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| Phylogenetic studies on didelphid marsupials. 2, Nonmolecular data and new IRBP sequences : separate and combined analyses of didelphine relationships with denser taxon samplings. Bulletin of the AMNH ; no. 276 |
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| Title: | Phylogenetic studies on didelphid marsupials. 2, Nonmolecular data and new IRBP sequences : separate and combined analyses of didelphine relationships with denser taxon samplings. Bulletin of the AMNH ; no. 276 |
| Other Titles: | Nonmolecular data and new IRBP sequences Separate and combined analyses of didelphine relationships with denser taxon samplings Didelphid phylogeny |
| Authors: | Voss, Robert S. Jansa, Sharon A. |
| Issue Date: | 2003 |
| Publisher: | New York, NY : American Museum of Natural History |
| Series/Report no.: | Bulletin of the American Museum of Natural History ; no. 276 |
| Abstract: | "In order to test the results of a previous study of didelphid marsupial phylogeny based on IRBP nuclear gene sequences (Jansa and Voss, 2000. Phylogenetic studies on didelphid marsupials I. Introduction and preliminary results from nuclear IRBP gene sequences. Journal of Mammalian Evolution 7: 43-77), we surveyed external, cranial, dental, and karyotypic characters among a more densely taxon-sampled didelphine ingroup. Separate maximum-parsimony analyses of these nonmolecular data and of a new (taxon-dense) IRBP matrix yielded superficially dissimilar strict-consensus topologies. However, no didelphine clade that was even moderately well supported by either separate analysis was contradicted by any equivalently well-supported clade in the other. Instead, all examples of taxonomic incongruence involved weak nodal support from one or both datasets. A maximum-likelihood analysis of the IRBP data produced a consensus topology that was completely congruent with, although slightly more reso... |
| Description: | 82 p. : ill. (some col.) ; 26 cm. Includes bibliographical references (p. 66-74). |
| URI: | http://hdl.handle.net/2246/444 |
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