(Apr 24, 2025): A sum of 3,390 new QTL/associations have been curated into the database. (New additions less obsolete/retracted ones: Cattle: 1,117; Chicken: 672; Goat: 244; Horse: 257; Pig: 426; Sheep: 674; Rainbow trout: 0 -- Net increase: 3,390). To date, the current total number of QTL in the database: 292,423 [Breakdown by species -- Cattle: 193,453 (on 558 traits); Chicken: 29,116 (on 246 traits); Goat: 2,713 (on 90 traits); Horse: 2,482 (on 71 traits); Pig: 57,041 (on 406 traits); Sheep: 5,417 (on 178 traits); Rainbow trout: 2,201 (on 35 traits)] curated from 2,964 publications.

In addition, updates have been made to 853 QTL/associations, 82 base traits and 3,771 trait variants on data curated prior to Release 55 (December 2024).

( This is a joint release with the 24th CorrDB release.)

Database developments notes:
(1) Multiple Genome Support: All currently released data in all 7 species are lifted to 22 genome assemblies aided by SNP mappings from new (April 2, 2025) dbSNP Release 7 data (direct dbSNP mapping data for 19 genomes, and our in-house procedures extended the mappings for additoinal 3 genomes). (2) JBrowse2 was introduced a year ago (April 2024; QTLdb Release 53) and now has been made the default QTL/association map viewer on respective "default genomes" (one per species is supported). The older JBrowse (version 1) is completely retired from this site as of this release. Links to using JBrowse2 for QTL/associations are listed on each QTLdb species homepage.

For most recent updates, please refer to What's New page on this site for related items.