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Updated: Jun 25, 2026

mRNA Interactome Capture from Plant Protoplasts
Published on: July 28, 2017
Conservation of dual-targeted proteins in Arabidopsis and rice points to a similar pattern of gene-family evolution
Carolina V Morgante1, Ricardo A O Rodrigues, Phellippe A S Marbach
1Departamento de Genética, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Av. Pádua Dias, 11, C.P. 83, Piracicaba, SP, 13400-970, Brazil.
Abstract:
Gene duplication followed by acquisition of specific targeting information and dual targeting were evolutionary strategies enabling organelles to cope with overlapping functions. We examined the evolutionary trend of dual-targeted single-gene products in Arabidopsis and rice genomes. The number of paralogous proteins encoded by gene families and the dual-targeted orthologous proteins were analysed. The number of dual-targeted proteins and the corresponding gene-family sizes were similar in Arabidopsis and rice irrespective of genome sizes. We show that dual targeting of methionine aminopeptidase, monodehydroascorbate reductase, glutamyl-tRNA synthetase, and tyrosyl-tRNA synthetase was maintained despite occurrence of whole-genome duplications in Arabidopsis and rice as well as a polyploidization followed by a diploidization event (gene loss) in the latter.
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