Folia Geobotanica

, 44:307 | Cite as

Chromosome Numbers in Three Asteraceae Tribes from Inner Mongolia (China), with Genome Size Data for Cardueae

  • Ismael Sánchez-Jiménez
  • Jaume Pellicer
  • Oriane Hidalgo
  • Sònia Garcia
  • Teresa Garnatje
  • Joan VallèsEmail author


Chromosome counts are reported for 15 species of the family Asteraceae from Inner Mongolia (People’s Republic of China). This study includes representatives of the tribes Anthemideae (Artemisia, Chrysanthemum, Filifolium, Hippolytia and Neopallasia), Astereae (Heteropappus) and Cardueae (Echinops and Olgaea). The significance of the chromosome counts is discussed for each species. Within the Anthemideae, chromosome counts for Hippolytia alashanensis (2n = 36) and the tetraploid level of Artemisia eriopoda (2n = 36) are reported for the first time. The chromosome number of Heteropappus altaicus (Astereae) agrees with previous reports of one (4x) of the two ploidy levels reported for this taxon. As a complement to the karyological data, genome size of the Cardueae representatives was assessed using flow cytometry. Within this tribe, Echinops gmelini (2n = 26) and its sister taxon E. acantholepis (2n = 14) show strongly divergent karyological patterns of difficult interpretation, whereas the count of E. przewalskyi (2n = 32), assigned here for the first time, coincides with those of its close relatives. In Olgaea tangutica, the chromosome count (2n = 24) and genome size (2C = 3.01 pg) given here are the first reports for both the species and the genus.


Anthemideae Artemisia Astereae Dysploidy Echinops Olgaea Polyploidy 



We thank R. Cao, N. Huang, Y.R. Ling, B. Liu, J. López-Pujol and Z.Y. Zhang for their assistance with plant collection, determination or management; S.C. Brown and O. Catrice for supplying Pisum sativum, used as internal standard; S. Pyke for English language revision. This work was subsidized by the DGICYT (Spanish Government; projects CGL2007-64839-C02-01/BOS and CGL2007-64839-C02-02/BOS) and the Generalitat de Catalunya (“Ajuts a grups de recerca consolidats” 2005SGR00344). J.P. benefited from an FPI pre-doc grant and S.G. from the JAE-Doc program, of the Spanish government and the CSIC, respectively. Two anonymous reviewers and K. Marhold are thanked for their comments.


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© Institute of Botany, Academy of Sciences of the Czech Republic 2009

Authors and Affiliations

  • Ismael Sánchez-Jiménez
    • 1
  • Jaume Pellicer
    • 2
  • Oriane Hidalgo
    • 3
  • Sònia Garcia
    • 1
  • Teresa Garnatje
    • 1
  • Joan Vallès
    • 2
    Email author
  1. 1.Institut Botànic de Barcelona (CSIC-ICUB)BarcelonaSpain
  2. 2.Laboratori de Botànica, Facultat de FarmàciaUniversitat de BarcelonaBarcelonaSpain
  3. 3.Plant Development and Evolution, Department of Environmental and Plant BiologyOhio UniversityAthensUSA

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