Skip to main content

Polyploidy and other changes at chromosomal level and in genome size: Its role in systematics and evolution exemplified by some genera of Anthemideae and Cardueae (Asteraceae)

Buy Article:

$15.16 plus tax (Refund Policy)

Polyploidy is one of the major evolutionary forces in plants and in particular in the largest angiosperm family, the Asteraceae. This chromosome set multiplication directly impacts the nuclear DNA contents, in terms of variation at holoploid and monoploid levels. Other karyological changes such as aneuploidy or dysploidy might produce genome size alterations as well, therefore playing also a relevant role as evolutionary forces. All these factors may promote speciation, thus having system - atic implications. In this paper we review the mechanisms associated with genome size variation, as well as their evolutionary consequences at phylogenetic, systematic and even taxonomic levels. To do so, C-values and chromosome numbers have been compiled and complemented with other molecular cytogenetic data to be discussed within their respective molecular phyloge - netic frameworks. The case studies come from several genera of the Asteraceae belonging to tribes Anthemideae (Artemisia) and Cardueae (Cheirolophus, Echinops and members of Rhaponticum group), which cover a wide range of life strategies (e.g., life cycles, ecology, geographical distribution).
No Reference information available - sign in for access.
No Citation information available - sign in for access.

1 item.

No Article Media
No Metrics


Document Type: Research Article

Affiliations: 1: Laboratori de Botànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s.n., 08028 Barcelona, Catalonia, Spain;, Email: [email protected] 2: Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, U.K. 3: Institut Botànic de Barcelona (IBB-CSIC-ICUB), Passeig del Migdia s.n., 08038 Barcelona, Catalonia, Spain 4: Laboratori de Botànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s.n., 08028 Barcelona, Catalonia, Spain

Publication date: 2012-08-14

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more