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| 两个黄芪亚种染色体数目与核型分析 | |
| 引用本文： | 乔永刚,王立,宋芸,梁建萍,冯前进,王金胜.两个黄芪亚种染色体数目与核型分析[J].草地学报,2016,24(3):699-702. |
| 作者姓名： | 乔永刚 王立 宋芸 梁建萍 冯前进 王金胜 |
| 作者单位： | 1. 山西农业大学生命科学学院, 山西 太谷 030801; 2. 山西中医学院, 山西 晋中 030601 |
| 基金项目： | 山西省科技攻关项目(20140312001-2),山西农业大学横向科技项目(2014hx60),山西省高等学校教学改革项目(J2015028),山西农业大学育种基金(2014yz07) |
| 摘 要： | 前人研究认为膜荚黄芪（Astragalus membranaceus（Fisch.）Bge.）与蒙古黄芪（Astragalus membranaceus（Fisch.）Bge.var.mongholicus （Bge.）Hsiao）染色体数目为2n=16。本试验采用根尖染色体常规制片方法,观察了膜荚黄芪与蒙古黄芪种子根尖有丝分裂相。结果显示：膜荚黄芪与蒙古黄芪染色体数目为2n=18,这2种植物各有4条小染色体。膜荚黄芪染色体核型公式为K（2n）=2x=18=4sm+14m,核型类型为2B型。蒙古黄芪染色体核型公式为K（2n）=2x=18=6sm+12m,核型类型为2C型。 |
| 关 键 词： | 膜荚黄芪 蒙古黄芪 染色体数目 核型 |
| 收稿时间： | 2014-12-10 |
The Chromosome Number and karyotype of Two Astragalus Species |
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| QIAO Yong-gang,WANG Li,SONG Yun,LIANG Jian-ping,FENG Qian-jin,WANG Jin-sheng.The Chromosome Number and karyotype of Two Astragalus Species[J].Acta Agrestia Sinica,2016,24(3):699-702. | |
| Authors: | QIAO Yong-gang WANG Li SONG Yun LIANG Jian-ping FENG Qian-jin WANG Jin-sheng |
| Institution: | 1. College of life Sciences, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China; 2. Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi Province 030601, China |
| Abstract: | Previous studies suggested that the chromosome number of Astragalus membranaceus (Fisch.) Bge. and Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao were 2n=16. Karyotype analysis showed that the chromosome number of this two species were 2n=18, by using routine chromosome preparation method of root tip. Four small chromosomes on both species were found. Karyotype formula of A. membranaceus (Fisch.) Bge. was K(2n)=2x=18=4sm+14m and the karyotype belonged to "2B" Stebbins. Karyotype formula of A. membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao was K(2n)=2x=18=6sm+12m and the karyotype belonged to "2C" Stebbins. |
| Keywords: | A membranaceus (Fisch ) Bge A membranaceus (Fisch ) Bge var mongholicus (Bge )Hsiao Chromosome number Karyotype |
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