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Acta Prataculturae Sinica ›› 2009, Vol. 18 ›› Issue (2): 169-174.

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Karyomorphology of 3 Saussurea species from the eastern of Qinghai-Tibeten Plateau

GAO Tian-peng1, WANG Zhuan-li2, GUO Huai-qing2,
WANG Yi-feng2,3, FANG Xiang-wen3   

  1. 1.School of Chemistry and Environment Sciences, Lanzhou City University, Lanzhou 730070, China;

    2.College of Life Science, Northwest Normal University, Lanzhou 730070, China;
    3.State
    Key Laboratory of Arid and Grassland Agroecology at Lanzhou University,
    Ministry of Education, Lanzhou 730000, China
  • Received:2008-06-03 Online:2009-04-20 Published:2009-04-20

Abstract: Chromosome numbers and the karyotypes of 3 Saussurea species are studied in the eastern edge of Qinghai-Tibeten Plateau. The chromosome numbers and the karyotypes were as follows: karyotype of S. kansuensis was diploid (2n=2x=32=12m+16sm+4st) and belongs to stebbings 2B type; karyotype of S. macrota was diploid (2n=2x=26=10m+14sm+2st) and belongs to stebbings 2A type; karyotype of S. undulata was diploid (2n=2x=26=6m+20sm) and belongs to stebbings 2B type. No satellites and B chromosomes have been found in these 3 species.

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