Time for crops : an exploration of circadian variation in model and crop plant species

Abstract

Plants with circadian rhythms which are synchronised to their surrounding environments have a well described fitness advantage. Optimising circadian rhythms to fit local conditions has the potential to affect crop productivity, plant health and resource use efficiency. A rising global population and changing climate mean that these factors are becoming increasingly important. Compared to our understanding of other variables affecting plant growth and yields, circadian variation in crop panels is a relatively untapped source of phenotypic variation. Delayed fluorescence (DF) is an intrinsic property of all photosynthetic material, oscillating with a ~24h period controlled by the circadian clock. It has an advantage over other circadian assays in that it requires no prior genetic modification and works well in monocot species which don’t display robust leaf-movement rhythms. In this project, DF imaging was applied as a tool for circadian phenotyping in wheat, Brassica and Arabidopsis. As part of the process, a high throughput, reliable assay was developed specific to detached leaves of either Brassica or wheat. Several factors which contribute to circadian trait variation were examined and demonstrate species- ... (continues)

Plant phenotyping relevance

DFイメージングを用いた概日時計の植物表現型解析を適用し、Brassicaおよびコムギ葉向けの高スループット・高信頼性アッセイを開発しており、手法が研究の中心である。

Code and data availability

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