AP2 — Nicotiana attenuata

Summary

A4A49_04523 (AP2) in coyote tobacco (Nicotiana attenuata) encodes a protein with an AP2/ERF domain, DNA-binding and transcription corepressor activities, and the ability to homodimerize and bind identical proteins. It is associated with the regulation of floral organ abscission, seed development, flower formation, and starch biosynthesis, as well as secondary metabolism including nicotine, cytokinin, isoflavonoid, and triterpenoid anabolism. The gene is linked to traits such as drought sensitivity, photosynthetic rate, chlorophyll content, leaf nitrogen content, sugar content, germination rate, and root morphology. It has been connected to floral organ identity, meristem determinacy, somatic embryogenesis, seed yield, and photoassimilate translocation. Related genes in other species link it to flower and seed development, ovule number, and Fusarium wilt resistance.