Diversification of genes encoding mei2 -like RNA binding proteins in plants

Plant Molecular Biology
Garrett H AndersonBruce Veit

Abstract

A predominantly plant-based family of genes encoding RNA binding proteins is defined by the presence of a highly conserved RNA binding motif first described in the mei2 gene of the fission yeast Schizosaccharomyces pombe. In silico analyses reveal nine mei2 -like genes in Arabidopsis thaliana and six in Oryza sativa. These predicted genes group into four distinct clades, based on overall sequence similarity and subfamily-specific sequence elements. In situ analysis show that Arabidopsis genes from one of these clades, TEL1 and TEL2, are specifically expressed in central zone of the shoot apical meristem and the quiescent center of the root apical meristem, suggesting that they may somehow function to maintain indeterminacy in these tissues. By contrast, members of two sister clades, AML1 through AML5, are expressed more broadly, a trend that was confirmed by Q-PCR analysis. mei2 -like transcripts with similar sequences showed similar expression patterns, suggesting functional redundancy within the four clades. Phenotypic analyses of lines that contain T-DNA insertions to individual mei2 -like genes reveal no obvious phenotypes, further suggesting redundant activities for these gene products.

Citations

Oct 13, 2006·Plant Molecular Biology·Lucia Cardenas PawloskiRichard Brian Meagher
Aug 7, 2012·Journal of Experimental Botany·Céline CharonYves Henry
Feb 8, 2006·The Plant Cell·Taiji KawakatsuYasuo Nagato
Jun 29, 2010·Gene Expression Patterns : GEP·Pooja AggarwalG Venugopala Reddy
Mar 1, 2013·The Plant Journal : for Cell and Molecular Biology·Hicham ChahtaneGabrielle Tichtinsky
Dec 21, 2004·Biochemical and Biophysical Research Communications·Dorothée DeprostChristian Meyer
Feb 26, 2016·Annual Review of Plant Biology·Thomas DobrenelChristian Meyer
May 26, 2006·Plant Molecular Biology·Jun-ichi ItohMakoto Matsuoka
May 26, 2006·Plant Molecular Biology·Bruce Veit
Apr 20, 2005·Journal of Experimental Botany·Nicolas PaquetCeline Charon
Jul 12, 2019·Botanical Studies·Chia-Ling ChangYue-Ie C Hsing
Aug 21, 2020·The EMBO Journal·Ruben GutzatOrtrun Mittelsten Scheid
Aug 8, 2015·The Biochemical Journal·Daniel RexinBruce Veit
Jun 26, 2014·Development·Ram Kishor YadavG Venugopala Reddy

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