HOMEOBOX GENES IN THE FUNCTIONING OF PLANT MERISTEMS

被引：43

作者：

HAKE, S ^{[1
]}

CHAR, BR ^{[1
]}

CHUCK, G ^{[1
]}

FOSTER, T ^{[1
]}

LONG, J ^{[1
]}

JACKSON, D ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY, DEPT PLANT BIOL, BERKELEY, CA 94720 USA

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 1995年 / 350卷 / 1331期

关键词：

D O I：

10.1098/rstb.1995.0136

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The maize homeobox gene knotted1 (kn1) is expressed in vegetative and floral meristems and is downregulated at the site of primordia formation. kn1-related genes from maize and other species also show meristem-specific expression and offer additional tools for studying the activities of shoot meristems. Members of this gene family are expressed early in embryogenesis, providing molecular markers for meristem initiation. Ectopic expression of either kn1 or a related Arabidopsis gene, KNAT1, causes dramatic alterations in Arabidopsis and tobacco leaf morphology. Most significantly, meristems form on the leaf producing small shoots. We discuss whether the phenotypes can be interpreted as changes in positional information or timing of determination.

引用

页码：45 / 51

页数：7

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