The study investigates the Arabidopsis ribosomal protein RPS6A and its role in auxin‑related root growth, revealing that rps6a mutants display shortened primary roots, fewer lateral roots, and defective vasculature that are not rescued by exogenous auxin. Cell biological observations and global transcriptome profiling show weakened auxin signaling and reduced levels of PIN auxin transporters in the mutant, indicating a non‑canonical function of the ribosomal subunit in auxin pathways.

The study links circadian rhythm traits in Arabidopsis seedlings to flowering time synchronization across latitudes by mapping QTLs in recombinant inbred lines derived from African and European lineages. Two QTLs containing KH-domain RNA‑binding proteins (KH17, KH29) affect splicing of key flowering regulators (MAF2, MAF3), creating chimeric transcripts that may accelerate proteome evolution and decouple mean flowering time from its synchronization, offering a predictive tool for breeding climate‑resilient crops.