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Recruitment and remodeling of an ancient gene regulatory network during land plant evolution

文献类型： 外文期刊

作者： Pires, Nuno D. 1 ; Yi, Keke 2 ; Breuninger, Holger 1 ; Catarino, Bruno 1 ; Menand, Benoit 2 ; Dolan, Liam 1 ;

作者机构： 1.Univ Oxford, Dept Plant Sci, Oxford OX1 3RB, England

2.John Innes Ctr Plant Sci Res, Dept Cell & Dev Biol, Norwich NR4 7UH, Norfolk, England

3.Zhejiang Acad Agr Sci, State Key Lab Breeding Base Zhejiang Sustainable, Hangzhou 310021, Zhejiang, Peoples R China

4.Aix Marseille Univ, Commissariat Energie Atom, Lab Genet & Biophys Plantes,CNRS, Dept Plant Biol & Environm Microbiol,Inst Biol En, F-13009 Marseille, France

关键词： Auxin;BHLH;Gametophyte;Protonema;Sporophyte

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：11.205； 五年影响因子：12.291 ）

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收录情况： SCI

摘要： The evolution of multicellular organisms was made possible by the evolution of underlying gene regulatory networks. In animals, the core of gene regulatory networks consists of kernels, stable subnetworks of transcription factors that are highly conserved in distantly related species. However, in plants it is not clear when and how kernels evolved. We show here that RSL (ROOT HAIR DEFECTIVE SIX-LIKE) transcription factors form an ancient land plant kernel controlling caulonema differentiation in the moss Physcomitrella patens and root hair development in the flowering plant Arabidopsis thaliana. Phylogenetic analyses suggest that RSL proteins evolved in aquatic charophyte algae or in early land plants, and have been conserved throughout land plant radiation. Genetic and transcriptional analyses in loss of function A. thaliana and P. patens mutants suggest that the transcriptional interactions in the RSL kernel were remodeled and became more hierarchical during the evolution of vascular plants. We predict that other gene regulatory networks that control development in derived groups of plants may have originated in the earliest land plants or in their ancestors, the Charophycean algae.

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