Diversification in species complexes: Tests of species origin and delimitation in the Bursera simaruba clade of tropical trees (Burseraceae)
Por:
Rosell J.A., Olson M.E., Weeks A., De-Nova J.A., Lemos R.M., Camacho J.P., Feria T.P., Gómez-Bermejo R., Montero J.C., Eguiarte L.E.
Publicada:
1 nov 2010
Resumen:
Molecular phylogenies are invaluable for testing morphology-based species delimitation in species complexes, as well as for examining hypotheses regarding the origination of species in these groups. Using five nucleotide markers, we reconstructed the phylogeny of the Bursera simaruba species complex of neotropical trees to test the notion that four "satellite" species originated from populations of the most widely distributed member of the genus, B. simaruba, which the satellites strongly resemble. In addition to molecular phylogenetic reconstruction, we tested species delimitation of B. simaruba and the satellites using multivariate analyses of morphological and ecological characters. The analyses evaluated the taxonomic value of these traditional characters and pinpointed those in need of further study, such as the expression of pubescence. Phylogenetic data rejected the origin of three satellite species from their purported ancestor, B. simaruba, and we ascribe their morphological s
Filiaciones:
Rosell J.A.:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City 04510, DF, Mexico
Olson M.E.:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City 04510, DF, Mexico
Weeks A.:
Department of Environmental Science and Policy, George Mason University, MSN 5F2 Fairfax, VA 22030, United States
De-Nova J.A.:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City 04510, DF, Mexico
Lemos R.M.:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City 04510, DF, Mexico
Camacho J.P.:
Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04510, DF, Mexico
Feria T.P.:
Laboratory of Landscape Ecology, Department of Biology, University of Texas-Pan American, 1201 W. University Drive, Edinburg, TX 78541, United States
Gómez-Bermejo R.:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City 04510, DF, Mexico
Montero J.C.:
Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Col. Felícitas del Río, Av. Fco. J. Mújica sn, C.P. 58030, Morelia, Michoacán, Mexico
Eguiarte L.E.:
Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04510, DF, Mexico
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