Cytotaxonomic study of genus Hymenasplenium (Aspleniaceae) in Xishuangbanna, southwestern China
文献类型：期刊论文
| 作者 | Cheng, X; Murakami, N |
| 刊名 | JOURNAL OF PLANT RESEARCH
 |
| 出版日期 | 1998-12-01 |
| 卷号 | 111期号:1104页码:495-500 |
| 关键词 | Apogamy Aspleniaceae Chromosome Number Cytotaxonomy Hymenasplenium Yunnan Province |
| ISSN号 | 0918-9440 |
| 文献子类 | Article |
| 英文摘要 | The gametic chromosome numbers of seven Hymena-splenium (Aspleniaceae) species from Xishuangbanna, Yunnan Prov., China, were investigated. All the examined individuals of H.obscorum, H.cheilosorum and H. latipinnum were sexual diploids with n = 39 chromosomes. Intraspecific cytological variation was found in H. excisum, which has a sexual diploid (n = 39) and a tetraploid (n = 78). Only a triploid apogamous cytotype (n = ca. 117) was found in H. laterepens. Hymenasplenium apogamum showed the most complicated intraspecific variation and included a sexual diploid (n = 39), a sexual tetraploid (n = 78) and an apogamous triploid (n = ca.117). This work reports for the first time the sexual diploids of H.cheilosorum and H. apogamum, which are only apogamous elsewhere in east Asia, Himalayas and Indochina. These results may indicate that this area is one of the diversity centers of Hymenasplenium. Most of the above species have chromosome numbers based on x = 39. In contrast, H. costarisorum contains a sexual diploid (n = 36) and a sexual tetraploid (n = 72), indicating that its basic number is x = 36. |
| 学科主题 | Plant Sciences |
| WOS关键词 | SYSTEMATICS |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000077874600004 |
| 公开日期 | 2011-12-06 |
| 源URL | [http://ir.kib.ac.cn:8080/handle/151853/2311]  |
| 专题 | 昆明植物研究所_资源植物与生物技术所级重点实验室 |
| 作者单位 | 1.Kyoto Univ, Grad Sch Sci, Dept Bot, Kyoto 6068502, Japan 2.Acad Sinica, Kunming Inst Bot, Kunming 650204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, X,Murakami, N. Cytotaxonomic study of genus Hymenasplenium (Aspleniaceae) in Xishuangbanna, southwestern China[J]. JOURNAL OF PLANT RESEARCH,1998,111(1104):495-500. |
| APA | Cheng, X,&Murakami, N.(1998).Cytotaxonomic study of genus Hymenasplenium (Aspleniaceae) in Xishuangbanna, southwestern China.JOURNAL OF PLANT RESEARCH,111(1104),495-500. |
| MLA | Cheng, X,et al."Cytotaxonomic study of genus Hymenasplenium (Aspleniaceae) in Xishuangbanna, southwestern China".JOURNAL OF PLANT RESEARCH 111.1104(1998):495-500. |
入库方式： OAI收割
来源：昆明植物研究所
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