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Gendron EMS, Qing X, Sevigny JL, Li H, Liu Z, Blaxter M, Powers TO, Thomas WK, Porazinska DL. Comparative mitochondrial genomics in Nematoda reveal astonishing variation in compositional biases and substitution rates indicative of multi-level selection. BMC Genomics 2024; 25:615. [PMID: 38890582 PMCID: PMC11184840 DOI: 10.1186/s12864-024-10500-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 06/05/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Nematodes are the most abundant and diverse metazoans on Earth, and are known to significantly affect ecosystem functioning. A better understanding of their biology and ecology, including potential adaptations to diverse habitats and lifestyles, is key to understanding their response to global change scenarios. Mitochondrial genomes offer high species level characterization, low cost of sequencing, and an ease of data handling that can provide insights into nematode evolutionary pressures. RESULTS Generally, nematode mitochondrial genomes exhibited similar structural characteristics (e.g., gene size and GC content), but displayed remarkable variability around these general patterns. Compositional strand biases showed strong codon position specific G skews and relationships with nematode life traits (especially parasitic feeding habits) equal to or greater than with predicted phylogeny. On average, nematode mitochondrial genomes showed low non-synonymous substitution rates, but also high clade specific deviations from these means. Despite the presence of significant mutational saturation, non-synonymous (dN) and synonymous (dS) substitution rates could still be significantly explained by feeding habit and/or habitat. Low ratios of dN:dS rates, particularly associated with the parasitic lifestyles, suggested the presence of strong purifying selection. CONCLUSIONS Nematode mitochondrial genomes demonstrated a capacity to accumulate diversity in composition, structure, and content while still maintaining functional genes. Moreover, they demonstrated a capacity for rapid evolutionary change pointing to a potential interaction between multi-level selection pressures and rapid evolution. In conclusion, this study helps establish a background for our understanding of the potential evolutionary pressures shaping nematode mitochondrial genomes, while outlining likely routes of future inquiry.
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Affiliation(s)
- Eli M S Gendron
- Department of Entomology and Nematology, University of Florida, Gainesville, FL, USA.
| | - Xue Qing
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China.
| | - Joseph L Sevigny
- Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH, USA
- Hubbard Center for Genome Studies, University of New Hampshire, Durham, NH, USA
| | - Hongmei Li
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
| | - Zhiyin Liu
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
| | | | - Thomas O Powers
- Department of Plant Pathology, University of Nebraska, Lincoln, NE, USA
| | - W Kelly Thomas
- Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH, USA
- Hubbard Center for Genome Studies, University of New Hampshire, Durham, NH, USA
| | - Dorota L Porazinska
- Department of Entomology and Nematology, University of Florida, Gainesville, FL, USA
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Chen C, Li J, Ding W, Geng X, Zhang H, Sun Y. First complete mitochondrial genome of Acronictinae (Lepidoptera: Noctuidae): genome description and its phylogenetic implications. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-021-00894-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Kuang W, Yan C, Zhan Z, Guan L, Wang J, Chen J, Li J, Ma G, Zhou X, Jin L. Transcriptional responses of Daphnis nerii larval midgut to oral infection by Daphnis nerii cypovirus-23. Virol J 2021; 18:250. [PMID: 34906167 PMCID: PMC8670114 DOI: 10.1186/s12985-021-01721-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 12/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Daphnis nerii cypovirus-23 (DnCPV-23) is a new type of cypovirus and has a lethal effect on the oleander hawk moth, Daphnis nerii which feeds on leave of Oleander and Catharanthus et al. After DnCPV-23 infection, the change of Daphnis nerii responses has not been reported. METHODS To better understand the pathogenic mechanism of DnCPV-23 infection, 3rd-instar Daphnis nerii larvae were orally infected with DnCPV-23 occlusion bodies and the transcriptional responses of the Daphnis nerii midgut were analyzed 72 h post-infection using RNA-seq. RESULTS The results showed that 1979 differentially expressed Daphnis nerii transcripts in the infected midgut had been identified. KEGG analysis showed that protein digestion and absorption, Toll and Imd signaling pathway were down-regulated. Based on the result, we speculated that food digestion and absorption in insect midgut might be impaired after virus infection. In addition, the down-regulation of the immune response may make D. nerii more susceptible to bacterial infections. Glycerophospholipid metabolism and xenobiotics metabolism were up-regulated. These two types of pathways may affect the viral replication and xenobiotic detoxification of insect, respectively. CONCLUSION These results may facilitate a better understanding of the changes in Daphnis nerii metabolism during cypovirus infection and serve as a basis for future research on the molecular mechanism of DnCPV-23 invasion.
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Affiliation(s)
- Wendong Kuang
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
| | - Chenghua Yan
- School of Life Sciences, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004 China
| | - Zhigao Zhan
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
| | - Limei Guan
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
| | - Jinchang Wang
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
| | - Junhui Chen
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
| | - Jianghuai Li
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
| | - Guangqiang Ma
- School of Life Sciences, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004 China
| | - Xi Zhou
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences (CAS), Wuhan, 430071 China
| | - Liang Jin
- Institute of Microbiology, Jiangxi Academy of Sciences, No. 7777 Changdong Road, Nanchang, 330096 China
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Organization and phylogenetic relationships of the mitochondrial genomes of Speiredonia retorta and other lepidopteran insects. Sci Rep 2021; 11:2957. [PMID: 33536496 PMCID: PMC7859238 DOI: 10.1038/s41598-021-82561-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 01/21/2021] [Indexed: 11/08/2022] Open
Abstract
In this study, we analyzed the complete mitochondrial genome (mitogenome) of Speiredonia retorta, which is a pest and a member of the Lepidoptera order. In total, the S. retorta mitogenome was found to contain 15,652 base pairs encoding 13 protein-coding genes (PCGs), 22 tRNAs, 2 rRNAs, as well as an adenine (A) + thymine (T)-rich region. These findings were consistent with the mitogenome composition of other lepidopterans, as we identified all 13 PCGs beginning at ATN codons. We also found that 11 PCGs terminated with canonical stop codons, whereas cox2 and nad4 exhibited incomplete termination codons. By analyzing the mitogenome of S. retorta using Bayesian inference (BI) and maximum likelihood (ML) models, we were able to further confirm that this species is a member of the Erebidae family.
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Han X, He H, Shen H, Tang J, Dong W, Shi Y, Wu S, Zhang F, Liang G. Comparative mitochondrial genome analysis of Dendrolimus houi (Lepidoptera: Lasiocampidae) and phylogenetic relationship among Lasiocampidae species. PLoS One 2020; 15:e0232527. [PMID: 32407393 PMCID: PMC7224488 DOI: 10.1371/journal.pone.0232527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 04/16/2020] [Indexed: 11/18/2022] Open
Abstract
Dendrolimus houi is one of the most common caterpillars infesting Gymnosperm trees, and widely distributed in several countries in Southeast Asia, and exists soley or coexists with several congeners and some Lasiocampidae species in various forest habitats. However, natural hybrids occasionally occur among some closely related species in the same habitat, and host preference, extreme climate stress, and geographic isolation probably lead to their uncertain taxonomic consensus. The mitochondrial DNA (mtDNA) of D. houi was extracted and sequenced by using high-throughput technology, and the mitogenome composition and characteristics were compared and analyzed of these species, then the phylogenetic relationship was constructed using the maximum likelihood method (ML) and the Bayesian method (BI) based on their 13 protein-coding genes (PCGs) dataset, which were combined and made available to download which were combined and made available to download among global Lasiocampidae species data. Mitogenome of D. houi was 15,373 bp in length, with 37 genes, including 13 PCGs, 22 tRNA genes (tRNAs) and 2 rRNA genes (rRNAs). The positions and sequences of genes were consistent with those of most known Lasiocampidae species. The nucleotide composition was highly A+T biased, accounting for ~80% of the whole mitogenome. All start codons of PCGs belonged to typical start codons ATN except for COI which used CGA, and most stop codons ended with standard TAA or TAG, while COI, COII, ND4 ended with incomplete T. Only tRNASer (AGN) lacked DHU arm, while the remainder formed a typical "clover-shaped" secondary structure. For Lasiocampidae species, their complete mitochondrial genomes ranged from 15,281 to 15,570 bp in length, and all first genes started from trnM in the same direction. And base composition was biased toward A and T. Finally, both two methods (ML and BI) separately revealed that the same phylogenetic relationship of D. spp. as ((((D. punctatus + D. tabulaeformis) + D. spectabilis) + D. superans) + (D. kikuchii of Hunan population + D. houi) as in previous research, but results were different in that D. kikuchii from a Yunnan population was included, indicating that different geographical populations of insects have differentiated. And the phylogenetic relationship among Lasiocampidae species was ((((Dendrolimus) + Kunugia) + Euthrix) + Trabala). This provides a better theoretical basis for Lasiocampidae evolution and classification for future research directions.
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Affiliation(s)
- Xiaohong Han
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Huan He
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Haiyan Shen
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Jinhan Tang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Wanying Dong
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Yufei Shi
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Songqing Wu
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Feiping Zhang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Guanghong Liang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
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6
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Sun Y, Zhu Y, Chen C, Zhu Q, Zhu Q, Zhou Y, Zhou X, Zhu P, Li J, Zhang H. The complete mitochondrial genome of Dysgonia stuposa (Lepidoptera: Erebidae) and phylogenetic relationships within Noctuoidea. PeerJ 2020; 8:e8780. [PMID: 32211241 PMCID: PMC7081777 DOI: 10.7717/peerj.8780] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 02/21/2020] [Indexed: 11/20/2022] Open
Abstract
To determine the Dysgonia stuposa mitochondrial genome (mitogenome) structure and to clarify its phylogenetic position, the entire mitogenome of D. stuposa was sequenced and annotated. The D. stuposa mitogenome is 15,721 bp in size and contains 37 genes (protein-coding genes, transfer RNA genes, ribosomal RNA genes) usually found in lepidopteran mitogenomes. The newly sequenced mitogenome contained some common features reported in other Erebidae species, e.g., an A+T biased nucleotide composition and a non-canonical start codon for cox1 (CGA). Like other insect mitogenomes, the D. stuposa mitogenome had a conserved sequence 'ATACTAA' in an intergenic spacer between trnS2 and nad1, and a motif 'ATAGA' followed by a 20 bp poly-T stretch in the A+T rich region. Phylogenetic analyses supported D. stuposa as part of the Erebidae family and reconfirmed the monophyly of the subfamilies Arctiinae, Catocalinae and Lymantriinae within Erebidae.
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Affiliation(s)
- Yuxuan Sun
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Yeshu Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Chen Chen
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Qunshan Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Qianqian Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Yanyue Zhou
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Xiaojun Zhou
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Peijun Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Jun Li
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
| | - Haijun Zhang
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, China
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7
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Sun Y, Huang H, Zhang X, Xia J, Geng J, Zhang K. The complete mitochondrial genome of the Papilio paris (Lepidoptera: Papilionidae). MITOCHONDRIAL DNA PART B-RESOURCES 2020; 5:733-735. [PMID: 33366725 PMCID: PMC7748820 DOI: 10.1080/23802359.2020.1715281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In the present study, the complete sequence of the mitochondrial genome (mitogenome) of Papilio paris (Lepidoptera: Papilionidae) is described. The mitogenome (15,347 bp) of P. paris encodes 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), two ribosomal RNA genes (rRNAs), and an adenine (A) + thymine (T)-rich region. Its gene complement and order is similar to that of other sequenced Lepidopterans. Phylogenetic analyses based on 13 PCGs using maximum-likelihood (ML) revealed that P. paris resides in the Papilionoidea family. This study provided the valuable evidence on phylogenetic relationship of the P. paris at the molecular level and essential resource for further research on this species.
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Affiliation(s)
- Yu Sun
- Department of Health Inspection and Quarantine, School of Laboratory Medicine, Bengbu Medical College, Bengbu, China.,Research Center of Clinical Laboratory Science, Bengbu Medical College, Bengbu, China
| | - Hua Huang
- Research Center of Clinical Laboratory Science, Bengbu Medical College, Bengbu, China
| | - Xiaojuan Zhang
- Department of Health Inspection and Quarantine, School of Laboratory Medicine, Bengbu Medical College, Bengbu, China
| | - Jun Xia
- Research Center of Clinical Laboratory Science, Bengbu Medical College, Bengbu, China
| | - Jian Geng
- Research Center of Clinical Laboratory Science, Bengbu Medical College, Bengbu, China
| | - Kai Zhang
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
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8
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Nadeem Abbas M, Kausar S, Wang F, Zhao Y, Cui H. Advances in Targeting the Epidermal Growth Factor Receptor Pathway by Synthetic Products and Its Regulation by Epigenetic Modulators As a Therapy for Glioblastoma. Cells 2019; 8:cells8040350. [PMID: 31013819 PMCID: PMC6523687 DOI: 10.3390/cells8040350] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/08/2019] [Accepted: 04/12/2019] [Indexed: 02/07/2023] Open
Abstract
Glioma is the most common primary tumor of the nervous system, and approximately 50% of patients exhibit the most aggressive form of the cancer, glioblastoma. The biological function of epidermal growth factor receptor (EGFR) in tumorigenesis and progression has been established in various types of cancers, since it is overexpressed, mutated, or dysregulated. Its overexpression has been shown to be associated with enhanced metastatic potential in glioblastoma, with EGFR at the top of a downstream signaling cascade that controls basic functional properties of glioblastoma cells such as survival, cell proliferation, and migration. Thus, EGFR is considered as an important therapeutic target in glioblastoma. Many anti-EGFR therapies have been investigated both in vivo and in vitro, making their way to clinical studies. However, in clinical trials, the potential efficacy of anti-EGFR therapies is low, primarily because of chemoresistance. Currently, a range of epigenetic drugs including histone deacetylase (HDAC) inhibitors, DNA methylation and histone inhibitors, microRNA, and different types of EGFR inhibitor molecules are being actively investigated in glioblastoma patients as therapeutic strategies. Here, we describe recent knowledge on the signaling pathways mediated by EGFR/EGFR variant III (EGFRvIII) with regard to current therapeutic strategies to target EGFR/EGFRvIII amplified glioblastoma.
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Affiliation(s)
- Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
- Cancer center, Medical Research Institute, Southwest University, Chongqing 400715, China.
| | - Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
- Cancer center, Medical Research Institute, Southwest University, Chongqing 400715, China.
| | - Feng Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
- Cancer center, Medical Research Institute, Southwest University, Chongqing 400715, China.
| | - Yongju Zhao
- College of Animal and Technology, Southwest University, Chongqing 400715, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
- Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing 400715, China.
- Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Beibei, Chongqing 400715, China.
- Cancer center, Medical Research Institute, Southwest University, Chongqing 400715, China.
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9
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Xu SY, Long JK, Chen XS. Comparative analysis of the complete mitochondrial genomes of five Achilidae species (Hemiptera: Fulgoroidea) and other Fulgoroidea reveals conserved mitochondrial genome organization. PeerJ 2019; 7:e6659. [PMID: 30941275 PMCID: PMC6440461 DOI: 10.7717/peerj.6659] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 02/19/2019] [Indexed: 11/20/2022] Open
Abstract
In the present study, the complete mitochondrial genomes (mitogenomes) of five Achilidae (Hemiptera: Fulgoroidea), Betatropis formosana, two new species (Magadhaideus luodiana sp. nov and Peltatavertexalis horizontalis sp. nov), Plectoderini sp. and Paracatonidia sp., were sequenced for the first time through next-generation sequencing. The five mitogenomes ranged from 15,214 to 16,216 bp in length, with the typical gene content and arrangement usually observed in Hexapods. The motif "ATGATAA" between atp8 and atp6 was found in all the analyzed species. An overlap "AAGCTTA" between trnW and trnC was observed in the mitogenomes of most Fulgoroidea. The structural and compositional analyses of 26 Fulgoroidea mitogenomes, including the gene rearrangement of five tRNAs (trnW, trnC and trnY; trnT and trnP), the A + T content and AT-skew of the whole mitogenomes, and the nuclear acid and amino acid compositions of the protein-coding genes (PCGs), revealed family-level differences between Delphacidae and other families (Achilidae, Flatidae, Fulgoridae, Issidae and Ricaniidae). Phylogenetic analyses of 13 protein-coding genes from 26 Fulgoroidea species by maximum likelihood and Bayesian Inference were consistent and well supported the basal position of Delphacidae, a close affinity among the families Flatidae, Issidae and Ricaniidae, and a close relationship between Achilidae and Fulgoridae.
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Affiliation(s)
- Shi-Yan Xu
- Institute of Entomology, Special Key Laboratory for Development and Utilization of Insect Resources of Guizhou, Guizhou University, Guiyang, Guizhou, China
| | - Jian-Kun Long
- Institute of Entomology, Special Key Laboratory for Development and Utilization of Insect Resources of Guizhou, Guizhou University, Guiyang, Guizhou, China
- College of Animal Sciences, Guizhou University, Guiyang, Guizhou, China
| | - Xiang-Sheng Chen
- Institute of Entomology, Special Key Laboratory for Development and Utilization of Insect Resources of Guizhou, Guizhou University, Guiyang, Guizhou, China
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10
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Li J, Lin RR, Zhang YY, Hu KJ, Zhao YQ, Li Y, Huang ZR, Zhang X, Geng XX, Ding JH. Characterization of the complete mitochondrial DNA of Theretra japonica and its phylogenetic position within the Sphingidae (Lepidoptera, Sphingidae). Zookeys 2018; 754:127-139. [PMID: 29755260 PMCID: PMC5945705 DOI: 10.3897/zookeys.754.23404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/03/2018] [Indexed: 11/25/2022] Open
Abstract
In the present study, the complete mitogenome of Theretra japonica was sequenced and compared with other sequenced mitogenomes of Sphingidae species. The mitogenome of T. japonica, containing 37 genes (13 protein-coding genes, 22 tRNA genes, and two rRNA genes) and a region rich in adenine and thymine (AT-rich region), is a circular molecule with 15,399 base pairs (bp) in length. The order and orientation of the genes in the mitogenome are similar to those of other sequenced mitogenomes of Sphingidae species. All 13 protein-coding genes (PCGs) are initiated by ATN codons except for the cytochrome C oxidase subunit 1 gene (cox1) which is initiated by the codon CGA as observed in other lepidopteran insects. Cytochrome C oxidase subunit 2 gene (cox2) has the incomplete termination codon T and NADH dehydrogenase subunit 1 gene (nad1) terminates with TAG while the remainder terminates with TAA. Additionally, the codon distributions of the 13 PCGs revealed that Ile and Leu2 are the most frequently used codon families and codons CGG, CGC, CCG, CAG, and AGG are absent. The 431 bp AT-rich region includes the motif ATAGA followed by a 23 bp poly-T stretch, short tandem repeats (STRs) of TC and TA, two copies of a 28 bp repeat 'ATTAAATTAATAAATTAA TATATTAATA' and a poly-A element. Phylogenetic analyses within Sphingidae confirmed that T. japonica belongs to the Macroglossinae and showed that the phylogenetic relationship of T. japonica is closer to Ampelophaga rubiginosa than Daphnis nerii. Phylogenetic analyses within Theretra demonstrate that T. japonica, T. jugurtha, T. suffusa, and T. capensis are clustered into one clade.
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Affiliation(s)
- Jun Li
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Rui-Rui Lin
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Yao-Yao Zhang
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Kun-Jie Hu
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Ya-Qi Zhao
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Yan Li
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Zhuo-Ran Huang
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xu Zhang
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xue-Xia Geng
- School of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Jian-Hua Ding
- School of Life Sciences, Huaibei Normal University, Huaibei, China
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Mitochondrial genome of Diaphania indica(saunders) (Lepidoptera: Pyraloidea) and implications for its phylogeny. Int J Biol Macromol 2018; 108:981-989. [DOI: 10.1016/j.ijbiomac.2017.11.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 11/01/2017] [Accepted: 11/02/2017] [Indexed: 11/21/2022]
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12
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Dai LS, Kausar S, Abbas MN, Wang TT. Complete sequence and characterization of the Ectropis oblique mitochondrial genome and its phylogenetic implications. Int J Biol Macromol 2017; 107:1142-1150. [PMID: 28962847 DOI: 10.1016/j.ijbiomac.2017.09.093] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 10/18/2022]
Abstract
In the present study, we sequenced the entire mitochondrial genome (mitogenome) of Ectropis oblique using PCR amplification and sequencing methods The entire mitogenome is 15,356bp long, including 13 protein coding genes, 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes and A+T rich element. The base composition and gene arrangement are identical to those of other lepidopterans. Of these 37 genes, twenty three are resided on heavy strand, while fourteen located on light strand. The newly sequenced mitogenome displayed a biased Adenine/thymine 84.94% usage versus guanine/cytosine. The AT skewness is 0.030 and the GC skewness is -0.180. Twelve out of 13 PCGs initiated with canonical start codon (ATN), while cox1 started with CGA. The A+T rich element of E. oblique is 363bp long and contains of many features common to lepidopteran insects, including the 'ATAGA' motif, a 22bp poly (T) stretch and a microsatellite-like (AT)8 element upstream of trnM. Further, this mitogenome comprises 15 intergenic spacer and overlapping regions. Phylogenetic analyses showed that E. oblique belongs to Geometridae, and that the monophyly of Lepidoptera superfamilies is well supported.
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Affiliation(s)
- Li-Shang Dai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, PR China.
| | - Saima Kausar
- Department of Zoology and Fisheries, University of Agriculture, Faisalabad 38000, Pakistan
| | - Muhammad Nadeem Abbas
- Department of Zoology and Fisheries, University of Agriculture, Faisalabad 38000, Pakistan
| | - Tian-Tian Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, PR China
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