Activation of a floral homeotic gene in Arabidopsis

被引：302

作者：

Busch, MA ^{[1
]}

Bomblies, K ^{[1
]}

Weigel, D ^{[1
]}

机构：

[1] Salk Inst Biol Studies, La Jolla, CA 92037 USA

来源：

SCIENCE | 1999年 / 285卷 / 5427期

关键词：

D O I：

10.1126/science.285.5427.585

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The patterned expression of floral homeotic genes in Arabidopsis depends on the earlier action of meristem-identity genes such as LEAFY, which encodes a transcription factor that determines whether a meristem will generate flowers instead of Leaves and shoots. The LEAFY protein, which is expressed throughout the flower, participates in the activation of homeotic genes, which are expressed in specific regions of the flower. Analysis of a LEAFY-responsive enhancer in the homeotic gene AGAMOUS indicates that direct interaction of LEAFY with this enhancer is required for its activity in plants. Thus, LEAFY is a direct upstream regulator of floral homeotic genes.

引用

页码：585 / 587

页数：3

共 36 条

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