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Malod K, Bierman A, Karsten M, Manrakhan A, Weldon CW, Terblanche JS. Evidence for transient deleterious thermal acclimation in field recapture rates of an invasive tropical species, Bactrocera dorsalis (Diptera: Tephritidae). INSECT SCIENCE 2024. [PMID: 39126165 DOI: 10.1111/1744-7917.13435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/30/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024]
Abstract
Knowing how environmental conditions affect performance traits in pest insects is important to improve pest management strategies. It can be informative for monitoring, but also for control programs where insects are mass-reared, and field-released. Here, we investigated how adult thermal acclimation in sterile Bactrocera dorsalis affects dispersal and recapture rates in the field using a mark-release-recapture method. We also considered how current abiotic factors may affect recapture rates and interact with thermal history. We found that acclimation at 20 or 30 °C for 4 d prior to release reduced the number of recaptures in comparison with the 25 °C control group, but with no differences between groups in the willingness to disperse upon release. However, the deleterious effects of acclimation were only detectable in the first week following release, whereafter only the recent abiotic conditions explained recapture rates. In addition, we found that recent field conditions contributed more than thermal history to explain patterns of recaptures. The two most important variables affecting the number of recaptures were the maximum temperature and the average relative humidity experienced in the 24 h preceding trapping. Our results add to the handful of studies that have considered the effect of thermal acclimation on insect field performance, but notably lend support to the deleterious acclimation hypothesis among the various hypotheses that have been proposed. Finally, this study shows that there are specific abiotic conditions (cold/hot and dry) in which recaptures will be reduced, which may therefore bias estimates of wild population size.
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Affiliation(s)
- Kevin Malod
- Department of Conservation Ecology and Entomology, Stellenbosch University, Stellenbosch, South Africa
| | - Anandi Bierman
- Department of Conservation Ecology and Entomology, Stellenbosch University, Stellenbosch, South Africa
| | - Minette Karsten
- Department of Conservation Ecology and Entomology, Stellenbosch University, Stellenbosch, South Africa
| | - Aruna Manrakhan
- Department of Conservation Ecology and Entomology, Stellenbosch University, Stellenbosch, South Africa
- Citrus Research International, Mbombela, South Africa
| | - Christopher W Weldon
- Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - John S Terblanche
- Department of Conservation Ecology and Entomology, Stellenbosch University, Stellenbosch, South Africa
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2
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Wen J, Wang M, Zeng Y, He F, Li S, Zhang K, Weng Q. Verification of AKT and CDK5 Gene and RNA Interference Combined with Irradiation to Mediate Fertility Changes in Plutella xylostella (Linnaeus). Int J Mol Sci 2024; 25:4623. [PMID: 38731841 PMCID: PMC11082963 DOI: 10.3390/ijms25094623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
Plutella xylostella (Linnaeus) mainly damages cruciferous crops and causes huge economic losses. Presently, chemical pesticides dominate its control, but prolonged use has led to the development of high resistance. In contrast, the sterile insect technique provides a preventive and control method to avoid the development of resistance. We discovered two genes related to the reproduction of Plutella xylostella and investigated the efficacy of combining irradiation with RNA interference for pest management. The results demonstrate that after injecting PxAKT and PxCDK5, there was a significant decrease of 28.06% and 25.64% in egg production, and a decrease of 19.09% and 15.35% in the hatching rate compared to the control. The ratio of eupyrene sperm bundles to apyrene sperm bundles also decreased. PxAKT and PxCDK5 were identified as pivotal genes influencing male reproductive processes. We established a dose-response relationship for irradiation (0-200 Gy and 200-400 Gy) and derived the irradiation dose equivalent to RNA interference targeting PxAKT and PxCDK5. Combining RNA interference with low-dose irradiation achieved a sub-sterile effect on Plutella xylostella, surpassing either irradiation or RNA interference alone. This study enhances our understanding of the genes associated with the reproduction of Plutella xylostella and proposes a novel approach for pest management by combining irradiation and RNA interference.
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Affiliation(s)
- Jiaqi Wen
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; (J.W.); (M.W.); (Y.Z.); (F.H.); (S.L.)
| | - Mengran Wang
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; (J.W.); (M.W.); (Y.Z.); (F.H.); (S.L.)
| | - Yuhao Zeng
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; (J.W.); (M.W.); (Y.Z.); (F.H.); (S.L.)
| | - Fengting He
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; (J.W.); (M.W.); (Y.Z.); (F.H.); (S.L.)
| | - Shifan Li
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; (J.W.); (M.W.); (Y.Z.); (F.H.); (S.L.)
| | - Ke Zhang
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; (J.W.); (M.W.); (Y.Z.); (F.H.); (S.L.)
| | - Qunfang Weng
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China; (J.W.); (M.W.); (Y.Z.); (F.H.); (S.L.)
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
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3
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Nguyen TNM, Choo A, Baxter SW. Conservation of shibire and RpII215 temperature-sensitive lethal mutations between Drosophila and Bactrocera tryoni. FRONTIERS IN INSECT SCIENCE 2024; 4:1249103. [PMID: 38469341 PMCID: PMC10926519 DOI: 10.3389/finsc.2024.1249103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/31/2024] [Indexed: 03/13/2024]
Abstract
The sterile insect technique can suppress and eliminate population outbreaks of the Australian horticultural pest, Bactrocera tryoni, the Queensland fruit fly. Sterile males mate with wild females that produce inviable embryos, causing population suppression or elimination. Current sterile insect releases are mixed sex, as the efficient removal of unrequired factory-reared females is not yet possible. In this paper, we assessed the known Drosophila melanogaster temperature-sensitive embryonic lethal alleles shibire (G268D, shits1) and RNA polymerase II 215 (R977C, RpII215ts) for potential use in developing B. tryoni genetic sexing strains (GSS) for the conditional removal of females. Complementation tests in D. melanogaster wild-type or temperature-sensitive genetic backgrounds were performed using the GAL4-UAS transgene expression system. A B. tryoni wild-type shibire isoform partially rescued Drosophila temperature lethality at 29°C by improving survivorship to pupation, while expressing B. tryoni shits1 failed to rescue the lethality, supporting a temperature-sensitive phenotype. Expression of the B. tryoni RpII215 wild-type protein rescued the lethality of D. melanogaster RpII215ts flies at 29°C. Overexpressing the B. tryoni RpII215ts allele in the D. melanogaster wild-type background unexpectedly produced a dominant lethal phenotype at 29°C. The B. tryoni shibire and RpII215 wild-type alleles were able to compensate, to varying degrees, for the function of the D. melanogaster temperature-sensitive proteins, supporting functional conservation across species. Shibire and RpII215 hold potential for developing insect strains that can selectively kill using elevated temperatures; however, alleles with milder effects than shits1 will need to be considered.
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Affiliation(s)
- Thu N. M. Nguyen
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
| | - Amanda Choo
- School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Simon W. Baxter
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
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4
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Chu S, Liu B, Li H, Lu K, Lu Y. Effect of X-ray irradiation on the biological parameters of Xestia c-nigrum. Front Physiol 2024; 15:1362991. [PMID: 38449789 PMCID: PMC10915043 DOI: 10.3389/fphys.2024.1362991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/13/2024] [Indexed: 03/08/2024] Open
Abstract
The sterile insect technique (SIT) is widely used to control Lepidopteran pests by inducing inherited sterility. The noctuid moth Xestia c-nigrum is a polyphagous pest whose subterranean larvae severely injure cereals and some vegetables. The goals of this study were to assess the impact of X-ray irradiation on the development and survival of X. c-nigrum and use the data to select suitable sterilizing doses for potential future use in pest management. Batches of male pupae were exposed to 0 (control), 10, 30, 50, 100, 200, 300, or 400 Gy of X-rays, approximately 24 h before adult emergence. Exposure of late-stage pupae to 10-200 Gy of radiation had no significant effect on adult emergence, but all doses (10-400 Gy) reduced adult longevity, the number of spermatophores in mated females, and the number of eggs laid per female in the irradiated parental generation compared with the controls. Exposure to 10 and 30 Gy had no significant effects in the F1 generation on 1) the rate of egg hatch, 2) the duration of larval or pupal development, or 3) adult longevity. However, exposure to 50 Gy reduced the rate of egg hatch in the F1 generation, and when male pupae were exposed to 100 Gy only 1% of the F1 eggs hatched. Also at 100 Gy, the developmental durations of larvae and pupae were significantly prolonged, and longevity of adult moths was reduced. There were no significant differences between the control group and any treatments in 1) the sex ratio of the F1 adults, 2) the duration of F1 pre-oviposition or oviposition periods, or 3) the number of eggs laid per F1 female. Our findings indicate that a dose of 100 Gy can effectively slow pest development and reduce larval survival in the F1 generation. In addition, F1 adults from lines treated with 100 Gy were able to mate and lay eggs, but all F2 eggs failed to hatch. Our results suggest that use of X-ray irradiation has potential to control this polyphagous pest at the regional level.
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Affiliation(s)
- Shijiao Chu
- College of Agriculture, Shihezi University, Shihezi, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bing Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Huan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Keke Lu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yanhui Lu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
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5
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Hernández Elizárraga VH, Ballantyne S, O'Brien LG, Americo JA, Suhr ST, Senut MC, Minerich B, Merkes CM, Edwards TM, Klymus K, Richter CA, Waller DL, Passamaneck YJ, Rebelo MF, Gohl DM. Toward invasive mussel genetic biocontrol: Approaches, challenges, and perspectives. iScience 2023; 26:108027. [PMID: 37860763 PMCID: PMC10583111 DOI: 10.1016/j.isci.2023.108027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Abstract
Invasive freshwater mussels, such as the zebra (Dreissena polymorpha), quagga (Dreissena rostriformis bugensis), and golden (Limnoperna fortunei) mussel have spread outside their native ranges throughout many regions of the North American, South American, and European continents in recent decades, damaging infrastructure and the environment. This review describes ongoing efforts by multiple groups to develop genetic biocontrol methods for invasive mussels. First, we provide an overview of genetic biocontrol strategies that have been applied in other invasive or pest species. Next, we summarize physical and chemical methods that are currently in use for invasive mussel control. We then describe the multidisciplinary approaches our groups are employing to develop genetic biocontrol tools for invasive mussels. Finally, we discuss the challenges and limitations of applying genetic biocontrol tools to invasive mussels. Collectively, we aim to openly share information and combine expertise to develop practical tools to enable the management of invasive freshwater mussels.
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Affiliation(s)
| | - Scott Ballantyne
- Department of Biology, University of Wisconsin River Falls, River Falls, WI, USA
| | | | | | | | | | | | - Christopher M. Merkes
- U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, WI, USA
| | - Thea M. Edwards
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, USA
| | - Katy Klymus
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, USA
| | - Catherine A. Richter
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, USA
| | - Diane L. Waller
- U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, WI, USA
| | - Yale J. Passamaneck
- Bureau of Reclamation, Technical Service Center, Hydraulic Investigations and Laboratory Services, Ecological Research Laboratory, Denver, CO, USA
| | - Mauro F. Rebelo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daryl M. Gohl
- University of Minnesota Genomics Center, Minneapolis, MN, USA
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN, USA
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6
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Cruces MP, Pimentel E, Vidal LM, Jiménez E, Suárez H, Camps E, Campos-González E. Genotoxic action of bifenthrin nanoparticles and its effect on the development, productivity, and behavior of Drosophila melanogaster. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2023; 86:661-677. [PMID: 37477220 DOI: 10.1080/15287394.2023.2234408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Rapid development of nanotechnology, particularly nanoparticles of pesticides, has facilitated the transformation of traditional agriculture. However, testing their effectiveness is essential for avoiding any environmental or adverse human health risk attributed to nanoparticle-based formulations, especially insecticides. Recently, organic nanoparticles of bifenthrin, a pyrethroid insecticide, were successfully synthesized by laser ablation of solids in liquid technique, with the most probable size of 5 nm. The aim of the present study was to examine the effects of acute exposure to bifenthrin (BIF) or bifenthrin nanoparticles (BIFNP) on larval-adult viability, developmental time, olfactory capacity, longevity, productivity defined as the number of eggs per couple, and genotoxicity in Drosophila melanogaster. Data demonstrated that BIFNP produced a marked delay in developmental time, significant reduction in viability and olfactory ability compared to BIF. No marked differences were detected between BIF and BIFNP on longevity and productivity. Genotoxicity findings indicated that only BIF, at longer exposure duration increased genetic damage.
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Affiliation(s)
- Martha P Cruces
- Departamento de Biología, Instituto Nacional de Investigaciones Nucleares (ININ), Ocoyoacac, México
| | - Emilio Pimentel
- Departamento de Biología, Instituto Nacional de Investigaciones Nucleares (ININ), Ocoyoacac, México
| | - Luz M Vidal
- Departamento de Biología, Instituto Nacional de Investigaciones Nucleares (ININ), Ocoyoacac, México
| | - Elizabeth Jiménez
- Facultad de Ciencias, Universidad Autónoma Del Estado de México, Toluca, México
| | - Hugo Suárez
- Departamento de Biología, Instituto Nacional de Investigaciones Nucleares (ININ), Ocoyoacac, México
| | - Enrique Camps
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares (ININ), Ocoyoacac, México
| | - Enrique Campos-González
- CONACYT-Departamento de física, Instituto Nacional de Investigaciones Nucleares (ININ), Ocoyoacac, México
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7
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Pospíšilová K, Van't Hof AE, Yoshido A, Kružíková R, Visser S, Zrzavá M, Bobryshava K, Dalíková M, Marec F. Masculinizer gene controls male sex determination in the codling moth, Cydia pomonella. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2023; 160:103991. [PMID: 37536576 DOI: 10.1016/j.ibmb.2023.103991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/13/2023] [Accepted: 07/29/2023] [Indexed: 08/05/2023]
Abstract
The molecular mechanisms of sex determination in moths and butterflies (Lepidoptera) with female heterogamety (WZ/ZZ) are poorly understood, except in the silkworm Bombyx mori. However, the Masculinizer (Masc) gene that controls male development and dosage compensation in B. mori, appears to be conserved in Lepidoptera, as its masculinizing function was recently confirmed in several moth species. In this work, we investigated the role of the Masc gene in sex determination of the codling moth Cydia pomonella (Tortricidae), a globally important pest of pome fruits and walnuts. The gene structure of the C. pomonella Masc ortholog, CpMasc, is similar to B. mori Masc. However, unlike B. mori, we identified 14 splice variants of CpMasc in the available transcriptomes. Subsequent screening for sex specificity and genetic variation using publicly available data and RT-PCR revealed three male-specific splice variants. Then qPCR analysis of these variants revealed sex-biased expression showing a peak only in early male embryos. Knockdown of CpMasc by RNAi during early embryogenesis resulted in a shift from male-to female-specific splicing of the C. pomonella doublesex (Cpdsx) gene, its downstream effector, in ZZ embryos, leading to a strongly female-biased sex ratio. These data clearly demonstrate that CpMasc functions as a masculinizing gene in the sex-determining cascade of C. pomonella. Our study also showed that CpMasc transcripts are provided maternally, as they were detected in unfertilized eggs after oviposition and in mature eggs dissected from virgin females. This finding is unique, as maternal provision of mRNA has rarely been studied in Lepidoptera.
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Affiliation(s)
- Kristýna Pospíšilová
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, 370 05, České Budějovice, Czech Republic; Faculty of Science, University of South Bohemia, 370 05, České Budějovice, Czech Republic.
| | - Arjen E Van't Hof
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, 370 05, České Budějovice, Czech Republic.
| | - Atsuo Yoshido
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, 370 05, České Budějovice, Czech Republic.
| | - Renata Kružíková
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, 370 05, České Budějovice, Czech Republic; Faculty of Science, University of South Bohemia, 370 05, České Budějovice, Czech Republic.
| | - Sander Visser
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, 370 05, České Budějovice, Czech Republic; School of Science and Engineering, University of Groningen, 9700 CC, Groningen, the Netherlands.
| | - Magda Zrzavá
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, 370 05, České Budějovice, Czech Republic; Faculty of Science, University of South Bohemia, 370 05, České Budějovice, Czech Republic.
| | - Kseniya Bobryshava
- Faculty of Science, University of South Bohemia, 370 05, České Budějovice, Czech Republic.
| | - Martina Dalíková
- Faculty of Science, University of South Bohemia, 370 05, České Budějovice, Czech Republic; Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, 66045, USA.
| | - František Marec
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, 370 05, České Budějovice, Czech Republic.
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Seth RK, Yadav P, Reynolds SE. Dichotomous sperm in Lepidopteran insects: a biorational target for pest management. FRONTIERS IN INSECT SCIENCE 2023; 3:1198252. [PMID: 38469506 PMCID: PMC10926456 DOI: 10.3389/finsc.2023.1198252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/31/2023] [Indexed: 03/13/2024]
Abstract
Lepidoptera are unusual in possessing two distinct kinds of sperm, regular nucleated (eupyrene) sperm and anucleate (apyrene) sperm ('parasperm'). Sperm of both types are transferred to the female and are required for male fertility. Apyrene sperm play 'helper' roles, assisting eupyrene sperm to gain access to unfertilized eggs and influencing the reproductive behavior of mated female moths. Sperm development and behavior are promising targets for environmentally safer, target-specific biorational control strategies in lepidopteran pest insects. Sperm dimorphism provides a wide window in which to manipulate sperm functionality and dynamics, thereby impairing the reproductive fitness of pest species. Opportunities to interfere with spermatozoa are available not only while sperm are still in the male (before copulation), but also in the female (after copulation, when sperm are still in the male-provided spermatophore, or during storage in the female's spermatheca). Biomolecular technologies like RNAi, miRNAs and CRISPR-Cas9 are promising strategies to achieve lepidopteran pest control by targeting genes directly or indirectly involved in dichotomous sperm production, function, or persistence.
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Affiliation(s)
- Rakesh K. Seth
- Department of Zoology, University of Delhi, Delhi, India
| | - Priya Yadav
- Department of Zoology, University of Delhi, Delhi, India
| | - Stuart E. Reynolds
- Department of Life Sciences, University of Bath, Bath, United Kingdom
- Milner Centre for Evolution, University of Bath, Bath, United Kingdom
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9
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Cancino J, Montoya P, Gálvez FO, Gálvez C, Liedo P. Effect of the Sterile Insect Technique and Augmentative Parasitoid Releases in a Fruit Fly Suppression Program in Mango-Producing Areas of Southeast Mexico. INSECTS 2023; 14:719. [PMID: 37754687 PMCID: PMC10532135 DOI: 10.3390/insects14090719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/21/2023] [Accepted: 07/27/2023] [Indexed: 09/28/2023]
Abstract
The Sterile Insect Technique (SIT), by means of sterile male releases of Anastrepha ludens (Loew), coupled with Augmentative Biological Control (ABC), by releasing the parasitoid Diachasmimorpha longicaudata (Ashmead), was evaluated in a commercial mango production area for one year. The obtained results were compared with mean fruit fly population values from two previous years without the combined use of both techniques. The treatments were: SIT + ABC, SIT, ABC, and Control, and each treatment was established in blocks of 5000 Ha separated by distances of 5-10 km. The evaluations were carried out through fruit sampling to assess percent parasitism and trapping of adult flies to obtain Flies per Trap per Day (FTD) values. The mean percentage of parasitism increased from 0.59% in the control treatment to 19.38% in the block with ABC. The FTD values decreased from ~0.129 and ~0.012 in the control block to 0.0021 in the block with SIT and ABC, representing a 98% suppression. The difference between the two periods in the control block was not significant. We conclude that the integration of both techniques resulted in an additive suppression of the pest population, supporting the use of both control techniques in an area-wide pest management context.
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Affiliation(s)
- Jorge Cancino
- Programa Moscas de la Fruta SENASICA-SADER, Camino a los Cacaoatales S/N, Metapa de Domínguez 30860, Chiapas, Mexico
| | - Pablo Montoya
- Instituto de Biociencias, Universidad Autónoma de Chiapas, Boulevard Akichino S/N, Tapachula 30798, Chiapas, Mexico;
| | - Fredy Orlando Gálvez
- Comité Estatal de Sanidad Vegetal de Chiapas (CESAVECHIS) SENASICA-SADER 4a Calle Oriente, entre 1a y 3a Sur, Tapachula 30830, Chiapas, Mexico;
| | - Cesar Gálvez
- Departamento de Control Biológico (CNRCB), SADER-SENASICA-DGSV, Km. 1.5 Carretera Tecomán Estación FFCC, Tecomán 28110, Colima, Mexico;
| | - Pablo Liedo
- El Colegio de la Frontera Sur (ECOSUR), Carretera Antiguo Aeropuerto Km. 2.5, Tapachula 30700, Chiapas, Mexico;
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10
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Zhang J, Huang S, Zhao S, Wang X, Yang X, Zhao H, Gao P, Li Y, Yang X. The Effect of X-ray Irradiation on the Fitness and Field Adaptability of the Codling Moth: An Orchard Study in Northeast China. INSECTS 2023; 14:615. [PMID: 37504621 PMCID: PMC10380233 DOI: 10.3390/insects14070615] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023]
Abstract
The codling moth, Cydia pomonella (L.), is an invasive agricultural pest of pome fruits and walnuts in China that threatens the apple industry in the Loess Plateau and Bohai Bay; it has developed resistance to many insecticides. Sterile insect technique (SIT) combined with area-wide integrated pest management (AW-IPM) can reduce the risk of resistance to insecticides and effectively control some insect pest species. Our previous laboratory experiment found that irradiation with 366 Gy of X-ray caused the males of the codling moth to become sterile. However, the sterility and adaptability of males after being irradiated with 366 Gy X-ray in the field are still unclear. In this study, we investigated the effect of X-ray irradiation on the fitness of male adults that emerged from pupae irradiated with 366 Gy to explore their adaptability and mating competitiveness, and to examine the effect of releasing sterile male insects in orchards in northeast China on the fruit infestation rate of the Nanguo pear. The results showed that 366 Gy of X-ray irradiation significantly reduced the mating competitiveness of males and the hatching rate of the eggs laid by females pairing with sterile males. Meanwhile, the lifespan of the sterile male moths was significantly shorter than that of the normal ones in the field. A pilot test showed that the release twice of sterile male moths in the orchards had no significant effect on the fruit infestation rate. Our field experiments provide a scientific basis for the further optimization of the SIT technology program for controlling C. pomonella.
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Affiliation(s)
- Jinghan Zhang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China
| | - Shengwang Huang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China
| | - Shici Zhao
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China
| | - Xingya Wang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China
| | - Xianming Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huiyuan Zhao
- Hebi Jiaduoke Industry and Trade Co., Ltd., Hebi 458030, China
| | - Ping Gao
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China
| | - Yuting Li
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China
| | - Xueqing Yang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Economical and Applied Entomology of Liaoning Province, Shenyang 110866, China
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Hasan MM, Hossain MA, Athanassiou CG. Improved Quality Management of the Indian Meal Moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) for Enhanced Efficacy of the Sterile Insect Technique. INSECTS 2023; 14:344. [PMID: 37103161 PMCID: PMC10144046 DOI: 10.3390/insects14040344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/19/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
The sterile insect technique (SIT) is considered an environmentally friendly, autocidal control tactic to manage insect pests. This work dealt with the improvement of quality management of the Indian meal moth Plodia interpunctella (Hübner) for enhanced efficacy of the SIT. The results indicated that egg hatching of irradiated mature eggs of P. interpunctella was higher than that of younger eggs, indicating that mature eggs were significantly more tolerant than younger eggs. Moreover, our data revealed that a dose of 500 Gy completely prevented pupal formation in irradiated young and mature larvae. Crosses between irradiated and non-irradiated adults resulted in considerable variations in fecundity. The mating competitiveness index (CI) value was higher for a ratio of 5:1:1 (sterile male, fertile male, and fertile female, respectively) as compared with the ratio 1:1:1 for the irradiated individuals of all life stages. Low temperature (5 °C) maintenance of irradiated pupae significantly affected adult emergence. Using cylinders to assess flight ability, we found that the flight performance of adults that were developed from cold treated irradiated pupae was influenced by cylinder diameter, cylinder height and the number of hours the insects were in the cylinders. The percentage of DNA damage of the reproductive organs of adults developed from cold treated pupae that were irradiated with 100 and 150 Gy varied significantly. The results of this study should be used to implement pilot-scale field tests aiming at a sterile- to-fertile male ratio of 5 to 1.
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Affiliation(s)
- Md. Mahbub Hasan
- Department of Zoology, Rajshahi University, Rajshahi 6205, Bangladesh
| | | | - Christos G. Athanassiou
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou Str., 38446 Volos, Greece
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12
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Saour G, Hashem A, Jassem I. Mating Competitiveness of Irradiated Lobesia botrana (Lepidoptera: Tortricidae) in Male-Only and Both Sex Release Strategies under Laboratory Cage Conditions. INSECTS 2022; 14:18. [PMID: 36661945 PMCID: PMC9861676 DOI: 10.3390/insects14010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
This laboratory study explored the concept of whether irradiated male-only releases are more or equally efficient as releases of both irradiated males and females in the context of using the sterile insect technique/inherited sterility (SIT/IS) for the management of the European grapevine moth Lobesia botrana. The current study examined the mating competitiveness of 150-Gy-treated L. botrana male and female moths or 150-Gy-treated male moths only, with untreated moths in laboratory cages. Our results showed that the release of both sexes significantly increased the competitiveness value (C) and the biological efficiency index (BE) as compared with male-only release, and this was independent of the male to untreated male ratio. Moreover, a single release of 150-Gy-treated and untreated males and females at a 1:1:10:10 ratio (untreated male:untreated female: treated male:treated female) significantly reduced egg hatch, and the number of first-generation offspring (F1) was small. The emergence of F2-moths per untreated F1 male and female moth was low, but these undesired fertile moths should be eliminated in order to achieve effective control. The results presented herein provide useful information on the impact of 150-Gy-treated male-only, versus releases of both treated males and females on untreated moths, which is essential to managing L. botrana populations with SIT/IS.
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Sengupta M, Vimal N, Angmo N, Seth RK. Effect of Irradiation on Reproduction of Female Spodoptera litura (Fabr.) (Lepidoptera: Noctuidae) in Relation to the Inherited Sterility Technique. INSECTS 2022; 13:898. [PMID: 36292846 PMCID: PMC9604188 DOI: 10.3390/insects13100898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/24/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Radiobiological investigations on the reproductive behavior of female Spodoptera litura (Fabr.) were conducted with the aim of determining the suitable radio-sterilizing dose for females in order to release them along with sub-sterile males for effective implementation of the Inherited Sterility technique against this pest. Calling and copulation duration significantly increased, while mating success, oviposition, fertility and longevity significantly decreased with increasing radiation dose (100-200 Gy) compared to control. In view of the effect of irradiation on mating behavior and reproductive viability of female S. litura, 130 Gy was identified as a suitable radio-sterilization dose. Further molecular studies were conducted to corroborate this dose for female sterilization, along with a higher dose of 200 Gy in order to validate the gradational response of ionizing radiation. GC-MS analysis indicated decreased sex pheromone titer at 130 Gy, which was more pronounced at 200 Gy. Pheromone-associated genes, PBAN and PBAN-R showed decreased expression at 130 Gy, and were drastically reduced at 200 Gy. The fertility-related Vg gene also showed a negative correlation with radiation exposure. Based on these radiation responses of female S. litura, 130 Gy might be considered a suitable dose for complete female sterility and its inclusion in sterile insect programs against S. litura.
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14
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Su S, Zhang X, Zhang J, Huang B, Jian C, Peng X, Vreysen MJB, Chen M. Flight Performance, Fecundity, and Ovary Development of Grapholita molesta (Lepidoptera: Torticidae) at Different Ages. INSECTS 2022; 13:837. [PMID: 36135538 PMCID: PMC9501558 DOI: 10.3390/insects13090837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Grapholita molesta is one of the most serious pests in fruits orchards. Flight performance of male insects and fecundity of female insects are important quality control parameters when moths are mass-reared for use in environment-friendly control strategies such as the sterile insect technique (SIT). However, information about flight performance, fecundity, and ovary development of G. molesta at different ages is scarce. In this study, we used a flight mill information system to measure the flight ability of female and male adults of G. molesta at different ages, and evaluated fecundity and ovarian development of female adults at different ages. The results demonstrated that the flight parameters (cumulative flight distance, cumulative flight time, maximum flight distance and maximum flight duration) of female and male G. molesta varied with age. Six-day-old female moths and three-day-old male moths were the strongest fliers, whereas the fecundity of one-day and two-day-old female moths was significantly lower than that of three to seven-day-old females. Five-day-old females had the highest fecundity. Their ovaries demonstrated mature eggs in the lateral and middle oviducts as of the third day post-emergence. It is suggested that the optimal age for moths to be released in SIT programs is three days, and moths older three days can be used for mass-rearing in a factory.
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Affiliation(s)
- Sha Su
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Xianyang 712100, China
| | - Xiaohe Zhang
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Xianyang 712100, China
| | - Jilong Zhang
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Xianyang 712100, China
| | - Baojian Huang
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Xianyang 712100, China
| | - Chengzhi Jian
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Xianyang 712100, China
| | - Xiong Peng
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Xianyang 712100, China
| | - Marc J. B. Vreysen
- Joint FAO/IAEA Programme, Entomology Unit, FAO/IAEA Agriculture & Biotechnology Laboratory, International Atomic Energy Agency, A-2444 Vienna, Austria
| | - Maohua Chen
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Xianyang 712100, China
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Singh Brar G, Singh S, Nath Shukla J, Kumar V, Emyr Davies TG, Kaur G, Pandher S, Kaur R. doublesex homolog is sex-specifically spliced and governs the sexual differentiation process in the whitefly Bemisia tabaci biotype AsiaII-1. Gene 2022; 850:146929. [DOI: 10.1016/j.gene.2022.146929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 10/14/2022]
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Su S, Zhang X, Jian C, Huang B, Peng X, Vreysen MJB, Chen M. Effects of Adult Feeding Treatments on Longevity, Fecundity, Flight Ability, and Energy Metabolism Enzymes of Grapholita molesta Moths. INSECTS 2022; 13:725. [PMID: 36005349 PMCID: PMC9409247 DOI: 10.3390/insects13080725] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
The oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae) is one of the most severe fruit tree pests in China, causing huge economic losses to fruit production. So far, there are few detailed reports on the rearing protocols of G. molesta. In this study, we compared the longevity, 10-d fecundity, flight ability, and the activity of major energy metabolism enzymes in the flight muscles of G. molesta under three feeding regimes (supplement with sterile water, supplement with 10% honey solution and starvation) of the adult moths. The results showed that the longevity, 10-d fecundity, and flight parameters (cumulative flight distance and time, maximum flight distance and duration, and the average flight speed) of adult moths when supplemented with sterile water or honey solution were significantly higher than those of moths that were starved. There were no significant differences in the 10-d fecundity, flight parameters, and the activity of major energy metabolism enzymes of flight muscles between moths that were supplemented with sterile water or 10% honey solution. The flight muscles of G. molesta mainly used carbohydrates as an energy source when sterile water and honey solution were supplemented, and the moth mainly used lipids as an energy source under starvation. Considering the cost and potential for diet contamination during mass-rearing, supplying sterile water is considered a cost effective option for food substitution of adult G. molesta.
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Affiliation(s)
- Sha Su
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
| | - Xiaohe Zhang
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
| | - Chengzhi Jian
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
| | - Baojian Huang
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
| | - Xiong Peng
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
| | - Marc J. B. Vreysen
- Joint FAO/IAEA Programme, Entomology Unit, FAO/IAEA Agriculture & Biotechnology Laboratory, International Atomic Energy Agency, A-2444 Vienna, Austria
| | - Maohua Chen
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China
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Saour G, Hashem A, Jassem I. Reproductive Behaviour of 150-Gy-Treated Female Lobesia botrana (Lepidoptera: Tortricidae). INSECTS 2022; 13:insects13070600. [PMID: 35886776 PMCID: PMC9323941 DOI: 10.3390/insects13070600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/19/2022] [Accepted: 06/23/2022] [Indexed: 02/01/2023]
Abstract
Simple Summary Environment-friendly and sustainable insect pest control approaches such as the sterile insect technique/inherited sterility (SIT/IS) have been proposed against the European grapevine moth Lobesia botrana. Reproductive behaviour, such as oviposition, mating ability, and multiple mating of 150 Gy-treated females, was studied. Moreover, the last-male sperm precedence (P2 value) and male’s flight response to treated females were also investigated. The present study aims to provide basic information which is essential to ensure successful implementation of SIT/IS as part of an integrated approach for the management of L. botrana. Abstract The sterile insect technique/inherited sterility (SIT/IS) has been suggested as an eco-friendly control tactic for area-wide integrated pest management approaches in order to control the European grapevine moth, Lobesia botrana. This study assessed the effects of an irradiation dose of 150 Gy administered to newly emerged female moths on their egg laying behaviour and mating ability at different ages at mating. Moreover, the effects of multiple mating on the mating ability of treated females, pattern of sperm precedence in twice-mated females and the flight response of treated and untreated males to treated and untreated calling females were also investigated. Females treated with 150 Gy initiated calling in a way similar to untreated females. When treated females were paired with untreated males, the mean number of eggs oviposited per female during 6 days was reduced (59.6 and 82.8 eggs/female, respectively), as was their mating ability and multiple mating compared with untreated females. The proportion of offspring fertilized by the second of the two males to mate with the female or last-male sperm precedence (P2 value) constituted 97% of the eggs, suggesting that the second male mate fathered the most offspring. The outcome of this work could be viewed as an integrated approach for improving effectiveness and enabling successful implementation of a SIT/IS program against L. botrana.
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Li AM, He WZ, Wei JL, Chen ZL, Liao F, Qin CX, Pan YQ, Shang XK, Lakshmanan P, Wang M, Tan HW, Huang DL. Transcriptome Profiling Reveals Genes Related to Sex Determination and Differentiation in Sugarcane Borer (Chilo sacchariphagus Bojer). INSECTS 2022; 13:insects13060500. [PMID: 35735837 PMCID: PMC9225334 DOI: 10.3390/insects13060500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 01/27/2023]
Abstract
Simple Summary Chilo sacchariphagus Bojer is an important sugarcane pest globally. The identification of key genes associated with sex determination and differentiation will provide important basic information for the sterile insect technique control strategy. In this study, the comparative transcriptomic analysis of female and male adults revealed sex-biased gene expression, indicating putative genetic elements of sex determination and differentiation in this species. Abstract Chilo sacchariphagus Bojer is an important sugarcane pest globally. Along with genetic modification strategies, the sterile insect technique (SIT) has gained more attention as an environment-friendly method for pest control. The identification of key genes associated with sex determination and differentiation will provide important basic information for this control strategy. As such, the transcriptome sequencing of female and male adults was conducted in order to understand the sex-biased gene expression and molecular basis of sex determination and differentiation in this species. A total of 60,429 unigenes were obtained; among them, 34,847 genes were annotated. Furthermore, 11,121 deferentially expressed genes (DEGs) were identified, of which 8986 were male-biased and 2135 were female-biased genes. The male-biased genes were enriched for carbon metabolism, peptidase activity and transmembrane transport, while the female-biased genes were enriched for the cell cycle, DNA replication, and the MAPK signaling pathway. In addition, 102 genes related to sex-determination and differentiation were identified, including the protein toll, ejaculatory bulb-specific protein, fruitless, transformer-2, sex-lethal, beta-Catenin, sox, gata4, beta-tubulin, cytosol aminopeptidase, seminal fluid, and wnt4. Furthermore, transcription factors such as myb, bhlh and homeobox were also found to be potentially related to sex determination and differentiation in this species. Our data provide new insights into the genetic elements associated with sex determination and differentiation in Chilo sacchariphagus, and identified potential candidate genes to develop pest-control strategies.
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Affiliation(s)
- Ao-Mei Li
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Wei-Zhong He
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Ji-Li Wei
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Zhong-Liang Chen
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Fen Liao
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Cui-Xian Qin
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - You-Qiang Pan
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Xian-Kun Shang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Prakash Lakshmanan
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, Chongqing 400716, China
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St. Lucia, QLD 4067, Australia
| | - Miao Wang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Hong-Wei Tan
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
- Correspondence: (H.-W.T.); (D.-L.H.)
| | - Dong-Liang Huang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China; (A.-M.L.); (W.-Z.H.); (J.-L.W.); (Z.-L.C.); (F.L.); (C.-X.Q.); (Y.-Q.P.); (X.-K.S.); (P.L.); (M.W.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning 530007, China
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
- Correspondence: (H.-W.T.); (D.-L.H.)
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Xu X, Chen J, Du X, Yao L, Wang Y. CRISPR/Cas9 Mediated Disruption of Seminal Fluid Protein Sfp62 Induces Male Sterility in Bombyx mori. BIOLOGY 2022; 11:biology11040561. [PMID: 35453761 PMCID: PMC9024854 DOI: 10.3390/biology11040561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 11/25/2022]
Abstract
Simple Summary In gamogenetic animals, seminal fluid proteins are essential for male fertility. In this study, we investigated the function of the seminal fluid protein Sfp62 by using the CRISPR/Cas9 system in lepidopteran model insect Bombyx mori. Sfp62 mutation led to male sterility and can be inherited stably. The mutation did not affect growth and developmental nor female fertility. These data indicate that Sfp62 is an ideal target for sterile insect technology (SIT), in which genetically modified insects are released on a large scale to mate with wild-type insects in order to reduce or even eradicate the target pests. The determining factors for the effective implementation of SIT include the strong competitiveness of the modified individuals and multi-generational effects resulting from the mutation. Sfp62 meets these criteria and is therefore a promising target for biological pest control. Abstract Seminal fluid proteins provide factors necessary for development, storage, and activation of sperm. Altered expression of seminal fluid proteins can lead to defect in male infertility. We investigated the function of seminal fluid protein Sfp62 in the model lepidopteran insect Bombyx mori using CRISPR/Cas9 mediated mutagenesis. The knockout of BmSfp62 gene led to male sterility but has no effect on female fertility. The mutation did not affect growth and development of the silkworm of both sexes. Motility of sperm in male mutants was decreased and the mRNA expression levels of other genes encoding seminal fluid proteins were altered in BmSfp62 mutants compared to the wild-type controls. The male sterility caused by mutation of BmSfp62 was stably inherited. As the proteins encoded by Sfp62 genes are conserved among lepidopteran species, Sfp62 is a potential target for the biological management of lepidopteran pests.
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Yang D, Xu J, Chen K, Liu Y, Yang X, Tang L, Luo X, Liu Z, Li M, Walters JR, Huang Y. BmPMFBP1 regulates the development of eupyrene sperm in the silkworm, Bombyx mori. PLoS Genet 2022; 18:e1010131. [PMID: 35312700 PMCID: PMC8970482 DOI: 10.1371/journal.pgen.1010131] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 03/31/2022] [Accepted: 03/02/2022] [Indexed: 11/18/2022] Open
Abstract
Sperm deliver the male complement of DNA to the ovum, and thus play a key role in sexual reproduction. Accordingly, spermatogenesis has outstanding significance in fields as disparate as infertility treatments and pest-control, making it a broadly interesting and important focus for molecular genetics research in a wide range of species. Here we investigate spermatogenesis in the model lepidopteran insect Bombyx mori (silkworm moth), with particular focus on the gene PMFBP1 (polyamine modulated factor 1 binding protein 1). In humans and mouse, PMFBP1 is essential for spermatogenesis, and mutations of this gene are associated with acephalic spermatozoa, which cause infertility. We identified a B. mori gene labeled as “PMFBP1” in GenBank’s RefSeq database and sought to assess its role in spermatogenesis. Like in mammals, the silkworm version of this gene (BmPMFBP1) is specifically expressed in testes. We subsequently generated BmPMFBP1 mutants using a transgenic CRISPR/Cas9 system. Mutant males were sterile while the fertility of mutant females was comparable to wildtype females. In B. mori, spermatogenesis yields two types of sperm, the nucleated fertile eupyrene sperm, and anucleated unfertile apyrene sperm. Mutant males produced abnormal eupyrene sperm bundles but normal apyrene sperm bundles. For eupyrene sperm, nuclei were mislocated and disordered inside the bundles. We also found the BmPMFBP1 deficiency blocked the release of eupyrene sperm bundles from testes to ejaculatory seminalis. We found no obvious abnormalities in the production of apyrene sperm in mutant males, and double-matings with apyrene-deficient sex-lethal mutants rescued the ΔBmPMFBP1 infertility phenotype. These results indicate BmPMFBP1 functions only in eupyrene spermatogenesis, and highlight that distinct genes underlie the development of the two sperm morphs commonly found in Lepidoptera. Bioinformatic analyses suggest PMFBP1 may have evolved independently in lepidoptera and mammals, and that despite the shared name, are likely not homologous genes. The presence of nucleated and anucleated dimorphic sperm produced by a single male is a notable characteristic of lepidopteran insects. Previously we identified the gene BmSxl and BmPnldc1 are required for apyrene and eupyrene sperm development, respectively. However, there remains very little known about the molecular mechanism of eupyrene and apyrene sperm development and function. In human and mouse, the protein PMFBP1 is related to acephalic spermatozoa syndrome. Here, we generate somatic mutants in the silkworm Bombyx mori for this gene. In the silkworm, BmPMFBP1 is essential for male fertility. Loss of BmPMFBP1 function results in defective eupyrene sperm bundles in the early elongation stage of spermatogenesis. The nuclei of the eupyrene sperm bundles were displaced from sperm heads while the apyrene sperm bundles were normal. This deficiency also results in the failure of the release of eupyrene sperm bundles from testes to the ejaculatory seminalis duct. Our study proves the important function of BmPMFBP1 in the development of the eupyrene sperm in the silkworm and identifies a potential target gene for lepidopteran pest control.
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Affiliation(s)
- Dehong Yang
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Jun Xu
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Kai Chen
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Yujia Liu
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Xu Yang
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Linmeng Tang
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Xingyu Luo
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Zulian Liu
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Muwang Li
- Jiangsu University of Science and Technology, Zhenjiang, China
| | - James R. Walters
- Department of Ecology & Evolution, University of Kansas, Lawrence, Kansas, United States of America
- * E-mail: (JRW); (YH)
| | - Yongping Huang
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
- * E-mail: (JRW); (YH)
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21
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Gamez S, Chaverra-Rodriguez D, Buchman A, Kandul NP, Mendez-Sanchez SC, Bennett JB, Sánchez C HM, Yang T, Antoshechkin I, Duque JE, Papathanos PA, Marshall JM, Akbari OS. Exploiting a Y chromosome-linked Cas9 for sex selection and gene drive. Nat Commun 2021; 12:7202. [PMID: 34893590 PMCID: PMC8664916 DOI: 10.1038/s41467-021-27333-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/03/2021] [Indexed: 02/06/2023] Open
Abstract
CRISPR-based genetic engineering tools aimed to bias sex ratios, or drive effector genes into animal populations, often integrate the transgenes into autosomal chromosomes. However, in species with heterogametic sex chromsomes (e.g. XY, ZW), sex linkage of endonucleases could be beneficial to drive the expression in a sex-specific manner to produce genetic sexing systems, sex ratio distorters, or even sex-specific gene drives, for example. To explore this possibility, here we develop a transgenic line of Drosophila melanogaster expressing Cas9 from the Y chromosome. We functionally characterize the utility of this strain for both sex selection and gene drive finding it to be quite effective. To explore its utility for population control, we built mathematical models illustrating its dynamics as compared to other state-of-the-art systems designed for both population modification and suppression. Taken together, our results contribute to the development of current CRISPR genetic control tools and demonstrate the utility of using sex-linked Cas9 strains for genetic control of animals.
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Affiliation(s)
- Stephanie Gamez
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
- Agragene Inc., San Diego, CA, 92121, USA
| | - Duverney Chaverra-Rodriguez
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Anna Buchman
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
- Verily Life Sciences, South San Francisco, CA, 94080, USA
| | - Nikolay P Kandul
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Stelia C Mendez-Sanchez
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
- Group for Research in Biochemistry and Microbiology (Grupo de Investigación en Bioquímica Y Microbiología-GIBIM), School of Chemistry, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Jared B Bennett
- Biophysics Graduate Group, University of California, Berkeley, CA, 94720, USA
- Divisions of Epidemiology & Biostatistics, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Héctor M Sánchez C
- Divisions of Epidemiology & Biostatistics, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Ting Yang
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Igor Antoshechkin
- Division of Biology and Biological Engineering (BBE), California Institute of Technology, Pasadena, CA, 91125, USA
| | - Jonny E Duque
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
- Centro de Investigaciones en Enfermedades Tropicales - CINTROP, Facultad de Salud, Escuela de Medicina, Departamento de Ciencias Básicas, Universidad Industrial de Santander, Piedecuesta, Santander, Colombia
| | - Philippos A Papathanos
- Department of Entomology, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, 7610001, Israel
| | - John M Marshall
- Divisions of Epidemiology & Biostatistics, School of Public Health, University of California, Berkeley, CA, 94720, USA
- Innovative Genomics Institute, University of California, Berkeley, CA, 94720, USA
| | - Omar S Akbari
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA.
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22
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Tait G, Mermer S, Stockton D, Lee J, Avosani S, Abrieux A, Anfora G, Beers E, Biondi A, Burrack H, Cha D, Chiu JC, Choi MY, Cloonan K, Crava CM, Daane KM, Dalton DT, Diepenbrock L, Fanning P, Ganjisaffar F, Gómez MI, Gut L, Grassi A, Hamby K, Hoelmer KA, Ioriatti C, Isaacs R, Klick J, Kraft L, Loeb G, Rossi-Stacconi MV, Nieri R, Pfab F, Puppato S, Rendon D, Renkema J, Rodriguez-Saona C, Rogers M, Sassù F, Schöneberg T, Scott MJ, Seagraves M, Sial A, Van Timmeren S, Wallingford A, Wang X, Yeh DA, Zalom FG, Walton VM. Drosophila suzukii (Diptera: Drosophilidae): A Decade of Research Towards a Sustainable Integrated Pest Management Program. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:1950-1974. [PMID: 34516634 DOI: 10.1093/jee/toab158] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Indexed: 05/17/2023]
Abstract
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) also known as spotted-wing drosophila (SWD), is a pest native to Southeast Asia. In the last few decades, the pest has expanded its range to affect all major European and American fruit production regions. SWD is a highly adaptive insect that is able to disperse, survive, and flourish under a range of environmental conditions. Infestation by SWD generates both direct and indirect economic impacts through yield losses, shorter shelf life of infested fruit, and increased production costs. Fresh markets, frozen berries, and fruit export programs have been impacted by the pest due to zero tolerance for fruit infestation. As SWD control programs rely heavily on insecticides, exceedance of maximum residue levels (MRLs) has also resulted in crop rejections. The economic impact of SWD has been particularly severe for organic operations, mainly due to the limited availability of effective insecticides. Integrated pest management (IPM) of SWD could significantly reduce chemical inputs but would require substantial changes to horticultural management practices. This review evaluates the most promising methods studied as part of an IPM strategy against SWD across the world. For each of the considered techniques, the effectiveness, impact, sustainability, and stage of development are discussed.
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Affiliation(s)
- Gabriella Tait
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
| | - Serhan Mermer
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
| | - Dara Stockton
- USDA-ARS Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, USA
| | - Jana Lee
- USDA-ARS Horticultural Crops Research Unit, Corvallis, OR, USA
| | - Sabina Avosani
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Antoine Abrieux
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Gianfranco Anfora
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
- Center Agriculture Food Environment, University of Trento, San Michele all'Adige, Trentino, Italy
| | - Elizabeth Beers
- Tree Fruit Research & Extension Center, Washington State University, Wenatchee, WA, USA
| | - Antonio Biondi
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Hannah Burrack
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Dong Cha
- USDA-ARS Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, USA
| | - Joanna C Chiu
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Man-Yeon Choi
- USDA-ARS Horticultural Crops Research Unit, Corvallis, OR, USA
| | | | - Cristina M Crava
- Institute of Biotechnology and Biomedicine (BIOTECMED), University of Valencia, Valencia, Spain
| | - Kent M Daane
- Kearney Agricultural Research and Education Center, Parlier, CA, USA
- Department of Environmental Science, Policy & Management, University of California Berkeley, Berkeley, CA, USA
| | - Daniel T Dalton
- Faculty of Engineering & IT, Carinthia University of Applied Sciences, 9524, Villach, Austria
| | - Lauren Diepenbrock
- Citrus Research and Education Center, Entomology and Nematology Department, University of Florida, Lake Alfred, FL, USA
| | - Phillip Fanning
- USDA Economic Research Service, Market Trade and Economics Division, Kansas City, MO, USA
| | - Fatemeh Ganjisaffar
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Miguel I Gómez
- Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY, USA
| | - Larry Gut
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Alberto Grassi
- Technology Transfer Center, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Kelly Hamby
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - Kim A Hoelmer
- USDA-ARS Beneficial Insects Introduction Research Unit, Newark, DE, USA
| | - Claudio Ioriatti
- Technology Transfer Center, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Rufus Isaacs
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | | | - Laura Kraft
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Gregory Loeb
- Department of Entomology, Cornell AgriTech, Geneva, NY, USA
| | | | - Rachele Nieri
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Ferdinand Pfab
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA, USA
| | - Simone Puppato
- Technology Transfer Center, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Dalila Rendon
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
| | - Justin Renkema
- London Research and Development Centre - Vineland Campus, Agriculture and Agri-Food Canada, Vineland, ON, Canada
| | | | - Mary Rogers
- Department of Horticultural Science, University of Minnesota, Saint Paul, MN, USA
| | - Fabiana Sassù
- Department of Forest and Soil Sciences, BOKU, University of Natural Resources and Life Sciences, Vienna, Austria
- Insect Pest Control Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria
| | | | - Maxwell J Scott
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | | | - Ashfaq Sial
- Department of Entomology, University of Georgia, Athens, GA, USA
| | | | - Anna Wallingford
- Department of Agriculture Nutrition and Food Systems, University of New Hampshire, Durham, NH, USA
| | - Xingeng Wang
- USDA-ARS Beneficial Insects Introduction Research Unit, Newark, DE, USA
| | - D Adeline Yeh
- USDA Economic Research Service, Market Trade and Economics Division, Kansas City, MO, USA
| | - Frank G Zalom
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Vaughn M Walton
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
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23
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Marshall AT, Beers EH. Efficacy and Nontarget Effects of Net Exclusion Enclosures on Apple Pest Management. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:1681-1689. [PMID: 34027986 DOI: 10.1093/jee/toab094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Indexed: 06/12/2023]
Abstract
Management of direct apple pests, such as codling moth, continues to be problematic despite the widespread implementation of behavioral and chemical controls. Apple growers have increased their use of netting to protect fruit from environmental injury, with some structures enclosing the entire orchard. These enclosures represent a new pest management tactic through physical exclusion. We conducted a two-year trial to examine the effects of full exclusion netting on pests and natural enemies of apples. Insect densities and damage in trees under fully enclosed (net) cages were compared with conventionally (insecticide only) treated and untreated plots. Caged plots had 18.1- and 11.4-fold less codling moth damage than the check, and 4.9- and 4.2-fold less damage than the insecticide-only plots in 2016 and 2017, respectively. However, densities of woolly apple aphid and its parasitoid Aphelinus mali (Haldeman) (Hymenoptera: Aphelinidae) were significantly greater in the caged plots. Densities of earwigs, a typically flightless generalist predator, were not different among treatments, while adults of more mobile flying generalist predators, lacewings and syrphids, were significantly lower in cages compared with uncaged plots. These results demonstrate that although biological control may be partially disrupted, net enclosures have significant potential as a holistic apple management technique.
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Affiliation(s)
- A T Marshall
- Washington State University, Tree Fruit Research and Extension Center, Wenatchee, WA
| | - E H Beers
- Washington State University, Tree Fruit Research and Extension Center, Wenatchee, WA
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24
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Bourtzis K, Vreysen MJB. Sterile Insect Technique (SIT) and Its Applications. INSECTS 2021; 12:638. [PMID: 34357298 PMCID: PMC8304793 DOI: 10.3390/insects12070638] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 07/11/2021] [Indexed: 12/22/2022]
Abstract
Although most insect species have a beneficial role in the ecosystems, some of them represent major plant pests and disease vectors for livestock and humans. During the last six-seven decades, the sterile insect technique (SIT) has been used as part of area-wide integrated pest management strategies to suppress, contain, locally eradicate or prevent the (re)invasion of insect pest populations and disease vectors worldwide. This Special Issue on "Sterile insect technique (SIT) and its applications", which consists of 27 manuscripts (7 reviews and 20 original research articles), provides an update on the research and development efforts in this area. The manuscripts report on all the different components of the SIT package including mass-rearing, development of genetic sexing strains, irradiation, quality control as well as field trials.
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Affiliation(s)
- Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, A-2444 Seibersdorf, Austria
| | - Marc J. B. Vreysen
- Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, A-2444 Seibersdorf, Austria
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25
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Ramírez-Santos E, Rendon P, Gouvi G, Zacharopoulou A, Bourtzis K, Cáceres C, Bloem K. A Novel Genetic Sexing Strain of Anastrepha ludens for Cost-Effective Sterile Insect Technique Applications: Improved Genetic Stability and Rearing Efficiency. INSECTS 2021; 12:insects12060499. [PMID: 34072029 PMCID: PMC8228190 DOI: 10.3390/insects12060499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/30/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022]
Abstract
Anastrepha ludens (Loew) is one of the most destructive insect pests damaging several fruits of economic importance. The sterile insect technique (SIT) is used under an area-wide integrated pest management approach, to suppress these pest populations. Mass rearing facilities were initially established to produce sterile males of bi-sexual strains in support of SIT. The first genetic sexing strain (GSS) for A. ludens, Tapachula-7, based on pupal color dimorphism, was a key development since the release of males-only significantly increases the SIT efficiency. In this study, we document the development of a novel pupal color-based GSS. Twelve radiation-induced translocation lines were assessed as potential GSS in terms of recombination rates and rearing efficiency at a small scale. The best one, GUA10, was cytogenetically characterized: it was shown to carry a single translocation between the Y chromosome and chromosome 2, which is known to carry the black pupae marker. This GSS was further evaluated at medium and large scales regarding its genetic stability, productivity and quality versus Tapachula-7. GUA10 presented better genetic stability, fecundity, fertility, production efficiency, flying ability, and male mating, clear indicators that GUA10 GSS can significantly improve the efficacy and cost-effectiveness of SIT applications against this pest species.
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Affiliation(s)
- Edwin Ramírez-Santos
- Laboratorio El Pino, Programa MOSCAMED, Km 47.5 Carretera a El Salvador, Parque Nacional Laguna El Pino, 06002 Santa Rosa, Guatemala
- Correspondence:
| | - Pedro Rendon
- International Atomic Energy Agency–Technical Cooperation TCLAC, Programa Moscamed/USDA, Guatemala;
| | - Georgia Gouvi
- Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Seibersdorf, A-1400 Vienna, Austria; (G.G.); (K.B.); (C.C.)
- Department of Environmental Engineering, University of Patras, 2 Seferi Street, 30100 Agrinio, Greece
| | | | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Seibersdorf, A-1400 Vienna, Austria; (G.G.); (K.B.); (C.C.)
| | - Carlos Cáceres
- Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Seibersdorf, A-1400 Vienna, Austria; (G.G.); (K.B.); (C.C.)
| | - Kenneth Bloem
- Retired, USDA-APHIS-PPQ, Science and Technology, Raleigh, NC 27606, USA;
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26
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Muller H, Ogereau D, Da Lage JL, Capdevielle C, Pollet N, Fortuna T, Jeannette R, Kaiser L, Gilbert C. Draft nuclear genome and complete mitogenome of the Mediterranean corn borer, Sesamia nonagrioides, a major pest of maize. G3-GENES GENOMES GENETICS 2021; 11:6272226. [PMID: 33963397 PMCID: PMC8495949 DOI: 10.1093/g3journal/jkab155] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/24/2021] [Indexed: 12/29/2022]
Abstract
The Mediterranean corn borer (Sesamia nonagrioides, Noctuidae, Lepidoptera) is a major pest of maize in Europe and Africa. Here, we report an assembly of the nuclear and mitochondrial genome of a pool of inbred males and females third-instar larvae, based on short- and long-read sequencing. The complete mitochondrial genome is 15,330 bp and contains all expected 13 and 24 protein-coding and RNA genes, respectively. The nuclear assembly is 1021 Mb, composed of 2553 scaffolds and it has an N50 of 1105 kb. It is more than twice larger than that of all Noctuidae species sequenced to date, mainly due to a higher repeat content. A total of 17,230 protein-coding genes were predicted, including 15,776 with InterPro domains. We provide detailed annotation of genes involved in sex determination (doublesex, insulin-like growth factor 2 mRNA-binding protein, and P-element somatic inhibitor) and of alpha-amylase genes possibly involved in interaction with parasitoid wasps. We found no evidence of recent horizontal transfer of bracovirus genes from parasitoid wasps. These genome assemblies provide a solid molecular basis to study insect genome evolution and to further develop biocontrol strategies against S. nonagrioides.
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Affiliation(s)
- Héloïse Muller
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
- Master de Biologie, École Normale Supérieure de Lyon, Université Claude Bernard Lyon I, Université de Lyon, 69342 Lyon Cedex 07, France
| | - David Ogereau
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Jean-Luc Da Lage
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Claire Capdevielle
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Nicolas Pollet
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Taiadjana Fortuna
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Rémi Jeannette
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Laure Kaiser
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
| | - Clément Gilbert
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198 Gif-sur-Yvette, France
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27
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Manfrin C, Giglio A, Pallavicini L, Zampa L, Vecchiet L, Caputi A, Chiandetti C, Beorchia A, Vidimari R, Giulianini PG. Medium-term feasibility of the management of the invasive crayfish Procambarus clarkii with the sterile males release technique. PEST MANAGEMENT SCIENCE 2021; 77:2494-2501. [PMID: 33442899 DOI: 10.1002/ps.6280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/23/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND The sterile male release technique (SMRT) is a useful method applied for controlling invasive and pest species. However, the use of X-rays can lead to negative effects on the survival and health conditions of sterilized males. RESULTS This study was set up to evaluate the functional integrity of physiological, morphological and behavioural responses in males of the red swamp crayfish, Procambarus clarkii (Girard, 1852), exposed to a dose of 40 Gy of ionizing radiation. Concerning physiological responses, the results showed that the irradiation dose, tested at 5, 12, 28, 35, 65, 99, 132 and 193 days after treatment, has no effects on glycaemic and plasmatic total protein levels measured as biomarkers for general stress indexes. Nevertheless, the significant reduction of circulating haemocytes and the basal levels of phenoloxidase (PO) activities recorded in 40-Gy irradiated crayfishes indicate that the exposure shrinks their capability to mount a rapid nonspecific response, and higher levels of plasmatic total PO activity indicate the ability to compensate and maintain an inducible response. Histological analyses performed at the end of the experiment showed no morphological damage in the testicular acini of irradiated males. Moreover, behavioural responses to two different water stimuli (vaporization and jet), measured at 15 and 45 days after the irradiation, were not modified in exposed crayfishes compared to the control group. CONCLUSIONS These results confirm the validity of SMRT on young males when the breeding season is less than 4 months but exposure to X-ray should be repeated at mid-breeding season when temperatures allow a longer breeding season. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Chiara Manfrin
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Anita Giglio
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | | | - Lia Zampa
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Lorenzo Vecchiet
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Andrea Caputi
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | | | - Aulo Beorchia
- Azienda Sanitaria Universitaria Integrata di Trieste, S.C. Fisica Sanitaria, Trieste, Italy
| | - Rossella Vidimari
- Azienda Sanitaria Universitaria Integrata di Trieste, S.C. Fisica Sanitaria, Trieste, Italy
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Development of Sterile Insect Technique for Control of the European Grapevine Moth, Lobesia botrana, in Urban Areas of Chile. INSECTS 2021; 12:insects12050378. [PMID: 33922048 PMCID: PMC8143568 DOI: 10.3390/insects12050378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/17/2022]
Abstract
Simple Summary The establishment of the European grapevine moth in Chile presented significant production and export concerns for the grape and fruit industries. A national control campaign was launched in response. Infestations in urban areas adjacent to agricultural production areas were a significant challenge for control due to the difficulties in mounting effective measures in residential areas. The Servicio Agrícola y Ganadero launched a program to develop a sterile insect technique (SIT) as a means to provide an environmentally friendly method of control in areas where other control measures were not possible to employ. Here, we report the progress made to develop the SIT response capacity with a production of 75,000 sterile moths per week, as well as the results from a season-long SIT release program in a section of a small city in a grape and fruit production region in central Chile. Because of the high moth population in this area, the release of sterile moths did not reach large enough ratios of sterile to wild moths to achieve effective control, but high moth quality and field performance were observed. Recommendations are provided for further development of SIT and how to integrate its use into an effective area-wide control program. Abstract The European grapevine moth, a Palearctic pest, was first detected in the Americas in 2008. Its establishment in Chile presented production and export issues for grapes and other fruits, and a national control campaign was launched. Urban areas next to agricultural production areas were recognized as a challenge for effective control. In 2015, a SIT laboratory was established in Arica, Chile to evaluate its potential for urban control. Progress included the development and evaluation of artificial diets, a mass-rearing of 75,000 moths/week, confirmation of 150 Gy as an operational dose for inherited sterility, and releases of sterile moths in a 25 ha urban area next to fruit production areas. Season-long releases demonstrated that high overflooding ratios were achieved early in the season but decreased with a large increase in the wild moth population. Sterile moth quality was consistently high, and moths were observed living in the field up to 10 days and dispersing up to 800 m. Recommendations for further development of the SIT include conducting cage and field studies to evaluate overflooding ratios and mating competitiveness, measuring of infestation densities in release and no-release areas, and conducting trials to evaluate combining SIT with compatible integrated pest management (IPM) tactics such as fruit stripping and use of mating disruption.
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Pérez-Staples D, Díaz-Fleischer F, Montoya P. The Sterile Insect Technique: Success and Perspectives in the Neotropics. NEOTROPICAL ENTOMOLOGY 2021; 50:172-185. [PMID: 33113111 DOI: 10.1007/s13744-020-00817-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
The sterile insect technique (SIT), an environmentally friendly means of control, is currently used against plant, animal, and human pests under the area-wide integrated pest management. It consists in the mass production, sterilization, and release of insects in an affected area where sterile males mate with wild females leading to no reproduction. Here, we review SIT in the Neotropics and focus on particular recent successful cases of eradication of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), as well as effective programs used against the Mexican fruit fly Anastrepha ludens (Loew), the New World screwworm fly Cochliomyia hominivorax (Coquerel)), and the Cactus moth Cactoblastis cactorum (Berg). We examine when SIT does not work and innovations that have made SIT more efficient and also highlight complimentary techniques that can be used in conjunction. We address potential candidate species that could be controlled through SIT, for example Philornis downsi Dodge & Aitken. Finally, we consider the impact of climate change in the context of the use of the SIT against these pests. Given the recent dramatic decline in insect biodiversity, investing in environmentally friendly means of pest control should be a priority. We conclude that SIT should be promoted in the region, and leadership and political will is needed for continued success of SIT in the Neotropics.
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Affiliation(s)
| | | | - P Montoya
- Programa Moscafrut SENASICA-SADER, Metapa de Domínguez, Chiapas, Mexico
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Nguyen TNM, Choo A, Baxter SW. Lessons from Drosophila: Engineering Genetic Sexing Strains with Temperature-Sensitive Lethality for Sterile Insect Technique Applications. INSECTS 2021; 12:243. [PMID: 33805657 PMCID: PMC8001749 DOI: 10.3390/insects12030243] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/05/2021] [Accepted: 03/09/2021] [Indexed: 12/29/2022]
Abstract
A major obstacle of sterile insect technique (SIT) programs is the availability of robust sex-separation systems for conditional removal of females. Sterilized male-only releases improve SIT efficiency and cost-effectiveness for agricultural pests, whereas it is critical to remove female disease-vector pests prior to release as they maintain the capacity to transmit disease. Some of the most successful Genetic Sexing Strains (GSS) reared and released for SIT control were developed for Mediterranean fruit fly (Medfly), Ceratitis capitata, and carry a temperature sensitive lethal (tsl) mutation that eliminates female but not male embryos when heat treated. The Medfly tsl mutation was generated by random mutagenesis and the genetic mechanism causing this valuable heat sensitive phenotype remains unknown. Conditional temperature sensitive lethal mutations have also been developed using random mutagenesis in the insect model, Drosophila melanogaster, and were used for some of the founding genetic research published in the fields of neuro- and developmental biology. Here we review mutations in select D. melanogaster genes shibire, Notch, RNA polymerase II 215kDa, pale, transformer-2, Dsor1 and CK2α that cause temperature sensitive phenotypes. Precise introduction of orthologous point mutations in pest insect species with CRISPR/Cas9 genome editing technology holds potential to establish GSSs with embryonic lethality to improve and advance SIT pest control.
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Affiliation(s)
- Thu N. M. Nguyen
- Bio21 Institute, School of BioSciences, University of Melbourne, Melbourne, VIC 3052, Australia;
- School of Biological Sciences, University of Adelaide, Adelaide, SA 5005, Australia;
| | - Amanda Choo
- School of Biological Sciences, University of Adelaide, Adelaide, SA 5005, Australia;
| | - Simon W. Baxter
- Bio21 Institute, School of BioSciences, University of Melbourne, Melbourne, VIC 3052, Australia;
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López‐Martínez G, Carpenter JE, Hight SD, Hahn DA. Low-oxygen hormetic conditioning improves field performance of sterile insects by inducing beneficial plasticity. Evol Appl 2021; 14:566-576. [PMID: 33664795 PMCID: PMC7896707 DOI: 10.1111/eva.13141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 11/29/2022] Open
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.
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Affiliation(s)
- Giancarlo López‐Martínez
- Department of Entomology and NematologyUniversity of FloridaGainesvilleFloridaUSA
- Department of Biological SciencesNorth Dakota State UniversityFargoNorth DakotaUSA
| | | | - Stephen D. Hight
- USDA‐ARS Center for Medical, Agricultural, & Veterinary EntomologyTallahasseeFloridaUSA
| | - Daniel A. Hahn
- Department of Entomology and NematologyUniversity of FloridaGainesvilleFloridaUSA
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Paithankar JG, Ghodke TS, Patil RK. Insight into the evolutionary profile of radio-resistance among insects having intrinsically evolved defence against radiation toxicity. Int J Radiat Biol 2021; 98:1012-1024. [PMID: 33264042 DOI: 10.1080/09553002.2020.1859153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Ionizing radiation (IR) has wide-ranging applications in various fields. In agriculture, pest control is one of the important applications, because insect pests have become a threat to the global agriculture industry. IR are used routinely to prevent crop loss and to protect stored food commodities. Radio-sterilization and disinfestation treatments are commonly used procedures for insect pest control. From various studies on insect radio-sterilization and disinfestation, it has been established that compared to vertebrates' insects have high levels of radiation resistance. Therefore, to achieve adequate radio-sterilization/disinfestation; exposure to high doses of IR is necessary. However, studies over decades made a presumption that radiation resistance is general among insects. Recent studies have shown that some insect orders are having high IR resistance and some insect orders are sensitive to IR. These studies have clarified that radiation resistance is not uniform throughout insect class. The present review is an attempt to insight at the evolutionary profile of insect species studied for radio-sterilization and disinfestation treatment and are having the trait of radio-resistance. From various studies on insect radiation resistance and after phylogenetic analysis of insect species it appears that the evolutionary near species have drastically different levels of radio-resistance and trait of radiation resistance appears to be independent of insect evolution.
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Affiliation(s)
- Jagdish Gopal Paithankar
- Division of Environmental Health and Toxicology, Nitte University Centre for Science Education and Research (NUCSER), Nitte (Deemed to be University), Mangalore, India
| | - Tanhaji Sandu Ghodke
- Centre for Applications of Radioisotopes and Radiation Technology (CARRT), Mangalore University, Mangalore, India.,Department of Applied Zoology, Mangalore University, Mangalore, India
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