VIT1 — triticum aestivum

Summary

TRAESCS5D02G209900 (TaVIT1, also known as TaVIT2) on wheat chromosome 5D encodes a Ccc1_fam domain protein with iron ion sequestering activity, manganese ion transmembrane transporter activity, iron channel activity, and DNA binding transcription factor activity. The gene is associated with cellular and multicellular iron and manganese ion homeostasis, iron transport, vacuolar membrane localisation, and nuclear localisation. TaVIT1 is associated with grain weight, heading time, plant height, flag leaf angle, photosynthetic rate, seed growth and development, and wheat stripe rust disease response. It is also linked to floral meristem identity, flower and inflorescence development traits, and photoperiod-sensitive flowering. Studies of related genes in other species link the family to vacuolar iron storage and distribution in seeds, and to seed iron and zinc concentrations and grain yield.