coding genes had an incomplete termination codon T. Out of the 13 protein-coding genes, the 5 most frequently used codons ended in A/U, with only 1 codon ending in G/C had an relative synonymous codon usage value >1. Except for trnS1 and trnS2, which lacked the D arm, all other tRNAs were able to form a typical cloverleaf structure; and there were a total of 38 mismatches in the folding process of tRNA genes. Unlike the gene arrangement order of the arthropod hypothetical ancestor, the E. silvestris mitochondrial genome underwent fewer rearrangements, mainly near tRNA genes and control regions. Both the maximum likelihood tree and the Bayesian tree showed that the family Haemogamasidae is most closely related to the family Dermanyssidae. The results not only provide a theoretical basis for studying the phylogenetic relationships of the genus Eulaelaps, but also provide molecular evidence that the family Haemogamasidae does not belong to the subfamily Laelapidae.
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Affiliation(s)
- Hui-Juan Yang
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan 671000, China
| | - Zhi-Hua Yang
- School of Foreign Languages, Dali University, Dali 671000, China
| | | | - Wen-Ge Dong
- Institute of Pathogens and Vectors, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali University, Dali, Yunnan 671000, China
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Cui L, Huang A, He Z, Ao L, Ge F, Fan X, Zeng B, Yang M, Yang D, Ni Q, Li Y, Yao Y, Xu H, Yang J, Wei Z, Li T, Yan T, Zhang M. Complete Mitogenomes of Polypedates Tree Frogs Unveil Gene Rearrangement and Concerted Evolution within Rhacophoridae. Animals (Basel) 2022; 12:2449. [PMID: 36139309 PMCID: PMC9494961 DOI: 10.3390/ani12182449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/10/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022] Open
Abstract
New developments in sequencing technology and nucleotide analysis have allowed us to make great advances in reconstructing anuran phylogeny. As a clade of representative amphibians that have radiated from aquatic to arboreal habitats, our understanding of the systematic status and molecular biology of rhacophorid tree frogs is still limited. We determined two new mitogenomes for the genus Polypedates (Rhacophoridae): P. impresus and P. mutus. We conducted comparative and phylogenetic analyses using our data and seven other rhacophorid mitogenomes. The mitogenomes of the genera Polypedates, Buergeria, and Zhangixalus were almost identical, except that the ATP8 gene in Polypedates had become a non-coding region; Buergeria maintained the legacy "LTPF" tRNA gene cluster compared to the novel "TLPF" order in the other two genera; and B. buergeri and Z. dennysi had no control region (CR) duplication. The resulting phylogenetic relationship supporting the above gene rearrangement pathway suggested parallel evolution of ATP8 gene loss of function (LoF) in Polypedates and CR duplication with concerted evolution of paralogous CRs in rhacophorids. Finally, conflicting topologies in the phylograms of 185 species reflected the advantages of phylogenetic analyses using multiple loci.
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Affiliation(s)
- Lin Cui
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - An Huang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhi He
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Lisha Ao
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Fei Ge
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaolan Fan
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Bo Zeng
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Mingyao Yang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Deying Yang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Qingyong Ni
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Li
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yongfang Yao
- College of Life Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Huailiang Xu
- College of Life Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Jiandong Yang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhimin Wei
- Institute of Millet Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
| | - Tongqing Li
- Hebei Fisheries Technology Extension Center, Shijiazhuang 050051, China
| | - Taiming Yan
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Mingwang Zhang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
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Hashimoto S, Kakehashi R, Mori T, Kambayashi C, Kanao S, Kurabayashi A. The complete mitochondrial genome of a bagrid catfish, Tachysurus nudiceps, and its phylogenetic implications for the classification of the bagrid genera. Mitochondrial DNA B Resour 2022; 7:606-608. [PMID: 35386628 PMCID: PMC8979532 DOI: 10.1080/23802359.2022.2057253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The complete sequence of the mitochondrial genome (mitogenome) of Tachysurus nudiceps (family Bagridae; order Siluriformes) was determined using next-generation sequencing. The composition of its mitogenome is the same as that observed in most other vertebrates and consists of 37 genes, an L-strand replication origin and a control region. As in previous studies, our phylogenetic analyses revealed that many of the bagrid genera are not monophyletic, emphasizing the necessity for reviewing and revising the taxonomy of this family at the genus level.
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Affiliation(s)
- Syuri Hashimoto
- Faculty of Bio-Science, Nagahama Institute of Bio-Science and Technology, Shiga, Japan
| | - Ryosuke Kakehashi
- Faculty of Bio-Science, Nagahama Institute of Bio-Science and Technology, Shiga, Japan
| | - Tsuyoshi Mori
- Faculty of Bio-Science, Nagahama Institute of Bio-Science and Technology, Shiga, Japan
| | - Chiaki Kambayashi
- Faculty of Bio-Science, Nagahama Institute of Bio-Science and Technology, Shiga, Japan
| | | | - Atsushi Kurabayashi
- Faculty of Bio-Science, Nagahama Institute of Bio-Science and Technology, Shiga, Japan
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Demongeot J, Moreira A, Seligmann H. Negative CG dinucleotide bias: An explanation based on feedback loops between Arginine codon assignments and theoretical minimal RNA rings. Bioessays 2020; 43:e2000071. [PMID: 33319381 DOI: 10.1002/bies.202000071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 01/05/2023]
Abstract
Theoretical minimal RNA rings are candidate primordial genes evolved for non-redundant coding of the genetic code's 22 coding signals (one codon per biogenic amino acid, a start and a stop codon) over the shortest possible length: 29520 22-nucleotide-long RNA rings solve this min-max constraint. Numerous RNA ring properties are reminiscent of natural genes. Here we present analyses showing that all RNA rings lack dinucleotide CG (a mutable, chemically instable dinucleotide coding for Arginine), bearing a resemblance to known CG-depleted genomes. CG in "incomplete" RNA rings (not coding for all coding signals, with only 3-12 nucleotides) gradually decreases towards CG absence in complete, 22-nucleotide-long RNA rings. Presumably, feedback loops during RNA ring growth during evolution (when amino acid assignment fixed the genetic code) assigned Arg to codons lacking CG (AGR) to avoid CG. Hence, as a chemical property of base pairs, CG mutability restructured the genetic code, thereby establishing itself as genetically encoded biological information.
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Affiliation(s)
- Jacques Demongeot
- Laboratory AGEIS EA 7407, Team Tools for e-Gnosis Medical & Labcom CNRS/UGA/OrangeLabs Telecom4Health, Faculty of Medicine, Université Grenoble Alpes, La Tronche, France
| | - Andrés Moreira
- Departamento de Informática, Universidad Técnica Federico Santa María, Santiago, Chile
| | - Hervé Seligmann
- Laboratory AGEIS EA 7407, Team Tools for e-Gnosis Medical & Labcom CNRS/UGA/OrangeLabs Telecom4Health, Faculty of Medicine, Université Grenoble Alpes, La Tronche, France.,The National Natural History Collections, The Hebrew University of Jerusalem, Jerusalem, Israel.,Institute of Microstructure Technology, Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
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5
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El Houmami N, Seligmann H. Evolution of Nucleotide Punctuation Marks: From Structural to Linear Signals. Front Genet 2017; 8:36. [PMID: 28396681 PMCID: PMC5366352 DOI: 10.3389/fgene.2017.00036] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 03/13/2017] [Indexed: 01/13/2023] Open
Abstract
We present an evolutionary hypothesis assuming that signals marking nucleotide synthesis (DNA replication and RNA transcription) evolved from multi- to unidimensional structures, and were carried over from transcription to translation. This evolutionary scenario presumes that signals combining secondary and primary nucleotide structures are evolutionary transitions. Mitochondrial replication initiation fits this scenario. Some observations reported in the literature corroborate that several signals for nucleotide synthesis function in translation, and vice versa. (a) Polymerase-induced frameshift mutations occur preferentially at translational termination signals (nucleotide deletion is interpreted as termination of nucleotide polymerization, paralleling the role of stop codons in translation). (b) Stem-loop hairpin presence/absence modulates codon-amino acid assignments, showing that translational signals sometimes combine primary and secondary nucleotide structures (here codon and stem-loop). (c) Homopolymer nucleotide triplets (AAA, CCC, GGG, TTT) cause transcriptional and ribosomal frameshifts. Here we find in recently described human mitochondrial RNAs that systematically lack mono-, dinucleotides after each trinucleotide (delRNAs) that delRNA triplets include 2x more homopolymers than mitogenome regions not covered by delRNA. Further analyses of delRNAs show that the natural circular code X (a little-known group of 20 translational signals enabling ribosomal frame retrieval consisting of 20 codons {AAC, AAT, ACC, ATC, ATT, CAG, CTC, CTG, GAA, GAC, GAG, GAT, GCC, GGC, GGT, GTA, GTC, GTT, TAC, TTC} universally overrepresented in coding versus other frames of gene sequences), regulates frameshift in transcription and translation. This dual transcription and translation role confirms for X the hypothesis that translational signals were carried over from transcriptional signals.
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Affiliation(s)
- Nawal El Houmami
- URMITE, Aix Marseille Université UM63, CNRS 7278, IRD 198, INSERM 1095, IHU - Méditerranée Infection Marseille, France
| | - Hervé Seligmann
- URMITE, Aix Marseille Université UM63, CNRS 7278, IRD 198, INSERM 1095, IHU - Méditerranée Infection Marseille, France
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Abstract
When given an option to choose among a set of alternatives and only one selection is right, one might stop and reflect over which one is best. However, the ribosome has no time to stop and make such reflections, proteins need to be produced and very fast. Eukaryotic translation initiation is an example of such a conundrum. Here, scanning for the correct codon match must be fast, efficient and accurate. We highlight our recent computational findings, which show how the initiation machinery manages to recognize one specific codon among many possible challengers, by fine-tuning the energetic landscape of base-pairing with the aid of the initiation factors eIF1 and eIF1A. Using a recent 3-dimensional structure of the eukaryotic initiation complex we have performed simulations of codon recognition in atomic detail. These calculations provide an in-depth energetic and structural view of how discrimination against near-cognate codons is achieved by the initiation complex.
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Affiliation(s)
- Christoffer Lind
- a Department of Cell and Molecular Biology , Uppsala University , Uppsala , Sweden
| | - Mauricio Esguerra
- a Department of Cell and Molecular Biology , Uppsala University , Uppsala , Sweden
| | - Johan Åqvist
- a Department of Cell and Molecular Biology , Uppsala University , Uppsala , Sweden
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7
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Wang YC, Zou Y, Sun XM, Gong J, Huang L, Jing MD. The complete mitochondrial genome sequence of the little grebe (Tachybaptus ruficollis). Genes Genomics 2017. [DOI: 10.1007/s13258-016-0480-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Anmarkrud JA, Lifjeld JT. Complete mitochondrial genomes of eleven extinct or possibly extinct bird species. Mol Ecol Resour 2016; 17:334-341. [DOI: 10.1111/1755-0998.12600] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 08/18/2016] [Accepted: 09/16/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Jarl A. Anmarkrud
- Natural History Museum University of Oslo PO Box 1172 Blindern Oslo 0318 Norway
| | - Jan T. Lifjeld
- Natural History Museum University of Oslo PO Box 1172 Blindern Oslo 0318 Norway
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Unbiased Mitoproteome Analyses Confirm Non-canonical RNA, Expanded Codon Translations. Comput Struct Biotechnol J 2016; 14:391-403. [PMID: 27830053 PMCID: PMC5094600 DOI: 10.1016/j.csbj.2016.09.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/28/2016] [Accepted: 09/29/2016] [Indexed: 01/14/2023] Open
Abstract
Proteomic MS/MS mass spectrometry detections are usually biased towards peptides cleaved by experimentally added digestion enzyme(s). Hence peptides resulting from spontaneous degradation and natural proteolysis usually remain undetected. Previous analyses of tryptic human proteome data (cleavage after K, R) detected non-canonical tryptic peptides translated according to tetra- and pentacodons (codons expanded by silent mono- and dinucleotides), and from transcripts systematically (a) deleting mono-, dinucleotides after trinucleotides (delRNAs), (b) exchanging nucleotides according to 23 bijective transformations. Nine symmetric and fourteen asymmetric nucleotide exchanges (X ↔ Y, e.g. A ↔ C; and X → Y → Z → X, e.g. A → C → G → A) produce swinger RNAs. Here unbiased reanalyses of these proteomic data detect preferentially non-canonical tryptic peptides despite assuming random cleavage. Unbiased analyses couldn't reconstruct experimental tryptic digestion if most detected non-canonical peptides were false positives. Detected non-tryptic non-canonical peptides map preferentially on corresponding, previously described non-canonical transcripts, as for tryptic non-canonical peptides. Hence unbiased analyses independently confirm previous trypsin-biased analyses that showed translations of del- and swinger RNA and expanded codons. Accounting for natural proteolysis completes trypsin-biased mitopeptidome analyses, independently confirms non-canonical transcriptions and translations.
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Doublet V, Ubrig E, Alioua A, Bouchon D, Marcadé I, Maréchal-Drouard L. Large gene overlaps and tRNA processing in the compact mitochondrial genome of the crustacean Armadillidium vulgare. RNA Biol 2015; 12:1159-68. [PMID: 26361137 DOI: 10.1080/15476286.2015.1090078] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
A faithful expression of the mitochondrial DNA is crucial for cell survival. Animal mitochondrial DNA (mtDNA) presents a highly compact gene organization. The typical 16.5 kbp animal mtDNA encodes 13 proteins, 2 rRNAs and 22 tRNAs. In the backyard pillbug Armadillidium vulgare, the rather small 13.9 kbp mtDNA encodes the same set of proteins and rRNAs as compared to animal kingdom mtDNA, but seems to harbor an incomplete set of tRNA genes. Here, we first confirm the expression of 13 tRNA genes in this mtDNA. Then we show the extensive repair of a truncated tRNA, the expression of tRNA involved in large gene overlaps and of tRNA genes partially or fully integrated within protein-coding genes in either direct or opposite orientation. Under selective pressure, overlaps between genes have been likely favored for strong genome size reduction. Our study underlines the existence of unknown biochemical mechanisms for the complete gene expression of A. vulgare mtDNA, and of co-evolutionary processes to keep overlapping genes functional in a compacted mitochondrial genome.
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Affiliation(s)
- Vincent Doublet
- a Equipe Ecologie Evolution Symbiose; Laboratoire Ecologie et Biologie des Interactions , UMR CNRS 7267, Poitiers , France
| | - Elodie Ubrig
- b Institut de biologie moléculaire des plantes; associated with the University of Strasbourg , Strasbourg , France
| | - Abdelmalek Alioua
- b Institut de biologie moléculaire des plantes; associated with the University of Strasbourg , Strasbourg , France
| | - Didier Bouchon
- a Equipe Ecologie Evolution Symbiose; Laboratoire Ecologie et Biologie des Interactions , UMR CNRS 7267, Poitiers , France
| | - Isabelle Marcadé
- a Equipe Ecologie Evolution Symbiose; Laboratoire Ecologie et Biologie des Interactions , UMR CNRS 7267, Poitiers , France
| | - Laurence Maréchal-Drouard
- b Institut de biologie moléculaire des plantes; associated with the University of Strasbourg , Strasbourg , France
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Yoon KB, Cho CU, Park YC. The mitochondrial genome of the Saunders's gull Chroicocephalus saundersi (Charadriiformes: Laridae) and a higher phylogeny of shorebirds (Charadriiformes). Gene 2015; 572:227-36. [PMID: 26165451 DOI: 10.1016/j.gene.2015.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 06/20/2015] [Accepted: 07/07/2015] [Indexed: 01/22/2023]
Abstract
The complete mitogenome of Chroicocephalus saundersi was characterized and compared with the 6 published Charadriiformes mitogenomes. The mitogenome of C. saundersi is a closed circular molecule 16,739 bp in size, and contains 37 genes and a control region. The AT and GC skews are positive and negative, respectively, and in agreement with those of the other Charadriiformes mitogenomes. The mitogenome of C. saundersi contains 3 start codons (ATG, GTG, and ATT), 4 stop codons (TAA, TAG, AGG, and AGA), and an incomplete stop codon (T-) in 13 PCGs. A codon usage analysis of all available Charadriiformes mitogenomes showed that the ATG (78%) and TAA (50.5%) were the most common start codon and stop codon, respectively. An unusual start codon, ATT, is commonly found in the ND3s of Charadriiformes mitogenomes, whereas the more common start codons, ATC and ATA, are rarely found. In all the Laridae species, one extra cytosine was inserted at position 174 in ND3. The control region of C. saundersi is 1180-bp long, with a nucleotide composition of 30.2% A, 28.6% T, 27.3% C, and 14.0% G. Variable numbers of tandem repeats (VNTRs) with nine copies of the 10 bp repeat sequence (AACAACAAAC) are found within the CSB domain of the control region. The ML/BI analyses, based on the amino acids of the 13 mitochondrial PCGs, strongly support the monophyly of the order Charadriiformes, with the suborder Lari considered sister to the Scolopaci, which is in turn a sister group to the suborder Charadrii.
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Affiliation(s)
- Kwang Bae Yoon
- Division of Forest Science, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Chea Un Cho
- Species Restoration Technology Institute, Korea National Park Service, Inje 252-829, Republic of Korea
| | - Yung Chul Park
- Division of Forest Science, Kangwon National University, Chuncheon 200-701, Republic of Korea.
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Li W, Zhang XC, Zhao J, Shi Y, Zhu XP. Complete mitochondrial genome of Cuora trifasciata (Chinese three-striped box turtle), and a comparative analysis with other box turtles. Gene 2014; 555:169-77. [PMID: 25445281 DOI: 10.1016/j.gene.2014.10.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 10/22/2014] [Accepted: 10/31/2014] [Indexed: 11/26/2022]
Abstract
Cuora trifasciata has become one of the most critically endangered species in the world. The complete mitochondrial genome of C. trifasciata (Chinese three-striped box turtle) was determined in this study. Its mitochondrial genome is a 16,575-bp-long circular molecule that consists of 37 genes that are typically found in other vertebrates. And the basic characteristics of the C. trifasciata mitochondrial genome were also determined. Moreover, a comparison of C. trifasciata with Cuora cyclornata, Cuora pani and Cuora aurocapitata indicated that the four mitogenomics differed in length, codons, overlaps, 13 protein-coding genes (PCGs), ND3, rRNA genes, control region, and other aspects. Phylogenetic analysis with Bayesian inference and maximum likelihood based on 12 protein-coding genes of the genus Cuora indicated the phylogenetic position of C. trifasciata within Cuora. The phylogenetic analysis also showed that C. trifasciata from Vietnam and China formed separate monophyletic clades with different Cuora species. The results of nucleotide base compositions, protein-coding genes and phylogenetic analysis showed that C. trifasciata from these two countries may represent different Cuora species.
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Affiliation(s)
- Wei Li
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China; College of Life Science and Fisheries, Shanghai Ocean University, Shanghai 201306, PR China
| | - Xin-Cheng Zhang
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
| | - Jian Zhao
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China; College of Life Science and Fisheries, Shanghai Ocean University, Shanghai 201306, PR China
| | - Yan Shi
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
| | - Xin-Ping Zhu
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China.
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Finseth FR, Harrison RG. A comparison of next generation sequencing technologies for transcriptome assembly and utility for RNA-Seq in a non-model bird. PLoS One 2014; 9:e108550. [PMID: 25279728 PMCID: PMC4184788 DOI: 10.1371/journal.pone.0108550] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 08/30/2014] [Indexed: 12/21/2022] Open
Abstract
De novo assembled transcriptomes, in combination with RNA-Seq, are powerful tools to explore gene sequence and expression level in organisms without reference genomes. Investigators must first choose which high throughput sequencing platforms will provide data most suitable for their experimental goals. In this study, we explore the utility of 454 and Illumina sequences for de novo transcriptome assembly and downstream RNA-Seq applications in a reproductive gland from a non-model bird species, the Japanese quail (Coturnix japonica). Four transcriptomes composed of either pure 454 or Illumina reads or mixtures of read types were assembled and evaluated for the same cost. Illumina assemblies performed best for de novo transcriptome characterization in terms of contig length, transcriptome coverage, and complete assembly of gene transcripts. Improvements over the Hybrid assembly were marginal, with the exception that the addition of 454 data significantly increased the number of genes annotated. The Illumina assembly provided the best reference to align an independent set of RNA-Seq data as ∼84% of reads mapped to single genes in the transcriptome. Contigs constructed solely from 454 data may impose problems for RNA-Seq as our 454 transcriptome revealed a high number of indels and many ambiguously mapped reads. Correcting the 454 transcriptome with Illumina reads was an effective strategy to deal with indel and frameshift errors inherent to the 454 transcriptome, but at the cost of transcriptome coverage. In the absence of a reference genome, we find that Illumina reads alone produced a high quality transcriptome appropriate for RNA-Seq gene expression analyses.
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Affiliation(s)
- Findley R. Finseth
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, United States of America
- * E-mail:
| | - Richard G. Harrison
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, United States of America
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Omeire D, Abdin S, Brooks DM, Miranda HC. Complete mitochondrial genome of Germain's Peacock-Pheasant Polyplectron germaini (Aves, Galliformes, Phasianidae). MITOCHONDRIAL DNA 2014; 26:319-20. [PMID: 24460165 DOI: 10.3109/19401736.2013.830292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The Germain's Peacock-Pheasant Polyplectron germaini (Aves, Galliformes, Phasianidae) is classified as Near Threatened on the IUCN Red List. The complete mitochondrial genome of P. germaini is 16,699 bp, consisting of 13 protein-coding genes, 2 rRNA, 22 tRNA genes and 1 control region. All of the 13 protein-coding genes have ATG as start codon. Eight of the 13 protein-coding genes have TAA as stop codon.
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Affiliation(s)
- Destiny Omeire
- Department of Biology, Texas Southern University , TX , USA and
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15
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The complete sequence of the mitochondrial genome of the African Penguin (Spheniscus demersus). Gene 2014; 534:113-8. [DOI: 10.1016/j.gene.2013.09.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 09/13/2013] [Accepted: 09/16/2013] [Indexed: 11/23/2022]
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16
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Iwasaki W, Fukunaga T, Isagozawa R, Yamada K, Maeda Y, Satoh TP, Sado T, Mabuchi K, Takeshima H, Miya M, Nishida M. MitoFish and MitoAnnotator: a mitochondrial genome database of fish with an accurate and automatic annotation pipeline. Mol Biol Evol 2013; 30:2531-40. [PMID: 23955518 PMCID: PMC3808866 DOI: 10.1093/molbev/mst141] [Citation(s) in RCA: 525] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Mitofish is a database of fish mitochondrial genomes (mitogenomes) that includes powerful and precise de novo annotations for mitogenome sequences. Fish occupy an important position in the evolution of vertebrates and the ecology of the hydrosphere, and mitogenomic sequence data have served as a rich source of information for resolving fish phylogenies and identifying new fish species. The importance of a mitogenomic database continues to grow at a rapid pace as massive amounts of mitogenomic data are generated with the advent of new sequencing technologies. A severe bottleneck seems likely to occur with regard to mitogenome annotation because of the overwhelming pace of data accumulation and the intrinsic difficulties in annotating sequences with degenerating transfer RNA structures, divergent start/stop codons of the coding elements, and the overlapping of adjacent elements. To ease this data backlog, we developed an annotation pipeline named MitoAnnotator. MitoAnnotator automatically annotates a fish mitogenome with a high degree of accuracy in approximately 5 min; thus, it is readily applicable to data sets of dozens of sequences. MitoFish also contains re-annotations of previously sequenced fish mitogenomes, enabling researchers to refer to them when they find annotations that are likely to be erroneous or while conducting comparative mitogenomic analyses. For users who need more information on the taxonomy, habitats, phenotypes, or life cycles of fish, MitoFish provides links to related databases. MitoFish and MitoAnnotator are freely available at http://mitofish.aori.u-tokyo.ac.jp/ (last accessed August 28, 2013); all of the data can be batch downloaded, and the annotation pipeline can be used via a web interface.
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Affiliation(s)
- Wataru Iwasaki
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
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Miller AD, Good RT, Coleman RA, Lancaster ML, Weeks AR. Microsatellite loci and the complete mitochondrial DNA sequence characterized through next generation sequencing and de novo genome assembly for the critically endangered orange-bellied parrot, Neophema chrysogaster. Mol Biol Rep 2012; 40:35-42. [DOI: 10.1007/s11033-012-1950-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Accepted: 10/01/2012] [Indexed: 11/28/2022]
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18
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Williams EP, Peer AC, Miller TJ, Secor DH, Place AR. A phylogeny of the temperate seabasses (Moronidae) characterized by a translocation of the mt-nd6 gene. JOURNAL OF FISH BIOLOGY 2012; 80:110-130. [PMID: 22220893 DOI: 10.1111/j.1095-8649.2011.03158.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The entire mitochondrial genome of the striped bass Morone saxatilis was sequenced together with the mitochondrial (mt) control regions of the white bass Morone chrysops, white perch Morone americana, yellow bass Morone mississippiensis, spotted seabass Dicentrarchus punctatus, European seabass Dicentrarchus labrax and the Japanese seabass Lateolabrax japonicus. The resultant 17 580 base pair circular genome of M. saxatilis contains 38 genes (13 proteins, 23 transfer RNAs and two ribosomal RNAs) and a control region bordered by the proline and phenylalanine mitochondrial tRNAs. Gene arrangement was similar to other vertebrates, except that the mt-nd6 gene was found within the control region rather than the canonical position between the mt-nd5 and mt-cyb genes. This translocation was found in all the Morone and Dicentrarchus species studied without functional copies or pseudogenes in the ancestral position. In L. japonicus, the mt-nd6 gene was found in the canonical position without evidence of an mt-nd6 gene in the control region. A Bayesian analysis of these and published mt-nd6 sequences from 45 other Perciformes grouped the Morone and Dicentrarchus species monophyletically with a probability of 1·00 with respect to L. japonicus and all other perciforms, and placed the Dicentrarchus species in the basal position. These data reinforce current placement of L. japonicus outside the Moronidae and provide a clear evolutionary character to define this family. The phylogeny of the Moronidae presented here also supports the hypothesis of an anadromous common ancestor to this family that gave rise to the North American estuarine and freshwater species. A series of tandem repeats previously reported in M. saxatilis was found in the control region of all Morone species between the mt-nd6 and mt-rnr1 genes, but not in either Dicentrarchus species, which reinforces the continued use of these two separate genera.
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Affiliation(s)
- E P Williams
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, MD 21202, USA
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19
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Verkuil YI, Piersma T, Baker AJ. A novel mitochondrial gene order in shorebirds (Scolopacidae, Charadriiformes). Mol Phylogenet Evol 2010; 57:411-6. [DOI: 10.1016/j.ympev.2010.06.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 06/13/2010] [Accepted: 06/15/2010] [Indexed: 11/29/2022]
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20
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Cho HJ, Eda M, Nishida S, Yasukochi Y, Chong JR, Koike H. Tandem duplication of mitochondrial DNA in the black-faced spoonbill, Platalea minor. Genes Genet Syst 2010; 84:297-305. [PMID: 20057167 DOI: 10.1266/ggs.84.297] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Mitochondrial (mt) heteroplasmy in the control region (CR) of the black-faced spoonbill was investigated using LA-PCR. To avoid amplification of transpositioned nuclear genome fragment from mtDNA (numt), PCR product of the almost-complete mitochondrial genome was amplified using primers designed to anneal on the COIII gene. Then nested LA-PCR product was amplified between the cyt b and 12S rRNA genes using the almost-complete mitochondrial genome PCR product as a template. Nucleotide sequencing revealed tandem duplication composed of two units. The first contains cyt b-1, tRNA(Thr)-1, tRNA(Pro)-1, ND6-1, tRNA(Glu)-1 and CR1, and the second consists of cyt b-2, tRNA(Thr)-2, tRNA(Pro)-2, ND6-2, tRNA(Glu)-2 and CR2, followed by tRNA(Phe) and 12S rRNA. The duplicated cyt b-2 sequence coincided with 499 bp at the 3' end of cyt b-1. With the exception of the CR, the other genes in the duplicated sequence were identical to the original corresponding gene. Even though both CR1 and CR2 contain functional blocks, such as a poly-C site, a goose hairpin and a TAS structure in Domain I, the 3' end of CR1 was followed by a 112 bp sequence (non-coding region) that was not found in CR2 or in sequence homology analysis of similar genes. Meanwhile, CR2 ended in a complicated repeat sequence. The 5' franking region in the Domain I (Region A) and the 3' franking region in the Domain I (Region B) of the two CRs evolve in quite different manners: Region A was highly variable between CR1 and CR2 in the same individuals, while Region B was almost identical between them, which indicates concerted evolution.
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Affiliation(s)
- Hyong-Ju Cho
- Laboratory of Biodiversity, Department Environmental Changes, SCS, Kyushu University, Fukuoka City 819-0395, Japan
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21
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Evidence for introgressive hybridization of wild common quail (Coturnix coturnix) by domesticated Japanese quail (Coturnix japonica) in France. CONSERV GENET 2009. [DOI: 10.1007/s10592-009-9951-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Shi XW, Wang JW, Zeng FT, Qiu XP. Mitochondrial DNA cleavage patterns distinguish independent origin of Chinese domestic geese and Western domestic geese. Biochem Genet 2007; 44:237-45. [PMID: 16957989 DOI: 10.1007/s10528-006-9028-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
It has generally been assumed, based on morphology, that Chinese domestic goose breeds were derived from the swan goose (Anser cygnoides) and that European and American breeds were derived from the graylag goose (Anser anser). To test the validity of this assumption, we investigated the mtDNA cleavage patterns of 16 Chinese breeds and 2 European breeds as well as hybrids produced between a Chinese breed and a European breed. After 224 mtDNAs, isolated from the Chinese and European breeds, were digested by 19 restriction endonucleases, variations of the cleavage patterns were observed for four enzymes (EcoRV, HaeII, HincII, and KpnI). All Chinese breeds and their maternal hybrids except the Yili breed showed an identical haplotype, named haplotype I or the Chinese haplotype; the European breeds and the Yili breed showed another haplotype, named haplotype II or the western haplotype. None of the haplotype found in the Chinese type was detectable in the western type and vice versa. The two haplotypes were found to differ from each other at 8.0% of the sites surveyed and with a 0.72% sequence divergence. Using 2% substitution per million years calibrated from the genera Anser and Branta, the two domestic geese haplotypes were estimated to have diverged approximately 360,000 years ago, well outside the 3000-6000 years in domestic history. Our findings provide the first molecular genetic evidence to support the dual origin assumption of domestic geese in the world. Meanwhile, the four mtDNA restriction fragment length polymorphisms can be used as maternal genetic markers to distinguish the two types of domestic geese.
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Affiliation(s)
- X-W Shi
- Center for Agricultural Biodiversity Research and Training of Yunnan Province, College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, 650201, PR China.
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23
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Crowe TM, Bowie RCK, Bloomer P, Mandiwana TG, Hedderson TAJ, Randi E, Pereira SL, Wakeling J. Phylogenetics, biogeography and classification of, and character evolution in, gamebirds (Aves: Galliformes): effects of character exclusion, data partitioning and missing data. Cladistics 2006; 22:495-532. [DOI: 10.1111/j.1096-0031.2006.00120.x] [Citation(s) in RCA: 125] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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24
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Satoh TP, Miya M, Endo H, Nishida M. Round and pointed-head grenadier fishes (Actinopterygii: Gadiformes) represent a single sister group: Evidence from the complete mitochondrial genome sequences. Mol Phylogenet Evol 2006; 40:129-38. [PMID: 16603389 DOI: 10.1016/j.ympev.2006.02.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2005] [Revised: 02/13/2006] [Accepted: 02/14/2006] [Indexed: 11/28/2022]
Abstract
The gene order of mitochondrial genomes (mitogenomes) has been employed as a useful phylogenetic marker in various metazoan animals, because it may represent uniquely derived characters shared by members of monophyletic groups. During the course of molecular phylogenetic studies of the order Gadiformes (cods and their relatives) based on whole mitogenome sequences, we found that two deep-sea grenadiers (Squalogadus modificatus and Trachyrincus murrayi: family Macrouridae) revealed a unusually identical gene order (translocation of the tRNA(Leu (UUR))). Both are members of the same family, although their external morphologies differed so greatly (e.g., round vs. pointed head) that they have been placed in different subfamilies Macrouroidinae and Trachyrincinae, respectively. Additionally, we determined the whole mitogenome sequences of two other species, Bathygadus antrodes and Ventrifossa garmani, representing a total of four subfamilies currently recognized within Macrouridae. The latter two species also exhibited gene rearrangements, resulting in a total of three different patterns of unique gene order being observed in the four subfamilies. Partitioned Bayesian analysis was conducted using available whole mitogenome sequences from five macrourids plus five outgroups. The resultant trees clearly indicated that S. modificatus and T. murrayi formed a monophyletic group, having a sister relationship to other macrourids. Thus, monophyly of the two species with disparate head morphologies was corroborated by two different lines of evidence (nucleotide sequences and gene order). The overall topology of the present tree differed from any of the previously proposed, morphology-based phylogenetic hypotheses.
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Affiliation(s)
- Takashi P Satoh
- Ocean Research Institute, The University of Tokyo, 1-15-1 Minamidai, Nakano-ku, Tokyo 164-8639, Japan
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25
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Zhan XJ, Zhang ZW. Molecular phylogeny of avian genus Syrmaticus based on the mitochondrial cytochrome B gene and control region. Zoolog Sci 2005; 22:427-35. [PMID: 15846051 DOI: 10.2108/zsj.22.427] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mitochondrial DNA cytochrome b (cyt b) and control region (CR) nucleotide sequences were used to study the molecular phylogeny of the genus Syrmaticus. We found that the substitution rates among the three codon positions of cyt b were heterogeneous and the transition-transversion ratio was highly biased. As to CR sequences of the genus, most variable sites were in the peripheral domains. All molecular phylogenetic trees based on the two genes showed that: 1) the Syrmaticus was monophyletic and included five species with the following cladistic relationship: (S. reevesii, (S. soemmerringii, (S. mikado, (S. humiae and S. ellioti)))). Using the TN genetic distance of cyt b, we inferred the divergence time of the five species according to putative molecular clock and found that values were largely in agreement with the geological scenarios. The origin and speciation processes of the studied group were inferred by combining molecular and biogeographical evidences.
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Affiliation(s)
- Xiang-Jiang Zhan
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, China
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26
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Pereira SL, Grau ET, Wajntal A. Molecular architecture and rates of DNA substitutions of the mitochondrial control region of cracid birds. Genome 2005; 47:535-45. [PMID: 15190371 DOI: 10.1139/g04-009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The control region (CR) plays an important role in replication and transcription in the mitochondrial genome. Its supposedly high rate of DNA substitution makes it a suitable marker for studies of population and closely related species. Three domains can be identified in CR, each having its own characteristics regarding base composition, pattern of variability and rate of DNA substitution. We sequenced the complete CR for 27 cracids, including all 11 genera to characterize its molecular organization, describe patterns of DNA substitution along the gene, and estimate absolute rates of DNA substitution. Our results show that cracid CR organization and patterns of DNA substitution are typical of other birds. Conserved blocks C and B, fused CSB2/3, and a putative segment for bidirectional replication not usually present in birds were identified in cracids. We also suggest a new delimitation for domains to allow better comparisons among CRs at different taxonomic ranking. Our estimates of absolute rates of DNA substitution show that, in general, CR evolves at a rate slower than that of two protein-coding genes (CR, 0.14%-0.3%; ND2, 0.37%-0.47%; and cytochrome b, 0.29%-0.35% per site per million years within genera). Within CR domains, rates within genera ranged from 0.05% to 0.8% per site per million years.
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Affiliation(s)
- Sergio L Pereira
- Departamento de Biologia, Instituto de Biociências, Universidade de São Paulo, Brazil.
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27
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Sano N, Kurabayashi A, Fujii T, Yonekawa H, Sumida M. Complete nucleotide sequence and gene rearrangement of the mitochondrial genome of the bell-ring frog, Buergeria buergeri (family Rhacophoridae). Genes Genet Syst 2004; 79:151-63. [PMID: 15329496 DOI: 10.1266/ggs.79.151] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In this study we determined the complete nucleotide sequence (19,959 bp) of the mitochondrial DNA of the rhacophorid frog Buergeria buergeri. The gene content, nucleotide composition, and codon usage of B. buergeri conformed to those of typical vertebrate patterns. However, due to an accumulation of lengthy repetitive sequences in the D-loop region, this species possesses the largest mitochondrial genome among all the vertebrates examined so far. Comparison of the gene organizations among amphibian species (Rana, Xenopus, salamanders and caecilians) revealed that the positioning of four tRNA genes and the ND5 gene in the mtDNA of B. buergeri diverged from the common vertebrate gene arrangement shared by Xenopus, salamanders and caecilians. The unique positions of the tRNA genes in B. buergeri are shared by ranid frogs, indicating that the rearrangements of the tRNA genes occurred in a common ancestral lineage of ranids and rhacophorids. On the other hand, the novel position of the ND5 gene seems to have arisen in a lineage leading to rhacophorids (and other closely related taxa) after ranid divergence. Phylogenetic analysis based on nucleotide sequence data of all mitochondrial genes also supported the gene rearrangement pathway.
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Affiliation(s)
- Naomi Sano
- Institute for Amphibian Biology, Hiroshima University, Higashihiroshima, Japan
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28
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Liukkonen-Anttila T, Uimaniemi L, Orell M, Lumme J. Mitochondrial DNA variation and the phylogeography of the grey partridge (Perdix perdix) in Europe: from Pleistocene history to present day populations. J Evol Biol 2002. [DOI: 10.1046/j.1420-9101.2002.00460.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Baba Y, Fujimaki Y, Klaus S, Butorina O, Drovetskii S, Koike H. Molecular population phylogeny of the hazel grouseBonasa bonasiain East Asia inferred from mitochondrial control-region sequences. WILDLIFE BIOLOGY 2002. [DOI: 10.2981/wlb.2002.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Yoshiyuki Baba
- Yoshiyuki Baba & Hiroko Koike, Laboratory of Nature Conservation, SCS, Kyushu University, Ropponmatsu 4-2-1, Chuo-ku, Fukuoka 810-0044, Japan - e-mail addresses: (Yoshiyuki Baba); koike (Hiroko Koike)
| | - Yuzo Fujimaki
- Yuzo Fujimaki, Kita 2-6-1, Higashi 4 jou, Bibai, Hokkaido 072-0005, Japan -
| | - Siegfried Klaus
- Siegfried Klaus, Thüringer Landesanstalt für Umwelt & Geologie, Prüssingerstrasse 25, D-07749 Jena, Germany - e-mail: S
| | - Olga Butorina
- Olga Butorina, Institute of Biological Problems of the North, Academy of Science, Marx Street 24,68500 Magadan, Russia -
| | - Serguei Drovetskii
- Serguei Drovetskii, University of Washington, Burke Museum, Box 353010, Seattle, WA 98105-3010, USA -
| | - Hiroko Koike
- Yoshiyuki Baba & Hiroko Koike, Laboratory of Nature Conservation, SCS, Kyushu University, Ropponmatsu 4-2-1, Chuo-ku, Fukuoka 810-0044, Japan - e-mail addresses: (Yoshiyuki Baba); koike (Hiroko Koike)
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Nishibori M, Hayashi T, Tsudzuki M, Yamamoto Y, Yasue H. Complete sequence of the Japanese quail (Coturnix japonica) mitochondrial genome and its genetic relationship with related species. Anim Genet 2001; 32:380-5. [PMID: 11736810 DOI: 10.1046/j.1365-2052.2001.00795.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The Japanese quail (Coturnix japonica; JQ) is one of the domesticated fowl species of Japan. To provide DNA sequence information for examination of its phylogenetic position in the order Galliformes, the complete sequence of the JQ mitochondria was determined. Sequence analysis revealed that the JQ mitochondrial genome is a circular DNA of 16 697 basepairs (bp), which is smaller than the chicken mitochondrial DNA of 16 775 bp, but the genomic structure of JQ mitochondria was the same as that of the chicken. The sequence homologies of all mitochondrial genes including those for 12S and 16S ribosomal RNA (rRNA), between Japanese quail and chicken ranged from 78.0 to 89.9%. Because the sequences of NADH dehydrogenase subunit 2 and cytochrome b genes had been reported in five species [Phasianus colchicus (ring-neck pheasant: RP), Gallus gallus domesticus (chicken: CH), Perdix perdix (grey partridge: GP), Bambusicola thoracia (Chinese bamboo partridge: CP), and Aythya americana (redhead: RH)], the concatenated nucleotide sequences (2184 bp) and amino acid sequences of these two genes were used in a phylogenetic analysis of JQ against these five species using a maximum likelihood (ML) method. Using the first and second bases of the codons, and the third base of the codons indicated a phylogenic tree of [RH, (RP, GP), (JQ, (CH, CP))]. A phylogenic tree of [RH, JQ, (RP, GP), (CH, CP)] was determined using amino acid sequences. Because the local bootstrap values for the JQ branch in these trees are not high, additional sequence is necessary for construction of a reliable tree.
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Affiliation(s)
- M Nishibori
- Genome Research Department, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan
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31
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Sumida M, Kanamori Y, Kaneda H, Kato Y, Nishioka M, Hasegawa M, Yonekawa H. Complete nucleotide sequence and gene rearrangement of the mitochondrial genome of the Japanese pond frog Rana nigromaculata. Genes Genet Syst 2001; 76:311-25. [PMID: 11817647 DOI: 10.1266/ggs.76.311] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In this study, we determined the complete nucleotide sequence of the mitochondrial genome of the Japanese pond frog Rana nigromaculata. The length of the sequence of the frog was 17,804 bp, though this was not absolute due to length variation caused by differing numbers of repetitive units in the control regions of individual frogs. The gene content, base composition, and codon usage of the Japanese pond frog conformed to those of typical vertebrate patterns. However, the comparison of gene organization between three amphibian species (Rana, Xenopus and caecilian) provided evidence that the gene arrangement of Rana differs by four tRNA gene positions from that of Xenopus or caecilian, a common gene arrangement in vertebrates. These gene rearrangements are presumed to have occurred by the tandem duplication of a gene region followed by multiple deletions of redundant genes. It is probable that the rearrangements start and end at tRNA genes involved in the initial production of a tandemly duplicated gene region. Putative secondary structures for the 22 tRNAs and the origin of the L-strand replication (OL) are described. Evolutionary relationships were estimated from the concatenated sequences of the 12 proteins encoded in the H-strand of mtDNA among 37 vertebrate species. A quartet-puzzling tree showed that three amphibian species form a monophyletic clade and that the caecilian is a sister group of the monophyletic Anura.
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Affiliation(s)
- M Sumida
- Laboratory for Amphibian Biology, Graduate School of Science, Hiroshima University, Higashihiroshima, Japan.
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Randi E, Lucchini V, Hennache A, Kimball RT, Braun EL, Ligon JD. Evolution of the mitochondrial DNA control region and cytochrome b genes and the inference of phylogenetic relationships in the avian genus Lophura (Galliformes). Mol Phylogenet Evol 2001; 19:187-201. [PMID: 11341802 DOI: 10.1006/mpev.2001.0922] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The entire mitochondrial DNA control region (mtDNA CR) and cytochrome b (cyt b) genes were sequenced in 10 of the 11 extant species of gallopheasants (Lophura). The cyt b from L. diardi and L. ignita showed unusual leucine-coding codons at the expected terminal 3' end of the gene. Presence of conserved functional motifs in the inferred amino acid sequences, conserved secondary structures of the flanking tRNA(Pro) and tRNA(Thr), and Southern hybridization concordantly suggest that these cyt b represent functional mitochondrial genes and not nuclear transpositions. Functional stop codons can be generated by RNA editing of the primary transcripts from these sequences. Despite strong site and domain substitution rate heterogeneity, CR and cyt b diverged at similar rates, on average, and expressed congruent phylogenetic signals. Phylogenetic analyses of the concatenated sequences split Lophura into five clades including (1) L. bulweri, (2) L. diardi-L. ignita, (3) L. erythrophthalma-L. inornata, (4) L. leucomelanos-L. nycthemera, and (5) L. swinhoii-L. edwardsi-L. hatinhensis. Basal relationships among these clades, which include species distributed in continental South East Asia and the Sundaland archipelago, were weakly resolved, suggesting the occurrence of rapid cladogenic events in the early evolutionary history of Lophura. A conventional calibration of mtDNA sequence divergence indicates a mid to late Pliocene evolution of the main clades in Lophura, which could have diversified in allopatry in continental South East Asia. Sundaland could have been colonized lately and independently by the different clades. Consequently, cyclic changes in late Pleistocene climate and landscape might not have increased rates of speciation in genus Lophura in Sundaland.
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Affiliation(s)
- E Randi
- Istituto Nazionale per la Fauna Selvatica, Via Cà Fornacetta 9, Ozzano dell'Emilia (BO), 40064, Italy.
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Abstract
Molecular clocks can be calibrated using fossils within the group under study (internal calibration) or outside of the group (external calibration). Both types of calibration have their advantages and disadvantages. An internal calibration may reduce extrapolation error but may not be from the best fossil record, raising the issue of nonindependence. An external calibration may be more independent but also may have a greater extrapolation error. Here, we used the advantages of both methods by applying a sequential calibration to avian molecular clocks. We estimated a basal divergence within birds, the split between fowl (Galliformes) and ducks (Anseriformes), to be 89.8 +/- 6.97 MYA using an external calibration and 12 rate-constant nuclear genes. In turn, this time estimate was used as an internal calibration for three species-rich avian molecular data sets: mtDNA, DNA-DNA hybridization, and transferrin immunological distances. The resulting time estimates indicate that many major clades of modern birds had their origins within the Cretaceous. This supports earlier studies that identified large gaps in the avian fossil record and suggests that modern birds may have coexisted with other avian lineages for an extended period during the Cretaceous. The new time estimates are concordant with a continental breakup model for the origin of ratites.
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Affiliation(s)
- M van Tuinen
- Department of Biology, Institute of Molecular Evolutionary Genetics, Pennsylvania State University, University Park, PA 16802, USA
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34
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Abstract
The complete nucleotide sequence of the mitochondrial genome of the crinoid Florometra serratissima has been determined. It is a circular DNA molecule, 16,005 bp in length, containing the genes for 13 proteins, small and large ribosomal RNAs, and 22 transfer RNAs (tRNAs). Three regions of unassigned sequence (UAS) greater than 73 bp have been located. The largest, UAS I, is 432 bp long and exhibits sequence similarity to the putative mitochondrial control regions seen in other animals. UAS II (77 bp) and UAS III (73 bp) are located between the 5' ends of coding sequences and may play roles as bidirectional promoters. Analyses of nucleotide composition revealed that the major peptide-encoding strand is high in T and low in C. This bias is reflected in a specific pattern of codon usage. Molecular phylogenetic analyses based on cytochrome c oxidase (COI, COII, and COIII) amino acid and nucleotide sequences did not resolve all the relationships between echinoderm classes. The overall animal mitochondrial gene content has been maintained in the crinoid, but there is extensive rearrangement with respect to both the echinoid and the asteroid mtDNA gene maps. Florometra serratissima has a novel genome organization in a segment containing most of the tRNA genes, large and small rRNA genes, and the NADH dehydrogenase subunit 1 and 2 genes. Potential pathways and mechanisms for gene rearrangements between mitochondrial gene maps of echinoderm classes and vertebrates are discussed as indicators of early deuterostome phylogeny.
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Affiliation(s)
- A Scouras
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia, Canada
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35
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Abstract
With the advent of DNA sequencing techniques the organization of the vertebrate mitochondrial genome shows variation between higher taxonomic levels. The most conserved gene order is found in placental mammals, turtles, fishes, some lizards and Xenopus. Birds, other species of lizards, crocodilians, marsupial mammals, snakes, tuatara, lamprey, and some other amphibians and one species of fish have gene orders that are less conserved. The most probable mechanism for new gene rearrangements seems to be tandem duplication and multiple deletion events, always associated with tRNA sequences. Some new rearrangements seem to be typical of monophyletic groups and the use of data from these groups may be useful for answering phylogenetic questions involving vertebrate higher taxonomic levels. Other features such as the secondary structure of tRNA, and the start and stop codons of protein-coding genes may also be useful in comparisons of vertebrate mitochondrial genomes.
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36
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Avise JC, Nelson WS, Bowen BW, Walker D. Phylogeography of colonially nesting seabirds, with special reference to global matrilineal patterns in the sooty tern (Sterna fuscata). Mol Ecol 2000; 9:1783-92. [PMID: 11091314 DOI: 10.1046/j.1365-294x.2000.01068.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Sooty tern (Sterna fuscata) rookeries are scattered throughout the tropical oceans. When not nesting, individuals wander great distances across open seas, but, like many other seabirds, they tend to be site-faithful to nesting locales in successive years. Here we examine the matrilineal history of sooty terns on a global scale. Assayed colonies within an ocean are poorly differentiated in mitochondrial DNA sequence, a result indicating tight historical ties. However, a shallow genealogical partition distinguishes Atlantic from Indo-Pacific rookeries. Phylogeographic patterns in the sooty tern are compared to those in other colonially nesting seabirds, as well as in the green turtle (Chelonia mydas), an analogue of tropical seabirds in some salient aspects of natural history. Phylogeographic structure within an ocean is normally weak in seabirds, unlike the pronounced matrilineal structure in green turtles. However, the phylogeographic partition between Atlantic and Indo-Pacific rookeries in sooty terns mirrors, albeit in shallower evolutionary time, the major matrilineal subdivision in green turtles. Thus, global geology has apparently influenced historical gene movements in these two circumtropical species.
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Affiliation(s)
- J C Avise
- Department of Genetics, University of Georgia, Athens, GA, 30602, Department of Fisheries and Aquatic Sciences, University of Florida, Gainesville, FL, 32653-3071, USA.
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37
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Piertney SB, MacColl AD, Bacon PJ, Racey PA, Lambin X, Dallas JF. Matrilineal genetic structure and female-mediated gene flow in red grouse (Lagopus lagopus scoticus): an analysis using mitochondrial DNA. Evolution 2000; 54:279-89. [PMID: 10937204 DOI: 10.1111/j.0014-3820.2000.tb00028.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
DNA sequence variation at the hypervariable 5' end of the mitochondrial control region was examined in 247 individuals to detect genetic divergence among 14 populations of red grouse (Lagopus lagopus scoticus) in northeastern Scotland. Ten haplotypes were resolved, several of which were shared among populations. Analysis of molecular variance, Nei's gamma ST, and a cladistic estimate of the amount of gene flow indicated a lack of overall population differentiation. Patterns of overall panmixia are in stark contrast to previous reports of localized subdivision among the same set of populations detected using hypervariable microsatellite markers. Because grouse cocks are territorial and show extreme natal philopatry and females are the dispersing sex, such discordance could be explained by sex-biased dispersal, with extensive female-mediated gene flow preventing mitochondrial DNA divergence. However, it is difficult to reconcile how effective dispersal of females would not homogenize both mitochondrial and nuclear structure simultaneously. We use a model that examines the spatial and temporal dynamics of diparentally and uniparentally inherited genes to show that, under realistic ecological scenarios and with specific differences in the dispersal of males and females, the local effective size of the nuclear genome can be less than that of the mitochondrial and the patterns of structuring we observe are meaningful.
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Affiliation(s)
- S B Piertney
- Department of Zoology, University of Aberdeen, United Kingdom.
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38
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Piertney SB, MacColl ADC, Bacon PJ, Racey PA, Lambin X, Dallas JF. MATRILINEAL GENETIC STRUCTURE AND FEMALE-MEDIATED GENE FLOW IN RED GROUSE (LAGOPUS LAGOPUS SCOTICUS): AN ANALYSIS USING MITOCHONDRIAL DNA. Evolution 2000. [DOI: 10.1554/0014-3820(2000)054[0279:mgsafm]2.0.co;2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Abstract
Animal mitochondrial DNA is a small, extrachromosomal genome, typically approximately 16 kb in size. With few exceptions, all animal mitochondrial genomes contain the same 37 genes: two for rRNAs, 13 for proteins and 22 for tRNAs. The products of these genes, along with RNAs and proteins imported from the cytoplasm, endow mitochondria with their own systems for DNA replication, transcription, mRNA processing and translation of proteins. The study of these genomes as they function in mitochondrial systems-'mitochondrial genomics'-serves as a model for genome evolution. Furthermore, the comparison of animal mitochondrial gene arrangements has become a very powerful means for inferring ancient evolutionary relationships, since rearrangements appear to be unique, generally rare events that are unlikely to arise independently in separate evolutionary lineages. Complete mitochondrial gene arrangements have been published for 58 chordate species and 29 non-chordate species, and partial arrangements for hundreds of other taxa. This review compares and summarizes these gene arrangements and points out some of the questions that may be addressed by comparing mitochondrial systems.
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Affiliation(s)
- J L Boore
- Department of Biology, University of Michigan, 830 North University Avenue, Ann Arbor, MI 48109-1048, USA.
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40
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Mindell DP, Sorenson MD, Dimcheff DE. Multiple independent origins of mitochondrial gene order in birds. Proc Natl Acad Sci U S A 1998; 95:10693-7. [PMID: 9724766 PMCID: PMC27957 DOI: 10.1073/pnas.95.18.10693] [Citation(s) in RCA: 182] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Mitochondrial genomes of all vertebrate animals analyzed to date have the same 37 genes, whose arrangement in the circular DNA molecule varies only in the relative position of a few genes. This relative conservation suggests that mitochondrial gene order characters have potential utility as phylogenetic markers for higher-level vertebrate taxa. We report discovery of a mitochondrial gene order that has had multiple independent originations within birds, based on sampling of 137 species representing 13 traditionally recognized orders. This provides evidence of parallel evolution in mitochondrial gene order for animals. Our results indicate operation of physical constraints on mitochondrial gene order changes and support models for gene order change based on replication error. Bird mitochondria have a displaced OL (origin of light-strand replication site) as do various other Reptilia taxa prone to gene order changes. Our findings point to the need for broad taxonomic sampling in using mitochondrial gene order for phylogenetic analyses. We found, however, that the alternative mitochondrial gene orders distinguish the two primary groups of songbirds (order Passeriformes), oscines and suboscines, in agreement with other molecular as well as morphological data sets. Thus, although mitochondrial gene order characters appear susceptible to some parallel evolution because of mechanistic constraints, they do hold promise for phylogenetic studies.
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Affiliation(s)
- D P Mindell
- Department of Biology and Museum of Zoology, University of Michigan, Ann Arbor, MI 48109, USA
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41
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Abstract
The evolutionary relationships of the three orders of living amphibians (lissamphibians) has been difficult to resolve, partly because of their specialized morphologies. Traditionally, frogs and salamanders are considered to be closest relatives, and all three orders are thought to have arisen in the Paleozoic (>250 myr). Here, we present evidence from the DNA sequences of four mitochondrial genes (2.7 kilobases) that challenges the conventional hypothesis and supports a salamander-caecilian relationship. This, in light of the fossil record and distribution of the families, suggests a more recent (Mesozoic) origin for salamanders and caecilians directly linked to the initial breakup of the supercontinent Pangaea. We propose that this single geologic event isolated salamanders and archaeobatrachian frogs on the northern continents (Laurasia) and the caecilians and neobatrachian frogs on the southern continents (Gondwana). Among the neobatrachian frog families, molecular evidence supports a South American clade and an African clade, inferred here to be the result of mid-Cretaceous vicariance.
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Affiliation(s)
- A E Feller
- Department of Biology and Institute of Molecular Evolutionary Genetics, Pennsylvania State University, 208 Mueller Laboratory, University Park, Pennsylvania, 16802, USA
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42
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Bloomer P, Crowe TM. Francolin phylogenetics: molecular, morphobehavioral, and combined evidence. Mol Phylogenet Evol 1998; 9:236-54. [PMID: 9562983 DOI: 10.1006/mpev.1997.0469] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The phylogenetics of francolins (Francolinus species) were reassessed by obtaining 660 bp of sequence of the mitochondrial DNA (mtDNA) cytochrome b gene from 20 species, the Common Quail Coturnix coturnix africana, and the Madagascar Partridge Margaroperdix madagarensis. Published sequences of the Japanese Quail C. c. japonica, Alectoris partridges, and the Junglefowl Gallus gallus were also included. Separate analysis of the 200 phylogenetically informative cytochrome b characters and the 25 informative morphobehavioral characters, as well as a combined analysis of molecular and morphobehavioral data, do not support francolin monophyly but provide strong evidence for two previously suggested clades--the quail-francolins (or partridges) and the partridge-francolins (pheasants/francolins). The quail-francolin clade comprises three groups of African francolins and three Asian species that were previously considered more closely related to the partridge-francolins. The partridge-francolin clade, which includes four groups of African francolins, forms a sister group to the Coturnix quails, the Madagascar Partridge, and the Alectoris partridges. The molecular data suggest that the two francolin clades diverged approximately 3-6 MYA. Climatic fluctuations of the past 2.5 MYA may have led to the diversification of the ecologically different francolin species groups and speciation within them.
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Affiliation(s)
- P Bloomer
- Percy FitzPatrick Institute, University of Cape Town, Rondebosch, South Africa
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43
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Springer MS, Douzery E. Secondary structure and patterns of evolution among mammalian mitochondrial 12S rRNA molecules. J Mol Evol 1996; 43:357-73. [PMID: 8798341 DOI: 10.1007/bf02339010] [Citation(s) in RCA: 140] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Forty-nine complete 12S ribosomal RNA (rRNA) gene sequences from a diverse assortment of mammals (one monotreme, 11 marsupials, 37 placentals), including 11 new sequences, were employed to establish a "core" secondary structure model for mammalian 12S rRNA. Base-pairing interactions were assessed according to the criteria of potential base-pairing as well as evidence for base-pairing in the form of compensatory mutations. In cases where compensatory evidence was not available among mammalian sequences, we evaluated evidence among other vertebrate 12S rRNAs. Our results suggest a core model for secondary structure in mammalian 12S rRNAs with deletions as well as additions to the Gutell (1994: Nucleic Acids Res. 22) models for Bos and Homo. In all, we recognize 40 stems, 34 of which are supported by at least some compensatory evidence within Mammalia. We also investigated the occurrence and conservation in mammalian 12S rRNAs of nucleotide positions that are known to participate in the decoding site in E. coli. Twenty-four nucleotide positions known to participate in the decoding site in E. coli also occur among mammalian 12S rRNAs and 17 are invariant for the same base as in E. coli. Patterns of nucleotide substitution were assessed based on our secondary structure model. Transitions in loops become saturated by approximately 10-20 million years. Transitions in stems, in turn, show partial saturation at 20 million years but divergence continues to increase beyond 100 million years. Transversions accumulate linearly beyond 100 million years in both stems and loops although the rate of accumulation of transversions is three- to fourfold higher in loops. Presumably, this difference results from constraints to maintain pairing in stems.
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Affiliation(s)
- M S Springer
- Department of Biology, University of California, Riverside, CA 92521, USA
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44
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Liu HT, Hu YH, Wang CT, Lin LY. Sequences and comparisons of duck mitochondrial DNA control regions. Comp Biochem Physiol B Biochem Mol Biol 1996; 115:209-14. [PMID: 8939001 DOI: 10.1016/0305-0491(96)00118-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this study, the nucleotide sequences of the displacement loop (D-loop) and the ribosomal RNA genes of mitochondrial DNA (mtDNA) were determined from a representative each of two genera of ducks, Cainina muschata and Anas platyrhynchos. The duck mtDNA shows a specific gene order at 5' upstream of D-loop (5'ND6-tRNA(Glu)-D-loop3') that is identical to chick mtDNA but is different from that of mammalian or amphibian (5' cytochrome b-tRNA(Thr)-tRNA(Pro)-D-loop3'). Nucleotide diversity is greatest in the D-loop while being most conserved in the 12S rRNA gene, as indicated from a sequence comparison between duck and chick mtDNA. A consensus sequence in the D-loop region, which may play influential roles in the regulation of transcription and replication of mtDNA, was found in both CSB-1 and repeated sequences of birds. Sequences of four tRNA genes in this region are also reported. Among them, tRNA(Glu) shows the greatest sequence divergence when different order of birds are compared.
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Affiliation(s)
- H T Liu
- Institute of Radiation Biology, National Tsing Hua University, Hsinchu, Taiwan, ROC
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45
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46
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Lee PL, Clayton DH, Griffiths R, Page RD. Does behavior reflect phylogeny in swiftlets (Aves: Apodidae)? A test using cytochrome b mitochondrial DNA sequences. Proc Natl Acad Sci U S A 1996; 93:7091-6. [PMID: 8692950 PMCID: PMC38941 DOI: 10.1073/pnas.93.14.7091] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Swiftlets are small insectivorous birds, many of which nest in caves and are known to echolocate. Due to a lack of distinguishing morphological characters, the taxonomy of swiftlets is primarily based on the presence or absence of echolocating ability, together with nest characters. To test the reliability of these behavioral characters, we constructed an independent phylogeny using cytochrome b mitochondrial DNA sequences from swiftlets and their relatives. This phylogeny is broadly consistent with the higher classification of swifts but does not support the monophyly of swiftlets. Echolocating swiftlets (Aerodramus) and the nonecholocating "giant swiftlet" (Hydrochous gigas) group together, but the remaining nonecholocating swiftlets belonging to Collocalia are not sister taxa to these swiftlets. While echolocation may be a synapomorphy of Aerodramus (perhaps secondarily lost in Hydrochous), no character of Aerodramus nests showed a statistically significant fit to the molecular phylogeny, indicating that nest characters are not phylogenetically reliable in this group.
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Affiliation(s)
- P L Lee
- Department of Zoology, University of Oxford, United Kingdom
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47
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Fumihito A, Miyake T, Takada M, Ohno S, Kondo N. The genetic link between the Chinese bamboo partridge (Bambusicola thoracica) and the chicken and junglefowls of the genus Gallus. Proc Natl Acad Sci U S A 1995; 92:11053-6. [PMID: 7479935 PMCID: PMC40569 DOI: 10.1073/pnas.92.24.11053] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Further comparison of mitochondrial control-region DNA base sequences of 16 avian species belonging to the subfamily Phasianinae revealed the following: (i) Generalized perdicine birds (quails and partridges) are of ancient lineages. Even the closest pair, the common quail (Coturnix coturnix japonica) and the Chinese bamboo partridge (Bambusicola thoracica), maintained only 85.71% identity. (ii) The 12 species of phasianine birds previously and presently studied belonged to three distinct branches. The first branch was made exclusively of members of the genus Gallus, while the second branch was made of pheasants of the genera Phasianus, Chrysolophus, and Syrmaticus. Gallopheasants of the genus Lophura were distant cousins to these pheasants. The great argus (Argusianus argus) and peafowls of the genus Pavo constituted the third branch. The position of peacock-pheasants of the genus Polyplectron in the third branch was similar to that of the genus Lophura in the second branch. Members of the fourth phasianine branch, such as tragopans and monals, were not included in the present study. (iii) The one perdicine species, Bambusicola thoracica, was more closely related to phasianine genera Gallus and Pavo than to members of other perdicine genera. The above might indicate that Bambusicola belong to one-stem perdicine lineage that later splits into two sublineages that yielded phasianine birds, one evolving to Gallus, and the other differentiating toward Pavo and its allies.
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Affiliation(s)
- A Fumihito
- Yamashina Institute for Ornithology, Chiba Prefecture, Japan
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48
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Nass MM. Precise sequence assignment of replication origin in the control region of chick mitochondrial DNA relative to 5' and 3' D-loop ends, secondary structure, DNA synthesis, and protein binding. Curr Genet 1995; 28:401-9. [PMID: 8575011 DOI: 10.1007/bf00310807] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The data reported identify for the first time the sequence of an avian mitochondrial heavy-strand replication origin, OH, located only about 12 nucleotides (nt) downstream from the conserved sequence block CSB-1, as well as the sequence of premature synthesis arrest of the 781 (+/-1) nt D-loop strand, only 6-7 nt downstream from a TAS-like (termination-associated) element. Both sites are associated with putative cruciform secondary structures. A major sequence-specific DNA-binding/cleavage site of a potential regulatory protein, the approximately 36-kDa aMDP1 (shown previously to stimulate mtDNA synthesis), is located about 90 nt upstream of OH. Correlated in vivo analysis of avian genome-length mtDNA replication provides missing evidence on the functional equivalence of D-loop origin with nascent initiation, and on the direction, asymmetry and temporal aspects of a full round of replication. The importance of the results to understanding the regulation of linked replication/transcription and the unusual sequence evolution of avian mtDNA is
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Affiliation(s)
- M M Nass
- Department of Radiation Oncology, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
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49
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Zhang DX, Szymura JM, Hewitt GM. Evolution and structural conservation of the control region of insect mitochondrial DNA. J Mol Evol 1995; 40:382-91. [PMID: 7769615 DOI: 10.1007/bf00164024] [Citation(s) in RCA: 220] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The control regions of mitochondrial DNA of two insects, Schistocerca gregaria and Chorthippus parallelus, have been isolated and sequenced. Their sizes are 752 bp and 1,512 bp, respectively, with the presence of a tandem repeat in C. parallelus. (The sequences of the two repeats are highly conserved, having a homology of 97.5%.) Comparison of their nucleotide sequences revealed the presence of several conserved sequence blocks dispersed through the whole control region, showing a different evolutionary pattern of this region in these insects as compared to that in Drosophila. A highly conserved secondary structure, located in the 3' region near the small rRNA gene, has been identified. Sequences immediately flanking this hairpin structure rather than the sequences of this structure themselves are conserved between S. gregaria/C. parallelus and Drosophila, having a sequence consensus of "TATA" at 5' and "GAA(A)T" at 3'. The motif "G(A)nT" is also present in the 3' flanking sequences of mammalian, amphibian, and fish mitochondrial L-strand replication origins and a potential plant mitochondrial second-strand-replication origin, indicating its universal conservation and functional importance related to replication origins. The stem-and-loop structure in S. gregaria/C. parallelus appears to be closely related to that found in Drosophila despite occupying a different position, and may be potentially associated with a second-strand-replication origin. This in turn suggests that such a secondary structure might be widely conserved across invertebrates while their location in the control region may be variable. We have looked for such a conserved structure in the control regions of two other insects, G. firmus and A. mellifera, whose DNA sequences have been published, and their possible presence is discussed. Mitochondrial control regions characterized to date in five different insect taxa (Drosophila, G. firmus, A. mellifera, S. gregaria, and C. parallelus) may be classed into two distinct groups having different evolutionary patterns. It is observed that tandem repetition of regions containing a probable replication origin occurred in some species from disjunct lineages in both groups, which would be the result of convergent evolution. We also discuss the possibility of a mechanism of "parahomologous recombination by unequal crossing-over" in mitochondria, which can explain the generation of such tandemly repeated sequences (especially the first critical repetition) in the control region of mtDNA, and also their convergent evolution in disjunct biological lineages during evolution.
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Affiliation(s)
- D X Zhang
- School of Biological Sciences, University of East Anglia, Norwich, United Kingdom
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50
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Berg T, Moum T, Johansen S. Variable numbers of simple tandem repeats make birds of the order ciconiiformes heteroplasmic in their mitochondrial genomes. Curr Genet 1995; 27:257-62. [PMID: 7736611 DOI: 10.1007/bf00326158] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We have analyzed a variable domain of the mitochondrial DNA control region of 18 avian species. Intra-individual length variation was identified and characterized in 15 species. The occurrence of heteroplasmy among species is phylogenetically consistent with a current classification of birds. Polymerase chain reaction amplifications, direct sequencing, and Southern analysis of mitochondrial DNA showed that the heteroplasmy is due to variable numbers of direct repeats in a tandem organization, located in the control region close to the tRNAPhe gene. The tandem repeats consist of short sequence motifs that vary in size from 4 to 32 base pairs between species. Sequence complexity of the repeat motifs was low, with almost exclusively Ts and Gs in the heavy-strand. Extensive variation in the copy number of the repeats was seen both intra-specifically and within individuals. This is the first report of mitochondrial heteroplasmy characterized at the sequence level in birds.
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MESH Headings
- Animals
- Base Sequence
- Birds/classification
- Birds/genetics
- Blotting, Southern
- DNA, Mitochondrial/chemistry
- DNA, Mitochondrial/genetics
- Genetic Heterogeneity
- Minisatellite Repeats
- Molecular Sequence Data
- NADH Dehydrogenase/genetics
- Phylogeny
- Polymerase Chain Reaction
- Promoter Regions, Genetic
- RNA, Transfer, Glu/genetics
- RNA, Transfer, Phe/chemistry
- RNA, Transfer, Phe/genetics
- Replication Origin
- Sequence Homology, Nucleic Acid
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Affiliation(s)
- T Berg
- Department of Cell Biology, University of Tromsø, Norway
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