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Article

An Altered Circadian Clock Coupled with a Higher Photosynthesis Efficiency Could Explain the Better Agronomic Performance of a New Coffee Clone When Compared with a Standard Variety

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CIRAD, IPME, 34 398 Montpellier, France
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IRD, IPME, 34 398 Montpellier, France
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UMR IPME, Univ. Montpellier, IRD, CIRAD, 34 398 Montpellier, France
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Nestlé R&D Tours, 101 AV. G. Eiffel, Notre Dame d’Oé, BP 49716, 37097 Tours CEDEX 2, France
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2019, 20(3), 736; https://doi.org/10.3390/ijms20030736
Received: 21 December 2018 / Revised: 28 January 2019 / Accepted: 30 January 2019 / Published: 10 February 2019
(This article belongs to the Special Issue Transcriptional and Post-transcriptional Gene Regulation in Plants)
In a context where climate change is threatening coffee productivity, the management of coffee leaf rust is a challenging issue. Major resistant genes, which have been used for many years, are systematically being overcome by pathogens. Developing healthy plants, able to defend themselves and be productive even when attacked by the pathogen, should be part of a more sustainable alternative approach. We compared one hybrid (GPFA124), selected for its good health in various environments including a reduced rust incidence, and the cv. ‘Caturra’, considered as a standard in terms of productivity and quality but highly susceptible to rust, for phenotypic variables and for the expression of genes involved in the circadian clock and in primary photosynthetic metabolism. The GPFA124 hybrid showed increased photosynthetic electron transport efficiency, better carbon partitioning, and higher chlorophyll content. A strong relationship exists between chlorophyll a fluorescence and the expression of genes related to the photosynthetic electron transport chain. We also showed an alteration of the amplitude of circadian clock genes in the clone. Our work also indicated that increased photosynthetic electron transport efficiency is related to the clone’s better performance. Chlorophyll a fluorescence measurement is a good indicator of the coffee tree’s physiological status for the breeder. We suggest a connection between the circadian clock and carbon metabolism in coffee tree. View Full-Text
Keywords: Coffea arabica; chlorophyll a fluorescence; transcriptomic approach; plant vigor; circadian clock Coffea arabica; chlorophyll a fluorescence; transcriptomic approach; plant vigor; circadian clock
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MDPI and ACS Style

Toniutti, L.; Breitler, J.-C.; Guittin, C.; Doulbeau, S.; Etienne, H.; Campa, C.; Lambot, C.; Herrera Pinilla, J.-C.; Bertrand, B. An Altered Circadian Clock Coupled with a Higher Photosynthesis Efficiency Could Explain the Better Agronomic Performance of a New Coffee Clone When Compared with a Standard Variety. Int. J. Mol. Sci. 2019, 20, 736. https://doi.org/10.3390/ijms20030736

AMA Style

Toniutti L, Breitler J-C, Guittin C, Doulbeau S, Etienne H, Campa C, Lambot C, Herrera Pinilla J-C, Bertrand B. An Altered Circadian Clock Coupled with a Higher Photosynthesis Efficiency Could Explain the Better Agronomic Performance of a New Coffee Clone When Compared with a Standard Variety. International Journal of Molecular Sciences. 2019; 20(3):736. https://doi.org/10.3390/ijms20030736

Chicago/Turabian Style

Toniutti, Lucile, Jean-Christophe Breitler, Charlie Guittin, Sylvie Doulbeau, Hervé Etienne, Claudine Campa, Charles Lambot, Juan-Carlos Herrera Pinilla, and Benoît Bertrand. 2019. "An Altered Circadian Clock Coupled with a Higher Photosynthesis Efficiency Could Explain the Better Agronomic Performance of a New Coffee Clone When Compared with a Standard Variety" International Journal of Molecular Sciences 20, no. 3: 736. https://doi.org/10.3390/ijms20030736

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