豆科山羊豆族2属5种植物的核型分析  

Karyotype of 5 Leguminosae species in Trib.Galegeae from Northwest China

作　　者：黎斌[1] 李思锋[1] 吴振海[2] 常朝阳[2] 

机构地区：[1]陕西省西安植物园,西安710061 [2]西北农林科技大学生命科学学院,陕西杨陵712100

出　　处：《西北植物学报》2007年第9期1888-1891,共4页Acta Botanica Boreali-Occidentalia Sinica

基　　金：国家林业局林业科技支撑项目(2006BAD03A1202)

摘　　要：报道了产于中国西北地区豆科山羊豆族2属5种植物的核型.结果表明,这5种豆科植物均为二倍体,其核型公式分别为:单叶黄耆(Astragalus efoliolatus),2n=16=12m+4sm,2A"核型;鸡峰山黄耆(A.kifonsanicus),2n=16=12m+4sm,2A"核型;太原黄耆(A.taiyuanensis),2n=16=8m+6sm+2t(2SAT),2B"核型;变异黄耆(A.variabilis),2n=16=14sm+2t(2SAT),3A"核型;贺兰山岩黄耆(Hedysarum petrovii),2n=16=12m+4sm(2SAT),2A"核型.除变异黄芪外,其余各种的染色体数目及核型均为首次报道.The karyotypes of 5 Leguminous species in Trib. Galegeae （Leguminosae） from northwest China were reported in this paper for the first time. The results showed that all 5 species were diploid. Their chromosome numbers and karyotypes are formulated as follows：Astragalus efoliolatus ,2n= 16= 12m＋4sm, ＂2A＂ type;A, kifonsanicus,2n= 16=12m＋4sm,＂2A＂ type;A, taiyuanensis, 2n= 16= 8m＋ 6sm＋2t（2SAT ）, ＂2B＂ type;A, variabilis,2n=16=14sm＋2t（2SAT ）, ＂3A＂ type; Hedysarum petrovii, 2n= 16=12m＋ 4sm（2SAT ）, ＂2A＂ type. The karyotypes are all reported here for the first time except for A. variabilis.

关 键 词：豆科 黄耆属 岩黄耆属 核型 

分 类 号：Q343[生物学—遗传学] Q949.751.9