Lines with large and small flowers (good for females and males, respecively) have been generated by artificial selection. Gene expression differences between those lines should reveal the first genes that respond to such sexually antagonistic selection.
Plants from the same population have been selected for 4 generations on flower size. Both large and small flower size lines have been generated.
Flower size has different optima yet differs between the sexes, with large flowers being beneficial to females. We are investigating the changes in gene expression associated with selection in one sex at a time.
We are particularly interested in the genomic location of genes that respond to sex-specific selection.