Article
Imprinting by DNA methylation: from transgenes to endogenous gene sequences.
Development (Cambridge, England). Supplement - 1 Jan 1990
Reik W, Howlett S K, Surani M A
Abstract excerpt
A number of transgenes in the mouse show variation in methylation and expression phenotypes dependent on parental transmission. It appears that there exist at least two types of transgene imprinting; one is retained on an essentially homozygous background, while the other requires heterozygosity at some modifying loci in the genome and is observed as differences in phenotype in reciprocal crosses. For this type...
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