The FLX Gene of Arabidopsis is required for FRI-dependent activation of FLC expression

被引：24

作者：

Andersson, Carol R. ^{[1
]}

Helliwell, Chris A. ^{[1
]}

Bagnall, David J. ^{[1
]}

Hughes, Trijntje P. ^{[1
]}

Finnegan, E. Jean ^{[1
]}

Peacock, W. James ^{[1
]}

Dennis, Elizabeth S. ^{[1
]}

机构：

[1] CSIRO Plant Ind, Canberra, ACT 2601, Australia

来源：

PLANT AND CELL PHYSIOLOGY | 2008年 / 49卷 / 02期

关键词：

Arabidopsis; FLC activator; flowering time; FLX gene; FRI pathway; MADS AFFECTING FLOWERING;

D O I：

10.1093/pcp/pcm176

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The Arabidopsis FLOWERING LOCUS C (FLC) gene encodes a MADS box protein that acts as a dose-dependent repressor of flowering. Mutants and ecotypes with elevated expression of FLC are late flowering and vernalization responsive. In this study we describe an early flowering mutant in the C24 ecotype, flc expressor (flx), that has reduced expression of FLC. FLX encodes a protein of unknown function with putative leucine zipper domains. FLX is required for FRIGIDA (FRI)-mediated activation of FLC but not for activation of FLC in autonomous pathway mutants. FLX is also required for expression of the FLC paralogs MADS AFFECTING FLOWERING 1 (MAF1) and MAF2.

引用

收藏

页码：191 / 200

页数：10

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