VP1 — Triticum aestivum

Summary

TRAESCS3D02G412800 (VP1, also known as TaABI3-3D) on wheat chromosome 3D encodes a B3 DNA-binding domain-containing protein of the LEC2-like family. The encoded protein exhibits sequence-specific DNA binding, transcription coactivator activity, and phytochrome binding, and is associated with protein complex and Hsp90 binding. VP1 is associated with positive regulation of seed maturation, pre-harvest sprouting, cellular response to gibberellin stimulus, and regulation of triglyceride catabolic process. It is linked to grain dormancy, sprouting tolerance, abscisic acid content, starch concentration, seedling vigor, winter survival, and water stress response traits. The gene is also associated with seed storage protein expression, endosperm development, and lateral root formation. Studies of related genes in other species link the family to seed longevity, abscisic acid responsiveness, oil accumulation, and iron distribution in seed.