Evolutionary interplay between sister cytochrome P450 genes shapes plasticity in plant metabolism

Zhenhua Liu, Raquel Tavares, Evan S. Forsythe, Francois André, Raphael Lugan, Gabriella Jonasson, Stephanie Boutet-Mercey, Takayuki Tohge, Mark A. Beilstein, Daniele Werck-Reichhart, Hugues Renault

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Expansion of the cytochrome P450 gene family is often proposed to have a critical role in the evolution of metabolic complexity, in particular in microorganisms, insects and plants. However, the molecular mechanisms underlying the evolution of this complexity are poorly understood. Here we describe the evolutionary history of a plant P450 retrogene, which emerged and underwent fixation in the common ancestor of Brassicales, before undergoing tandem duplication in the ancestor of Brassicaceae. Duplication leads first to gain of dual functions in one of the copies. Both sister genes are retained through subsequent speciation but eventually return to a single copy in two of three diverging lineages. In the lineage in which both copies are maintained, the ancestral functions are split between paralogs and a novel function arises in the copy under relaxed selection. Our work illustrates how retrotransposition and gene duplication can favour the emergence of novel metabolic functions.

Original languageEnglish (US)
Article number13026
JournalNature communications
Volume7
DOIs
StatePublished - Oct 7 2016

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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