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Assessing the evolution of wheat grain traits during the last 166 years using archived samples
AgricultureScientific Reports

Assessing the evolution of wheat grain traits during the last 166 years using archived samples

S. B. Mariem, A. L. Gámez, et al.

This study by Sinda Ben Mariem, Angie L. Gámez, and colleagues uncovers significant changes in wheat grain yield and nutritional quality over more than a century. While carbohydrate content has risen, mineral and protein levels have declined since the 1960s, raising important questions about the effects of environmental changes on crop physiology.... show more
GeneralSummaryMetrics
Abstract
The current study focuses on yield and nutritional quality changes of wheat grain over the last 166 years. It is based on wheat grain quality analyses carried out on samples collected between 1850 and 2016. Samples were obtained from the Broadbalk Continuous Wheat Experiment (UK) and from herbaria from 16 different countries around the world. Our study showed that, together with an increase in carbohydrate content, an impoverishment of mineral composition and protein content occurred. The imbalance in carbohydrate/protein content was specially marked after the 1960's, coinciding with strong increases in ambient [CO₂] and temperature and the introduction of progressively shorter straw varieties. The implications of altered crop physiology are discussed.
Publisher
Scientific Reports
Published On
Dec 11, 2020
Authors
Sinda Ben Mariem, Angie L. Gámez, Luis Larraya, Teresa Fuertes-Mendizabal, Nuria Cañameras, José L. Araus, Steve P. McGrath, Malcolm J. Hawkesford, Carmen Gonzalez Murua, Myriam Gaudeul, Leopoldo Medina, Alan Paton, Luigi Cattivelli, Andreas Fangmeier, James Bunce, Sabine Tausz-Posch, Andy J. Macdonald, Iker Aranjuelo
DOI
https://doi.org/10.1038/s41598-020-78504-x
Tags
wheat grain yieldnutritional qualitycarbohydrate contentmineral compositionclimate changecrop physiologyhistorical analysis
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