scholarly journals Orally delivered dsRNA induces knockdown of target genes and mortality in the Asian long‐horned beetle, Anoplophora glabripennis

2020 ◽  
Vol 104 (4) ◽  
Author(s):  
Ramesh Kumar Dhandapani ◽  
Jian Jun Duan ◽  
Subba Reddy Palli
Keyword(s):  
Target Genes ◽  
Anoplophora Glabripennis ◽  
Horned Beetle

RNAi for management of Asian long-horned beetle, Anoplophora glabripennis: identification of target genes

2020 ◽  
Vol 93 (2) ◽  
pp. 823-832 ◽  
Author(s):  
Ramesh Kumar Dhandapani ◽  
Dhandapani Gurusamy ◽  
Jian Jun Duan ◽  
Subba Reddy Palli
Keyword(s):  
Target Genes ◽  
Anoplophora Glabripennis ◽  
Horned Beetle

Efficacy of Emamectin Benzoate Trunk Injection Against the Asian Long-Horned Beetle [Anoplophora glabripennis (Coleoptera: Cerambycidae)]

2019 ◽  
Vol 113 (1) ◽  
pp. 340-347 ◽  
Author(s):  
Jian-Hong Wang ◽  
Shao-Chen Che ◽  
Lan-Fen Qiu ◽  
Guang Li ◽  
Jin-Li Shao ◽  
...  
Keyword(s):  
Emerging Adults ◽  
Intrinsic Activity ◽  
Anoplophora Glabripennis ◽  
Emamectin Benzoate ◽  
Larval Population ◽  
Horned Beetle ◽  
Trunk Injection ◽  
Second Year ◽  
Beijing China ◽  
Fall Application

Abstract The efficacy of tree injected with emamectin benzoate (EB) against the Asian long-horned beetle (ALB) was tested in a heavily infested willow forest in Beijing, China. In a 1.7-ha plot, 240 out of 310 trees were treated with two EB formulations at various rates. After fall application, the larval population decreased by 89% in the following spring and by >99% during the second year detected by monitoring new frass emission from marked holes. Consequently, the number of exit holes of emerging adults decreased to 0 in the second year. Re-infestation occurred in the third year after application. This high efficacy and lasting activity might be contributed to: a) a favorable translocation of EB in trees when injected into the sapwood; b) the high intrinsic activity against ALB larvae with LC50 of 20–30 ppb; and c) a reduced lifespan of ALB adults by over 60% when feeding on twigs of EB-treated trees. On untreated control trees, the larval population decreased during the first winter. In the second year after application, the larval population was wiped out during winter and a re-infestation started from border trees by adults flying in from outside the trial plot. This pattern indicates an eradication of the ALB population in the 1.7-ha plot can be expected 2 yr after EB treatment. The benefit of treating with EB on the surrounding population was observed in both the untreated trees and imidacloprid-treated trees, suggesting that treatment of EB benefits both the treated trees and the surrounding trees in the area.

Development of scar markers for the dna-based detection of the Asian long-horned beetle,Anoplophora glabripennis (Motschulsky)

2003 ◽  
Vol 52 (4) ◽  
pp. 193-204 ◽  
Author(s):  
Damodar R . Kethidi ◽  
David B. Roden ◽  
Tim R. Ladd ◽  
Peter J. Krell ◽  
Arthur Retnakaran ◽  
...  
Keyword(s):  
Anoplophora Glabripennis ◽  
Scar Markers ◽  
Horned Beetle

Development and characterization of polymorphic genomic-SSR markers in Asian long-horned beetle (Anoplophora glabripennis)

2017 ◽  
Vol 107 (6) ◽  
pp. 749-755 ◽  
Author(s):  
Zhaoyang Liu ◽  
Jing Tao ◽  
Youqing Luo
Keyword(s):  
Ssr Markers ◽  
Environmental Concern ◽  
Anoplophora Glabripennis ◽  
Whole Genome ◽  
Genomic Ssr ◽  
Ssr Loci ◽  
Horned Beetle ◽  
Basic Characteristics ◽  
Wood Borer

AbstractThe Asian long-horned beetle (ALB), Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae: Lamiinae), is a wood-borer and polyphagous xylophage that is native to Asia. It infests and seriously harms healthy trees, and therefore is a cause for considerable environmental concern. The analysis of population genetic structure of ALB and sibling species Anoplophora nobilis (Ganglbauer) will not only help to clarify the relationship between environmental variables and mechanisms of speciation, but also will enhance our understanding of evolutionary processes. However, the known genetic markers, particularly microsatellites, are limited for this species. SSRLocator software was used to analyze the distribution and frequencies of genomic simple sequence repeat (SSR), to infer the basic characteristics of repeat motifs, and to design primers. We developed SSR loci of 2–6 repeated units, including 10,650 perfect SSRs, and found 140 types of repeat motifs. A total of 2621 SSR markers were discovered in ALB whole-genome shotgun sequences. 48 pairs of SSR primers were randomly chosen from 2621 SSR markers, and half of these 48 pairs were polymorphic containing 4 di-, 7 tri-, 2 tetra-, and 11-hexamer SSRs. Four populations test the effectiveness of the primers. These results suggest that our method for whole-genome SSR screening is feasible and efficient, and the SSR markers developed in this study are suitable for further population genetics studies of ALB. Moreover, they may also be useful for the development of SSRs for other Coleoptera.

Host preference and host colonization of the Asian long-horned beetle, Anoplophora glabripennis (Coleoptera Cerambycidae), in Southern Europe

2016 ◽  
Vol 106 (3) ◽  
pp. 359-367 ◽  
Author(s):  
M. Faccoli ◽  
R. Favaro
Keyword(s):  
Host Species ◽  
Tree Species ◽  
Host Preference ◽  
Larval Mortality ◽  
Choice Experiments ◽  
Invasive Pest ◽  
Anoplophora Glabripennis ◽  
Host Colonization ◽  
Horned Beetle ◽  
Field And Laboratory Conditions

AbstractThe Asian long-horned beetle (ALB), Anoplophora glabripennis (Motschulsky), is a highly polyphagous invasive pest with a broad range of host species, but showing relevant differences between infestation areas. Host preference and host colonization (female fecundity, egg and larval survival) were assessed in a population in Northern Italy by choice and no-choice experiments conducted in both field and laboratory conditions. During 5 years of field observations, ALB was found to infest seven genera of trees: Acer, Aesculus, Betula, Populus, Prunus, Salix and Ulmus. However, Acer, Betula, Ulmus and Salix resulted to be the preferred hosts corresponding to 97.5% (1112) of the 1140 infested trees. In both laboratory and field trials carried out on these four host genera, no-choice experiments recorded the highest host colonization of A. glabripennis on Acer trees, with the highest number of laid eggs and the lowest egg and larval mortality. Ulmus and Salix showed a lower number of laid eggs during laboratory choice test, but egg and larval mortality had mean values similar to Acer. On the contrary, despite the high number of Betula trees felled during the eradication plan carried out in the infestation area, this tree species showed the lowest beetle suitability in terms of number of laid eggs and insect survival. An overestimation of the number of infested Betula occurring during the tree survey may explain the discordance between high number of infested Betula and low beetle suitability. Instead, the large number of infested Acer recorded in the field was probably due to the high abundance of these trees occurring in parks and gardens within the infestation area and to the low adult dispersal of A. glabripennis. Overall, results from this study confirm that host species affects both beetle colonization and breeding performance. The study shows ALB host preference and host suitability varying between tree species, suggesting an ALB acceptance even of sub-optimal hosts.

scholarly journals Chemical Ecology of Asian Long Horned Beetle (Anoplophora glabripennis) - A Review

2017 ◽  
Vol 49 (3) ◽  
pp. 1093-1105 ◽  
Author(s):  
Saqib Ali ◽  
Suliman Ali ◽  
Lina Lina ◽  
Wen Zhou ◽  
Muhammad Irfan Waris ◽  
...  
Keyword(s):  
Chemical Ecology ◽  
Anoplophora Glabripennis ◽  
Horned Beetle

Nuclear receptors in disease: the oestrogen receptors

2004 ◽  
Vol 40 ◽  
pp. 157-167 ◽  
Author(s):  
Maria Nilsson ◽  
Karin Dahlman-Wright ◽  
Jan-Åke Gustafsson
Keyword(s):  
Nuclear Receptors ◽  
Target Genes ◽  
Receptor Subtype ◽  
Target Tissue ◽  
Oestrogen Receptors ◽  
Nucleotide Polymorphisms ◽  
Cell Type ◽  
Single Nucleotide ◽  
Beneficial Effects ◽  
The Family

For several decades, it has been known that oestrogens are essential for human health. The discovery that there are two oestrogen receptors (ERs), ERalpha and ERbeta, has facilitated our understanding of how the hormone exerts its physiological effects. The ERs belong to the family of ligand-activated nuclear receptors, which act by modulating the expression of target genes. Studies of ER-knockout (ERKO) mice have been instrumental in defining the relevance of a given receptor subtype in a certain tissue. Phenotypes displayed by ERKO mice suggest diseases in which dysfunctional ERs might be involved in aetiology and pathology. Association between single-nucleotide polymorphisms (SNPs) in ER genes and disease have been demonstrated in several cases. Selective ER modulators (SERMs), which are selective with regard to their effects in a certain cell type, already exist. Since oestrogen has effects in many tissues, the goal with a SERM is to provide beneficial effects in one target tissue while avoiding side effects in others. Refined SERMs will, in the future, provide improved therapeutic strategies for existing and novel indications.

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