Shifts in plant functional strategies over the course of wheat domestication

Roucou, Agathe; Violle, Cyrille; Fort, Florian; Roumet, Pierre; Ecarnot, Martin; Vile, Denis

doi:10.1111/1365-2664.13029

Cited by 92 publications

(90 citation statements)

References 101 publications

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“…Also, domestication effects observed in SRL were positive and in line with earlier findings (Grossman & Rice 2012;Roucou et al 2018). Variability of the domestication effect could be a consequence of different objectives for selection among our crops.…”

Section: Domestication Effect On Plant Traitssupporting

confidence: 91%

“…We hypothesised that plant functional traits explain the influence of plant species on the rhizosphere microbiome. Since breeding of crops can result in trait variation (Milla et al 2014;Milla & Matesanz 2017;Roucou et al 2018), we tested whether domesticated plants had a consistently different influence on their rhizosphere communities than do their closely related wild relatives. Our results suggest that plants filter local microbial soil communities in their rhizosphere in interaction with the soil environment, and variation in microbiomes are in part explained by plant functional traits.…”

Section: Discussionmentioning

confidence: 99%

“…However, it is conceivable that also in agro-ecosystems these ecological principles can be applied despite the fact that in those systems human intervention creates specific conditions for plant growth (Philippot et al 2013;Milla et al 2015;Pérez-Jaramillo, Mendes & Raaijmakers 2016;Mariotte et al 2018). Not only are soil nutrient levels managed but also the plant traits themselves have undergone selection by humans for desirable traits such as fast growth and high yields (García-Palacios et al 2013;Tribouillois et al 2015;Milla & Matesanz 2017;Roucou et al 2018). This, on the one hand provides an extension to the trait and environmental spectra and on the other hand enables to test mechanisms underlying plant legacy effects in a relative simple yet highly relevant setting, as agroecosystems tend to be simplified in comparison to natural systems (García-Palacios et al 2013;Tribouillois et al 2015;Mariotte et al 2018).…”

Section: Learning From Natural and Agro-ecosystemsmentioning

confidence: 99%

“…In line with PES theory, such selection would result in plants with more resource-acquisitive traits. Indeed, several studies focussing on functional traits of crops support this expectation (García-Palacios et al 2013;Milla & Matesanz 2017;Roucou et al 2018) although other studies find more variable effects of domestication (Milla et al 2014). Most research has focussed on aboveground productivity and plant traits.…”

Section: Side Effects Of Artificial Crop Selectionmentioning

confidence: 99%

“…In croplands, roots represent 10% of plant biomass production, of which 46% C is retained in soil organic matter versus only 8% of aboveground C as most aboveground material is harvested while roots remain in soil (Jackson et al 2017). Moreover, the use of cover crops in agriculture relies on decomposition of above-and belowground plant residues incorporated in soil to improve soil quality (Wagger, Cabrera & Ranells 1998 cropping systems also appears to have led to loss of coordination between above-and belowground traits (Milla et al 2014;Roucou et al 2018).…”

Section: Introductionmentioning

confidence: 99%

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A plant’s inheritance : Soil legacy effects of crops and wild relatives in relation to plant functional traits

Barel¹

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During crop domestication plant characteristics have been artificially selected for, with potential unwanted side-effects as some characteristics might have been altered unintentionally. Since productivity in agriculture relies on the interactions between plant and soil, it is a necessity to study the relationship between plant traits, decomposition, microbial community composition and the possible effects on future plant growth.This thesis presents results from several experiments studying how plants influence the soil, through decomposition of plant residues, the soil microbial community assemblage, and its possible consequence for subsequent plant growth. In a crop rotation experiment plant-soil feedback effects have been studied at field scale, with legacy effects of winter cover crops as the primary focus. Influences of plant traits on litter decomposition and microbial community were studied both in a field context and under controlled greenhouse conditions. By comparing the legacy effects of crops with close-relatives from natural grasslands the effects of domestication on litter decomposition and rhizosphere microbial community composition were explored.In the field experiment, it was observed that mixtures of cover crops can perform better than the sum of their parts when the plants in the mixture complemented each other during their growth. Productivity and quality of cover crops was found to promote growth of subsequent main crops, in part through stimulation of soil fungal biomass and feedback effects of decomposing litter. In the greenhouse, growing plants were observed to suppress decomposition of root and shoot litter to varying extent depending on which plant was present and on the quality of the decomposing litter. The results also indicate that domestication has affected plant functional traits in a variety of ways, rather than having predictable effects across a range of crops. Plant functional traits are a useful approach to study legacy effects, as they predict decomposability of plant residues and partially explain the microbial community composition in the rhizosphere. Significance of plant traits as predictors varied with environmental conditions, thus interpretation of the results should be related to its context. This thesis contributes to the understanding of plant-soil interactions, with emphasis on differences and similarities of agricultural and natural ecosystems.

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Section: Domestication Effect On Plant Traitssupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Learning From Natural and Agro-ecosystemsmentioning

confidence: 99%

Section: Side Effects Of Artificial Crop Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A plant’s inheritance : Soil legacy effects of crops and wild relatives in relation to plant functional traits

Barel¹

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Changes in crop trait plasticity with domestication history: Management practices matter

Nimmo,

Violle,

Entz

et al. 2023

Ecology and Evolution

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Crop domestication has led to the development of distinct trait syndromes, a series of constrained plant trait trade‐offs to maximize yield in high‐input agricultural environments, and potentially constrained trait plasticity. Yet, with the ongoing transition to organic and diversified agroecosystems, which create more heterogeneous nutrient availability, this constrained plasticity, especially in root functional traits, may be undesirable for nutrient acquisition. Such agricultural systems require a nuanced understanding of the soil‐crop continuum under organic amendments and with intercropping, and the role crop genetic resources play in governing nutrient management and design. In this study, we use a functional traits lens to determine if crops with a range of domestication histories express different functional trait plasticity and how this expression changes with soil amendments and intercropping. We utilize a common garden experiment including five wheat (Triticum aestivum) varietals with a range of domestication histories planted in a factorial combination with amendment type (organic and inorganic) and cropping design (monoculture or intercropped with soybean). We use bivariate, multivariate and trait space analyses to quantify trait variation and plasticity in five leaf and five root functional traits. Almost all leaf and root traits varied among varieties. Yet, amendment type was nearly inconsequential for explaining trait expression across varieties. However, intercropping was linked to significant differences in root acquisitive strategies, regardless of the varietals' distinct history. Our findings show substantial leaf and root trait plasticity, with roots expressing greater trait space occupation with domestication, but also the strong role of management in crop trait expression. We underscore the utility of a functional trait‐based approach to understand plant–soil dynamics with organic amendments, as well as the role of crop genetic histories in the successful transition to low‐input and diversified agroecosystems.

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Domestication provides durum wheat with protection from locust herbivory

Chapuis

Leménager

Piou

et al. 2023

Ecology and Evolution

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Lower plant resistance to herbivores following domestication has been suggested as the main cause for higher feeding damage in crops than in wild progenitors. While herbivore compensatory feeding has also been proposed as a possible mechanism for raised damage in crops with low nutritional quality, predictions regarding the effects of plant domestication on nutritional quality for herbivores remain unclear. In particular, data on primary metabolites, even major macronutrients, measured in the organs consumed by herbivores, are scarce. In this study, we used a collection of 10 acces-

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Shifts in plant functional strategies over the course of wheat domestication

Cited by 92 publications

References 101 publications

A plant’s inheritance : Soil legacy effects of crops and wild relatives in relation to plant functional traits

A plant’s inheritance : Soil legacy effects of crops and wild relatives in relation to plant functional traits

Changes in crop trait plasticity with domestication history: Management practices matter

Domestication provides durum wheat with protection from locust herbivory

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