Figure 3From: Identification of conserved gene clusters in multiple genomes based on synteny and homologyAgglomeration of δ -syntenies in δ -zones Example of δ-syntenies’ agglomeration by transitivity (see example 5): δ-clusters Σ1 = {f7, f8} and Σ2 = {f4, f8} are witnessed by gene sets indicated by ✰ and • symbols, respectively. They are merged in one δ—zone {f4, f8, f7} based on witness intersection {(9, f8)c2, (2, f8)c3}.Back to article page