| 二倍体野生棉的核型变异和进化 |
| |
| 引用本文： | 聂汝芝,李懋学.二倍体野生棉的核型变异和进化[J].Acta Botanica Sinica,1989(3). |
| |
| 作者姓名： | 聂汝芝 李懋学 |
| |
| 作者单位： | 四川农业科学院中心实验室 成都(聂汝芝)，北京大学生物系 北京(李懋学) |
| |
| 摘 要： | 本文对棉属(Gossypium)二倍体野生种5个组的代表种即 B_1(G.anomalum),C_1(G.sturtianum),E_1(G.stocksii),F(G.longicalyx)和 G(G.bickii)的核型进行了分析。提出分布于非洲南北的 B 组野生种为最原始的类型,以此为中心呈辐射状分化和迁移,形成了现今的特殊的地理分布。
|
| 关 键 词： | 棉属 二倍体野生种 核型 进化 |
THE VARIATION AND EVOLUTION OF KARYOTYPE IN DIPLOID WILD COTTONS |
| |
| Authors: | Nie Ru-zhi |
| |
| Abstract: | The karyotypes of five genomic groups in type species of Gossyplum;B_1(G.anomalum)_5 C_1(G.sturtianum),E_1(G.stocksii),F(G.longicalyx),and G(G.bickii)were analyed in this paper.Coupled with the studies of the karyotypes A_1(G.herbaceum)and D_5(G.raimon- dii)in the former report,and in view of the interspecific crosses,DNA content,the electrop- horetic analysis of seed proteins and morphological and geographical classification,the authors infer that the B genome distributed across Africa from North to South may be the most pri- mitive type,with the differentiation and migration of the B genome as a radiating center,it forms the specific distribution at present time. |
| |
| Keywords: | Gossypium Diploid wild species Karyotype Evolution |
| 本文献已被 CNKI 等数据库收录！ |
|
