This workflow takes in two lists of KEGG pathway ids. These are designed to come from pathways found from genes in a QTL (Quantitative Trait Loci) region, and from pathways found from genes differentially expressed in a microarray study. By identifying the intersecting pathways from both studies, a more informative picture is obtained of the candidate processes involved in the expression of a phenotype http://soap.genome.jp/KEGG.wsdl btit Two lists of KEGG pathways are compared and common pathways extracted - for use with QTL and microarray derived pathways http://phoebus.cs.man.ac.uk:1977/axis/services/qtl_analysis.common_pathways