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| The complete mitochondrial genome sequence of Whitmania pigra (Annelida, Hirudinea): The first representative from the class Hirudinea | |
| Shen, Xin1,2; Wu, Zhigang2; Sun, Ming'an2; Ren, Jianfeng2; Liu, Bin2 | |
| 2011-06-01 | |
| 发表期刊 | COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
 |
| ISSN | 1744-117X |
| 卷号 | 6期号:2页码:133-138 |
| 文章类型 | Article |
| 摘要 | The mitochondrial genome is a significant tool for investigating the evolutionary history of metazoan animals. The currently available mitochondrial genome data in GenBank is limited to understand the detail evolutionary relationship among the metazoan animals, especially in the phylum Annelida. Here we present the mitochondrial gene organization, gene order and codon usage of the leech Whitmania pigra (Annelida), which is the first representative from the class Hirudinea. It is a circular molecule of 14,426 bp, and encodes 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes. All 37 genes of W. pigra mitochondrial genome are transcribed from the same strand, which is identical to studied annelids, two echiurans, two sipunculans and many other lophotrochozoans. Five conserved gene clusters can be found in mitochondrial genomes of nine studied annelids, including (1) cox1-N-cox2; (2) cox3-Q-nad6-cob-W-atp6; (3) H-nad5-F-E-P-T-nad4L-nad4; (4) srRNA-V-IrRNA; and (5) nad3-S(1)-nad2. Compared with that of other studied annelids, translocations of transfer RNAs were found in the gene arrangement of W. pigra mitochondrial genome. Phylogenetic analysis strongly support that the species from Hirudinina and Oligochaeta form a monophyletic group Clitellata (BPM = 100, BPP = 100), which is consistent with previous research based on morphological and other molecular data. Both gene order data and amino acid sequences reveal that echiurans are derived annelids and sipunculans should be clustered with annelids and echiurans. (C) 2010 Elsevier Inc. All rights reserved.; The mitochondrial genome is a significant tool for investigating the evolutionary history of metazoan animals. The currently available mitochondrial genome data in GenBank is limited to understand the detail evolutionary relationship among the metazoan animals, especially in the phylum Annelida. Here we present the mitochondrial gene organization, gene order and codon usage of the leech Whitmania pigra (Annelida), which is the first representative from the class Hirudinea. It is a circular molecule of 14,426 bp, and encodes 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes. All 37 genes of W. pigra mitochondrial genome are transcribed from the same strand, which is identical to studied annelids, two echiurans, two sipunculans and many other lophotrochozoans. Five conserved gene clusters can be found in mitochondrial genomes of nine studied annelids, including (1) cox1-N-cox2; (2) cox3-Q-nad6-cob-W-atp6; (3) H-nad5-F-E-P-T-nad4L-nad4; (4) srRNA-V-IrRNA; and (5) nad3-S(1)-nad2. Compared with that of other studied annelids, translocations of transfer RNAs were found in the gene arrangement of W. pigra mitochondrial genome. Phylogenetic analysis strongly support that the species from Hirudinina and Oligochaeta form a monophyletic group Clitellata (BPM = 100, BPP = 100), which is consistent with previous research based on morphological and other molecular data. Both gene order data and amino acid sequences reveal that echiurans are derived annelids and sipunculans should be clustered with annelids and echiurans. (C) 2010 Elsevier Inc. All rights reserved. |
| 关键词 | Annelida Hirudinea Complete Mitochondrial Genome Phylogeny Gene Order |
| 学科领域 | Biochemistry & Molecular Biology ; Genetics & Heredity |
| DOI | 10.1016/j.cbd.2010.12.001 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000291918900004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/11961 |
| 专题 | 实验海洋生物学重点实验室 |
| 作者单位 | 1.Huaihai Inst Technol, Coll Marine Sci, Jiangsu Key Lab Marine Biotechnol, Lianyungang 222005, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Shen, Xin,Wu, Zhigang,Sun, Ming'an,et al. The complete mitochondrial genome sequence of Whitmania pigra (Annelida, Hirudinea): The first representative from the class Hirudinea[J]. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS,2011,6(2):133-138. |
| APA | Shen, Xin,Wu, Zhigang,Sun, Ming'an,Ren, Jianfeng,&Liu, Bin.(2011).The complete mitochondrial genome sequence of Whitmania pigra (Annelida, Hirudinea): The first representative from the class Hirudinea.COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS,6(2),133-138. |
| MLA | Shen, Xin,et al."The complete mitochondrial genome sequence of Whitmania pigra (Annelida, Hirudinea): The first representative from the class Hirudinea".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 6.2(2011):133-138. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| The complete mitocho（807KB） | 限制开放 | -- | 浏览 | |||
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