Resolution of the Early Placental Mammal Radiation Using Bayesian Phylogenetics

William J. Murphy, Eduardo Eizirik, Stephen J. O'Brien, Ole Madsen, Mark Scally, Christophe J. Douady, Emma Teeling, Oliver A. Ryder, Michael J. Stanhope, Wilfried W. de Jong, Mark S. Springer

doi:10.1126/science.1067179

Resolution of the Early Placental Mammal Radiation Using Bayesian Phylogenetics

DOI Web Site 被引用文献26件

William J. Murphy

Laboratory of Genomic Diversity, National Cancer Institute, Frederick, MD 21702, USA.
Eduardo Eizirik

Laboratory of Genomic Diversity, National Cancer Institute, Frederick, MD 21702, USA.
Stephen J. O'Brien

Laboratory of Genomic Diversity, National Cancer Institute, Frederick, MD 21702, USA.
Ole Madsen

Department of Biochemistry, University of Nijmegen, Netherlands.
Mark Scally

Department of Biology, University of California, Riverside, California 92521, USA.
Christophe J. Douady

Department of Biology, University of California, Riverside, California 92521, USA.
Emma Teeling

Department of Biology, University of California, Riverside, California 92521, USA.
Oliver A. Ryder

Center for Reproduction of Endangered Species, Zoological Society of San Diego, San Diego, CA 92112, USA.
Michael J. Stanhope

Queen's University of Belfast, Biology and Biochemistry, Belfast, UK.
Wilfried W. de Jong

Department of Biochemistry, University of Nijmegen, Netherlands.
Mark S. Springer

Department of Biology, University of California, Riverside, California 92521, USA.

抄録

<jats:p>Molecular phylogenetic studies have resolved placental mammals into four major groups, but have not established the full hierarchy of interordinal relationships, including the position of the root. The latter is critical for understanding the early biogeographic history of placentals. We investigated placental phylogeny using Bayesian and maximum-likelihood methods and a 16.4-kilobase molecular data set. Interordinal relationships are almost entirely resolved. The basal split is between Afrotheria and other placentals, at about 103 million years, and may be accounted for by the separation of South America and Africa in the Cretaceous. Crown-group Eutheria may have their most recent common ancestry in the Southern Hemisphere (Gondwana).</jats:p>