A genetic framework for floral patterning

被引：408

作者：

Parcy, F ^{[1
]}

Nilsson, O ^{[1
]}

Busch, MA ^{[1
]}

Lee, I ^{[1
]}

Weigel, D ^{[1
]}

机构：

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

来源：

NATURE | 1998年 / 395卷 / 6702期

关键词：

D O I：

10.1038/26903

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 initial steps of newer development involve two classes of consecutively acting regulatory genes. Meristem-identity genes, which act early to control the initiation of flowers, are expressed throughout the incipient floral primordium. Homeotic genes, which act later to specify the identify of individual floral organs, are expressed in distinct domains within the flower. The link between the two classes of genes has remained unknown so far. Here we show that the meristem-identity gene LEAN has a role in controlling homeotic genes that is separable from its role in specifying floral fate. On the basis of our observation that LEAFY activates different homeotic genes through distinct mechanisms, we propose a genetic framework for the control of floral patterning.

引用

页码：561 / 566

页数：6

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