| 国产12种乌头属和18种翠雀属植物的细胞学研究 |
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| 引用本文： | 杨亲二.国产12种乌头属和18种翠雀属植物的细胞学研究[J].中国科学院研究生院学报,2001,39(6):502-514. |
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| 作者姓名： | 杨亲二 |
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| 摘 要： | 研究了12种乌头属Aconitum L．和18种翠雀属Delphinium L．植物的染色体。在12种乌头属植物中，除粗花乌头A．crassiflorum为四倍体(2n=4x=32)外，其他种类都为二倍体(2n=2x＝16)，中甸乌头 A.piepunense中有B染色体存在，牛扁亚属Aconitum subgen．Lycoctonum的二倍体植物与乌头亚属Aconitum subgen．Aconitum 植物的染色体在大小和形态上有明显区别；所有18种翠雀属植物都为二倍体(2n＝2x=16)，其染色体在大小和形态上极为相似，但与乌头亚属的染色体易于区别。翠雀属植物的核型不对称性程度明显高于乌头属植物，因此从染色体证据来看，翠雀属要比乌头属进化。
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| 关 键 词： | 乌头属 翠雀属 染色体 核型进化 |
Cytologyof 12 species in Aconitum L. and of 18 species in Delphinium L. of the tribe Delphineae (Ranunculaceae) from China |
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| YANG Qin-Er.Cytologyof 12 species in Aconitum L. and of 18 species in Delphinium L. of the tribe Delphineae (Ranunculaceae) from China[J].Journal of the Graduate School of the Chinese Academy of Sciences,2001,39(6):502-514. |
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| Authors: | YANG Qin-Er |
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| Abstract: | Cytology of 12 species in Aconitum L. and of 18 species in Delphinium L. of the tribe
Delphineae (Ranunculaceae) from China have been investigated. Only A. crassiflorum is a tetra-
ploid with the chromosome number of 2n = 32, and all the other Aconitum species studied are dip-
loids with 2n = 16. In A. piepunense, up to six B-chromosomes were observed. All the Delphinium
species are diploids with 2n = 16; their karyotypes are very similar among the species, and are dis-
tinctly distinguishable from those of Aconitum species with respect to the chromosome size, chromo-
some morphology and karyotype asymmetry. From a cytological view, Delphinium seems to be more
advanced than Aconitum, as the karyotypes in Delphinium are more asymmetric than those in Aconi-tum. |
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| Keywords: | Aconitum L Delphinium L Chromosome Karyotype evolution |
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