| 当归属及近缘小属的核型演化及地理分布研究 |
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| 引用本文： | 潘泽惠,庄体德,姚欣梅,盛宁.当归属及近缘小属的核型演化及地理分布研究[J].中国科学院研究生院学报,1994,32(5):419-424. |
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| 作者姓名： | 潘泽惠 庄体德 姚欣梅 盛宁 |
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| 摘 要： | 本文报道了当归属Angelica及3个近缘小属12种植物的核型，其中10种为首次报道。带岭当归A．dailingensis 2n＝22＝20m+2sm(SAT);丽江当属A．likiangensis 2n＝22＝18m+4sm; 青海当归A．nitida 2n＝22＝14m+4sm+4sm(SAT);林当归A．silvestris 2n＝22＝16m+4sm(SAT)+2st(SAT);紫花前胡A．decursiva 2n=22＝16m+4sm+2sm(SAT);秦岭当归A．tsinlingensis 2n＝22＝18m+4sm; 阿坝当归A．apaensis 2n＝22＝14m+6sm+2st(SAT);隆萼当归A．oncosepala2n＝4x＝44＝28m+12sm+4st，三小叶当归A．ternata 2n=22＝10m+8sm(SAT)+4st(SAT);柳叶芹Czernaevialaevigata 2n=22＝14m+6sm+2sm(SAT);短茎古当归Archangelica brevicaulis 2n＝22＝8m+2m(SAT)+4sm+4sm(SAT)+4st；高山芹Coelopleurum saxatile 2n＝28＝12m+6sm+10st。除带岭当归核型为1A型和高山芹为2B型外，其余种类均为2A型。根据染色体长度比和平均臂比绘制了本次和我们过去已报道的当归属及近缘属23种植物的核型散点图。据核型类型和近端着丝点的有无，把当归属20个种的核型分3组。并结合外部形态、花粉类型和地理分布，探讨了各近缘属的系统演化关系。
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| 关 键 词： | 当归属 柳叶芹属 古当归属 高山芹属 核型 地理分布 |
A Study on Karyotypes and Geographical Distribution of Angelica and Related Genera (Umbelliferae) in China |
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| Pan Ze-hui,Zhuang Ti-de,Yao Xin-mei,Sheng Ning.A Study on Karyotypes and Geographical Distribution of Angelica and Related Genera (Umbelliferae) in China[J].Journal of the Graduate School of the Chinese Academy of Sciences,1994,32(5):419-424. |
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| Authors: | Pan Ze-hui Zhuang Ti-de Yao Xin-mei Sheng Ning |
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| 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. |
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| Keywords: | Angelica Czernaevia Archangelica Coelopleurum Karyotype Geographical distribution China |
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