AP1 — Glycine max

Summary

GmAP1 (GLYMA_16G091300V4) on soybean chromosome 16 encodes a MADS-box transcription factor with RNA polymerase II-specific DNA-binding activity, also annotated with chromatin-binding, transcription coactivator and corepressor activities, and histone-binding functions. The gene is associated with floral whorl development, regulation of double fertilization, release of seed from dormancy, and miRNA processing. It has been linked to numerous agronomic traits including legume fruit shattering, fruit yield, seed color, floral organ size and number, leaf morphology, stem thickness, net photosynthetic rate, and the vegetative-to-reproductive phase transition. Additional associations include fruit development, floral meristem identity, inflorescence determinacy, pod shatter, and carpel valve identity. Studies of related genes in other species link the family to petal and stamen identity, seed yield, temperature-responsive flowering, and proanthocyanidin accumulation.