Fig. 1: Illustrations of the gene age and visual presentation of data sources.
From: Evolution of novel genes in three-spined stickleback populations
a Examples for how genes of different ages are distributed across the analysed species. Each circle represents one gene being present in one species. Each gene is displayed on a separate row. Genes in the same row represent orthologs. Colours are used to distinguish age classes. b Locations of the population pairs the data was sampled from. c Visual representation of the organs sampled. d Pictogram depicting how CNV events can lead to gene duplication, deletion or de novo gene emergence.
