AUTHOR=Rastegar Mojgan , Yasui Dag H. TITLE=Editorial: Epigenetic Mechanisms and Their Involvement in Rare Diseases JOURNAL=Frontiers in Genetics VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2021.755076 DOI=10.3389/fgene.2021.755076 ISSN=1664-8021