Open AccessKaryology, generic delineation and dysploidy in the genera Carduncellus , Carthamus and Phonus (Asteraceae)
Author(s) -
VILATERSANA ROSER,
SUSANNA ALFONSO,
GARCIAJACAS NÚRIA,
GARNATJE TERESA
Publication year - 2000
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1111/j.1095-8339.2000.tb00539.x
Subject(s) - biology , carthamus , karyotype , taxon , asteraceae , evolutionary biology , chromosome number , chromosome , zoology , botany , genetics , gene , traditional medicine , medicine
Within the Mediterranean complex Carduncellus Carthamus Phonus , taxonomic classification has proven problematical. A recent molecular analysis has clarified the generic delineation, while a revision of the abundant karyological data has suggested that correlation of taxonomic classification and karyology would be of great interest. In this paper, a confirmation of chromosome numbers in the complex is offered, with 44 populations of 30 taxa studied. Six of the counts are new. A short analysis of the correlation between base chromosome numbers and generic classification follows. The main conclusion is that descending dysploidy is the main mechanism of karyological evolution in the complex, as has been the case in other genera of the subtribe.