AP1C — Lactuca sativa

Summary

LsAP1C (AP1C) on chromosome 3 of garden lettuce encodes a MADS-box transcription factor containing MADS-box and K-box domains. It is associated with the regulation of developmental processes, including the maintenance of inflorescence and floral meristem identity, floral organ senescence, carpel development, and the timing of the vegetative-to-reproductive phase transition. The gene is linked to positive regulation of transcription by RNA polymerase II, regulation of transcription by RNA polymerase II, regulation of auxin polar transport, abscission, and regulation of root meristem size. Associations with traits include flower and inflorescence morphology, petal number, photoperiod-sensitive flowering time, days to flowering, photosynthetic rate, anthocyanin content, root length, and responses to UV light, high temperature, cytokinin, and brassinosteroids. The gene has also been connected to drought tolerance, cold tolerance, and leaf senescence.