HAN — Lactuca sativa

Summary

LsHAN, also known as LsGATA20, encodes a GATA-type zinc-finger transcription factor with DNA-binding transcription activator activity, miRNA binding, and translation initiation factor activity. It is localized to the nucleus, cytoplasm, and plastid. In garden lettuce, LsHAN is associated with the regulation of shoot apical meristem development, abaxial cell fate specification, floral organ identity specification, carpel and stamen development, and the timing of the vegetative-to-reproductive phase transition. It is linked to responses to cytokinin and nitrogen compounds, as well as chloroplast organization. Associations with traits include leaf morphology and size, floral organ morphology, petal length and number, shoot meristem development, fruit growth, and disease tolerance. Studies of related genes in other species connect the family to bract development, fruit valve formation, and Fusarium wilt resistance.