Transcriptional repression distinguishes somatic from germ cell lineages in a plant

被引：35

作者：

Haerizadeh, Farzad ^{[1
]}

Singh, Mohan B. ^{[1
]}

Bhalla, Prem L. ^{[1
]}

机构：

[1] Univ Melbourne, Plant Mol Biol & Biotechnol Lab, Australian Res Council,Fac land & Food Resources, Ctr Excellence Integrat Legume Res, Parkville, Vic 3010, Australia

来源：

SCIENCE | 2006年 / 313卷 / 5786期

关键词：

D O I：

10.1126/science.1125526

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：

In flowering plants, the male germline begins with an asymmetric division, after which one of the resulting cells, the generative cell, divides symmetrically to produce two sperm cells. We show here that the male germline is initiated by transcriptional control. We identify GRSF, germline-restrictive silencing factor, from the lily. GRSF is ubiquitous in nongerm cells and is absent from male germ cells. GRSF recognizes silencer sequences in promoters of genes specific to the germline, stably repressing these genes in cells that are not destined to become germ cells.

引用

页码：496 / 499

页数：4

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