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。
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.
作者
乔永刚
王立
宋芸
梁建萍
冯前进
王金胜
QIAO Yong-gang WANG Li SONG Yun LIANG Jian-ping FENG Qian-jin WANG Jin-sheng(College of life Sciences, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi Province 030601, China)
出处
《草地学报》
CAS
CSCD
北大核心
2016年第3期699-702,共4页
Acta Agrestia Sinica
基金
山西省科技攻关项目(20140312001-2)
山西农业大学横向科技项目(2014hx60)
山西农业大学育种基金(2014yz07)资助
山西省高等学校教学改革项目(J2015028)
关键词
膜荚黄芪
蒙古黄芪
染色体数目
核型
A. membranaceus (Fisch.) Bge.
A. membranaceus (Fisch.) Bge. var. mongholicus (Bge.)Hsiao
Chromosome number
Karyotype