HAE — Brassica napus

Summary

BnHAE (HAE) on chromosome A09 of oilseed rape encodes a protein with multiple annotated molecular functions including cycloeucalenol cycloisomerase activity, ATP:sulfate adenylyltransferase activity, peptide hormone binding, ammonium channel activity, and transmembrane receptor protein tyrosine kinase activity. The protein contains RRM_NFXL1, Znf_NFX1, and Znf_PHD-finger domains. BnHAE is associated with embryonic meristem development, radial axis specification, secondary thickening, lateral root branching, phloem loading, and photosynthesis. It has been linked to traits including floral organ size, root number, sucrose and starch content, oleic acid content, plant male sterility, nitrate uptake, and cytokinin content. Localization evidence connects the gene to the thylakoid membrane, plastid stroma, endocytic vesicle, and pollen tube. Studies of related genes in other species link the family to vascular development, meristem function, organ abscission, and stress responses.