Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i>
Gene arrangement (relative location of genes) is another evolutionary marker of the mitogenome that can provide extensive information on the evolutionary mechanism. To explore the evolution of gene arrangements in the mitogenome of diversified Ensifera, we sequenced the mitogenome of the unique dune...
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MDPI AG
2022-10-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/23/20/12094 |
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| author | Zhi-Cuo Dan De-Long Guan Tao Jiang Hang Wang Lu Zhao Sheng-Quan Xu |
| author_facet | Zhi-Cuo Dan De-Long Guan Tao Jiang Hang Wang Lu Zhao Sheng-Quan Xu |
| author_sort | Zhi-Cuo Dan |
| collection | DOAJ |
| description | Gene arrangement (relative location of genes) is another evolutionary marker of the mitogenome that can provide extensive information on the evolutionary mechanism. To explore the evolution of gene arrangements in the mitogenome of diversified Ensifera, we sequenced the mitogenome of the unique dune cricket species found in China and used it for phylogenetic analysis, in combination with 84 known Ensiferan mitogenomes. The mitogenome of <i>Schizodactylus jimo</i> is a 16,428-bp circular molecule that contains 37 genes. We identified eight types of gene arrangement in the 85 ensiferan mitogenomes. The gene location changes (i.e., gene translocation and duplication) were in three gene blocks: I-Q-M-ND2, rrnl-rns-V, and ND3-A-R-N-S-E-F. From the phylogenetic tree, we found that <i>Schizodactylus jimo</i> and most other species share a typical and ancient gene arrangement type (Type I), while Grylloidea has two types (Types II and III), and the other five types are rare and scattered in the phylogenetic tree. We deduced that the tandem replication–random loss model is the evolutionary mechanism of gene arrangements in Ensifera. Selection pressure analysis revealed that purifying selection dominated the evolution of the ensiferan mitochondrial genome. This study suggests that most gene rearrangements in the ensiferan mitogenome are rare accidental events. |
| first_indexed | 2024-03-09T20:07:08Z |
| format | Article |
| id | doaj.art-cca67f0e22fb4764a9e561f2fc598966 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T20:07:08Z |
| publishDate | 2022-10-01 |
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| series | International Journal of Molecular Sciences |
| spelling | doaj.art-cca67f0e22fb4764a9e561f2fc5989662023-11-24T00:28:20ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-10-0123201209410.3390/ijms232012094Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i>Zhi-Cuo Dan0De-Long Guan1Tao Jiang2Hang Wang3Lu Zhao4Sheng-Quan Xu5College of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaCollege of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaCollege of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaCollege of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaCollege of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaCollege of Life Sciences, Shaanxi Normal University, Xi’an 710119, ChinaGene arrangement (relative location of genes) is another evolutionary marker of the mitogenome that can provide extensive information on the evolutionary mechanism. To explore the evolution of gene arrangements in the mitogenome of diversified Ensifera, we sequenced the mitogenome of the unique dune cricket species found in China and used it for phylogenetic analysis, in combination with 84 known Ensiferan mitogenomes. The mitogenome of <i>Schizodactylus jimo</i> is a 16,428-bp circular molecule that contains 37 genes. We identified eight types of gene arrangement in the 85 ensiferan mitogenomes. The gene location changes (i.e., gene translocation and duplication) were in three gene blocks: I-Q-M-ND2, rrnl-rns-V, and ND3-A-R-N-S-E-F. From the phylogenetic tree, we found that <i>Schizodactylus jimo</i> and most other species share a typical and ancient gene arrangement type (Type I), while Grylloidea has two types (Types II and III), and the other five types are rare and scattered in the phylogenetic tree. We deduced that the tandem replication–random loss model is the evolutionary mechanism of gene arrangements in Ensifera. Selection pressure analysis revealed that purifying selection dominated the evolution of the ensiferan mitochondrial genome. This study suggests that most gene rearrangements in the ensiferan mitogenome are rare accidental events.https://www.mdpi.com/1422-0067/23/20/12094<i>schizodactyloidea</i>mitogenomelong-horned orthotperansgene arrangementsevolution |
| spellingShingle | Zhi-Cuo Dan De-Long Guan Tao Jiang Hang Wang Lu Zhao Sheng-Quan Xu Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i> International Journal of Molecular Sciences <i>schizodactyloidea</i> mitogenome long-horned orthotperans gene arrangements evolution |
| title | Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i> |
| title_full | Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i> |
| title_fullStr | Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i> |
| title_full_unstemmed | Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i> |
| title_short | Evolution of Gene Arrangements in the Mitogenomes of Ensifera and Characterization of the Complete Mitogenome of <i>Schizodactylus jimo</i> |
| title_sort | evolution of gene arrangements in the mitogenomes of ensifera and characterization of the complete mitogenome of i schizodactylus jimo i |
| topic | <i>schizodactyloidea</i> mitogenome long-horned orthotperans gene arrangements evolution |
| url | https://www.mdpi.com/1422-0067/23/20/12094 |
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