TRIMETHYLGUANOSINE SYNTHASE1 mutations decanalize female germline development in Arabidopsis.

Abstract excerpt

Here, we report the characterization of a plant RNA methyltransferase, orthologous to yeast trimethylguanosine synthase1 (Tgs1p) and whose downregulation was associated with apomixis in Paspalum grasses. Using phylogenetic analyses and yeast complementation, we determined that land plant genomes all encode a conserved, specific TGS1 protein. Next, we studied the role of TGS1 in female reproduction using reporter...

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• Arabidopsis
• Gene Expression Regulation, Plant
• Germ Cells
• Mutation
• Ovule