Multi-Level Characterization Reveals Divergent Heat Response Strategies Across Wheat Genotypes of Different Ploidy
Authors: Arenas-M, A., Mino, I., Uauy, C., Calderini, D. F., Canales, J.
Date: 2026-01-23 · Version: 1
DOI: 10.64898/2026.01.22.701169 Category: Plant Biology
Model Organism: Multi-species
▶ AI Summary
Field experiments combined with RNA sequencing revealed that wheat ploidy influences heat stress resilience, with tetraploid T. turgidum showing the smallest yield loss and hexaploid T. aestivum mounting the largest transcriptional response. Ploidy-dependent differences were observed in differential gene expression, alternative splicing—including hexaploid-specific exon skipping of NF‑YB—and co‑expression networks linked to grain traits, highlighting candidate pathways for breeding heat‑tolerant wheat.
heat stress wheat ploidy RNA sequencing differential gene expression alternative splicing