O-GlcNAc and phosphorylation modifications on HtL1/FBA10 regulate wheat vernalization for flowering.

ABSTRACT: Vernalization-regulated flowering is vital for wheat yield and geographical distribution, and the diversity of flowering time genes is essential for the breeding of climate-resilient varieties. Sugars have long been recognized in regulating flowering; however, the intrinsic connection between carbohydrate metabolism and vernalization response remains largely unexplored. Here, we identify a fructose 1,6-bisphosphate aldolase (FBA) encoding gene, HtL1/FBA10, as a modulator of heading time variation based on a genome-wide association study utilizing wheat core germplasm collections. Evolutionary analysis shows a decrease in the proportion of haplotype-2 of HtL1, which is linked to delayed flowering, in Chinese and American wheat varieties compared to landraces. Vernalization reduces HtL1/FBA1

SUBMITTER: Yang P 

PROVIDER: S-EPMC12848038 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature