嵌合体是指两种 或多种遗传结构的细 胞组织而言。果树的 突变,包括人工诱变 和自然芽变,往往表 现为嵌合体的形式, 特别是多倍体的突 变,大都表现为各种 类型的二倍体与多倍 体的嵌合体。因此, 开展果树嵌合体的研 究,确定嵌合体的结 构特点及类型,无论 是研究果树各种器官 的 Chimera refers to two or more genetic structures in terms of cellular tissue. Mutations in fruit trees, including artificial mutagenesis and spontaneous budding, often appear as chimeric forms, especially polyploid mutations, mostly manifested as various types of diploid and polyploid chimeras. Therefore, to carry out fruit tree chimera research to determine the structural characteristics of chimera and type, whether it is to study the various organs of fruit trees