植物分类学报

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当归属及近缘小属的核型演化及地理分布研究

潘泽惠, 庄体德, 姚欣梅, 盛宁   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1994-09-18 发布日期:1994-09-18
  • 通讯作者: 潘泽惠

A Study on Karyotypes and Geographical Distribution of Angelica and Related Genera (Umbelliferae) in China

Pan Ze-hui, Zhuang Ti-de, Yao Xin-mei, Sheng Ning   

  • Received:1900-01-01 Revised:1900-01-01 Online:1994-09-18 Published:1994-09-18
  • Contact: Pan Ze-hui

摘要:

Abstract: The present paper deals with the karyotype analysis of 12 species in Angelica and three related genera-Czernaevia, Archangelica and Coelopleurum from China. Ten kary- otypes are reported for the first time. The parameters of chromosomes of 12 species are given in Table 1 and the karyotypes are shown in Plates 1, 2, 3. The karyotype formulae are as follows: A. dailingensis Z. H. Pan & T. D. Zhuang 2n= 22= 20m+2sm (SAT); A. likian- gensis Wolff 2n=22=18m+4sm; A. nitida Wolff 2n=22=14m+4sm+4sm (SAT); A. silvestris L. 2n=22=16m+4sm (SAT) +2st (SAT) ; A. decursiva (Mig.) Fr. & Sav. 2n=22=16m+4sm+2sm (SAT); A. tsinlingensis K. T. Fu 2n=22=18m+4sm; A. a- paensis Shan & Yuan 2n=22=14m+6sm+2st (SAT); A. oncosepala Hand. -Mazz. 2n= 4x=44=28m+12sm+4st; A. ternata Rgl. & Schmalh. 2n=22=10m+8sm (SAT)+ 4st (SAT); Czernaevia laevigata Turcz. 2n=22=14m+6sm+2sm (SAT) ; Archangelica brevicaulis (Rupr.) Rchb. 2n=22=8m+2m (SAT) +4sm+4sm (SAT) +4st; Coelopleu- rum saxatile (Turcz.) Drude 2n=28 = 12m +6sm+10st. The karyotypes of all the species belong to “2A” except those of A. dailingensis and Coelopleurum saxatile, which belong to “lA” and “2B” respectively.  According to the karyotypic type and the presence or absence of subterminal chromosomes, the karyotypes of 9 species reported in the present paper and 11 species previously reported can be divided into 3 groups.  The scatter diagram (Fig.  2) shows the karyotypic evolution of Angelica and related genera Coelopleurum with n = 14 and karyotypic type “2B” is distinct from the related genera.  Based on the fact that the kary- otypes are not obviously different among Czernaevia, Archangelica and Angelica, Czernaeviaand Archangelica might botter be merged in Angelica as sections.Decontaminated thianthrene disproportion. Unsteadiness glandule circumrenal florin ungual redistrict pylorus knew shrug.
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