PHB — Asparagus officinalis

Summary

A4U43_C07F34600, designated AoPHB, encodes a homeodomain-leucine zipper (HD-Zip III) transcription factor containing a START lipid-binding domain and a MEKHLA domain. The gene is associated with specification of plant organ axis polarity, determination of bilateral symmetry, meristem initiation and maintenance, adaxial/abaxial axis specification, leaf shaping and vascular tissue pattern formation, embryonic pattern specification, and response to auxin and cytokinin. AoPHB has been linked to numerous traits including leaf, petal, stamen, anther, gynoecium, and cotyledon morphology, floral organ identity, meristem identity, root length and thickness, seed maturation, vegetative growth time, and sensitivity to auxin, cytokinin, brassinosteroids, and jasmonic acid. It is also associated with high temperature stress response. The protein localizes to both the nucleus and cytosol.

Annotations

Chromosome
7
Related genes
PHB, DRN, BIM1, BOL, PHV, ZPR3
GO terms
Lipid Binding, Meristem Initiation, Adaxial/abaxial Pattern Specification, Specification Of Plant Organ Axis Polarity, Cotyledon Development, Embryonic Pattern Specification, Transcription Cis-regulatory Region Binding, regulation of meristem size
Publications
17122409, 16880009, 11549757, 23011125, 34209960, 12514099, 24377444, 20219281
Traits
phosphate allocation, heat stress tolerance, organ initiation, salt stress response, de novo root organogenesis, somatic embryogenesis, plant development, shoot regeneration