植物表观遗传学 巩志忠 中国农业大学生物学院 Tel: 6273-3733 Email: Epigenetics(表观遗传学):是指以不涉及到 DNA序列的改变、但可以通过有丝分裂和减数分 裂进行遗传的生物现象。自然界中的表观遗传学现象: Paramutation 最早的例子来自果蝇的变化。 Muller, H.J. (1930). Types of visible variations induced by x-rays in Drosophila. J Genet. 22, 299334. Hinton, T., and Goodsmith, W. (1950). An analysis of phenotypic reversions at the brown locus in Drosophila. J. Exp. Zool. 114, 103114.Paramutation has been extensively characterized at three maize loci: r1,b1 ( helixloop-helix (bHLH) factors), and p