Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of Ophichthidae
The family Ophichthidae has the largest number and the most various species (about 359 valid species) in the order Anguilliformes worldwide. Both morphological and molecular characteristics have been used to assess their taxonomic status. However, due to the ambiguous morphological features, molecul...
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MDPI AG
2023-01-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/13/3/362 |
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| author | Tianyan Yang Yuping Liu Zijun Ning |
| author_facet | Tianyan Yang Yuping Liu Zijun Ning |
| author_sort | Tianyan Yang |
| collection | DOAJ |
| description | The family Ophichthidae has the largest number and the most various species (about 359 valid species) in the order Anguilliformes worldwide. Both morphological and molecular characteristics have been used to assess their taxonomic status. However, due to the ambiguous morphological features, molecular data such as mitochondrial DNA sequences have been implemented for the correct identification and classification of these fishes. In this study, the gene arrangement and structure characteristics of two Ophichthidae mitochondrial genomes were investigated for the first time. The total mitogenome lengths of <i>O. evermanni</i> and <i>O. erabo</i> were 17,759 bp and 17,856 bp, respectively. Comparing with the ancestral mitochondrial gene order, the irregular gene rearrangement happened between <i>ND6</i> and tRNA-Pro (P) genes with another similar control region emerging between tRNA-Thr (T) and <i>ND6</i> genes, which could be explained by the tandem duplication and random loss (TDRL) model appropriately. ML phylogenetic tree demonstrated that the family Ophichthidae was monophyletic origin, but genus <i>Ophichthus</i> might be polyphyletic because of the confused cluster relationships among different species. |
| first_indexed | 2024-03-11T09:54:35Z |
| format | Article |
| id | doaj.art-0241622f264243c9b49ee179490ae69f |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-11T09:54:35Z |
| publishDate | 2023-01-01 |
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| spelling | doaj.art-0241622f264243c9b49ee179490ae69f2023-11-16T15:59:48ZengMDPI AGAnimals2076-26152023-01-0113336210.3390/ani13030362Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of OphichthidaeTianyan Yang0Yuping Liu1Zijun Ning2Fishery College, Zhejiang Ocean University, Zhoushan 316022, ChinaFishery College, Zhejiang Ocean University, Zhoushan 316022, ChinaFishery College, Zhejiang Ocean University, Zhoushan 316022, ChinaThe family Ophichthidae has the largest number and the most various species (about 359 valid species) in the order Anguilliformes worldwide. Both morphological and molecular characteristics have been used to assess their taxonomic status. However, due to the ambiguous morphological features, molecular data such as mitochondrial DNA sequences have been implemented for the correct identification and classification of these fishes. In this study, the gene arrangement and structure characteristics of two Ophichthidae mitochondrial genomes were investigated for the first time. The total mitogenome lengths of <i>O. evermanni</i> and <i>O. erabo</i> were 17,759 bp and 17,856 bp, respectively. Comparing with the ancestral mitochondrial gene order, the irregular gene rearrangement happened between <i>ND6</i> and tRNA-Pro (P) genes with another similar control region emerging between tRNA-Thr (T) and <i>ND6</i> genes, which could be explained by the tandem duplication and random loss (TDRL) model appropriately. ML phylogenetic tree demonstrated that the family Ophichthidae was monophyletic origin, but genus <i>Ophichthus</i> might be polyphyletic because of the confused cluster relationships among different species.https://www.mdpi.com/2076-2615/13/3/362<i>Ophichthus</i>mitochondrial genomegene rearrangementphylogenetic relationship |
| spellingShingle | Tianyan Yang Yuping Liu Zijun Ning Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of Ophichthidae Animals <i>Ophichthus</i> mitochondrial genome gene rearrangement phylogenetic relationship |
| title | Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of Ophichthidae |
| title_full | Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of Ophichthidae |
| title_fullStr | Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of Ophichthidae |
| title_full_unstemmed | Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of Ophichthidae |
| title_short | Comparative Mitogenomic Analysis of Two Snake Eels Reveals Irregular Gene Rearrangement and Phylogenetic Implications of Ophichthidae |
| title_sort | comparative mitogenomic analysis of two snake eels reveals irregular gene rearrangement and phylogenetic implications of ophichthidae |
| topic | <i>Ophichthus</i> mitochondrial genome gene rearrangement phylogenetic relationship |
| url | https://www.mdpi.com/2076-2615/13/3/362 |
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