Bolting and flowering control in sugar beet : relationships and effects of gibberellin, the bolting gene B and vernalization
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Author
Mutasa-Gottgens, Euphemia
Qi, Aiming
Zhang, Wenying
Schulze-Buxloh, Gretel
Jennings, Andrea
Hohmann, Uwe
Müller, Andreas E
Hedden, Peter
Attention
2299/12784
Abstract
Bolting, the first visible sign of reproductive transition in beets (Beta vulgaris), is controlled by the dominant bolting gene B (B allele), which allows for flowering under long days (LDs, >14 h light) without prior vernalization. The B-locus carries recessive alleles (bb) in sugar beet (Beta vulgaris L. spp. vulgaris), so that vernalization and LDs are required for bolting and flowering. Gibberellin growth hormones (GAs) control stem elongation and reproductive development, but their role during these processes in sugar beet is not defined. We aimed to investigate the involvement of GAs in bolting and flowering in sugar beet, and also its relationship with the vernalization requirement as defined by the B-gene.