We conclude that natural vineyard populations of S. cerevisiae can harbor alleles that cause massive alterations in the global patterns of gene expression. Supplemental Data for Proc. 97, Issue 22, 12369-12374, October 24, 2000. This image is the first demonstration of extensive variation in global gene expression within natural populations. Bright green spots represent genes abundantly expressed in the filigreed strain compared to the smooth strain, many of which are amino acid biosynthesis genes.
Yellow spots represent genes equally expressed in both offspring.
Red spots represent genes abundantly expressed in the smooth offspring compared to the filigreed offspring, many of which are amino acid permeases and transporters.