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= xQTL Introduction =

xQTL workbench is a scalable web system for the
integrated mapping of thousands of quantitative trait loci (QTLs) at
multiple levels: 

* gene expression (eQTL), 
* protein abundance (pQTL),
* metabolite abundance (mQTL) and 
* phenotype (phQTL) levels. 

Main features:
* Popular QTL mapping methods are accessible via the web user
interface, 
* large calculations scale easily on to multi-core computers,
clusters, and Cloud, and 
* all data involved can be uploaded and
queried online: 
 * markers, 
 * genotypes, 
 * microarrays, 
 * NGS, 
 * LC-MS,
 * GC-MS, 
 * NMR, etc. 
When new data types come available, xQTL
workbench can be rapidly customized using the Molgenis toolkit. See MolgenisGuide.