MicroRNAs play critical roles during plant development and in response to abiotic stresses

Genetics and Molecular Biology

Júlio César De Lima¹  Guilherme Loss-morais¹  Rogerio Margis¹ 

[1] ,Universidade Federal do Rio Grande do Sul Centro de Biotecnologia Laboratório de Genomas e Populações de PlantasPorto Alegre RS ,Brazil

关键词: miRNAs;    development;    abiotic stress;    nutrients;    deep sequencing;   

DOI  :  10.1590/S1415-47572012000600023

来源: SciELO

【 摘 要 】

MicroRNAs (miRNAs) have been identified as key molecules in regulatory networks. The fine-tuning role of miRNAs in addition to the regulatory role of transcription factors has shown that molecular events during development are tightly regulated. In addition, several miRNAs play crucial roles in the response to abiotic stress induced by drought, salinity, low temperatures, and metals such as aluminium. Interestingly, several miRNAs have overlapping roles with regard to development, stress responses, and nutrient homeostasis. Moreover, in response to the same abiotic stresses, different expression patterns for some conserved miRNA families among different plant species revealed different metabolic adjustments. The use of deep sequencing technologies for the characterisation of miRNA frequency and the identification of new miRNAs adds complexity to regulatory networks in plants. In this review, we consider the regulatory role of miRNAs in plant development and abiotic stresses, as well as the impact of deep sequencing technologies on the generation of miRNA data.

【 授权许可】

CC BY   
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