Most cells of humans, animals, plants and fungi contain two sets of chromosomes with specific chromosome numbers, for example in humans there are two sets of 23 chromosomes as carriers of genetic information. However, polyploid cells with more than two sets of chromosomes also frequently occur in nature. Polyploidy contributes to evolution, functional specialization or to the emergence of diseases. A research team led by Professor Dr. Zuzana Storchova at the Technical University of Kaiserslautern (TUK) has investigated whether the protein content also increases linearly with the number of chromosome sets. The results of the study have been published in the journal Nature Communications.