Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence.
Background Aedes albopictus is one of the most invasive species in the world as well as the important vector for mosquito-borne diseases such as dengue fever, chikungunya fever and zika virus disease. Chemical control of mosquitoes is an effective method to control mosquito-borne diseases, however,...
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ftdoajarticles:oai:doaj.org/article:757a8da18efa4623801c37f9c60a2251 2023-05-15T15:14:33+02:00 Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence. Jielin Deng Yijia Guo Xinghua Su Shuang Liu Wenqiang Yang Yang Wu Kun Wu Guiyun Yan Xiao-Guang Chen 2021-04-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0009391 https://doaj.org/article/757a8da18efa4623801c37f9c60a2251 EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pntd.0009391 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0009391 https://doaj.org/article/757a8da18efa4623801c37f9c60a2251 PLoS Neglected Tropical Diseases, Vol 15, Iss 4, p e0009391 (2021) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2021 ftdoajarticles https://doi.org/10.1371/journal.pntd.0009391 2022-12-31T07:09:49Z Background Aedes albopictus is one of the most invasive species in the world as well as the important vector for mosquito-borne diseases such as dengue fever, chikungunya fever and zika virus disease. Chemical control of mosquitoes is an effective method to control mosquito-borne diseases, however, the wide and improper application of insecticides for vector control has led to serious resistance problems. At present, there have been many reports on the resistance to pyrethroid insecticides in vector mosquitoes including deltamethrin to Aedes albopictus. However, the fitness cost and vector competence of deltamethrin resistant Aedes albopictus remain unknown. To understand the impact of insecticide resistant mosquito is of great significance for the prevention and control mosquitoes and mosquito-borne diseases. Methodology/principal findings A laboratory resistant strain (Lab-R) of Aedes albopictus was established by deltamethrin insecticide selecting from the laboratory susceptible strain (Lab-S). The life table between the two strains were comparatively analyzed. The average development time of Lab-R and Lab-S in larvae was 9.7 days and 8.2 days (P < 0.005), and in pupae was 2.0 days and 1.8 days respectively (P > 0.05), indicating that deltamethrin resistance prolongs the larval development time of resistant mosquitoes. The average survival time of resistant adults was significantly shorter than that of susceptible adults, while the body weight of resistant female adults was significantly higher than that of the susceptible females. We also compared the vector competence for dengue virus type-2 (DENV-2) between the two strains via RT-qPCR. Considering the results of infection rate (IR) and virus load, there was no difference between the two strains during the early period of infection (4, 7, 10 day post infection (dpi)). However, in the later period of infection (14 dpi), IR and virus load in heads, salivary glands and ovaries of the resistant mosquitoes were significantly lower than those of the ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic PLOS Neglected Tropical Diseases 15 4 e0009391 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Jielin Deng Yijia Guo Xinghua Su Shuang Liu Wenqiang Yang Yang Wu Kun Wu Guiyun Yan Xiao-Guang Chen Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
Background Aedes albopictus is one of the most invasive species in the world as well as the important vector for mosquito-borne diseases such as dengue fever, chikungunya fever and zika virus disease. Chemical control of mosquitoes is an effective method to control mosquito-borne diseases, however, the wide and improper application of insecticides for vector control has led to serious resistance problems. At present, there have been many reports on the resistance to pyrethroid insecticides in vector mosquitoes including deltamethrin to Aedes albopictus. However, the fitness cost and vector competence of deltamethrin resistant Aedes albopictus remain unknown. To understand the impact of insecticide resistant mosquito is of great significance for the prevention and control mosquitoes and mosquito-borne diseases. Methodology/principal findings A laboratory resistant strain (Lab-R) of Aedes albopictus was established by deltamethrin insecticide selecting from the laboratory susceptible strain (Lab-S). The life table between the two strains were comparatively analyzed. The average development time of Lab-R and Lab-S in larvae was 9.7 days and 8.2 days (P < 0.005), and in pupae was 2.0 days and 1.8 days respectively (P > 0.05), indicating that deltamethrin resistance prolongs the larval development time of resistant mosquitoes. The average survival time of resistant adults was significantly shorter than that of susceptible adults, while the body weight of resistant female adults was significantly higher than that of the susceptible females. We also compared the vector competence for dengue virus type-2 (DENV-2) between the two strains via RT-qPCR. Considering the results of infection rate (IR) and virus load, there was no difference between the two strains during the early period of infection (4, 7, 10 day post infection (dpi)). However, in the later period of infection (14 dpi), IR and virus load in heads, salivary glands and ovaries of the resistant mosquitoes were significantly lower than those of the ... |
format |
Article in Journal/Newspaper |
author |
Jielin Deng Yijia Guo Xinghua Su Shuang Liu Wenqiang Yang Yang Wu Kun Wu Guiyun Yan Xiao-Guang Chen |
author_facet |
Jielin Deng Yijia Guo Xinghua Su Shuang Liu Wenqiang Yang Yang Wu Kun Wu Guiyun Yan Xiao-Guang Chen |
author_sort |
Jielin Deng |
title |
Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence. |
title_short |
Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence. |
title_full |
Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence. |
title_fullStr |
Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence. |
title_full_unstemmed |
Impact of deltamethrin-resistance in Aedes albopictus on its fitness cost and vector competence. |
title_sort |
impact of deltamethrin-resistance in aedes albopictus on its fitness cost and vector competence. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2021 |
url |
https://doi.org/10.1371/journal.pntd.0009391 https://doaj.org/article/757a8da18efa4623801c37f9c60a2251 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 15, Iss 4, p e0009391 (2021) |
op_relation |
https://doi.org/10.1371/journal.pntd.0009391 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0009391 https://doaj.org/article/757a8da18efa4623801c37f9c60a2251 |
op_doi |
https://doi.org/10.1371/journal.pntd.0009391 |
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PLOS Neglected Tropical Diseases |
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15 |
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e0009391 |
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