HUA2 is required for the expression of floral repressors in Arabidopsis thaliana

被引：72

作者：

Doyle, MR

Bizzell, CM

Keller, MR

Michaels, SD

Song, JD

Noh, YS

Amasino, RM ^{[1
]}

机构：

[1] Univ Wisconsin, Coll Agr & Life Sci, Dept Biochem, Madison, WI 53706 USA

[2] Kumho Life & Environm Sci Lab, Kwangju 500712, South Korea

[3] Gyeongsang Natl Univ, Environm Biotechnol Natl Core Res Ctr, Jinju 660701, South Korea

来源：

PLANT JOURNAL | 2005年 / 41卷 / 03期

关键词：

Arabidopsis; HUA2; FLC; flowering; natural variation;

D O I：

10.1111/j.1365-313X.2004.02300.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

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 ).

引用

页码：376 / 385

页数：10

共 47 条

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