| ‘赞皇大枣’不同株系的染色体数及其核型分析 |
| |
| 引用本文： | 彭建营,刘平,周俊义,彭士琪,曹清国,褚新房.‘赞皇大枣’不同株系的染色体数及其核型分析[J].园艺学报,2005,32(5):798-801. |
| |
| 作者姓名： | 彭建营 刘平 周俊义 彭士琪 曹清国 褚新房 |
| |
| 作者单位： | 1. 河北农业大学园艺学院,保定,071001
2. 河北省赞皇县林业局,赞皇,051230 |
| |
| 基金项目： | 河北省自然科学基金资助项目(300123) |
| |
| 摘 要： | 在‘赞皇大枣’原产分布区域内, 结合地理分布和形态学特点随机选取42个株系进行细胞学研究, 结果表明: 供试赞皇大枣均为三倍体, 2n = 3x = 36。对42个株系进行了染色体核型分析和比较,表明赞皇大枣存在核型多态性, 主要归纳为3类代表核型: 2n = 3x = 21m (1SAT ) + 15 sm, 2n = 3x = 15m +21 sm, 2n = 3x = 21m (2SAT ) + 15 sm; 核型对称性分别为2A、2B、2A类型。赞皇大枣可能是由二倍体品种未减数配子和同品种或不同二倍体品种正常配子天然杂交而来。
|
| 关 键 词： | 枣 株系 染色体 核型 起源 |
| 文章编号： | 0513-353X（2005）05-0798-04 |
| 收稿时间： | 2004-11-02 |
| 修稿时间： | 2004-11-022005-01-31 |
Karyotypes of Different Strains in Ziziphus jujuba Mill.'Zanhuang Dazao' |
| |
| Peng Jianying,Liu Ping,Zhou Junyi,Peng Shiqi,Cao Qingguo,Chu Xinfang.Karyotypes of Different Strains in Ziziphus jujuba Mill.''''Zanhuang Dazao''''[J].Acta Horticulturae Sinica,2005,32(5):798-801. |
| |
| Authors: | Peng Jianying Liu Ping Zhou Junyi Peng Shiqi Cao Qingguo Chu Xinfang |
| |
| Institution: | 1College of Horticulture, Agricultural University of Hebei, Baoding 071001, China; 2Forestry Bureau of Zanhuang County, Zanhuang 051230, China |
| |
| Abstract: | The karyotypes of 42 strains of Ziziphus jujuba Mill. ‘ZanhuangDazao’ randomly sampled in its original location based on geography and morphology were analyzed. The results showed that all the strains examined were triploid, 2n = 3x = 36. The polymorphism of karyotype existed in ‘Zanhuang Dazao’. The main three karyotypes were as follows: 2n = 3x = 21m (1SAT ) + 15 sm, 2n = 3x = 15m + 21 sm, 2n = 3x = 21m (2SAT ) + 15 sm. The karyotypes of three strains belonged to Stebbinsp 2A, 2B, 2A type, respectively. ‘Zanhuang Dazao’might have originated from natural crossing with 2n gametes and normal gametes. |
| |
| Keywords: | Ziziphus jujuba Mill Strain Chromosome Karyotype Origin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《园艺学报》浏览原始摘要信息 |
| 点击此处可从《园艺学报》下载免费的PDF全文 |
|
