Sorghum seed coat color correlates with the accumulation of phenolic and volatile compounds, and key regulatory genes including ABCB28, PTCD1, and ANK have been identified as central to their biosynthesis and transport.
Ding et al. identified SbC1, an R2R3-MYB transcription factor, as a key regulator of anthocyanin biosynthesis in sorghum coleoptiles, highlighting its role in pigmentation, stress tolerance, and potential applications in crop improvement.
Though the diversity of native crop varieties (landraces) may be useful for increasing food security under novel environmental conditions, in the scenario of a soot-producing catastrophe, local genetic diversity is insufficient to ensure agricultural resilience without long-distance genotype substitutions or crop shifts.
ABA seed priming enhances drought tolerance in sorghum by modulating hormonal pathways and activating key transcription factors like SbNAC21-1, enabling improved stress resilience without compromising growth.
Rodríguez et al. identified and validated the qDOR-9 locus in sorghum as a key regulator of seed dormancy, linking it to ABA sensitivity and flowering time, and highlighting its unintended association with PHS susceptibility due to historical breeding for dwarfism.
The Center for Sorghum Improvement (CSI) will host a virtual seminar given by Brent Crafton, Lanier Dabruzzi, Shelee Padgett and Zach Simon, members of the Sorghum Checkoff Marketing Team, on Tuesday, January 13 at 11:00 AM CT. Their talk, “Moving
Salt tolerance in sorghum is closely linked to hormone-regulated sugar transporter expression that controls resource allocation between roots, stems, and grains during development, enabling stress-resilient genotypes like Della to delay sodium translocation and sustain metabolic balance.
Ao et al. identified a BPM domain-containing gene on chromosome 10 as a key regulator of panicle exsertion in sorghum, linking impaired BR signaling and reduced parenchyma cell elongation to a sheathed panicle phenotype, with implications for breeding varieties suited for mechanized harvesting.
