ABI3 — Pisum sativum

Summary

PSAT3G142040 (symbol ABI3, also known as SIS10) on garden pea chromosome 3LG5 encodes a B3 DNA-binding domain protein of the LEC2-like family. The product exhibits transcription coactivator activity, sequence-specific DNA binding, and phytochrome binding, and is associated with Hsp90 binding and ubiquitin-protein transferase activity. ABI3 is linked to positive regulation of seed maturation, exit from dormancy, cellular response to gibberellin stimulus, and regulation of triglyceride catabolic process. It has been connected to numerous agronomic traits including yield, seed set percent, seedling vigor, vegetative vigor, photoperiod-sensitive flowering time, water stress response, iron content, cadmium concentration, and aphid response. Studies of related genes in other species link the family to seed development, desiccation tolerance, seed longevity, abscisic acid responsiveness, and oil accumulation.