RA2 — Zea mays

Summary

ZM00001EB123060 (RA2, also known as ZmRA2 or LBD6) on maize chromosome 3 encodes a DNA-binding transcription activator with protein homodimerization activity, localizing to the nucleus. This gene is associated with a wide range of developmental processes, including ear, inflorescence, floral organ, bract, pistil, and gametophyte development, as well as meristem determinacy and initiation, lateral and adventitious root formation, embryogenesis, and lateral growth. It is also linked to pigmentation, hypersensitivity, chromatin modeling, cytokinin signaling, hormone anabolism, and DNA replication. At the trait level, RA2 has been connected to agronomically important characteristics such as grain yield, grain number, grain weight, kernel number per row, ear length, tassel branch number and angle, spikelet density and fertility, plant height, anthesis time, heterosis, and floral organ length and number. Related genes in other species encode LOB domain-containing proteins.