Scientists map sesame's internal drought survival toolkit
Panda S, Rout GR, Pasupuleti J, Panigrahi LL
Crop Improvement
The oil in your kitchen pantry likely traces back to sesame fields where water scarcity already cuts yields, and this roadmap of the plant's stress-response genes could keep that supply chain stable as droughts worsen.
Sesame is an ancient oilseed crop that struggles when water gets scarce, especially late in the growing season. Researchers pulled together everything known about the genes, proteins, and chemical signals sesame uses to cope with dry spells, including stress-hormone pathways and protective molecules that shield the plant's cells. The goal is to give plant breeders a clearer target list so they can use tools like CRISPR to develop sesame varieties that hold up better under drought.
Key Findings
Key drought-response regulators identified include NAC, MYB, and WRKY transcription factor families along with protective proteins like LEA and heat shock proteins
Three hormone signaling modules were linked to drought adaptation: ABA (via PYL-SnRK2-ABF), jasmonate (via LOX/AOS/OPR), and ethylene (via EIN/ERF)
KEGG pathway analysis connects ABA signaling, phenylpropanoid metabolism, and antioxidant pathways as integrated drought-adaptation networks, suggesting targets for CRISPR-based breeding
chevron_right Technical Summary
Scientists reviewed decades of gene, protein, and metabolite research on sesame to map exactly how the plant senses and survives drought, pointing breeders toward specific genes and pathways that could produce more drought-tough sesame crops.
Abstract Preview
Original paper
Mechanistic and omics based integrative approaches reveal genetic and molecular basis of drought resilience in sesame (Sesamum indicum L.).
Sesame (Sesamum indicum L.), is one of the earliest domesticated oilseed crops. It is valued for its exceptional oil content, bioactive compounds, and adaptability to diverse agroclimatic condition...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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