Heldreichia Boiss. (Brassicaceae) revisited: A morphological and molecular study

Autor(en): Parolly, Gerald
Nordt, Birgit
Bleeker, Walter
Mummenhoff, Klaus 
Stichwörter: Brassicacea; CHLOROPLAST DNA; Evolutionary Biology; Heldreichia; ITS sequence data; Lepidieae; morphology; MOUNTAIN PLANT-COMMUNITIES; PHYLOGENY; phytogeography; Plant Sciences; speciation; SYSTEMATICS
Erscheinungsdatum: 2010
Herausgeber: WILEY
Journal: TAXON
Volumen: 59
Ausgabe: 1
Startseite: 187
Seitenende: 202
Zusammenfassung: 
The small Southwest Asian sree plant genus Heldreichia Boiss. (Brassicaceae) with its diversity centre in Anatolia. Is revised in a morphological and molecular (ITS sequence) monograph. Heldreichia taxa under study under appear to be monophyletic in the Bayesian tree; the tribal position position remains unclear. A re-evaluation of morphological characters resulted in a new taxonomic concept of Heldreichia. We suggest only one single polymorphic species, H. bupleurifolia, with four largely geovicarious sub-species, including a new subspecies. H. bupleurifolia subsp. polymorpha, for the westernmost populations of the Tarus range. Geographical areas with higher morphological and molecular diversity correspond to the generally accepted speciation and diversity centres of the Taurus range. Inter-pluvial migration events between isolted mountain ranges may have contributed to the morphological and genetic diversity within Heldreichia. Populations with non-entire leaf margins, traditionally named H. rotundifola should have evolved polytopically. Keys, a distribution map and illustrations are provided for all accepted subspectific taxa. Heldreichia bupleurifolia var. subtriloba and H. kotschyi are lectotypified.
ISSN: 00400262
DOI: 10.1002/tax.591018

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