Control of leaf morphogenesis by microRNAs
Journal Title: | Nature 2003, Vol.425 (6955), p.257-263 |
Main Author: | Carrington, James C |
Other Authors: | Weigel, Detlef , Palatnik, Javier F , Allen, Edwards , Wu, Xuelin , Schommer, Carla , Schwab, Rebecca |
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English |
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Publisher: | London: Nature Publishing |
ID: | ISSN: 0028-0836 |
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recordid: | cdi_proquest_miscellaneous_743148307 |
title: | Control of leaf morphogenesis by microRNAs |
format: | Article |
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ispartof: | Nature, 2003, Vol.425 (6955), p.257-263 |
description: | Plants with altered microRNA metabolism have pleiotropic developmental defects, but direct evidence for microRNAs regulating specific aspects of plant morphogenesis has been lacking. In a genetic screen, we identified the JAW locus, which produces a microRNA that can guide messenger RNA cleavage of several TCP genes controlling leaf development. MicroRNA-guided cleavage of TCP4 mRNA is necessary to prevent aberrant activity of the TCP4 gene expressed from its native promoter. In addition, overexpression of wild-type and microRNA-resistant TCP variants demonstrates that mRNA cleavage is largely sufficient to restrict TCP function to its normal domain of activity. TCP genes with microRNA target sequences are found in a wide range of species, indicating that microRNA-mediated control of leaf morphogenesis is conserved in plants with very different leaf forms. |
language: | eng |
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identifier: | ISSN: 0028-0836 |
fulltext: | no_fulltext |
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