MeSH definition : The effects on gene expression that depend on the location of a gene with respect
to its neighboring genes and region of chromosome. Stable position effects are sequence
dependent. Variegated position effects depend on whether the gene is located in or
adjacent to HETEROCHROMATIN or EUCHROMATIN.;
MeSH synonym : chromosomal position effect; position effect, chromosomal; position effects, chromosomal;
MeSH hyponym : position effect variegation;
Wikipedia link : https://en.wikipedia.org/wiki/Position effect variegation;
The effects on gene expression that depend on the location of a gene with respect
to its neighboring genes and region of chromosome. Stable position effects are sequence
dependent. Variegated position effects depend on whether the gene is located in or
adjacent to HETEROCHROMATIN or EUCHROMATIN.