CBF1 — Solanum tuberosum

Summary

PGSC0003DMG400014310 (CBF1) on potato chromosome 3 encodes a DNA-binding transcription factor with an AP2/ERF domain and DRE1A-I family signature, also annotated with histone acetylase activity. The gene is associated with heat tolerance, cellular response to drought, response to freezing, and cellular salinity response. It is linked to regulation of leaf senescence, vegetative phase change, upregulation of chlorophyll breakdown, upregulation of wax anabolism, raffinose anabolism, and glucose-mediated signalling. Associations extend to subterranean shoot axis tuber size, net photosynthetic rate, transpiration rate, stomatal complex closure time, anthocyanin content, jasmonic acid content, and responses to nitrate, cytokinin, auxin, and brassinosteroids. The product localises to the nucleus and cytoplasm and is part of a histone acetylase complex. Studies of related genes in other species link the CBF family to frost tolerance, low-temperature tolerance, drought tolerance, and pathogen resistance.