(Aug 24, 2022): New data updates made to previously curated QTL/association data: 254,573 [Breakdown by species -- cattle: 195,041; chicken: 16,613; goat: 129; horse: 2,699; pig: 34,793; rainbow trout: 1,225; sheep: 4,202]. These changes related to previously curated traits: 2,111 [Breakdown by species -- cattle: 683; chicken: 369; horse: 65; pig: 691; sheep: 264; rainbow trout: 39].

In addition, a sum of 981 new QTL/associations have been curated into the database. (New additions less obsolete/retracted ones: Catfish: 0; Cattle: 291; Chicken: 19; Goat: 0; Horse: 0; Pig: 462; Sheep: 209; Rainbow trout: 0 -- Net increase: 981). To date, the current total number of QTL in the database: 254,311 [Breakdown by species -- Cattle: 193,216 (on 684 traits); Chicken: 16,656 (on 370 traits); Goat: 128 (on 25 traits); Horse: 2,636 (on 65 traits); Pig: 35,846 (on 693 traits); Sheep: 4,416 (on 266 traits); Rainbow trout: 1,413 (on 43 traits)]
( This is a joint release with the 16th CorrDB release.)

Database developments summary:
(1) The data released above with regard to curation updates reflects our continued efforts toward implementing a new trait variant management system (reported in our 2022 WCGALP paper), as our work this summer has been focused on extensive data curation changes on all existing data in the QTLdb and CorrDB. The trait curation changes provide supporting evidence that the new data management structural change implemented in the spring works as designed (see our database release 47). A positive effect from the new trait data management in QTLdb/CorrDB is a significant reduction in the number of traits maintained in the database (for correlation data, from 902 to 786, -12.9%; for heritability data, from 1,061 to 928, -14.9%; for QTL/association data, from 2,272 to 2,146, -5.9%). Overall, this is an approximate 10% reduction in total base trait numbers. (2) Default genome: Since the Animal QTLdb has been supporting multiple genome builds since 2021 for a species, one genome assembly per species is now selected as default "reference" genome for the QTLdb web tools search and online map display. The selection of the default genome is in alignment with NCBI/Ensembl updates. The supported "default genome" information can be found on "Supported Genome Assemblies for Data Alignments" page on our website.

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