The evolution and diversification of Dicers in plants

FEBS Letters
Rogerio MargisP M Waterhouse

Abstract

Most multicellular organisms regulate developmental transitions by microRNAs, which are generated by an enzyme, Dicer. Insects and fungi have two Dicer-like genes, and many animals have only one, yet the plant, Arabidopsis, has four. Examining the poplar and rice genomes revealed that they contain five and six Dicer-like genes, respectively. Analysis of these genes suggests that plants require a basic set of four Dicer types which were present before the divergence of mono- and dicotyledonous plants ( approximately 200 million years ago), but after the divergence of plants from green algae. A fifth type of Dicer seems to have evolved in monocots.

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Citations

Nov 18, 2008·Plant Cell Reports·Fei YanMichael J Adams
Jul 5, 2012·Planta·Cecilia Contreras-CubasAlejandra A Covarrubias
Feb 18, 2009·Functional & Integrative Genomics·Qingpo LiuZhujun Zhu
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