ABF1 (TRAESCS3B02G404300) — triticum aestivum

Summary

TRAESCS3B02G404300, designated TaABF1 (also known as TaABI5-1), encodes a bZIP transcription factor on wheat chromosome 3B. The protein possesses sequence-specific DNA binding and transcription cis-regulatory region binding activities, localises to the nucleus, and is associated with abscisic acid (ABA) signalling and metabolism, gibberellin biosynthesis, TOR signalling, and mRNA transcription. TaABF1 has been linked to pre-harvest sprouting, seed development, embryogenesis, seedling development, pollen maturation, and responses to salt and blue light. It is associated with sprouting tolerance, grain protein content, heading time, spike length, tiller number, grains per spike, seed and grain colour, coleoptile length, shoot and root dry weight, leaf chlorophyll content, net photosynthetic rate, osmotic adjustment capacity, and stem rust. Studies of related genes in other species associate the family with ABA sensitivity, seed dormancy, stomatal aperture, leaf senescence, and salt stress tolerance.