Searching of Catalog content is now via a single search bar, with more searchable fields and improved functionality. The new search is driven by a Solr index (http://lucene.apache.org/solr/), which allows simultaneous searching across a wide range of data fields, including title, author, journal, reported trait, mapped (ontology) trait, sample descriptions, genes and SNPs. In addition, it also provides ontology expansion support, returning results for mapped trait's synonyms and child terms. For example, a search of ‘inflammatory bowel disease’ will also return results for children of this trait such as ‘Crohn's disease’ and ‘ulcerative colitis’. Equally, search results for ‘cancer’ will include all sub-types of cancer, whether they contain a lexical match to ‘cancer’ (e.g. breast cancer, esophageal cancer) or not (e.g. Ewing sarcoma, acute myeloid leukemia).