AP1 — Sorghum bicolor

Summary

SORBI_3001G086500, designated SbAP1, encodes a MADS-box transcription factor containing a MADS-box and K-box domain. It is annotated with RNA polymerase II transcription regulatory region sequence-specific DNA binding and transcription corepressor activity. SbAP1 is associated with the regulation of the vegetative-to-reproductive phase transition, maintenance of inflorescence and floral meristem identity, fruit morphogenesis, and floral organ senescence. It is also linked to photoperiod-sensitive flowering time, days to flowering, inflorescence architecture, grain weight, heading date, panicle development, and drought tolerance. The gene is associated with abscission, auxin polar transport regulation, root meristem size, and responses to high temperature stress, UV-B light, and jasmonic acid content. Related genes in other species are linked to petal and sepal development, floral meristem identity, and inflorescence architecture.