| 夏蜡梅属的细胞地理学研究 |
| |
| 引用本文： | 李林初,.夏蜡梅属的细胞地理学研究[J].广西植物,1989,9(4):311-316. |
| |
| 作者姓名： | 李林初 |
| |
| 作者单位： | 复旦大学生物系 上海 |
| |
| 摘 要： | 本文首次报道西美蜡梅(Calycanthus occidentalis)的核型为K(2n)=22=20m(2SAT)+2sm,与美国蜡梅的变种光叶红(C.floridus var.oblongifolius)同属“2A”类型但较为原始,它们都比“1A”的夏蜡梅(C.chinensis)进化,三者由原始到进步的顺序可能为夏蜡梅—→西美蜡梅—→美国蜡梅(光叶红)。夏蜡梅属可能以较原始的夏蜡梅起源于东亚(中国),再东向迁移到北美洲(美国)形成西美蜡梅和美国蜡梅(光叶红)。
|
| 关 键 词： | 夏蜡梅属 夏蜡梅 西美蜡梅 光叶红 染色体数目 核型 细胞地理 |
CYTOGEOGRAPHICAL STUDY OF CALYCANTHUS LINNEUS |
| |
| Li,Lin Chu.CYTOGEOGRAPHICAL STUDY OF CALYCANTHUS LINNEUS[J].Guihaia,1989,9(4):311-316. |
| |
| Authors: | Li Lin Chu |
| |
| Abstract: | The present paper deals with the karyotype analysis of Calycanthus oc-cidentalis Hooker et Arnott. The karyotypic formula is K(2n)=22=2Cm (2SAT) +2sm for the first time, which belongs to "2A" type of Stebbins'20] as the same as C. flo-ridus var. oblongifolius 3]. These karyotypes are more advanced than that of C. chi-nensis ("lA" 2] ) and sequence of them from primitive to advanced may be C. chinesislllllllllllllll C. occidentalisllllllllllllll C. floridus (var. oblongifolius). The author suggested thatgenera Calyconthus might originate from Eastern Asia (China) by C. chinensis and then form C. occidentalis and C. floridus (var. oblongifolius) after migrating eastward into North America. |
| |
| Keywords: | Calycanthus C chinensis C occidentalis C floridus var oblongifoli-us Chromosome number Karyotype Cytogcography |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《广西植物》浏览原始摘要信息 |
| 点击此处可从《广西植物》下载免费的PDF全文 |
