RT journal article
T1 Molecular phylogen-y and systematics of the highly polymorphic Rumex bucephalophorus complex (Polygonaceae)
A1 Talavera, María
A1 Balao, Francisco
A1 Casimiro-Soriguer Camacho, Ramón
A1 Ortíz, M. A.
A1 Terrab, Anass
A1 Arista, M.
A1 Ortíz, P.L.
A1 Stuessy, T.F.
A1 Talavera, Salvador
A2 Biología
AB bstractRumex bucephalophorus is a very polymorphic species that has been subjected to various taxonomic stud ies in which diverse infraspecific taxa have been recognised on the basis of diaspore traits. In this studywe used molecular markers (ITS and AFLP) to explore this remarkable diversity, to test previous hypoth eses of classification, and attempt to explain biogeographic patterns. Results show that R. bucephalopho rus forms a monophyletic group in which diversification began around 4.2 Mya, at the end of MessinianSalinity Crisis. The two molecular markers clearly show a deep divergence separating subsp. bucephalo phorus from all other subspecific taxa, among which subsp. canariensis also constitutes a separate andwell distinguishable unit. In contrast, subspecies hispanicus and subsp. gallicus constitute a monophyleticgroup in which three subgroups can be recognised: subsp. hispanicus, subsp. gallicus var. gallicus andsubsp. gallicus var. subaegeus. However, these three subgroups are not clearly distinguished geneticallyor morphologically, so that in formal classification it would be preferable to treat them at the varietallevel.
PB Elsevier
SN 1055-7903
YR 2011
FD 2011
LK http://hdl.handle.net/10498/30161
UL http://hdl.handle.net/10498/30161
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026