| Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae) | |
| Li, Wei-Ping1; Tang, Ming1; Yin, Gen-Shen2; Yin, Ying1; Yang, Fu-Sheng3; Chen, San-Mao1 | |
| 通讯作者 | lwp@hunnu.edu.cn |
| 2011-04-01 | |
| 发表期刊 | BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
 |
| ISSN | 0024-4074 |
| 卷号 | 165期号:4页码:378-387 |
| 摘要 | Aster ageratoides var. pendulus, a recently described taxon, is endemic to Mt Hupingshan of north-western Hunan, China. Field observations and collections were made from the only known population. Root-tip squashes were used to determine the chromosome numbers of 96 plants and 61 seedlings from the achenes of eight sample plants. The results show that var. pedulus is a swarm of 30 cytotypes with nearly continuous chromosome numbers from 2n = 60 to 2n = 92. Chromosome numbers of 61 seedlings vary from 2n = 61 to 2n = 91, belonging to 18 cytotypes. The chromosome number variation of var. pendulus is highly unusual not only in the A. ageratoides polyploid complex but also in angiosperms. Such an enormous continuous variation of chromosome numbers could have arisen by the combined effect of hybridization, recent origin and high levels of polyploidy. (C) 2011 The Linnean Society of London, Botanical Journal of the Linnean Society, 2011, 165, 378-387. |
| 关键词 | Aneuploidy High Polyploidy Hybridization Mt Hupinshan Natural Population Neopolyploid |
| 学科领域 | Plant Sciences |
| DOI | 10.1111/j.1095-8339.2011.01114.x |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000288704200005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/3934 |
| 专题 | 中国科学院东亚植物多样性与生物地理学重点实验室 |
| 作者单位 | 1.Hunan Normal Univ, Coll Life Sci, Changsha 410081, Hunan, Peoples R China 2.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China 3.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Wei-Ping,Tang, Ming,Yin, Gen-Shen,et al. Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae)[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2011,165(4):378-387. |
| APA | Li, Wei-Ping,Tang, Ming,Yin, Gen-Shen,Yin, Ying,Yang, Fu-Sheng,&Chen, San-Mao.(2011).Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae).BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,165(4),378-387. |
| MLA | Li, Wei-Ping,et al."Extensive chromosome number variation in Aster ageratoides var. pendulus (Asteraceae)".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 165.4(2011):378-387. |
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