AXR5 — Asparagus officinalis

Summary

A4U43_C03F5820 (AXR5, AoAXR5) on asparagus chromosome 3 encodes an AUX/IAA family protein with domains including AUX_IAA and PB1-like, and is annotated with auxin receptor activity, auxin binding, transcription corepressor activity, and sequence-specific DNA binding. It is associated with inflorescence phyllotactic patterning, sepal and petal development, inflorescence meristem growth, and longitudinal axis specification, as well as responses to carbohydrates, red light, and hydrogen peroxide. The gene is linked to traits including biomass yield, photosynthetic ability, leaf angle, root phototropism, photoperiod-sensitive flowering, and glyphosate sensitivity. Studies of related genes in other species connect the family to auxin resistance, lateral root initiation, shoot regeneration, and vascular tissue development.