TY - JOUR AU - AB - Downloaded from genesdev.cshlp.org on November 4, 2021 - Published by Cold Spring Harbor Laboratory Press The AGAMOUS-LIKE 20 MADS domain protein integrates floral inductive pathways in Arabidopsis 1 1 1 1 2 1 Horim Lee, Sung-Suk Suh, Eunsook Park, Euna Cho, Ji Hoon Ahn, Sang-Gu Kim, 1 1 1,3 Jong Seob Lee, Young Myung Kwon, and Ilha Lee School of Biological Sciences and Research Center for Cell Differentiation, Seoul National University, Seoul, 151-742, Korea; Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037, USA The very late-flowering behavior of Arabidopsis winter-annual ecotypes is conferred mainly by two genes, FRIGIDA (FRI) and FLOWERING LOCUS C (FLC). A MADS-domain gene, AGAMOUS-LIKE 20 (AGL20), was identified as a dominant FRI suppressor in activation tagging mutagenesis. Overexpression of AGL20 suppresses not only the late flowering of plants that have functional FRI and FLC alleles but also the delayed phase transitions during the vegetative stages of plant development. Interestingly, AGL20 expression is positively regulated not only by the redundant vernalization and autonomous pathways of flowering but also by the photoperiod pathway. Our results indicate that AGL20 is an important integrator of three pathways controlling flowering in Arabidopsis. [Key Words: Flowering; TI - The AGAMOUS-LIKE 20 MADS domain protein integrates floral inductive pathways in Arabidopsis JF - Genes & Development DO - 10.1101/gad.813600 DA - 2000-09-15 UR - https://www.deepdyve.com/lp/unpaywall/the-agamous-like-20-mads-domain-protein-integrates-floral-inductive-Dh6OPwAmbX DP - DeepDyve ER -