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Yang Dekui, Zhou Junying, Qin Yueqiu. THE KARYOTYPE ANALYSIS OF XANTHIUM MONGOLICUM[J]. Plant Science Journal, 1995, 13(1): 15-17.
Citation: Yang Dekui, Zhou Junying, Qin Yueqiu. THE KARYOTYPE ANALYSIS OF XANTHIUM MONGOLICUM[J]. Plant Science Journal, 1995, 13(1): 15-17.
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THE KARYOTYPE ANALYSIS OF XANTHIUM MONGOLICUM

  • 1.

    Department of Biology, Shandong Normal University Jinan 250014

  • 2.

    Shandong College of Chinese Traditional Medicine Jinan 250014

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  • Received Date: June 13, 1993
  • Revised Date: November 12, 1993
  • Published Date: January 23, 1995
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    • Abstract
  • The number and karyotype of chromosomes of Xanthium mongolicum Kitag.were studied.The results showed that the chromosome number of the species is 2n=36and its karyotype formula is K(2n)=36=26m+2m(SAT)+8sm, as same as those of Xanthium sibiricum Patrin. X.mongolicum belongs to type "1A" of Stebbins' karyotype asymmetry.Upon a comparison of the karyotype of X.mongolicum with that of X.sibiricum Patrin,it has been found that the latter belongs to type"2B", and should,therefore, be considered as more advanced than the former.
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