Ancestral light and chloroplast regulation form the foundations for C$ {4}$ gene expressionReportar como inadecuado


Ancestral light and chloroplast regulation form the foundations for C$ {4}$ gene expression


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Publication Date: 2016-10-17

Journal Title: Nature Plants

Publisher: Nature Publishing Group

Volume: 2

Number: 16161

Language: English

Type: Article

This Version: AM

Metadata: Show full item record

Citation: Burgess, S. J., Granero-Moya, I., Grangé-Guermente, M. J., Boursnell, C., Terry, M. J., & Hibberd, J. M. (2016). Ancestral light and chloroplast regulation form the foundations for C$_{4}$ gene expression. Nature Plants, 2 (16161)https://doi.org/10.1038/nplants.2016.161

Description: This is the author accepted manuscript. The final version is available from the Nature Publishing Group via http://dx.doi.org/10.1038/nplants.2016.161

Abstract: C$_{4}$ photosynthesis acts as a carbon concentrating mechanism that leads to large increases in photosynthetic efficiency. The C$_{4}$ pathway is found in more than 60 plant lineages but the molecular enablers of this evolution are poorly understood. In particular, it is unclear how non-photosynthetic proteins in the ancestral C$_{3}$ system have repeatedly become strongly expressed and integrated into photosynthesis gene regulatory networks in C$_{4}$ leaves. Here, we provide clear evidence that in C$_{3}$ leaves, genes encoding key enzymes of the C$_{4}$ pathway are already co-regulated with photosynthesis genes and are controlled by both light and chloroplast-to-nucleus signalling. In C$_{4}$ leaves this regulation becomes increasingly dependent on the chloroplast. We propose that regulation of C$_{4}$ cycle genes by light and the chloroplast in the ancestral C$_{3}$ state has facilitated the repeated evolution of the complex and convergent C$_{4}$ trait.

Sponsorship: The work was funded by the European Union 3to4 project and Biotechnology and Biological Sciences Research Council (BBSRC) grant BB/J011754/1. I.G.-M. was supported by the Amgen Foundation. Research on chloroplast signalling by M.J.T. was supported by BBSRC grant (BB/J018139/1).

Identifiers:

External DOI: https://doi.org/10.1038/nplants.2016.161

This record's URL: https://www.repository.cam.ac.uk/handle/1810/260794







Autor: Burgess, Steven J.Granero-Moya, IgnasiGrangé-Guermente, Mathieu J.Boursnell, ChrisTerry, Matthew J.Hibberd, Julian M.

Fuente: https://www.repository.cam.ac.uk/handle/1810/260794



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