Analysis Methods
Integrated Trait–Gene Analysis Methods
Understand what TWAS, SMR, colocalization, and EWAS test and how PlantQTLdb filters their results.
Methods and reported support
- TWAS · FUSION
- Tests genetically predicted expression, splicing, or APA usage against a trait. Available enet, lasso, and top1 models are evaluated; displayed results pass the configured Bonferroni rule.
- SMR and HEIDI
- Tests evidence compatible with a shared genetic effect, while HEIDI provides a separate heterogeneity assessment. Pleiotropy and linkage remain possible explanations.
- Colocalization
- Reports posterior probabilities PP.H0–PP.H4. PlantQTLdb displays shared-signal support at PP.H4 ≥ 0.5.
- EWAS · MOMENT
- Tests measured molecular feature–trait association under the configured genetic background model. Displayed results use P ≤ 1 × 10⁻³ and pass result-level quality rules.
Interpretation limits
These methods answer related but non-identical questions. Their results should be compared within the same dataset, trait, and molecular layer and interpreted together with locus structure and biological knowledge.