Crop Domestication and Its Impact on Naturally Selected Trophic Interactions

Chen, Yolanda H.; Gols, Rieta; Benrey, Betty

doi:10.1146/annurev-ento-010814-020601

Cited by 315 publications

(314 citation statements)

References 148 publications

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“…These factors included: (i) the measure of herbivore resistance or type of plant trait examined, (ii) which plant organ was measured, (iii) whether the organ measured was the primary organ harvested by humans, (iv) the extent of domestication of the crop, (v) the primary use of the crop, and (vi) the life history of the crop. Our results complement and extend recent narrative reviews on domestication and plant -herbivore interactions [6,7,11] by taking a phylogenetically controlled meta-analysis approach to comparisons between crops and their wild relatives, providing a robust test of the effects of domestication across crops with diverse evolutionary histories.…”

Section: Introductionsupporting

confidence: 67%

“…In addition, we searched the literature cited sections of several previous reviews and key studies on domestication and plant defence [3,6,7,10,11,27,28]. Articles were included in the database if they compared herbivore resistance or putative plant defence traits in a crop and a wild ancestor or relative.…”

Section: Materials and Methods (A) Database Assemblymentioning

confidence: 99%

“…However, it can be difficult to disentangle the relative importance of domestication per se versus agricultural practices in shaping plant-herbivore interactions [1]. One approach to isolating the effects of domestication is to compare crops and wild relatives, and such comparisons have often shown that crops are less resistant to herbivores than their wild counterparts (reviewed in [6,7]). However, most of these studies have focused on a few model crops, and comparisons within studies are generally made among a small number of crop varieties and wild species that represent a single domestication event.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Domestication impacts on plant–herbivore interactions: a meta-analysis

Whitehead

Turcotte

Poveda

2017

Phil. Trans. R. Soc. B

151

155

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One contribution of 18 to a theme issue 'Human influences on evolution, and the ecological and societal consequences'. For millennia, humans have imposed strong selection on domesticated crops, resulting in drastically altered crop phenotypes compared with wild ancestors. Crop yields have increased, but a long-held hypothesis is that domestication has also unintentionally decreased plant defences against herbivores. To test this hypothesis, we conducted a phylogenetically controlled meta-analysis comparing insect herbivore resistance and putative plant defence traits between crops and their wild relatives. Our database included 2098 comparisons made across 73 crops in 89 studies. We found that domestication consistently reduced plant resistance to herbivores, although the magnitude of the effects varied across plant organs and depended on how resistance was measured. However, domestication had no consistent effects on the specific plant defence traits underlying resistance, including secondary metabolites and physical feeding barriers. The values of these traits sometimes increased and sometimes decreased during domestication. Consistent negative effects of domestication were observed only when defence traits were measured in reproductive organs or in the plant organ that was harvested. These results highlight the complexity of evolution under domestication and the need for an improved theoretical understanding of the mechanisms through which agronomic selection can influence the species interactions that impact both the yield and sustainability of our food systems.This article is part of the themed issue 'Human influences on evolution, and the ecological and societal consequences'.

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Section: Introductionsupporting

confidence: 67%

Section: Materials and Methods (A) Database Assemblymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Domestication impacts on plant–herbivore interactions: a meta-analysis

Whitehead

Turcotte

Poveda

2017

Phil. Trans. R. Soc. B

151

155

View full text Add to dashboard Cite

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“…Second, to increase our ecological understanding, it is important to also include more ecologically realistic model systems, as the current systems are often based on crops, as well as on insect species that are either crop pests or chosen for convenience, rather than based on ecological relevance (Chen et al, 2015). This could be accomplished, for example, by using a range of wild plant species that vary in functional traits, which could give better insight into what traits may predict certain plant responses.…”

Section: Discussion and Future Directionsmentioning

confidence: 99%

Effects of Soil Organisms on Aboveground Plant-Insect Interactions in the Field: Patterns, Mechanisms and the Role of Methodology

et al. 2018

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Soil biota-plant interactions play a dominant role in terrestrial ecosystems. Through nutrient mineralization and mutualistic or antagonistic interactions with plants soil biota can affect plant performance and physiology and via this affect plant-associated aboveground insects. There is a large body of work in this field that has already been synthesized in various review papers. However, most of the studies have been carried out under highly controlled laboratory or greenhouse conditions. Here, we review studies that manipulate soil organisms of four dominant taxa (i.e., bacteria, fungi, nematodes, and soil arthropods) in the field and assess the effects on the growth of plants and interactions with associated aboveground insects. We show that soil organisms play an important role in shaping plant-insect interactions in the field and that general patterns can be found for some taxa. Plant growth-promoting rhizobacteria generally have negative effects on herbivore performance or abundance, most likely through priming of defenses in the host plant. Addition of arbuscular mycorrhizal fungi (AMF) has positive effects on sap sucking herbivores, which is likely due to positive effects of AMF on nutrient levels in the phloem. The majority of AMF effects on chewers were neutral but when present, AMF effects were positive for specialist and negative for generalist chewing herbivores. AMF addition has negative effects on natural enemies in the field, suggesting that AMF may affect plant attractiveness for natural enemies, e.g., through volatile profiles. Alternatively, AMF may affect the quality of prey or host insects mediated by plant quality, which may in turn affect the performance and density of natural enemies. Nematodes negatively affect the performance of sap sucking herbivores (generally through phloem quality) but have no effect on chewing herbivores. For soil arthropods there are no clear patterns yet. We further show that the methodology used plays an important role in influencing the outcomes of field studies. Studies using potted plants in the field and studies that remove target soil taxa by means of pesticides are most likely to detect significant results. Lastly, we discuss suggestions for future research that could increase our understanding of soil biota-plant-insect interactions in the field.

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“…However, unlike wild plants, crops have been subjected to intensive selection on morphological and physiological traits that modified their relationship to phytophagous insects (Chen et al 2015). In wheat, this genetic manipulation also affected the developmental timing, resulting in variations in flowering time and the length of the period to maturation and senescence.…”

mentioning

confidence: 99%

Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance

Trávníčková¹,

Pánková²,

Martinková³

et al. 2016

Plant Prot. Sci.

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Trávníčková M., Pánková K., Martinková Z., Honěk A. (2016): Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance. Plant Protect. Sci., 52: 254-261.Maximum aphid numbers on wheat are positively related to the length of the period elapsed from immigration to the population peak. We predicted that maximum abundances on late maturing cultivars would be greater than on early ones. This was tested using 8 spring wheat cultivars that differed in the length of time to senescence. In a 4-year experiment, numbers of aphids were checked at weekly intervals. Maximum abundances on late-maturing cultivars were significantly greater than those on early cultivars. However, the length of the vegetation period affected maximum abundances less than did the annual variation in aphid abundance. Genetic disposition for early ripening thus tends to decrease aphid numbers, but manipulation of this character is unlikely to become an important source of aphid resistance.

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Crop Domestication and Its Impact on Naturally Selected Trophic Interactions

Cited by 315 publications

References 148 publications

Domestication impacts on plant–herbivore interactions: a meta-analysis

Domestication impacts on plant–herbivore interactions: a meta-analysis

Effects of Soil Organisms on Aboveground Plant-Insect Interactions in the Field: Patterns, Mechanisms and the Role of Methodology

Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance

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