摘要

<正>(2019年9月被SCIE收录)www.journals.elsevier.com/genes-and-diseasesEpigenetics,first coined by Conrad Waddington in 1942,is currently defined as the study of heritable changes in gene expression that do not involve alteration of the DNA sequence itself.The word"epigenetic"literally means"in addition to,above,or on top of the changes in