Host plants transfer induced regulation of the chemosensory genes repertoire in the alfalfa plant bug Adelphocoris lineolatus (Goeze)

2021 ◽  
Vol 38 ◽  
pp. 100798
Author(s):  
Yong Xiao ◽  
Liang Sun ◽  
Qi Wang ◽  
Xing-Kui An ◽  
Xin-Zheng Huang ◽  
...  
Keyword(s):  
Host Plants ◽  
Alfalfa Plant ◽  
Chemosensory Genes ◽  
Adelphocoris Lineolatus

The Alfalfa Plant Bug, Adelphocoris lineolatus (Goeze) in Northern Saskatchewan

1963 ◽  
Vol 95 (1) ◽  
pp. 6-13 ◽  
Author(s):  
C. H. Craig
Keyword(s):  
Host Plants ◽  
Trifolium Pratense ◽  
Red Clover ◽  
The United States ◽  
Control Measures ◽  
Seasonal Development ◽  
Migratory Behaviour ◽  
Alfalfa Plant ◽  
Adelphocoris Lineolatus ◽  
Main Host

AbstractThe alfalfa plant bug, Adelphocoris lineolatus (Goeze), a well-known pest of alfalfa in Europe and the United States, was first recorded in Saskatchewan in 1947, in the Hudson Bay district about 16 miles west of the Manitoba border. By 1959 it had spread westward through the northern agricultural area of the province to within 35 miles of the Alberta border. Economic infestations appeared within two to four years of its initial occurrence in each district.The migratory behaviour of the adult, which is apparently essential for maximum reproduction, effects rapid dispersal of the species. Also, because of this migratory behaviour control measures may have to be undertaken each year, and seedling stands may be infested in the first crop year.The seasonal development of the insect is described. Apparently in the spread of the insect northward a univoltine population is being selected. Eggs that have overwintered in stems hatch in late May and early June. Development proceeds through five nymphal instars, and adults begin to appear toward the end of June. These adults lay eggs during the latter part of July. Most of the eggs enter diapause: less than five per cent of them hatch the same year, and any second-generation adults that do occur do not have time to mate and lay eggs before all activity is halted by freezing weather.The main host plants of A. lineolatus are two cultivated legumes, alfalfa, Medicago media Pers., and red clover, Trifolium pratense L. No native host plants have been found in Saskatchewan.About three per cent of field-collected nymphs from the Nipawin district were parasitized by braconid larvae tentatively identified as Euphorus pallipes (Curtis).

scholarly journals Functional Characterizations of Chemosensory Proteins of the Alfalfa Plant Bug Adelphocoris lineolatus Indicate Their Involvement in Host Recognition

PLoS ONE ◽  
2012 ◽  
Vol 7 (8) ◽  
pp. e42871 ◽  
Author(s):  
Shao-Hua Gu ◽  
Song-Ying Wang ◽  
Xue-Ying Zhang ◽  
Ping Ji ◽  
Jing-Tao Liu ◽  
...  
Keyword(s):  
Host Recognition ◽  
Alfalfa Plant ◽  
Chemosensory Proteins ◽  
Adelphocoris Lineolatus

scholarly journals Sex Pheromone of the Alfalfa Plant Bug, Adelphocoris lineolatus: Pheromone Composition and Antagonistic Effect of 1-Hexanol (Hemiptera: Miridae)

2021 ◽  
Author(s):  
Sándor Koczor ◽  
József Vuts ◽  
John C. Caulfield ◽  
David M. Withall ◽  
André Sarria ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Field Experiments ◽  
Geographical Area ◽  
Asian Population ◽  
Antagonistic Effect ◽  
Ternary Blend ◽  
Alfalfa Plant ◽  
Hexyl Butyrate ◽  
Adelphocoris Lineolatus ◽  
Pheromone Composition

AbstractThe sex pheromone composition of alfalfa plant bugs, Adelphocoris lineolatus (Goeze), from Central Europe was investigated to test the hypothesis that insect species across a wide geographical area can vary in pheromone composition. Potential interactions between the pheromone and a known attractant, (E)-cinnamaldehyde, were also assessed. Coupled gas chromatography-electroantennography (GC-EAG) using male antennae and volatile extracts collected from females, previously shown to attract males in field experiments, revealed the presence of three physiologically active compounds. These were identified by coupled GC/mass spectrometry (GC/MS) and peak enhancement as hexyl butyrate, (E)-2-hexenyl butyrate and (E)-4-oxo-2-hexenal. A ternary blend of these compounds in a 5.4:9.0:1.0 ratio attracted male A. lineolatus in field trials in Hungary. Omission of either (E)-2-hexenyl-butyrate or (E)-4-oxo-2-hexenal from the ternary blend or substitution of (E)-4-oxo-2-hexenal by (E)-2-hexenal resulted in loss of activity. These results indicate that this Central European population is similar in pheromone composition to that previously reported for an East Asian population. Interestingly, another EAG-active compound, 1-hexanol, was also present in female extract. When 1-hexanol was tested in combination with the ternary pheromone blend, male catches were reduced. This compound showed a dose-response effect with small doses showing a strong behavioral effect, suggesting that 1-hexanol may act as a sex pheromone antagonist in A. lineolatus. Furthermore, when (E)-cinnamaldehyde was field tested in combination with the sex pheromone, there was no increase in male catch, but the combination attracted both males and females. Prospects for practical application are discussed.

Sex pheromone of the alfalfa plant bug,Adelphocoris lineolatus

2015 ◽  
Vol 156 (3) ◽  
pp. 263-270 ◽  
Author(s):  
Tao Zhang ◽  
Xiang-Dong Mei ◽  
Yao-Fa Li ◽  
Kaixin Zhang ◽  
Kong-Ming Wu ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Alfalfa Plant ◽  
Adelphocoris Lineolatus

scholarly journals Identification of candidate chemosensory genes of Ophraella communa LeSage (Coleoptera: Chrysomelidae) based on antennal transcriptome analysis

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Chao Ma ◽  
Chenchen Zhao ◽  
Shaowei Cui ◽  
Yan Zhang ◽  
Guangmei Chen ◽  
...  
Keyword(s):  
Host Plants ◽  
Odorant Receptors ◽  
Oviposition Site Selection ◽  
Odorant Binding Proteins ◽  
Chemosensory Genes ◽  
Olfactory Systems ◽  
Ophraella Communa ◽  
Polymerase Chain ◽  
Odorant Binding ◽  
Generation Sequencing

Abstract Antennal olfaction plays a key role in insect survival, which mediates important behaviors like host search, mate choice, and oviposition site selection. As an oligophagous insect, olfaction is extremely important for Ophraella communa to locate host plants. However, information on the olfactory genes has been lacking in O. communa. Using next generation sequencing, we assembled the antennal transcriptome of O. communa and first reported the major chemosensory genes necessary for olfaction in this species. In this study, a total 105 candidate chemosensory genes were identified in O. communa antennae, including 25 odorant-binding proteins (OBPs), 11 chemosensory proteins (CSPs), four sensory neuron membrane proteins (SNMPs), 30 odorant receptors (ORs), 18 ionotropic receptors (IRs), and 17 gustatory receptors (GRs). We also identified full-length sequences of the highly conserved ORco and IR8a/25a family in O. communa. In addition, the expression profile of 15 ORs and four OBPs were validated by quantitative real-time polymerase chain reaction (qPCR). We found that OcomOR2/4/19 and OcomOBP19/20 had a biased expression in male antennae, and OcomOR8 had a biased expression in the female antennae. This large number of chemosensory genes handled by homology analysis and qPCR results will provide the first insights into molecular basis for the olfactory systems of O. communa as well as advance our understanding of olfactory mechanisms in Coleoptera.

THE EFFECTS OF ALFALFA PLANT BUG (HEMIPTERA: MIRIDAE) FEEDING LATE IN THE SEASON ON ALFALFA SEED YIELD IN NORTHERN SASKATCHEWAN

1993 ◽  
Vol 125 (5) ◽  
pp. 815-824 ◽  
Author(s):  
Juliana J. Soroka ◽  
Dorothy C. Murrell
Keyword(s):  
Seed Yield ◽  
Acyrthosiphon Pisum ◽  
Pea Aphid ◽  
Field Cage ◽  
North Central ◽  
Alfalfa Plant ◽  
Adelphocoris Lineolatus ◽  
Alfalfa Seed ◽  
Seed Yields ◽  
Beneficial Arthropod

AbstractA 4-year field cage study was conducted to determine what effects feeding of alfalfa plant bug, Adelphocoris lineolatus (Goeze), late in the season had on alfalfa seed yields. When zero, one, two, or four alfalfa plant bugs were placed in sleeve cages containing stems of alfalfa at the green pod stage of growth, there was a significant decrease in the number of pods per cage and per raceme, the number of healthy seeds, and the weight of seeds with two or four bugs per cage. Increasing the duration of infestation resulted in significant increases in the number of damaged seeds per cage. An insecticide field trial was conducted in north central Saskatchewan in 1988 to determine what effects the occurrence of plant bugs had on seed yields of alfalfa. Alfalfa plant bug, lygus bug (Lygus spp.), pea aphid [Acyrthosiphon pisum (Harris)], and beneficial arthropod populations were monitored from 23 June to 1 September 1988. Seed yields were significantly greater in plots that were treated with trichlorfon in June and in June and August than in plots that were treated in August alone. The implications of a large alfalfa plant bug population late in the season to alfalfa seed production in the area are discussed.

scholarly journals A Genomic Survey of Mayetiola destructor Mobilome Provides New Insights into the Evolutionary History of Transposable Elements in the Cecidomyiid Midges

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0257996
Author(s):  
Wiem Ben Amara ◽  
Hadi Quesneville ◽  
Maha Mezghani Khemakhem
Keyword(s):  
Transposable Elements ◽  
Evolutionary History ◽  
Host Plants ◽  
De Novo ◽  
Class Ii ◽  
Mayetiola Destructor ◽  
Whole Genome Sequence ◽  
Valuable Resource ◽  
Chemosensory Genes ◽  
History Of

The availability of the Whole-Genome Sequence of the wheat pest Mayetiola destructor offers the opportunity to investigate the Transposable Elements (TEs) content and their relationship with the genes involved in the insect virulence. In this study, de novo annotation carried out using REPET pipeline showed that TEs occupy approximately 16% of the genome and are represented by 1038 lineages. Class II elements were the most frequent and most TEs were inactive due to the deletions they have accumulated. The analyses of TEs ages revealed a first burst at 20% of divergence from present that mobilized many TE families including mostly Tc1/mariner and Gypsy superfamilies and a second burst at 2% of divergence, which involved mainly the class II elements suggesting new TEs invasions. Additionally, 86 TEs insertions involving recently transposed elements were identified. Among them, several MITEs and Gypsy retrotransposons were inserted in the vicinity of SSGP and chemosensory genes. The findings represent a valuable resource for more in-depth investigation of the TE impact onto M. destructor genome and their possible influence on the expression of the virulence and chemosensory genes and consequently the behavior of this pest towards its host plants.

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