| Literature DB >> 19802705 |
Carolyn A Bondy1, Clara Cheng.
Abstract
Dosage compensation serves to equalize X chromosome gene expression in mammalian males and females and involves extensive silencing of the 2nd X chromosome in females. If dosage compensation mechanisms completely suppressed the 2nd X chromosome, then actual physical loss of this "eXtra" chromosome should have few consequences. However, X monosomy has major effects upon normal development, fertility and longevity in humans and some other species. This article reviews observations and arguments attempting to explain the phenotypic effects of X monosomy in humans and other mammals in terms of X chromosome gene dosage.Entities:
Mesh:
Year: 2009 PMID: 19802705 DOI: 10.1007/s10577-009-9052-z
Source DB: PubMed Journal: Chromosome Res ISSN: 0967-3849 Impact factor: 5.239