Cytological and Molecular Biological Research Progress in Plant Somaclonal Variation
植物体细胞无性系变异的细胞学和分子生物学研究进展

Different opinions about the origination of somaclonal variation, which is a very common phenomenon in plant tissue culture, exist, such as the activation of transposable elements and DNA methylation. A review about the progress achieved in this field since 1981 is presented in this paper. The genesis of somaclonal variation is discussed at both cytological level and molecular biological level.