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Mitochondrial molecular clocks and the origin of the major Otocephalan clades (Pisces : Teleostei): A new insight
Peng, ZG; He, SP; Wang, J; Wang, W; Diogo, R; He, SP, Chinese Acad Sci, Lab Fish Phylogenet & Biogeog, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China
2006-03-29
Source PublicationGENE
ISSN0378-1119
Volume370Issue:*Pages:113-124
AbstractThe Otocephala, a clade including ostariophysan and clupeomorph telcosts, represents about a quarter of total fish species diversity, with about 1000 gencra and more than 7000 species. A series of recent papers have defended that the origin of this clade and of its major groups may be significantly older than the oldest fossils of each of these groups suggest. Some of these recent papers explicitly defend a Pangean origin for some otocephalan groups Such as the Siluriformes or Cypriniformes. To know whether or not the otocephalans as a whole, and particularly the mainly freshwater, cosmopolitan otophysans could have originated before the splitting of the Pangean Supercontinent is of extreme importance, since otophysan fishes are among the most useful animal groups for the determination of historical continental relationships. In the present work we examined divergence times for each major otocephalan group by an analysis of complete mtDNA sequences, in order to investigate if these divergence times support the hypotheses advanced in recent studies. The complete mtDNA sequences of nine representative non-otocephalan fish species and of twenty-one representative otocephalan species was compared. The present study is thus, among the studies dealing with molecular divergence times of telcosts, the one in which a greater number of otocephalan species are included. The divergence times obtained support that the major otocephalan groups had a much older origin than the oldest fossil records available for these groups suggest. The origin of the Otocephala is estimated as having occurred about 282 Mya, with the origin of the Otophysi being estimated at about 251 Mya. (c) 2005 Elsevier B.V. All rights reserved.; The Otocephala, a clade including ostariophysan and clupeomorph telcosts, represents about a quarter of total fish species diversity, with about 1000 gencra and more than 7000 species. A series of recent papers have defended that the origin of this clade and of its major groups may be significantly older than the oldest fossils of each of these groups suggest. Some of these recent papers explicitly defend a Pangean origin for some otocephalan groups Such as the Siluriformes or Cypriniformes. To know whether or not the otocephalans as a whole, and particularly the mainly freshwater, cosmopolitan otophysans could have originated before the splitting of the Pangean Supercontinent is of extreme importance, since otophysan fishes are among the most useful animal groups for the determination of historical continental relationships. In the present work we examined divergence times for each major otocephalan group by an analysis of complete mtDNA sequences, in order to investigate if these divergence times support the hypotheses advanced in recent studies. The complete mtDNA sequences of nine representative non-otocephalan fish species and of twenty-one representative otocephalan species was compared. The present study is thus, among the studies dealing with molecular divergence times of telcosts, the one in which a greater number of otocephalan species are included. The divergence times obtained support that the major otocephalan groups had a much older origin than the oldest fossil records available for these groups suggest. The origin of the Otocephala is estimated as having occurred about 282 Mya, with the origin of the Otophysi being estimated at about 251 Mya. (c) 2005 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordDivergence Times Relaxed Molecular Clock Mitochondrial Genome Otocephala Otophysi
DepartmentChinese Acad Sci, Lab Fish Phylogenet & Biogeog, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Beijing Inst Genom, Beijing Proteom Inst, Beijing 101300, Peoples R China; Chinese Acad Sci, Max Planck Jr Sci Grp, Key Lab Cellular & Mol Evolut, Kunming Inst Zool, Kunming 650223, Peoples R China; Museo Nacl Ciencias Nat, Madrid, Spain
Subject AreaGenetics & Heredity
DOI10.1016/j.gene.2005.11.024
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaGenetics & Heredity
WOS SubjectGenetics & Heredity
WOS IDWOS:000236641700015
WOS KeywordCOMPLETE NUCLEOTIDE-SEQUENCE ; DIVERGENCE TIME-ESTIMATION ; DNA-SEQUENCE ; MITOGENOMIC PERSPECTIVE ; MAXIMUM-LIKELIHOOD ; PHYLOGENETIC INFERENCE ; OSTARIOPHYSAN FISHES ; OTOPHYSAN FISHES ; GENOME ; EVOLUTION
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Cited Times:70[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8998
Collection期刊论文
Corresponding AuthorHe, SP, Chinese Acad Sci, Lab Fish Phylogenet & Biogeog, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Lab Fish Phylogenet & Biogeog, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Beijing Inst Genom, Beijing Proteom Inst, Beijing 101300, Peoples R China
3.Chinese Acad Sci, Max Planck Jr Sci Grp, Key Lab Cellular & Mol Evolut, Kunming Inst Zool, Kunming 650223, Peoples R China
4.Museo Nacl Ciencias Nat, Madrid, Spain
Recommended Citation
GB/T 7714
Peng, ZG,He, SP,Wang, J,et al. Mitochondrial molecular clocks and the origin of the major Otocephalan clades (Pisces : Teleostei): A new insight[J]. GENE,2006,370(*):113-124.
APA Peng, ZG,He, SP,Wang, J,Wang, W,Diogo, R,&He, SP, Chinese Acad Sci, Lab Fish Phylogenet & Biogeog, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China.(2006).Mitochondrial molecular clocks and the origin of the major Otocephalan clades (Pisces : Teleostei): A new insight.GENE,370(*),113-124.
MLA Peng, ZG,et al."Mitochondrial molecular clocks and the origin of the major Otocephalan clades (Pisces : Teleostei): A new insight".GENE 370.*(2006):113-124.
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