title: HUA2 is required for the expression of floral repressors in Arabidopsis thaliana.
abstract: The HUA2 gene acts as a repressor of floral transition. Lesions in hua2 were identified through a study of natural variation and through two mutant screens. An allele of HUA2 from Landsberg erecta (Ler) contains a premature stop codon and acts as an enhancer of early flowering 4 (elf4) mutants. hua2 single mutants, in the absence of the elf4 lesion, flower earlier than wild type under short days. hua2 mutations partially suppress late flowering in FRIGIDA (FRI )-containing lines, autonomous pathway mutants, and a photoperiod pathway mutant. hua2 mutations suppress late flowering by reducing the expression of several MADS genes that act as floral repressors including FLOWERING LOCUS C (FLC ) and FLOWERING LOCUS M (FLM ).
authors.affiliation: Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison, WI 53706-1544, USA.
authors.forename: Mark R
authors.initials: MR
authors.lastname: Doyle
authors.forename: Colleen M
authors.initials: CM
authors.lastname: Bizzell
authors.forename: Melissa R
authors.initials: MR
authors.lastname: Keller
authors.forename: Scott D
authors.initials: SD
authors.lastname: Michaels
authors.forename: Judong
authors.initials: J
authors.lastname: Song
authors.forename: Yoo-Sun
authors.initials: YS
authors.lastname: Noh
authors.forename: Richard M
authors.initials: RM
authors.lastname: Amasino
mesh_terms: D017360:Arabidopsis / Q000235:genetics* / Q000254:growth & development*; D029681:Arabidopsis Proteins / Q000235:genetics*; D035264:Flowers / Q000254:growth & development*; D018507:Gene Expression Regulation, Developmental / Q000502:physiology*; D018506:Gene Expression Regulation, Plant / Q000502:physiology*; D005801:Genes, Homeobox; D014644:Genetic Variation; D005838:Genotype; D009154:Mutation; D010641:Phenotype; D017440:Photoperiod; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D029681:Arabidopsis Proteins; C118465:HUA2 protein, Arabidopsis; D014157:Transcription Factors