摘要
报道了国产黄耆属 Astragalus 6种植物的染色体数目和核型.结果表明,这6种黄耆属植物均为二倍体,其核型公式分别为:甘青黄耆 A.tanguticus ,2n=16=6m+8sm+2t, 3A 核型;悬垂黄耆 A.dependens ,2n=16=10m+6sm, 2A 核型;四川黄耆 A.sutchuenensis ,2n=16=8m+8sm, 2A 核型;萨雷古拉黄耆 A.pavlovianus ,2n=16=12m+4sm, 1A 核型;喜石黄耆 A.petraeus ,2n=16=14m+2sm, 1A 核型;拟糙叶黄耆 A.pseudoscaberrimus ,2n=16=14m+2sm, 1A 核型.这6种黄耆属植物的染色体数目和核型均为首次报道.
The chromosome numbers and karyotypes of six Astragalus species from China are reported in this paper for the first time.The results show that all 6 species are diploid.Their chromosome numbers and karyotypes are formulated as follows: A.tanguticus ,2n=16=6m+8sm+2t,'3A' type; A.dependens ,2n=16=10m+6sm,'2A' type; A.sutchuenensis ,2n=16=8m+8sm,'2A' type; A.pavlovianus ,2n=16=12m+4sm,'1A' type; A.petraeus ,2n=16=14m+2sm,'1A' type; A.pseudoscaberrimus ,2n=16=14m+2sm,'1A' type.
出处
《西北植物学报》
CAS
CSCD
2004年第4期711-715,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家自然科学基金资助项目(30270106 )
关键词
黄耆属
染色体数目
核型
Astragalus
chromosome number
karyotype