Activation tagging in plants: a tool for gene discovery

Activation tagging in plants: a tool for gene discovery
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植物中的激活标签:基因发现的工具

DOI:
10.1007/s10142-004-0112-3
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发表时间:
2004
影响因子:
2.9
通讯作者:
G. Loake
G. Loake
中科院分区:
生物学3区
文献类型:
--
作者:
Helen Tani;Xinwei Chen;P. Nurmberg;John J. Grant;M. Santamaria;Andrea Chini;Eleanor M. Gilroy;P. Birch;G. Loake

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旨在剖析遗传途径的经典功能丧失筛选的一个显着局限性是,它们很少发现功能冗余、通过替代代谢或调节回路补偿的基因,或者在早期胚胎或配子体发育中具有额外作用的基因。激活 T-DNA 标签是植物中出现的一种方法,可以帮助规避这些潜在问题。该技术利用包含四个串联拷贝的花椰菜花叶病毒 (CaMV) 35S 增强子序列的 T-DNA 序列。该元件增强了随机整合的 T-DNA 标签两侧邻近基因的表达,从而产生功能获得表型。激活标签已鉴定出拟南芥中许多对植物发育、代谢和抗病性至关重要的基因。本综述提供了这些发现的精选示例,以强调该技术的实用性。还讨论了其他模型植物系统的激活标签策略的最新发展以及用于生成条件等位基因的新的更复杂的载体的构建。这些最新进展极大地拓展了植物功能获得遗传学的视野。
A significant limitation of classical loss-of-function screens designed to dissect genetic pathways is that they rarely uncover genes that function redundantly, are compensated by alternative metabolic or regulatory circuits, or which have an additional role in early embryo or gametophyte development. Activation T-DNA tagging is one approach that has emerged in plants to help circumvent these potential problems. This technique utilises a T-DNA sequence that contains four tandem copies of the cauliflower mosaic virus (CaMV) 35S enhancer sequence. This element enhances the expression of neighbouring genes either side of the randomly integrated T-DNA tag, resulting in gain-of-function phenotypes. Activation tagging has identified a number of genes fundamental to plant development, metabolism and disease resistance in Arabidopsis. This review provides selected examples of these discoveries to highlight the utility of this technology. The recent development of activation tagging strategies for other model plant systems and the construction of new more sophisticated vectors for the generation of conditional alleles are also discussed. These recent advances have significantly expanded the horizons for gain-of-function genetics in plants.
DOI: --
发表时间: 1999-05
期刊: Genetics
影响因子: 3.3
作者:
Randall F. Warren;Peter M. Merritt;E. B. Holub;R. Innes
通讯作者: Randall F. Warren;Peter M. Merritt;E. B. Holub;R. Innes
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DOI: 10.1073/pnas.94.10.4884
发表时间: 1997-05-13
影响因子: 11.1
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DOI: 10.1101/gad.12.4.547
发表时间: 1998-02-15
影响因子: 10.5
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Ohtsuki, S;Levine, M;Cai, HN
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发表时间: 1996-10-29
影响因子: 11.1
作者:
Rorth, P
通讯作者: Rorth, P
DOI: 10.1105/tpc.6.7.927
发表时间: 1994-07-01
期刊: PLANT CELL
影响因子: 11.6
作者:
BISGROVE, SR;SIMONICH, MT;INNES, RW
通讯作者: INNES, RW