Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity
Abstract As part of sterile insect technique (SIT) programs, irradiation can effectively induce sterility in insects by damaging germline genomic DNA. However, irradiation also induces other off‐target side effects that reduce the quality and performance of sterilized males, including the formation...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-02-01
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| Series: | Evolutionary Applications |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/eva.13141 |
| _version_ | 1819170615165190144 |
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| author | Giancarlo López‐Martínez James E. Carpenter Stephen D. Hight Daniel A. Hahn |
| author_facet | Giancarlo López‐Martínez James E. Carpenter Stephen D. Hight Daniel A. Hahn |
| author_sort | Giancarlo López‐Martínez |
| collection | DOAJ |
| description | Abstract As part of sterile insect technique (SIT) programs, irradiation can effectively induce sterility in insects by damaging germline genomic DNA. However, irradiation also induces other off‐target side effects that reduce the quality and performance of sterilized males, including the formation of damaging free radicals that can reduce sterile male performance. Thus, treatments that reduce off‐target effects of irradiation on male performance while maintaining sterility can improve the feasibility and economy of SIT programs. We previously found that inducing a form of rapid, beneficial plasticity with a 1‐hr anoxic‐conditioning period (physiological conditioning hormesis) prior to and during irradiation improves male field performance in the laboratory while maintaining sterility in males of the cactus moth, Cactoblastis cactorum. Here, we extend this work by testing the extent to which this beneficial plasticity may improve male field performance and longevity in the field. Based on capture rates after a series of mark release–recapture experiments, we found that anoxia‐conditioned irradiated moths were active in the field longer than their irradiated counterparts. In addition, anoxia‐conditioned moths were captured in traps that were farther away from the release site than unconditioned moths, suggesting greater dispersal. These data confirmed that beneficial plasticity induced by anoxia hormesis prior to irradiation led to lower postirradiation damage and increased flight performance and recapture duration under field conditions. We recommend greater consideration of beneficial plasticity responses in biological control programs and specifically the implementation of anoxia‐conditioning treatments applied prior to irradiation in area‐wide integrated pest management programs that use SIT. |
| first_indexed | 2024-12-22T19:38:12Z |
| format | Article |
| id | doaj.art-db65805d52074cdaa437be01327212b9 |
| institution | Directory Open Access Journal |
| issn | 1752-4571 |
| language | English |
| last_indexed | 2024-12-22T19:38:12Z |
| publishDate | 2021-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Evolutionary Applications |
| spelling | doaj.art-db65805d52074cdaa437be01327212b92022-12-21T18:14:56ZengWileyEvolutionary Applications1752-45712021-02-0114256657610.1111/eva.13141Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticityGiancarlo López‐Martínez0James E. Carpenter1Stephen D. Hight2Daniel A. Hahn3Department of Entomology and Nematology University of Florida Gainesville Florida USAUSDA‐ARS Crop Protection and Management Research Unit Tifton Georgia USAUSDA‐ARS Center for Medical, Agricultural, & Veterinary Entomology Tallahassee Florida USADepartment of Entomology and Nematology University of Florida Gainesville Florida USAAbstract As part of sterile insect technique (SIT) programs, irradiation can effectively induce sterility in insects by damaging germline genomic DNA. However, irradiation also induces other off‐target side effects that reduce the quality and performance of sterilized males, including the formation of damaging free radicals that can reduce sterile male performance. Thus, treatments that reduce off‐target effects of irradiation on male performance while maintaining sterility can improve the feasibility and economy of SIT programs. We previously found that inducing a form of rapid, beneficial plasticity with a 1‐hr anoxic‐conditioning period (physiological conditioning hormesis) prior to and during irradiation improves male field performance in the laboratory while maintaining sterility in males of the cactus moth, Cactoblastis cactorum. Here, we extend this work by testing the extent to which this beneficial plasticity may improve male field performance and longevity in the field. Based on capture rates after a series of mark release–recapture experiments, we found that anoxia‐conditioned irradiated moths were active in the field longer than their irradiated counterparts. In addition, anoxia‐conditioned moths were captured in traps that were farther away from the release site than unconditioned moths, suggesting greater dispersal. These data confirmed that beneficial plasticity induced by anoxia hormesis prior to irradiation led to lower postirradiation damage and increased flight performance and recapture duration under field conditions. We recommend greater consideration of beneficial plasticity responses in biological control programs and specifically the implementation of anoxia‐conditioning treatments applied prior to irradiation in area‐wide integrated pest management programs that use SIT.https://doi.org/10.1111/eva.13141anoxiahormesismodified atmospheressterile insect technique |
| spellingShingle | Giancarlo López‐Martínez James E. Carpenter Stephen D. Hight Daniel A. Hahn Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity Evolutionary Applications anoxia hormesis modified atmospheres sterile insect technique |
| title | Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity |
| title_full | Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity |
| title_fullStr | Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity |
| title_full_unstemmed | Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity |
| title_short | Low‐oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity |
| title_sort | low oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity |
| topic | anoxia hormesis modified atmospheres sterile insect technique |
| url | https://doi.org/10.1111/eva.13141 |
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