PIN1 — Brassica napus

Summary

BnPIN1 (DARMORV10_C06P33970.1) on chromosome C06 of oilseed rape encodes an auxin efflux carrier of the PIN-like family, with annotated molecular functions including auxin efflux transmembrane transporter activity, inositol-1,4-bisphosphate 1-phosphatase activity, and binding to various phosphatidylinositol phosphates and clathrin. The gene is associated with diverse biological processes such as root regeneration, anthocyanin accumulation in response to UV light, stigma development, regulation of cell polarization, and detection of oxidative stress. It localizes to the auxin efflux carrier complex, recycling endosome, and basal plasma membrane. Traits linked to BnPIN1 include gravity response, phototropism, branch angle, seed set percent, lateral root number, leaf vein morphology, and sensitivity to brassinosteroids, ethylene, and herbicides. Studies of related genes in other species connect the family to polar auxin transport, leaf vascular patterning, phototropism, and root meristem growth.