Fig. 2
From: fagin: synteny-based phylostratigraphy and finer classification of young genes
fagin classifies the genomic context. Fagin infers genomic context of query genes or other genomic features on the focal genome by searching for homologous sequence within syntenic search intervals on the target genome. For protein-coding query genes, fagin searches for homology to the protein (aa)(a) or entire sequence (nt) (b) of the query gene. It also categorizes the unknown (c). Grey bars in C, syntenic links. The fagin classification is indicated below each query, in bold black font. Rooting the homology searches to the syntenic regions narrows the search space, thereby increasing the sensitivity