A bZIP transcription factor accelerates the transition to reproductive tuber growth and aging in Solanum tuberosum

• DOI: 10.1093/plphys/kiac182
• Publication Date: 2022-04-20T03:15:45Z
• Authors: Grace Alex Mason
• Keywords: Solanum tuberosum

Solanaceous plants, such as potato, tomato, and pepper, form key components of the global food supply.This is especially true for vegetative storage organs which are a source starch vitamin C. Solanum tuberosum, or domesticated falls under category plants known geophytes.Geophytes that organs, tubers, from modified stems stolons (reviewed in Khosa et al., 2021).Geophytes also employ two modes reproduction: sexual reproduction involving flowers through tubers.Switching between these fitness strategy allows geophytes to flourish harsh climates, mountainous South American Andes where potato was first cultivated.Typically, flowering process more appropriate long summer days.In contrast, tuberization reproductive better suited short winter days 2021).Genetic regulation complex but time genes play significant role developmental processes.Perhaps, best-known regulators transition growth members PHOSPHATIDYLETHANOLAMINE-BINDING PROTEIN gene family, most famous florigen FLOWERING LOCUS T (FT; reviewed 2021).In many expression FT regulated by photoperiod, with switch days.The perennial possesses homologs each master regulator either long-day-induced short-day-induced tuberization.The SELF-PRUNING 3D (StSP3D) promotes long-day conditions distinction tuberigen SELF- News Views