Release 59
(Apr 20, 2026)

Chicken QTLdb data summary
As of Apr 20, 2026, there have been 30,465 QTL / eQTL / associations released for public access on the Chicken QTLdb. These data were curated from 423 publications and represent 244 base traits, 283 trait variants, and 40 eQTL genes.
Data summary selector:
  1. Data by Traits
  2. Experiments by Traits
  3. Data by Trait Variants
  4. Experiments by Trait Variants
  5. Data by Trait Types
  6. Data by Trait Classes
  7. Genome assemblies supported
  8. Data by Chromosomes
  9. Data by Marker Types
  10. Data by Publishing Journals
  11. Data by Years Published
  12. Data Sources by Years Published
  13. Data in Curation Pipeline
  14. Types of structural genome information aligned against the QTL/association maps

Trait classes with the most curated data

Trait classes
Number of QTL
Production24,969
Exterior3,895
Health768
Reproduction479
Physiology141
✻ Trait classes / types / base traits : are trait livestock trait hierarchies used in our trait ontology management system. See FAQ - Terminologies for how they are defined, or lick on a trait class to see what they are.
NOTE: On this site, the term "QTL" may have collectively included quantitative loci, SNP associations, and eQTL data.

 

© 2003-2026: USA · USDA · NRPSP8 · Program to Accelerate Animal Genomics Applications. Contact: Bioinformatics Team