ABI5 — Pisum sativum

Summary

PSAT5G257120 (ABI5, also known as PsDPBF2 or PsBZIP67) on garden pea chromosome 5LG3 encodes a bZIP transcription factor with DNA-binding, transcription coactivator, and protein phosphatase activities. This gene is associated with the regulation of seed dormancy, exit from dormancy, and gibberellic acid homeostasis, as well as upregulation and downregulation of both abscisic acid and gibberellic acid-mediated signaling pathways. It has been linked to numerous agronomic traits including seed set percent, seed longevity, seed maturation, pollen fertility, plant male sterility, shoot system elongation, vegetative growth time, transpiration rate, stomatal closure, leaf size, anthocyanin content, and responses to salinity, osmotic stress, low temperature, and nitrate sensitivity. The gene localizes to the nucleus, cytoplasm, and mitochondria.