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| 菊科翅果菊属Pterocypsela 2种药用植物核型及系统进化意义 | |
| 引用本文： | 张代贵,向小奇,朱杰英,陈功锡,邓涛,陈庸新. 菊科翅果菊属Pterocypsela 2种药用植物核型及系统进化意义[J]. 中国中药杂志, 2012, 37(11): 1527-1531 |
| 作者姓名： | 张代贵 向小奇 朱杰英 陈功锡 邓涛 陈庸新 |
| 作者单位： | 1. 吉首大学植物资源保护与利用湖南省高校重点实验室,湖南吉首,416000 2. 中国科学院昆明植物研究所生物地理与生态学重点实验室,云南昆明650201;吉首大学植物资源保护与利用湖南省高校重点实验室,湖南吉首416000 3. 神农架林区中医医院,湖北神农架,442400 |
| 基金项目： | 国家自然科学基金项目(30770157);国家科技基础条件平台项目(2005DKA21404);湖北省重点实验室开发基金项目(2011AB001C) |
| 摘 要： | 翅果菊属Pterocypsela植物为我国重要的民族传统中药,具有较高的药用和食用价值。本研究报道了台湾翅果菊P.formosana和高大翅果菊P.elata染色体数目和核型,其中前者为首次报道,后者与先前报道一致。结果表明台湾翅果菊和高大翅果菊的体细胞染色体数都是2n=18,前者核型公式为2n=2x=18=4m+14sm,后者为2n=2x=18=2m+8sm+8st,该属植物染色体基数为x=9,二倍体,核型类别均属于"2A"型。首次报道了翅果菊属植物染色体核型不对称指数AI。通过体细胞染色体计数和染色体核型分析了该属在莴苣亚族的亲缘性,及属内物种间的系统进化关系。本研究是运用染色体资料在菊科药用植物系统分类和进化方面的尝试,为该科药用植物的鉴定、新药的亲缘筛选及良种培育提供细胞学依据。 |
| 关 键 词： | 台湾翅果菊 高大翅果菊 菊苣族 染色体 核型分析 药用植物 |
| 收稿时间： | 2011-10-23 |
Karyotype analysis and its systematic implications of Pterocypsela formosana and P. elata |
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| ZHANG Daigui,XIANG Xiaoqi,ZHU Jieying,CHEN Gongxi,DENG Tao and CHEN Yongxin. Karyotype analysis and its systematic implications of Pterocypsela formosana and P. elata[J]. China Journal of Chinese Materia Medica, 2012, 37(11): 1527-1531 | |
| Authors: | ZHANG Daigui XIANG Xiaoqi ZHU Jieying CHEN Gongxi DENG Tao CHEN Yongxin |
| Affiliation: | Key Laboratory of Plant Resources Conservation and Utilization, Jishou University, Jishou 416000, China;Key Laboratory of Plant Resources Conservation and Utilization, Jishou University, Jishou 416000, China;Key Laboratory of Plant Resources Conservation and Utilization, Jishou University, Jishou 416000, China;Key Laboratory of Plant Resources Conservation and Utilization, Jishou University, Jishou 416000, China;Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese;Key Laboratory of Plant Resources Conservation and Utilization, Jishou University, Jishou 416000, China;Shennongjia Forest District Hospital of Traditional Chinese Medicine, Shennongjia 442400, China |
| Abstract: | Pterocypsela is a very important traditional Chinese medicine from the tribe Cichorieae of Asteraceae. Mitotic chromosome numbers and karyotypes are reported for P. formosana and P. elata from Hunan and Hubei province, China. The former is new and the latter provide confirmation of previous reference. All P. taxa are diploidy with 2n=18 and their basic number is tentatively suggested as x=9. Karyotype of Pterocypsela is 2A and P. formosana with a karyotype formula of 2n=2x=18=4m+14sm, and 2n=2x=18=2m +8sm+8st for P. elata. It is the first time to report the AI value for Pterocypsela in this paper. Cytological data of chromosomal numbers and karyotypes were used to discuss the close relationships of the Pterocypsela genus and the taxonomy of the medicinal plants. |
| Keywords: | Pterocypsela Cichorieae chromosome karyotype analysis Chinese medicine |
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