The genetics and variation in Actinidia were studied by analysis of genomic DNAsextracted by the improved CTAB method from 10 species including 42 biotypes.

• 本文以猕猴桃 10 个种、34 个栽培品种共 42 个生物型的叶片为试验材料,采用改良 CTAB 法提取基因组 DNA,对猕猴桃各生物型遗传变异进行研究。