Pangenome insights into structural variation and functional diversification of barley CCT motif genes
Authors: Zhu, Z., Stein, N.
Date: 2025-03-19 · Version: 1
DOI: 10.1101/2025.03.19.643958 Category: Plant Biology
Model Organism: Hordeum vulgare
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Using a barley pangenome of 76 genotypes and a pan‑transcriptome subset of 20, the study characterizes the diversity and evolutionary dynamics of CCT motif genes, uncovering novel frameshift variants and clade‑specific domain expansions. Phylogenetic and tissue‑specific expression analyses reveal functional divergence among paralogs, and the unexpected retention of the VRN2 repressor in spring barley suggests additional regulatory mechanisms beyond vernalization.
CCT motif genes barley pangenome gene family diversification VRN2 floral repressor phylogenetic analysis