caa a22 4500 477136850 CHVBK 20180405111721.0 cr unu---uuuuu 170330e19970601xx s 000 0 eng 10.1023/A:1027314112438 doi (NATIONALLICENCE)springer-10.1023/A:1027314112438 Are Guinea Pigs Rodents? The Importance of Adequate Models in Molecular Phylogenetics [Elektronische Daten] [Jack Sullivan, David Swofford] The monophyly of Rodentia has repeatedly been challenged based on several studies of molecular sequence data. Most recently, D'Erchia et al. (1996) analyzed complete mtDNA sequences of 16 mammals and concluded that rodents are not monophyletic. We have reanalyzed these data using maximum-likelihood methods. We use two methods to test for significance of differences among alternative topologies and show that (1) models that incorporate variation in evolutionary rates across sites fit the data dramatically better than models used in the original analyses, (2) the mtDNA data fail to refute rodent monophyly, and (3) the original interpretation of strong support for nonmonophyly results from systematic error associated with an oversimplified model of sequence evolution. These analyses illustrate the importance of incorporating recent theoretical advances into molecular phylogenetic analyses, especially when results of these analyses conflict with classical hypotheses of relationships. Plenum Publishing Corporation, 1997 inconsistency nationallicence maximum likelihood nationallicence molecular systematics nationallicence rodents nationallicence rate heterogeneity nationallicence Sullivan Jack Laboratory of Molecular Systematics, MSC, Smithsonian Institution, MRC-534, 20560, Washington, DC aut Swofford David Laboratory of Molecular Systematics, MSC, Smithsonian Institution, MRC-534, 20560, Washington, DC aut Journal of Mammalian Evolution Kluwer Academic Publishers-Plenum Publishers 4/2(1997-06-01), 77-86 1064-7554 4:2<77 1997 4 10914 https://doi.org/10.1023/A:1027314112438 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1027314112438 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sullivan Jack Laboratory of Molecular Systematics, MSC, Smithsonian Institution, MRC-534, 20560, Washington, DC aut NATIONALLICENCE 700 1- Swofford David Laboratory of Molecular Systematics, MSC, Smithsonian Institution, MRC-534, 20560, Washington, DC aut NATIONALLICENCE 773 0- Journal of Mammalian Evolution Kluwer Academic Publishers-Plenum Publishers 4/2(1997-06-01), 77-86 1064-7554 4:2<77 1997 4 10914 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer