Journal
COLD SPRING HARBOR PERSPECTIVES IN BIOLOGY
Volume 4, Issue 7, Pages -Publisher
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/cshperspect.a008136
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- NIGMS NIH HHS [R01 GM101974] Funding Source: Medline
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Epigenetic mechanisms are extensively utilized during mammalian development. Specific patterns of gene expression are established during cell fate decisions, maintained as differentiation progresses, and often augmented as more specialized cell types are required. Much of what is known about these mechanisms comes from the study of two distinct epigenetic phenomena: genomic imprinting and X-chromosome inactivation. In the case of genomic imprinting, alleles are expressed in a parent-of-origin-dependent manner, whereas X-chromosome inactivation in females requires that only one X chromosome is active in each somatic nucleus. As model systems for epigenetic regulation, genomic imprinting and X-chromosome inactivation have identified and elucidated the numerous regulatory mechanisms that function throughout the genome during development.
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