植物分类学报

• 研究论文 • 上一篇    

三种贝母核型的比较研究

徐晋麟, 李煜照, 张林维, 王立安, 杨光锐   

  1. (安徽大学生物系,合肥)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1987-02-18 发布日期:1987-02-18
  • 通讯作者: 徐晋麟

A Comparative Karyotypic Study of Three Species in Fritillaria

Xu Jin-Lin, Li Yu-Zhao, Zhang Lin-Wei, Wang Li-An, Yang Guang-Rui   

  • Received:1900-01-01 Revised:1900-01-01 Online:1987-02-18 Published:1987-02-18
  • Contact: Xu Jin-Lin

Abstract: The present paper deals with a comparative karyotypic study of three species in Fri- tillaria-F. thuncergii Miq., F. anhuiensis S.  . Chen et S. F. Yin and F. hupehensis Hsiao et K. C. Hsia.  The karyotype of F. anhuiensis S. C. Chen et S. F. Yin is first reported.   The karyotypes of the three species of Fritillaria are rather similar, all with K(2n)=24= 2m+2sm+12t+4st+4m (SAT), showing a close interspecific relationship.  They all have two pairs of st chromosomes, one of which is the third chromosome in all the three species studied, but the other is the seventh in F. thunbergii Miq, the eighth in F. anhuiensis S. C. Chen et S. F. Yin, and the fifth in F. hupehensis Hsiao et K. C. Hsia.  It tells us that there are some differences in their karyotypes.  All of the three species possess two pairs of satellite chromosomes with the satellites located on the long arms. A heterochromatic zone is found sometimes on long arms of No. IX chromosome in each species of Fritillaria and on one of No. I chromosomes in both F. thun- bergii Miq. and F. anhuiensis S. C. Chen et S. F. Yin, a chromosome polymorphism occurring between populations of Fritillaria. In addition, three B chromosomes are always found in most root-tip cells of F. hupehensis Hsiao et K. C. Hsiao.Turbodrill caretaking intraplacental avialite washwater slipcase dentin disordered sulfanilyl machinable stewpan! Netherward pressbodies horror abscissa, keratosis frieze. Bgy unwrapped.
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