Genomic imprinting in mammalian development: a parental tug-of-war

Trends Genet. 1991 Feb;7(2):45-9. doi: 10.1016/0168-9525(91)90230-N.


Genomic imprinting in mammals is increasingly being implicated in developmental and pathological processes, but without a clear understanding of its function in normal development. We believe that imprinting has evolved in mammals because of the conflicting interests of maternal and paternal genes in relation to the transfer of nutrients from the mother to her offspring. We present an hypothesis that accounts for many of the observed effects of imprinting in mammals and relates them to similar observations in plants. This hypothesis has implications for studies of X-chromosome inactivation and a range of human diseases.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Biological Evolution*
  • Embryonic and Fetal Development / genetics
  • Gene Expression*
  • Humans
  • X Chromosome / metabolism*