Chromosome study of the fern genus Cyrtomium (Dryopteridaceae)
文献类型：期刊论文
| 作者 | Lu, JM ; Cheng, X; Wu, D; Li, DZ
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| 刊名 | BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
 |
| 出版日期 | 2006-02-01 |
| 卷号 | 150期号:2页码:221-228 |
| 关键词 | apogamy Balansana polyploidy |
| 英文摘要 | Cyrtomium (Dryopteridaceae) is an Asiatic genus comprising about 40 species characterized by having anastomosing veins that form areolae with included veinlets. Twelve chromosome counts representing 11 taxa were made in the present study. The chromosome numbers of six species endemic to China are reported for the first time: C. uniseriale, 2n = 164; C. guizhouense, 2n = 82; C. shingianum, n = 82, 2n = c.164; C. chingianum, 2n = 164; C. urophyllum, 2n = 82 and C. aequibasis, 2n = 123. The results were used to show that (1) C. uniseriale should be reduced to varietal status under C. balansae; (2) subseries Balansana is not closely related to any other Cyrtomium species and should be separated from Cyrtomium; and (3) C. guizhouense and C. lonchitoides are basal groups when subseries Balansana is not considered. These results were also supported by morphology. A high level of differentiation is a distinct characteristic in Cyrtomium. The genus has two reproductive types: sexual and apogamous. Sexual species are distributed mostly in China. Southwestern China is a modern diversity centre of Cyrtomium, with 80.6% of known species occurring there. Many species are endemic, most of which are sexual tetraploids or apogamous triploids. Both the apogamous reproductive type and polyploid species are adaptions to limestone habitats. (c) 2006 The Linnean Society of London. |
| 学科主题 | Plant Sciences |
| 类目[WOS] | Plant Sciences |
| 研究领域[WOS] | Plant Sciences |
| 关键词[WOS] | PHANEROPHLEBIA DRYOPTERIDACEAE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000234919000007 |
| 公开日期 | 2012-06-12 |
| 源URL | [http://ir.kib.ac.cn:8080/handle/151853/11207]  |
| 专题 | 昆明植物研究所_中国西南野生生物种质资源库 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Lab Plant Biogeog & Biodivers, Kunming 650204, Yunnan, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, JM,Cheng, X,Wu, D,et al. Chromosome study of the fern genus Cyrtomium (Dryopteridaceae)[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2006,150(2):221-228. |
| APA | Lu, JM,Cheng, X,Wu, D,&Li, DZ.(2006).Chromosome study of the fern genus Cyrtomium (Dryopteridaceae).BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,150(2),221-228. |
| MLA | Lu, JM,et al."Chromosome study of the fern genus Cyrtomium (Dryopteridaceae)".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 150.2(2006):221-228. |
入库方式： OAI收割
来源：昆明植物研究所
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