Sex-specific cell division during development of unisexual flowers in the dioecious plant Silene latifolia

被引：18

作者：

Matsunaga, S ^{[1
]}

Uchida, W ^{[1
]}

Kawano, S ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Frontier Sci, Dept Integrated Biosci, Kashiwa, Chiba 2778562, Japan

来源：

PLANT AND CELL PHYSIOLOGY | 2004年 / 45卷 / 06期

基金：

日本学术振兴会;

关键词：

cell division; dioecious plant; flower meristem; sex chromosome; sex development; unisexual flower;

D O I：

10.1093/pcp/pch081

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

We analyzed cell division patterns during the differentiation of unisexual flowers of the dioecious plant Silene latifolia using in situ hybridization with histone H4 and cyclin A1 genes. The gene expression patterns indicated that the activation of cell divisions in whorls 3 and 4 was reversed in young male and female flower buds. During maturation of flower buds, a remarkable reduction in cell division activity occurred in the male gynoecium primordium and female stamen primordia. Our analyses showed that differential activation and reduction of cell division strongly correlated with sex-specific promotion and cessation in the sex differentiation of unisexual flowers.

引用

页码：795 / 802

页数：8

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