Berdien De Beer

ORCID: 0000-0003-0495-6838
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About
Contact & Profiles
Research Areas
  • Insect-Plant Interactions and Control
  • Insect Resistance and Genetics
  • Insect and Pesticide Research
  • Plant Virus Research Studies
  • Insect Pest Control Strategies
  • Fungal Plant Pathogen Control
  • Entomopathogenic Microorganisms in Pest Control
  • Plant tissue culture and regeneration
  • Plant Pathogens and Fungal Diseases
  • Agricultural Practices and Plant Genetics
  • Plant and animal studies
  • Genetic Mapping and Diversity in Plants and Animals
  • Research on scale insects

Ghent University
2022-2024

The role, magnitude, and molecular nature of trans-driven expression variation underlying the upregulation detoxification genes in pesticide resistant arthropod populations has remained enigmatic. In this study, we performed quantitative trait locus (eQTL) mapping (n = 458) between a susceptible strain generalist herbivore crop pest Tetranychus urticae. We found that single trans eQTL hotspot controlled large differences subset different gene families, as well other associated with host...

10.1038/s41467-023-40778-w article EN cc-by Nature Communications 2023-08-17

The extreme adaptation potential of the generalist herbivore Tetranychus urticae (the two-spotted spider mite) to pesticides as well diverse host plants has been associated with clade-specific gene expansions in known detoxifying enzyme families, and extensive rapid transcriptional responses. However, how this broad is regulated remains largely unknown. Using a parental/F1 design which four inbred strains were crossed common strain, we assessed genetic basis inheritance expression variation...

10.1371/journal.pgen.1010333 article EN cc-by PLoS Genetics 2022-11-14

Pyrethroids are widely applied insecticides in agriculture, but their frequent use has provoked many cases of resistance, which mutations the voltage-gated sodium channel (VGSC), pyrethroid target-site, were shown to play a major role. However, for spider mite Tetranychus urticae, it also been that increased detoxification contributes resistance against bifenthrin. Here, we performed QTL-mapping identify genomic loci underlying bifenthrin T. urticae. Two on chromosome 1 identified, with VGSC...

10.3390/biology11111630 article EN cc-by Biology 2022-11-07

Abstract Pesticide resistance relies on a myriad of mechanisms, ranging from single mutations to complex and polygenic architecture, it involves mechanisms such as target‐site insensitivity, metabolic detoxification, or combination these, with either additive synergistic effects. Several against abamectin, macrocyclic lactone widely used in crop protection, have been reported the cosmopolitan pest Tetranychus urticae . However, has shown that mechanism cannot account for high levels...

10.1111/eva.13542 article EN cc-by Evolutionary Applications 2023-03-25

Abstract Dicofol has been widely used to control phytophagous mites. Although dicofol is chemically related DDT, its mode of action remained elusive. Here, we mapped resistance in the spider mite Tetranychus urticae two genomic regions. Each region harbored a glutamate-gated chloride channel (GluCl) gene that contained mutation—G314D or G326E—known confer against unrelated acaricide abamectin. Using electrophysiology assays showed and other diphenylcarbinol acaricides—bromopropylate...

10.1038/s42003-023-05488-5 article EN cc-by Communications Biology 2023-11-13

Abstract Interactions between plants and herbivores promote evolutionary change. Studying the evolution of herbivore mechanisms aimed to cope with diUerent host plant species is a critical intersection biology sustainable pest management. Generalist are particular interest, as hybridization genetically distinct populations can increase standing genetic variation therefore adaptive potential species. Tetranychus urticae generalist arthropod known for its potential, evidenced in immense range...

10.1101/2024.07.05.602111 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2024-07-08

ABSTRACT Interactions between plants and herbivores promote evolutionary change. Studying the evolution of herbivore mechanisms aimed to cope with different host plant species is a critical intersection biology sustainable pest management. Generalist are particular interest, as hybridization genetically distinct populations can increase standing genetic variation therefore adaptive potential species. Tetranychus urticae generalist arthropod known for its potential, evidenced in immense range...

10.1111/mec.17618 article EN Molecular Ecology 2024-12-16

Abstract The extreme adaptation potential of the generalist herbivore Tetranychus urticae (the two-spotted spider mite) to pesticides as well diverse host plants has been associated with clade-specific gene expansions in known detoxifying enzyme families, and extensive rapid transcriptional responses. However, how this broad is regulated remains largely unknown. Using a parental/F1 design which four inbred strains were crossed common strain, we assessed genetic basis inheritance expression...

10.1101/2022.07.13.499853 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2022-07-14

Abstract Pesticide resistance relies on a myriad of mechanisms, ranging from single mutations to complex and polygenic architecture, it involves mechanisms such as target-site insensitivity, metabolic detoxification, or combination these, with either additive synergistic effects. Several against abamectin, macrocyclic lactone widely used in crop protection, have been reported the cosmopolitan pest Tetranychus urticae . However, has shown that mechanism cannot account for high levels...

10.1101/2022.11.25.517948 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2022-11-25
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