Claim · model-written summary
Simultaneous knockout of GmJMJ19/20 significantly delays flowering time in soybean.
- Taxon
- Glycine max
Glycine maxt0 - Treatment
- simultaneous knockout of GmJMJ19/20e1
- Gene
- GmJMJ19/20e1
- Outcome
- flowering timee1
- Direction
- delayse1
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Glycine max”
e1“The simultaneous knockout of GmJMJ19/20 significantly delays flowering time”
Title
Yapeng Han; Qian Jia; Mengshi Liu; et al. Nucleic Acids Research 2026. doi:10.1093/nar/gkag134
Other claims from this paper (8)
- Observation GmJMJ19 and GmJMJ20, encoding JmjC domain-containing proteins, were identified in soybean.
- Observation GmJMJ19 and GmJMJ20 exhibit circadian rhythmic expression patterns.
- Observation GmJMJ19 and GmJMJ20 interact with LUX ARRHYTHMO 2 (GmLUX2) both in vitro and in vivo.
- Observation GmJMJ19/20 bind to histones but lack conventional histone demethylase activity.
- Observation GmJMJ19/20 function as endopeptidases that specifically cleave histone H3 peptides at unmethylated lysine 27, independent of Fe2+ and alpha-ketoglutarate.
- Observation Structural modeling supports occlusion of the catalytic pocket, which prevents access to methylated substrates.
- Mechanism Transcriptomic analyses reveal that the GmJM19/20-GmLUX2 module enhances GmFULc expression independently of the canonical evening complex.
- Observation Haplotype analysis suggests GmJMJ19 underwent selection during domestication, potentially contributing to soybean geographical adaptation.