2.1.2 TOdb

MetaQTL can also used a trait ontology in order to group the QTL in trait categories which refer to the same genetic determinism. The ontology representation handles by MetaQTL is based on a simple hierarchy (such as in taxonomy) where each child has a uniq parent. The table which stores the trait ontology is defined by the following fields:

     Term_id   Term_name   Parent_id   Synonyms   Definition
     1       my_ontology
     2       yield                   1
     3       dry_grain_yield_ear     2
     4       dry_grain_yield         2
     5       grain_yield             2
     6       kernel_weight_per_ear   2