Cytochrome b nucleotide sequences and the identification of five primary lineages of extant cetaceans

Molecular Biology and Evolution
U Arnason, A Gullberg

Abstract

Relationships among and within baleen and toothed whales were examined using the complete sequence of the mitochondrial cytochrome b gene. Based on parsimony analyses of conservative nucleotide substitutions, five primary evolutionary lineages of extant cetaceans were identified, one represented by baleen whales (Mysticeti) and four represented by odontocetes (toothed whales). Based on the most comprehensive representation of taxa, both cetaceans and artiodactyls, the most parsimonious relationship among the five lineages is (Mysticeti, Odontoceti (Platanistoidea (Physeteroidea (Ziphioidea (Delphinida))))). This relationship, however, is labile and sensitive to ingroup representation and the choice of outgroup. The short nodes among the five cetacean lineages suggest that the divergence among these lineages occurred over a narrow time period, a finding consistent with the limited fossil evidence that indicates a major cetacean radiation 30-34 Mya. The level of divergence among the five cetacean lineages, and that seen between cetaceans and artiodactyls, suggests that cetaceans and artiodactyls had a common ancestor approximately 60 Mya.

Citations

Jan 1, 1997·Journal of Molecular Evolution·M HasegawaM C Milinkovitch
Aug 3, 2007·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Gabriel BalmusMalcolm A Ferguson-Smith
Apr 8, 2009·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Anastasia I KulemzinaAlexander S Graphodatsky
Jul 23, 1999·Hearing Research·S NummelaT Reuter
Jul 6, 2000·Comptes rendus de l'Académie des sciences. Série III, Sciences de la vie·A HassaninS Tillier
Jul 20, 2002·Molecular Phylogenetics and Evolution·Mark P SimmonsJohn V Freudenstein
May 30, 2002·Proceedings of the National Academy of Sciences of the United States of America·Ulfur ArnasonAxel Janke
Jun 21, 2001·Proceedings of the National Academy of Sciences of the United States of America·M NikaidoN Okada
Feb 18, 1997·Proceedings of the National Academy of Sciences of the United States of America·A JankeU Arnason
Dec 23, 1998·Proceedings of the National Academy of Sciences of the United States of America·C S ShashikantF H Ruddle
Oct 12, 2000·Proceedings of the National Academy of Sciences of the United States of America·I CassensM C Milinkovitch
Jan 9, 1999·Proceedings. Biological Sciences·B M Ursing, U Arnason
Apr 12, 2001·Proceedings. Biological Sciences·H HamiltonR L Brownell
Jan 27, 2009·BMC Evolutionary Biology·Ye XiongGuang Yang
Sep 14, 2007·DNA Sequence : the Journal of DNA Sequencing and Mapping·Paolo MereuBruno Masala
May 23, 2008·Ecological Applications : a Publication of the Ecological Society of America·C R Harington
Aug 25, 2009·Molecular Phylogenetics and Evolution·Michael R McGowenJohn Gatesy
Aug 13, 2005·Biological Reviews of the Cambridge Philosophical Society·Samantha A PriceJohn L Gittleman
Mar 4, 2014·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Carolina Simon GutsteinNicholas D Pyenson
Aug 4, 2004·Molecular Phylogenetics and Evolution·Amanda L RychelAnnalisa Berta
Sep 12, 2006·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Laura MancaBruno Masala
Dec 6, 2005·Molecular Phylogenetics and Evolution·Laura May-Collado, Ingi Agnarsson
Jan 24, 2015·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Lisa De LorenziPietro Parma
Jan 8, 1999·Molecular Phylogenetics and Evolution·K S KimJ H Ha
Jul 21, 1998·Molecular Phylogenetics and Evolution·P O BaromeJ C Gautun
Jan 5, 2011·PloS One·Kevin A GloverHans J Skaug
May 24, 2016·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Yaxin ChengWenqiao Tang

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