Observational evidence of herbivore‐specific associational effects between neighboring conspecifics in natural, dimorphic populations of <i>Datura wrightii</i>

Goldberg, Jay K; Sternlieb, Sonya R.; Pintel, Genevieve; Delph, Lynda F.

doi:10.1002/ece3.7454

Cited by 5 publications

(3 citation statements)

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“…5 These, at first glance, ''poor'' female oviposition choices led to reduced parasitism rates in the offspring. 8,19,34 Therefore, it is tempting to propose that M. sexta females make a trade-off during oviposition and to some extent sacrifice the growth rate of their offspring for lower parasitism rates by ovipositing on beetle-infested plants. Our study sheds light on the molecular and olfactory mechanisms behind this trade-off.…”

Section: Beetle-infested Plants May Confer Protection Against Endoparasitoid Waspsmentioning

confidence: 99%

Competing beetles attract egg laying in a hawkmoth

et al. 2022

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Section: Beetle-infested Plants May Confer Protection Against Endoparasitoid Waspsmentioning

confidence: 99%

Competing beetles attract egg laying in a hawkmoth

et al. 2022

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“…Datura wrightii (Solanales: Solanaceae) has begun to serve as a model system for research into the ecology and evolution of various plant traits, including both physical and chemical defenses [ 1 , 2 ], tolerance to herbivory [ 3 ], floral phenotypes [ 4 , 5 ], life histories [ 6 , 7 ], and ontogenetic changes in defense production throughout an individual plant’s lifetime [ 8 , 9 ]. This is due to the wealth of ecological knowledge already gathered regarding this common plant and the specialist insects with which it interacts [ 10 , 11 ]. Furthermore, field-based studies have already provided some insights into the evolutionary processes maintaining a trichome dimorphism in naturally occurring populations [ 2 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…We further use our assembly to conduct a differential expression study into the induced responses of D. wrightii to one of its specialist herbivores, the three-lined potato beetle ( Lema daturaphila ) [ 10 , 11 ]. This analysis utilized older data, generated roughly a decade ago [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

A de novo long-read genome assembly of the sacred datura plant (Datura wrightii) reveals a role of tandem gene duplications in the evolution of herbivore-defense response

Goldberg,

Olcerst,

McKibben

et al. 2024

BMC Genomics

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The sacred datura plant (Solanales: Solanaceae: Datura wrightii) has been used to study plant–herbivore interactions for decades. The wealth of information that has resulted leads it to have potential as a model system for studying the ecological and evolutionary genomics of these interactions. We present a de novo Datura wrightii genome assembled using PacBio HiFi long-reads. Our assembly is highly complete and contiguous (N50 = 179Mb, BUSCO Complete = 97.6%). We successfully detected a previously documented ancient whole genome duplication using our assembly and have classified the gene duplication history that generated its coding sequence content. We use it as the basis for a genome-guided differential expression analysis to identify the induced responses of this plant to one of its specialized herbivores (Coleoptera: Chrysomelidae: Lema daturaphila). We find over 3000 differentially expressed genes associated with herbivory and that elevated expression levels of over 200 genes last for several days. We also combined our analyses to determine the role that different gene duplication categories have played in the evolution of Datura-herbivore interactions. We find that tandem duplications have expanded multiple functional groups of herbivore responsive genes with defensive functions, including UGT-glycosyltranserases, oxidoreductase enzymes, and peptidase inhibitors. Overall, our results expand our knowledge of herbivore-induced plant transcriptional responses and the evolutionary history of the underlying herbivore-response genes.

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Adhesive droplets made from plant-derived oils for control of western flower thrips

Bierman,

Vrieling,

van Zwieten

et al. 2024

J Pest Sci

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Arthropod pests cause significant problems in agricultural crops all around the world. As chemical pesticide use becomes less desired, there is a need for alternative methods of pest control. Inspired by the natural adhesiveness of arthropod trapping plants, we examined the effectiveness of adhesive droplets made from oxidised and cross-linked plant-derived oils for control of western flower thrips. Two filter paper droplet adhesiveness assays and three detached chrysanthemum leaf assays were carried out to test efficacy against thrips. Suspensions containing adhesive droplets and other constituents were applied to filter papers and leaves via spraying or dipping. On filter papers, droplets made from oxidised rice germ oil (RGO) of different sizes caught 40–93% of thrips. Droplets made of a mixture of sunflower, olive, and linseed oil (MIX) caught up to 94% of thrips. Likewise, adhesive droplet-treated filter papers showed higher thrips mortality than untreated or control solution-treated filter papers. On chrysanthemum leaves, thrips were caught by both RGO (up to 40%) and MIX droplets (up to 20%) and thrips damage and reproduction were reduced. On MIX-treated leaves, thrips mortality was also increased. Within treatments, droplets of different size classes occurred and larger droplets were more effective at catching thrips in general. Droplets were also robust to rinsing with water, which is of importance for their application in horticulture. In conclusion, adhesive droplets made from edible plant oils show potential for use in control of western flower thrips.

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Observational evidence of herbivore‐specific associational effects between neighboring conspecifics in natural, dimorphic populations of Datura wrightii

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 5 publications

References 30 publications

Competing beetles attract egg laying in a hawkmoth

Competing beetles attract egg laying in a hawkmoth

A de novo long-read genome assembly of the sacred datura plant (Datura wrightii) reveals a role of tandem gene duplications in the evolution of herbivore-defense response

Adhesive droplets made from plant-derived oils for control of western flower thrips

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