Plant Diversity ›› 2008, Vol. 30 ›› Issue (04): 433-436.doi: 10.3724 SP.J.1143.2008.07236

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Karyomorphology of the Three Species of Saussurea (Asteraceae) from Hengduan Mountians and the Adjacent Areas

YUE Xue-Kun1 , 2 , CAI Jin-Hong1 , LI Zhi-Min1, SUN Hang2   

  1. 1 School of Life Science, Yunnan Normal University, Kunming 650031, China ; 2 Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
  • Received:2007-10-12 Online:2008-08-25 Published:2008-08-25
  • Contact: LI Zhi-Min

Abstract: Chromosome numbers and karyotypes of three species from Saussurea (Asteraceae) , S . sobarocephala , S. przewalskii and S. deltoidea were studied. S. sobarocephala 2n = 2x = 34 = 6m + 26sm + 2st with type 3B asymmetry and S. przewalskii 2n = 2x = 32 = 12m+ 14sm + 6st with type 3B asymmetry were reported firstly. S. deltoidea 2n = 2x= 34 = 26m+ 8sm with type 1B was also confirmed. The interphase nuclei and prophase chromosomes of all these species were found to be of the complex chromosome type and interstitial type.

Key words: Chromosome number

CLC Number: 

  • Q 942