Insights into X chromosome inactivation from studies of species variation, DNA methylation and replication, and vice versa

Research output: Contribution to journalArticlepeer-review

Abstract

I am indebted to Mary Lyon as her X-inactivation hypothesis stimulated my mentor, Barton Childs, and in turn, myself, to think about the consequences of X-inactivation in heterozygous females. I often reread her original papers setting forth the single active X hypothesis, and still marvel at the concise and compelling exposition of the hypothesis and the logical predictions which seemed prophetic at my first reading, and have survived the test of time. My contribution to this Festschrift reviews evidence derived from studies of DNA methylation, species variation and DNA replication that reveals an important role for methylated CpG islands and suggests a role for late DNA replication in propagating X inactivation from one cell to its progeny. These studies also show that X inactivation is a powerful research tool for identifying the factors which program and maintain developmental processes.

Original languageEnglish (US)
Pages (from-to)91-98
Number of pages8
JournalGenetical Research
Volume56
Issue number2-3
DOIs
StatePublished - Oct 1990

ASJC Scopus subject areas

  • Genetics

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