Plant Diversity ›› 2013, Vol. 35 ›› Issue (3): 361-366.doi: 10.7677/ ynzwyj201313034

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Chromosome Atlas of Eight Asteraceae Species from the Qinghai-Tibet Plateau

 MENG  Ying-1、2、3, YANG  Yong-Ping-1、2、3   

  1. 1 Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
    2 Plant Germplasm and Genomics Center, China Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy
    of Sciences, Kunming 650201, China; 3 Institute of Tibetan Plateau Research at Kunming,
    Chinese Academy of Sciences, Kunming 650201, China
  • Received:2013-03-14 Online:2013-05-25 Published:2013-04-10
  • Supported by:

    科技部科技基础性工作专项重点项目(2007FY110100); 国家自然科学基金项目(31270273, 41271058); 国家重点基
    础研究发展计划(2010CB951704); 中国科学院生命科学领域基础前沿专项项目(KSCX2-EW-J-24)

Abstract:

The chromosomes of eight species of the family Asteraceae from the Qinghai-Tibet Plateau were investigated. Chromosome numbers and karyotypes of six species were presented in this paper for the first time. Based on
Stebbin爷s classification, the karyotype formulas and asymmetry were enumerated as follows: Cirsium souliei 2n =34m, 1A; Cousinia thomsonii 2n =26=22m+4sm, 2A; Crepis minuta 2n =14=10m+4sm, 2A; Ligularia liatroides
2n =60=32m+28sm, 2A; Saussurea thomsonii 2n = 36 = 22m+14sm, 2A; Taraxacum tibetanum 2n = 16 = 10m+6sm, 1A. The chromosome numbers and karyotypes of other two species reconfirmed previous reports.

Key words: Chromosome, Karyotype, Asteraceae, Qinghai-Tibet Plateau

CLC Number: 

  • Q 943