The results of cluster analys is show that the genetic relationship between different strains of Da-maya is c loser than that of Er-maya, which proves that it is feasible to differentiate the cultivated groups in molecular level on outside character.

• 聚类分析结果表明 :大马牙类型内各品系间的亲缘关系近于与二马牙类型各品系样品间的亲缘关系 ,从分子水平证明了根据表征性状对栽培类群进行划分是可行的。