TTG — Cucumis sativus

Summary

CsTTG1 (CSA_4G097650) encodes a WD40-repeat protein belonging to the DCAF7-like family, annotated with DNA-binding transcription factor activity, protein kinase activity, and protein folding chaperone functions. In cucumber, CsTTG1 is associated with the regulation of trichome morphogenesis and spacing, epidermal cell fate specification, root hair differentiation, proanthocyanidin and anthocyanin biosynthesis, and brassinosteroid signalling inhibition. The gene is linked to numerous agronomic traits including leaf trichome density, root hair length, seed colour and size, fruit quality, anthocyanin content, iron concentration, transpiration rate, and responses to high temperature, biotic stress, and insect damage. CsTTG1 localises to the nucleus, cytosol, plasmalemma, vacuole, and plasmodesmata. Studies of related genes in other species connect the family to seed coat development, mucilage production, root hair patterning, and anthocyanin pigmentation.