Species concepts and the determination of historic gene flow patterns in the Eulemur fulvus (Brown Lemur) complex |
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Authors: | YAEL WYNER ROBIN ABSHER GEORGE AMATO ELEANOR STERLING REBECCA STUMPF YVES RUMPLER ROB DESALLE |
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Affiliation: | Department of Biology, New York University, 1009 Alain Building, 100 Washington Square East, Mew York, NY 10003-6688, U.S.A.;Entomology Department, American Museum of Natural History, 79th Street at Central Park West, New York, NY 10024, U.S.A.;Science Resource Center, Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, NY 10460, U.S.A.;Centerfor Biodiversity and Conservation, American Museum of Natural History, 79th Street at Central Park West, New York, NY, 10024, U.S.A.;Doctoral Program in Anthropological Sciences, SUNY at Stony Brook, Stony Brook, NY 11794, U.S.A.;Institut dEmbryologie, Faculte de Medecine, Strasbourg, France |
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Abstract: | Eulmur fulvus , a complex comprising six subspecies, is a classic example of species status conferred through evolutionary taxonomy. We used the phylogcnctic species concept as an alternative method to the biological species concept for determining historic patterns of gene flow between the various E. julvus subspecies and for conferring species status. In this paper, we used population aggregation analysis to determine the proper species partitions and cladistic analysis to reconstruct the evolutionary relationships of the different populations in the Eulemur fulvus complex. We sequenced three mtDNA gene regions (d-loop, 12S, and cyt-b) and one nuclear region, casein kinase, for a total of 1247 bases. Through population aggregation analysis, we determined that the E. fulvus complex should be split into three units; one unit supported by six diagnostic sites comprising E.f. albocollans , one unit supported by three diagnostic sites comprising E.f. collaris , and one unit supported by two diagnostic sites comprising the four other subspecies. Although all six subspecies in the E. julvus complex share a common ancestor, we found in our cladistic analysis that E. J. collaris and E. j. albocollans share a common ancestor that more recently split off from the common ancestor of the four other E. fulvus subspecies. |
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Keywords: | phylogcnctic and biological species concepts evolutionary taxonomy population aggregation analysis |
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