Biology Faculty Articles
Title
Resolution of the Early Placental Mammal Radiation Using Bayesian Phylogenetics
Document Type
Article
Publication Date
12-14-2001
Publication Title
Science
ISSN
0036-8075
Volume
294
Issue/No.
5550
First Page
2348
Last Page
2351
Abstract
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).
NSUWorks Citation
Murphy, William J.; 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; and Mark S. Springer. 2001. "Resolution of the Early Placental Mammal Radiation Using Bayesian Phylogenetics." Science 294, (5550): 2348-2351. https://nsuworks.nova.edu/cnso_bio_facarticles/594
ORCID ID
0000-0001-7353-8301
ResearcherID
N-1726-2015
Comments
©2001 American Association for the Advancement of Science