摘要
本文报道了豆科瓜尔豆和旋花科跌打豆的染色体数目及核型.结果表明:瓜尔豆的染色体数目为2n=16。核型公式K(2n)=14m+28m,有7对具中部着丝点染色体和1对具近中部着丝点染色体。跌打豆的核型公式K(2n)=30m(2SAT),全部由具中部着丝点染色体组成。按Stebbins的分类标准,二者均属1A类型。
This article reports chromosome number and karyotype analyais of Cyamopsis tetragonoloba and Calonyction muricotum.The results showed that chromosome number is 2n=16 and karyotypic formula is K(2n)=14m+2sm of the former.There are seven pairs chromosomes to be metacentrics,the other one pairs are submetacentrics. The karyotypic formula of the latter is K(2n)=30m(2SAT),there are all composed of metacentric chromosomes.Based on taxoncmical Standard of Stebbins,the above mentioned both belong to 1A type.
出处
《广西植物》
CAS
CSCD
北大核心
1995年第2期163-165,共3页
Guihaia
关键词
瓜尔豆
跌打豆
染色体组型
Cyamopsis tetragonoloba
Calonyotion muricatum
karyotype