Conservation and evolution of miRNA regulatory programs in plant development

Over the past two years, microarray technologies, large-scale small RNA and whole genome sequencing projects, and data mining have provided a wealth of information about the spectrum of miRNAs and miRNA targets present in different plant species and the alga Chlamydomonas. Such studies have shown th...

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Bibliographic Details
Published in:Current opinion in plant biology 2007-10, Vol.10 (5), p.503-511
Main Authors: Willmann, Matthew R, Poethig, R Scott
Format: Article
Language:English
Subjects:
Arabidopsis
Arabidopsis - genetics
Arabidopsis - growth & development
Arabidopsis - metabolism
Biological and medical sciences
Biological Evolution
Chlamydomonas
Fundamental and applied biological sciences. Psychology
gene expression regulation
gene silencing
literature reviews
messenger RNA
microRNA
MicroRNAs - genetics
MicroRNAs - metabolism
miRNA
plant development
Plant growth. Development of the storage organs
Plant physiology and development
plants
post-transcriptional silencing
regulatory RNA
RNA
RNA, Plant - genetics
RNA, Plant - metabolism
Vegetative apparatus, growth and morphogenesis. Senescence
Zea mays
Zea mays - genetics
Zea mays - growth & development
Zea mays - metabolism
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Summary:Over the past two years, microarray technologies, large-scale small RNA and whole genome sequencing projects, and data mining have provided a wealth of information about the spectrum of miRNAs and miRNA targets present in different plant species and the alga Chlamydomonas. Such studies have shown that a number of key miRNA regulatory modules for plant development are conserved throughout the plant kingdom, suggesting that these programs were crucial to the colonization of land. New genetic and biochemical studies of miRNA pathways in Arabidopsis, the spatiotemporal expression patterns of several conserved miRNAs and their targets, and the characterization of mutations in Arabidopsis and maize have begun to reveal the functions of these ancient miRNA-regulated developmental programs. In addition to these conserved miRNAs, there are many clade and species-specific miRNAs, which have evolved more recently and whose functions are currently unknown.
ISSN:1369-5266
1879-0356
DOI:10.1016/j.pbi.2007.07.004