Species-wide quantitative transcriptomes and proteomes reveal distinct genetic control of gene expression variation in yeast.

At the level of individual genes, the abundance of transcripts and proteins is weakly correlated within a species ( = 0.165). While the proteome is not imprinted by population structure, co-expression patterns recapitulate the cellular functional landscapeWild populations exhibit a higher abundance of respiration-related proteins compared to domesticated populationsLoci that influence protein abundance differ from those that impact transcript levels, likely because of protein turnover.