alexa Multiple roles for small RNAs during plant reproduction.
Oncology

Oncology

Cancer Surgery

Author(s): Van Ex F, Jacob Y, Martienssen RA, Van Ex F, Jacob Y, Martienssen RA

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Abstract Germline development and early embryogenesis in eukaryotes are characterized by large-scale genome reprogramming events. In companion cells of the Arabidopsis male gametophyte, epigenome reorganization leads to loss of heterochromatin and production of a distinct small RNA (sRNA) population. A specific class of sRNA derived from transposons appears to be mobile and can accumulate in germ cells. In the germline of maize, rice, and Arabidopsis, specific ARGONAUTE-sRNA silencing complexes appear to play key roles in reproductive development, including meiosis and regulation of germ cell fate. These results reveal new roles for sRNAs during plant reproduction and suggest that mobility of sRNAs could be critical for some of these functions. Copyright © 2011 Elsevier Ltd. All rights reserved.
This article was published in Curr Opin Plant Biol and referenced in Cancer Surgery

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