摘要
本文对黑龙江省栽培的黑穗醋栗(Ribes migrum L)两个品种,即厚皮长穗和薄皮黑豆,进行了核型分析。其染色体数目均为2n=2x=16,核型公式为2n=16=16m,核型均由中部着丝点染色体组成,均具有一对随体,文中并对起源问题进行了讨论。
The karyotypes of two cultivars(Houpichangsui and Baopiheidou)of the black currant(Ribes nigrum L.)are studied in the paper.The chromosome number of each karyotype is2n=2x=16.The karyotype formula is 2n=16=16m.All chromosomes of both karyotypesare mediocentric.There is one pair of satellite chromosomes in them.The origin of these twocultivars is also discussed.
关键词
黑穗醋栗
核型
染色体数目
Ribes nigrum L.,karyotype
number of chromosomes
