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Evolution of a Novel Phenolic Pathway for Pollen Development

2009; American Association for the Advancement of Science; Volume: 325; Issue: 5948 Linguagem: Inglês

10.1126/science.1174095

1095-9203

Michiyo Matsuno, Vincent Compagnon, G. Schoch, Martine Schmitt, Delphine Debayle, Jean-Étienne Bassard, Brigitte Pollet, Alain Hehn, Dimitri Heintz, Pascaline Ullmann, Catherine Lapierre, François P. Bernier, Jürgen Ehlting, Danièle Werck‐Reichhart,

Plant Gene Expression Analysis

From Retrogene to Phenolic Metabolism Metabolic plasticity, which involves the creation of new genes, is an essential feature of plant adaptation and speciation. Studying plants from the mustard family, Matsuno et al. (p. 1688 ) show that variants of the cytochrome P450 enzyme family were derived through retroposition, duplication, and subsequent mutaton. Evolutionary changes increased the volume of the substrate pocket altering with what sorts of substrates the enzymes could interact. The enzymes formed the basis for a new metabolic pathway, the products of which include constituents of pollen and of phenylpropanoid metabolism.