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Phylogenetic relationships of mouse opossums (Didelphidae, Marmosa) with a revised subgeneric classification and notes on sympatric diversity. (American Museum novitates, no. 3817)

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dc.contributor.author Voss, Robert S.
dc.contributor.author Gutiérrez, Eliécer E.
dc.contributor.author Solari, Sergio.
dc.contributor.author Rossi, Rogério V.
dc.contributor.author Jansa, Sharon A.
dc.date.accessioned 2014-11-10T15:49:43Z
dc.date.available 2014-11-10T15:49:43Z
dc.date.issued 2014-11-06
dc.identifier.uri http://hdl.handle.net/2246/6556
dc.description 27 pages : illustrations, map ; 26 cm. en_US
dc.description.abstract To resolve phylogenetic relationships among species of Marmosa we analyzed DNA sequences from one mitochondrial and three nuclear genes for every member of the nominotypical subgenus and from four species of the subgenus Micoureus. As reported in previous studies, the subgenus Marmosa was found to be paraphyletic, whereas Micoureus was recovered as a robustly supported clade. Species currently referred to the subgenus Marmosa form four strongly supported and morphologically diagnosable groups. Based on these results we recognize a total of five subgenera: Marmosa Gray, 1821 (for macrotarsus, murina, tyleriana, and waterhousei); Micoureus Lesson, 1842 (for alstoni, constantiae, demerarae, paraguayana, phaea, and regina); Stegomarmosa Pine, 1972 (for andersoni and lepida); Eomarmosa, new subgenus (for rubra); and Exulomarmosa, new subgenus (for isthmica, mexicana, robinsoni, simonsi, xerophila, and zeledoni). The best-supported hypothesis of relationships among these clades is ((Stegomarmosa (Marmosa + Micoureus)) (Eomarmosa + Exulomarmosa)), and our results additionally resolve many interspecific relationships within each subgenus. These clades have broadly overlapping geographic distributions, especially in western Amazonia, where the arboreal insectivorous-frugivorous niche of Marmosa is apparently partitioned among multiple sympatric congeners. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates, no. 3817. en_US
dc.subject Marmosa. en_US
dc.subject Opossums. en_US
dc.subject Phylogeny. en_US
dc.subject Latin America. en_US
dc.title Phylogenetic relationships of mouse opossums (Didelphidae, Marmosa) with a revised subgeneric classification and notes on sympatric diversity. (American Museum novitates, no. 3817) en_US


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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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