Claim · model-written summary
The authors propose AhTGA1 as a molecular target for peanut seedling breeding aiming at moderate hypocotyl length.
- Taxon
- peanut
Arachis hypogaeae0 - Outcome
- moderate hypocotyl lengthe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“offering molecular targets for next precision peanut seedlings breeding with moderate hypocotyl length”
Title
Weicai Jin; Hao Liu; Muhammad J Umer; et al. Journal of Integrative Agriculture 2026. doi:10.1016/j.jia.2026.04.001
Other claims from this paper (9)
- Method / resource A single-nucleus transcriptome atlas of peanut hypocotyls was built from nearly 29,915 nuclei and identified six major cell types.
- Observation Pseudotemporal analysis showed a hierarchical differentiation path from progenitor primordium cells to specialized stele cells in the peanut hypocotyl.
- Observation Integrating the atlas with bulk RNA-seq identified 93 core differentially expressed genes in peanut hypocotyl.
- Observation Among the core DEGs, 21 transcription factors were enriched in phloem and cambium cells.
- Observation Coexpression network analysis revealed functional modules associated with photosynthesis and fatty acid metabolism.
- Observation A GWAS of hypocotyl length in a diverse peanut panel pinpointed a key locus on chromosome B03 containing the bZIP transcription factor gene AhTGA1.
- Association Peanut accessions with high AhTGA1 expression, such as R169, had significantly longer hypocotyls than accessions with lower AhTGA1 expression.
- Intervention effect Overexpression of AhTGA1 in Arabidopsis promoted faster hypocotyl elongation than in wild-type.
- Mechanism The authors attribute the faster hypocotyl elongation caused by AhTGA1 overexpression in Arabidopsis to activation of the auxin pathway.