Supertrees inferred by PhySIC_IST from two different collections of source trees. Supertrees in (a-b) are produced by the PhySIC_IST analysis of 50 gene trees obtained from the OrthoMaM database queried for sequences longer than 3000 bp. Tree (a) is inferred without the STC preprocess while tree (b) is inferred with this preprocess, setting the threshold to 90%. Supertrees in (c-d) are produced from 157 gene trees inferred from sequences longer than 2000 bp. Tree (c) is inferred without the STC preprocess while tree (d) is inferred with STC, setting the statistical threshold to 90%.