| A cyto-evolutional study of Campanumoea Blume (Campanulaceae) and a possible pathway for secondary karyotype formation | |
| Zhang, Yun-Feng1; Zhang, Chun-Yong1; Zhang, Ting2; Guan, Hui-Ling3; Yan, Sheng-Qi1 | |
| 2010-03-01 | |
| 发表期刊 | PLANT SYSTEMATICS AND EVOLUTION
 |
| 卷号 | 285期号:3-4页码:245-257 |
| 摘要 | Campanumoea is a small genus in the family Campanulaceae, with species divided into sections Campanumoea and Cyclocodon. Sixteen accessions from Campanumoea and related genera native to China were used to study their karyotype. The results showed that chromosome characteristics were different between the two sections. For Campanumoea, the karyotypic formula was 2n = 2X = 2m + 12sm + 2st = 16,3A and for Cyclocodon it was 2n = 2X = 6m + 12sm = 18,3B. These data, combined with chromosomal length characteristics, support the restoration of section Cyclocodon as a genus. However, the incorporation of section Campanumoea into Codonopsis requires more evidence. Comparison of chromosomal length and haploid set length revealed that chromosomal segment rearrangements occurred within sections of Campanumoea and between genera, with the difference within sections being greater than that between genera. Therefore, chromosomal segment rearrangements are present in Campanulaceae, implying that chromosomal segment rearrangement plays an important role in the evolution of diversity in Campanulaceae. By comparing the chromosomal characteristic in section Campanumoea and the genus Adenophora, we concluded that the secondary chromosome type such as n = 17, 18 would be derived by autopolyploidization of n = 9, and by chromosome fusion. |
| 关键词 | Campanumoea Blume (Campanulaceae) Karyotypic Formula Chromosomal Segment Rearrangement Autopolyploidization |
| 学科领域 | Plant Sciences ; Evolutionary Biology |
| DOI | 10.1007/s00606-009-0265-6 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277344600011 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/11261 |
| 专题 | 中国西南野生生物种质资源库 |
| 作者单位 | 1.Yunnan Normal Univ, Sch Biol Sci, Kunming 650092, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China 3.Yunnan Normal Univ, Coll Energy Sources & Environm, Kunming 650092, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yun-Feng,Zhang, Chun-Yong,Zhang, Ting,et al. A cyto-evolutional study of Campanumoea Blume (Campanulaceae) and a possible pathway for secondary karyotype formation[J]. PLANT SYSTEMATICS AND EVOLUTION,2010,285(3-4):245-257. |
| APA | Zhang, Yun-Feng,Zhang, Chun-Yong,Zhang, Ting,Guan, Hui-Ling,&Yan, Sheng-Qi.(2010).A cyto-evolutional study of Campanumoea Blume (Campanulaceae) and a possible pathway for secondary karyotype formation.PLANT SYSTEMATICS AND EVOLUTION,285(3-4),245-257. |
| MLA | Zhang, Yun-Feng,et al."A cyto-evolutional study of Campanumoea Blume (Campanulaceae) and a possible pathway for secondary karyotype formation".PLANT SYSTEMATICS AND EVOLUTION 285.3-4(2010):245-257. |
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