The AGAMOUS-LIKE 20 MADS domain protein integrates floral inductive pathways in Arabidopsis

被引：583

作者：

Lee, H

Suh, SS

Park, E

Cho, E

Ahn, JH

Kim, SG

Lee, JS ^{[1
]}

Kwon, YM

Lee, I

机构：

[1] Seoul Natl Univ, Sch Biol Sci, Seoul 151742, South Korea

[2] Seoul Natl Univ, Res Ctr Cell Differentiat, Seoul 151742, South Korea

[3] Salk Inst Biol Studies, Plant Biol Lab, La Jolla, CA 92037 USA

来源：

GENES & DEVELOPMENT | 2000年 / 14卷 / 18期

关键词：

flowering; MADS domain protein; AGL20; phase transition; activation tagging;

D O I：

10.1101/gad.813600

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

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.

引用

页码：2366 / 2376

页数：11

共 49 条

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