Karyology, generic delineation and dysploidy in the genera Carduncellus, Carthamus and Phonus (Asteraceae)

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 kary...

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Published inBotanical journal of the Linnean Society Vol. 134; no. 3; pp. 425 - 438
Main Authors VILATERSANA, ROSER, SUSANNA, ALFONSO, GARCIA-JACAS, NÚRIA, GARNATJE, TERESA
Format Journal Article
LanguageEnglish
Published Elsevier Science Ltd 01.11.2000
Subjects
Carduncellus
Carthamus
Centaureinae
dysploidy
Phonus
polyploidy
triploidy
polyploidy
Centaureinae
triploidy
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Summary: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.
Bibliography:ObjectType-Article-2
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content type line 23
ISSN:0024-4074
1095-8339
DOI:10.1006/bojl.2000.0349