Variation in P450-mediated fenvalerate resistance levels is not correlated with CYP337B3 genotype in Chinese populations of Helicoverpa armigera

Han, Yangchun; Yu, Wanting; Zhang, Weiqing; Yang, Yihua; Walsh, Tom; Oakeshott, John G.; Wu, Yi

doi:10.1016/j.pestbp.2014.12.004

Cited by 37 publications

(36 citation statements)

References 36 publications

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“…The highly diverse genetic structure, recent expansion population, and multidirectional gene flow, plus the presence of putative hybrids, assumes a scenario of uncertainties for pest management of H. armigera . Alleles previously selected may spread long distances and, eventually, be transferred between the species, promoting a fitness increase in Helicoverpa local populations and the rapid evolution of resistance to pesticides and Bt crops in South America (Chakroun et al, ; Downes, Walsh, & Tay, ; Han et al, ; Joußen & Heckel, ).…”

Section: Discussionmentioning

confidence: 99%

Invasion origin, rapid population expansion, and the lack of genetic structure of cotton bollworm (Helicoverpa armigera) in the Americas

Gonçalves

Mastrangelo

Rodrigues

et al. 2019

Ecology and Evolution

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In 2013, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) was officially declared as present in Brazil and, after two years, the species was detected in the Caribbean and North America. Information on genetic features and accurate distribution of pests is the basis for agricultural protection policies. Furthermore, such knowledge is imperative to develop control strategies, understand the geographical range, and genetic patterns of this species in the Americas. Here, we carried out the widest sampling of H. armigera in the South American continent and Puerto Rico, after we estimated the diversity, demographic parameters, and genetic structure. The Internal Transcribed Spacer 1 (ITS1) nuclear marker was used to investigate the presence of putative hybrids between H. armigera and H. zea, and they were observed at a frequency of 1.5%. An ABC analysis, based in COI gene fragment, suggested Europe as the origin of South America specimens of H. armigera and following a movement northward through the Caribbean. Three mtDNA genes and three nDNA markers revealed high genetic diversity distributed without the defined population structure of H. armigera in South America. Most of the genetic variation is within populations with a multidirectional expansion of H. armigera among morphoclimatic regions. High genetic diversity, rapid population expansion, and hybridization have implications for pest management since they suggest that adaptive alleles are spread through wide areas in South America that favor rapid local adaptation of H. armigera to new and disturbed environments (e.g., in agricultural areas).

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Section: Discussionmentioning

confidence: 99%

Invasion origin, rapid population expansion, and the lack of genetic structure of cotton bollworm (Helicoverpa armigera) in the Americas

Gonçalves

Mastrangelo

Rodrigues

et al. 2019

Ecology and Evolution

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“…Olympus phase-contrast uorescent microscope was used for capturing the images. Scoring was based on the previously proposed method [20].…”

Section: Immuno Uorescence Analysismentioning

confidence: 99%

Transplantation of bone mesenchymal stem cells effectively promotes intestine regeneration to eliminate endotoxemia and reduce mortality in the animal model of acute liver failure

Jiang¹,

Xia²,

Yang³

et al. 2020

Preprint

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Background Endotoxemia based on liver failure has been reported to be related to the worse clinical outcomes, but its management remains unsatisfactory. The addition of bone marrow mesenchymal stem cells (BMSCs) could promote the recovery of liver function and increase the survival with the liver failure. However, little is known about the potential of cell therapy with endotoxemia based on liver failure. Methods BMSCs were isolated from rats, and their morphology, differentiation potential, surface markers, and cell cycle were assayed. Thioacetamide-induced acute liver failure rats were randomized to groups with or without BMSCs. During the experiment, survival was recorded. Diamine oxidase (DAO), endotoxin, interleukin-6 (IL-6) and tumor necrosis factor- alpha (TNF-α) and tissue were analyzed by enzyme-linked immunosorbent assay (ELISA), histology, and western blot. Bromodeoxynucleoside uracil (BrdU) incorporation assay was performed to observe the migration of BMSCs. The intestinal epithelial differentiation of BMSCs was induced by co culture with small intestinal crypt in rats (IEC-6). Immunofluorescence was used to analyze the expression of intestinal endothelial markers. Western blot analysis was further performed to examine the differentiation effect when inhibiting the phosphoinositide kinase-3 (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway. Results BrdU-traced BMSCs targeted migrate to intestinal injury sites. Mortality was significantly decreased and intestinal damage was repaired following BMSCs transplantation. Proteomics revealed higher expression of DAO, endotoxin, IL-6 and TNF-α in the model animals, but these changes were reversed after BMSCs transplantation. In the in vitro study, the intestinal epithelial differentiation of BMSCs was exhibited following co-culture. Moreover, the blocking of PI3K/AKT/mTOR signal pathway inhibited this differentiation. Conclusions These evidences indicate that BMSCs eliminate endotoxemia and reduce mortality in the animal model of acute liver failure by reducing intestine damage.

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“…For example, CYP389B1 and CYP392A26 were associated with resistance to fenpropathrin in Tetranychus cinnabarinus, CYP337B3 conferred resistance to cypermethrin in Helicoverpa armigera, CYP6AA7, CYP9J34 and CYP6P4 were associated with resistance to deltamethrin in Anopheles arabiensis, CYP9J24, CYP9J26 and CYP9J28 were associated with resistance to deltamethrin in Aedes aegypti, and CYP9M10 was induced by permethrin in the mosquito Culex quinque fasciatus. [9][10][11][12][13][14][15] However, little is known about the CYPs that could degrade pyrethroids in planthoppers.…”

Section: Introductionmentioning

confidence: 99%

Deltamethrin is metabolized by CYP6FU1, a cytochrome P450 associated with pyrethroid resistance, in Laodelphax striatellus

Elzaki

Miah

Peng

et al. 2018

Pest Management Science

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Variation in P450-mediated fenvalerate resistance levels is not correlated with CYP337B3 genotype in Chinese populations of Helicoverpa armigera

Cited by 37 publications

References 36 publications

Invasion origin, rapid population expansion, and the lack of genetic structure of cotton bollworm (Helicoverpa armigera) in the Americas

Invasion origin, rapid population expansion, and the lack of genetic structure of cotton bollworm (Helicoverpa armigera) in the Americas

Transplantation of bone mesenchymal stem cells effectively promotes intestine regeneration to eliminate endotoxemia and reduce mortality in the animal model of acute liver failure

Deltamethrin is metabolized by CYP6FU1, a cytochrome P450 associated with pyrethroid resistance, in Laodelphax striatellus

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