AINTEGUMENTA-LIKE proteins: hubs in a plethora of networks

生物 分生组织 拟南芥 转录因子 异位表达 细胞生物学 串扰 生长素 遗传学 基因 拟南芥 基因家族 基因组 光学 物理 突变体
作者
Anneke Horstman,Viola Willemsen,Kim Boutilier,Renze Heidstra
出处
期刊:Trends in Plant Science [Elsevier BV]
卷期号:19 (3): 146-157 被引量:167
标识
DOI:10.1016/j.tplants.2013.10.010
摘要

•Various gene networks involve AIL genes to steer plant development. •AILs regulate embryogenesis, meristem development, organ initiation and growth. •AILs interact with auxin pathways at multiple levels throughout plant development. •AIL proteins exert their functions in a dosage-dependent manner. Members of the AINTEGUMENTA-LIKE (AIL) family of APETALA 2/ETHYLENE RESPONSE FACTOR (AP2/ERF) domain transcription factors are expressed in all dividing tissues in the plant, where they have central roles in developmental processes such as embryogenesis, stem cell niche specification, meristem maintenance, organ positioning, and growth. When overexpressed, AIL proteins induce adventitious growth, including somatic embryogenesis and ectopic organ formation. The Arabidopsis (Arabidopsis thaliana) genome contains eight AIL genes, including AINTEGUMENTA, BABY BOOM, and the PLETHORA genes. Studies on these transcription factors have revealed their intricate relationship with auxin as well as their involvement in an increasing number of gene regulatory networks, in which extensive crosstalk and feedback loops have a major role. Members of the AINTEGUMENTA-LIKE (AIL) family of APETALA 2/ETHYLENE RESPONSE FACTOR (AP2/ERF) domain transcription factors are expressed in all dividing tissues in the plant, where they have central roles in developmental processes such as embryogenesis, stem cell niche specification, meristem maintenance, organ positioning, and growth. When overexpressed, AIL proteins induce adventitious growth, including somatic embryogenesis and ectopic organ formation. The Arabidopsis (Arabidopsis thaliana) genome contains eight AIL genes, including AINTEGUMENTA, BABY BOOM, and the PLETHORA genes. Studies on these transcription factors have revealed their intricate relationship with auxin as well as their involvement in an increasing number of gene regulatory networks, in which extensive crosstalk and feedback loops have a major role.
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