菊科栽培植物黄莺花的核型分析

Karyotype of Solidago canadensis var. gilvocanescens Rydb.,A Cultivar in the Asteraceae

研究了我国广东佛山栽培的菊科(Asteraceae)植物黄莺花(Solidago canadensis var.gilvocanescens Rydb.)的染色体数目和核型。其染色体数目为2n=18,带有一对随体,核型公式为2n=2x=18=14m+4sm(2SAT),核型类型为"2A"型。

The chromosome number and karyotype of a cultivar in the Asteraceae, Solidago canadensis var. gilvocanescens Rydb., cultivated in Foshan City, Guangdong Province, China, were reported. The chromosomes were counted to be 2n=18, and one pair of them had satellites on their short arms. The karyotype was formulated as 2n=2x=18=14m＋4sm （2SAT）, and belonged to Stebbins’ 2A type.