Integrated multi-omics and functional dissection of RING-type E3 ubiquitin ligases in flowering-time control in Setaria.

Identification of three RING-type E3 ligases, including SGD1, linked to flowering-time variation and yield traits in Setaria italica.

• Why it matters: Understanding flowering-time regulation is crucial for crop adaptation and yield stability, yet the role of RING-type E3 ligases in this process remains underexplored in plants.
• What they did: The study conducted an integrated multi-omics analysis, including genome identification, transcriptome profiling, and population genomics on 1433 accessions, to uncover candidate RING-type E3 ligases affecting flowering time.
• The result: Functional analyses showed SGD1 influences flowering time and grain yield by regulating SiSPL2 stability, with haplotype interactions suggesting potential for breeding strategies.