Overview: I am nominating myself for a NIH Director s Pioneer Award, which ifawarded, I would use to investigate homology-dependent epigenetic mechanisms of generegulation in animal models and eventually humans. One aspect of my research has been tostudy a phenomenon called paramutation, which was discovered in plants and involves allelecommunication that leads to a mitotically and meiotically heritable change in gene expression.My hypothesis is that the paradigm-shifting mechanisms of allele communication, which wehave uncovered operating in plant chromatin, also exists in mammals and could explain theaberrant segregation of certain genetic diseases.I have organized this essay in 3 sections. In Background and Significance, I defineepigenetics, briefly summarize the fields current understanding of mechanisms and discuss itsimportance for understanding a number of human diseases. In Prior and Current Work, Isummarize our prior work on paramutation, using this as a basis for illustrating my approach toscience providing evidence for why this nomination should be considered in the NDPA process.In New Research Direction, I briefly describe the new approaches I am proposing, explain howthis builds on my past work, and discuss why the NDPA process provides a unique opportunityto pursue this work.
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