Figure 1From: Transcriptomic profiling of proteases and antiproteases in the liver of sexually mature hens in relation to vitellogenesisDistribution of genes that are over-expressed in the liver of laying hens versus pre-laying pullets. Numbers illustrate the numbers of genes that are known, unknown/uncharacterized or having a homolog in other species (similar to). Their relative percentages are indicated in parenthesis.Back to article page