JAR1 — Nicotiana attenuata

Summary

A4A49_19048 (JAR1, also known as GH3.5, NaGH3.11, FIN219, NaJAR1) on coyote tobacco (Nicotiana attenuata) chromosome scaffold01075 encodes a GH3 family protein with IAA amido synthetase, JA-amino synthetase, and adenylyltransferase activities, and binds amino acids, AMP, and L-leucine. It is associated with jasmonic acid metabolism and signaling, cellular auxin homeostasis, anthocyanin metabolism, and regulation of defence response to bacteria. The gene is linked to herbivore defense and resistance, insect resistance, disease resistance (including to Fusarium graminearum), chilling tolerance, salt stress response, and traits such as grain yield, panicle number, flower diameter, leaf angle, photosynthetic ability, and photoperiod-sensitive flowering time. It localizes to the nucleus, cytoplasm, vacuole, and plasma membrane, and is associated with far red light sensitivity and red light sensitivity. Studies of related genes in other species link the family to jasmonoyl-isoleucine biosynthesis, pathogen defense, light signaling, and shade-induced hypocotyl elongation.