HSD1 — Beta vulgaris subsp. vulgaris

Summary

BvHSD1 (BVRB_9G220310) on sugar beet chromosome 9 encodes a 3-beta-hydroxysteroid dehydrogenase/decarboxylase with NAD⁺-dependent oxidoreductase activity, also annotated as a cinnamoyl-CoA reductase. The protein contains a 3-beta-hydroxysteroid dehydrogenase/esterase domain and a reticulon-like domain, and localises to the endoplasmic reticulum, membrane and cytoplasm. This gene is associated with steroidogenesis, lignin and phenylpropanoid anabolism, plant organ development, and response to aldosterone, keratinocyte proliferation and inflammatory response. Phenotypic associations include plant height, leaf morphology, stem length, inflorescence internode elongation, auxin transport and gravitropism. Studies of related genes in other species link the family to inflorescence length, fruit shape and size, and leaf morphology traits.