Current Research in Insect Science最新文献

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Nutritional phenotype underlines the performance trade-offs of Drosophila suzukii on different fruit diets 营养表型强调了铃木果蝇在不同水果饮食上的性能权衡
Current Research in Insect Science Pub Date : 2022-01-01 DOI: 10.1016/j.cris.2021.100026
Runhang Shu , Laurice Uy , Adam Chun-Nin Wong
{"title":"Nutritional phenotype underlines the performance trade-offs of Drosophila suzukii on different fruit diets","authors":"Runhang Shu ,&nbsp;Laurice Uy ,&nbsp;Adam Chun-Nin Wong","doi":"10.1016/j.cris.2021.100026","DOIUrl":"10.1016/j.cris.2021.100026","url":null,"abstract":"<div><p>Animals confined to different dietary conditions often exhibit distinct, sometimes contrasting, nutritional phenotypes and performance outcomes. This is especially true for many oviparous insects whose developmental diets can vary depending on the mother's egg-laying site selection. Much research on the relationship between preference and performance in insects has focused on larval success, which overlooks the complexities of dietary effects on diverse performance parameters across life stages and potential trade-offs between those parameters. Furthermore, the connection between diet-induced nutritional phenotype and performance trade-offs is not well understood. Here, using <em>Drosophila suzukii</em>, we quantify multiple performance indices of larvae and adults reared on five host fruits of different protein-to-sugar ratios (P:S) which have previously been shown to differ in attractiveness to fly foraging and oviposition. Our results demonstrate robust diet-specific performance trade-offs, with fly fecundity, larval development time, pupal size, and adult weight superior in flies reared on the high P:S raspberry diet, in contrast to the low P:S grape diet; but the reverse was found in terms of adult starvation resistance. Notably, the contrasting performance trade-offs are readily explained by the fly nutritional phenotype, reflected in the protein and energy (glucose and lipid) contents of flies reared on the two fruits. Together, our results provide experimental evidence for metabolic plasticity of <em>D. suzukii</em> reared on different fruits and the possibility of using adult nutritional phenotype as a marker for diet and performance outcomes.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"2 ","pages":"Article 100026"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a4/3e/main.PMC9387456.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40636752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Parental dietary protein effects on offspring viability in insects and other oviparous invertebrates: a meta-analysis 亲代饮食蛋白质对昆虫和其他卵生无脊椎动物后代生存能力的影响:一项荟萃分析
Current Research in Insect Science Pub Date : 2022-01-01 DOI: 10.1016/j.cris.2022.100045
Erin L. Macartney , Angela J Crean , Russell Bonduriansky
{"title":"Parental dietary protein effects on offspring viability in insects and other oviparous invertebrates: a meta-analysis","authors":"Erin L. Macartney ,&nbsp;Angela J Crean ,&nbsp;Russell Bonduriansky","doi":"10.1016/j.cris.2022.100045","DOIUrl":"10.1016/j.cris.2022.100045","url":null,"abstract":"<div><p>Dietary protein is a key regulator of reproductive effort in animals, but protein consumption also tends to accelerate senescence and reduce longevity. Given this protein-mediated trade-off between reproduction and survival, how does protein consumption by parents affect the viability of their offspring? In insects, protein consumption by females enhances fecundity, but trade-offs between offspring quantity and quality could result in negative effects of protein consumption on offspring viability. Likewise, protein consumption by males tends to enhance the expression of sexual traits but could have negative effects on offspring viability, mediated by epigenetic factors transmitted via the ejaculate. It remains unclear whether dietary protein has consistent effects on offspring viability across species, and whether these effects are sex-specific. To address this, we conducted a meta-analysis of experimental studies that examined the effects of protein content in the maternal and/or paternal diet in insects and other oviparous invertebrates. We did not find consistent effects of paternal or maternal protein consumption on offspring viability. Rather, effects of dietary protein on offspring vary in both magnitude and sign across taxonomic groups. Further studies are needed to determine how the effects of dietary protein on offspring relate to variation in reproductive biology across species. Our findings also highlight important gaps in the literature and limitations in experiment design.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"2 ","pages":"Article 100045"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/01/58/main.PMC9846472.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10581050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Resilience of Polar Collembola (Springtails) in a Changing Climate 极地弹尾虫在气候变化中的适应能力
Current Research in Insect Science Pub Date : 2022-01-01 DOI: 10.1016/j.cris.2022.100046
Clare R. Beet , Ian D. Hogg , S. Craig Cary , Ian R. McDonald , Brent J. Sinclair
{"title":"The Resilience of Polar Collembola (Springtails) in a Changing Climate","authors":"Clare R. Beet ,&nbsp;Ian D. Hogg ,&nbsp;S. Craig Cary ,&nbsp;Ian R. McDonald ,&nbsp;Brent J. Sinclair","doi":"10.1016/j.cris.2022.100046","DOIUrl":"10.1016/j.cris.2022.100046","url":null,"abstract":"<div><p>Assessing the resilience of polar biota to climate change is essential for predicting the effects of changing environmental conditions for ecosystems. Collembola are abundant in terrestrial polar ecosystems and are integral to food-webs and soil nutrient cycling. Using available literature, we consider resistance (genetic diversity; behavioural avoidance and physiological tolerances; biotic interactions) and recovery potential for polar Collembola. Polar Collembola have high levels of genetic diversity, considerable capacity for behavioural avoidance, wide thermal tolerance ranges, physiological plasticity, generalist-opportunistic feeding habits and broad ecological niches. The biggest threats to the ongoing resistance of polar Collembola are increasing levels of dispersal (gene flow), increased mean and extreme temperatures, drought, changing biotic interactions, and the arrival and spread of invasive species. If resistance capacities are insufficient, numerous studies have highlighted that while some species can recover from disturbances quickly, complete community-level recovery is exceedingly slow. Species dwelling deeper in the soil profile may be less able to resist climate change and may not recover in ecologically realistic timescales given the current rate of climate change. Ultimately, diverse communities are more likely to have species or populations that are able to resist or recover from disturbances. While much of the Arctic has comparatively high levels of diversity and phenotypic plasticity; areas of Antarctica have extremely low levels of diversity and are potentially much more vulnerable to climate change.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"2 ","pages":"Article 100046"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fa/8d/main.PMC9846479.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10581055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Ecdysteroid kinase-like (EcKL) paralogs confer developmental tolerance to caffeine in Drosophila melanogaster 表皮甾体激酶样(EcKL)类似性赋予黑腹果蝇对咖啡因的发育耐受性
Current Research in Insect Science Pub Date : 2021-09-16 DOI: 10.1101/2021.09.15.460555
J. Scanlan, Paul Battlay, C. Robin
{"title":"Ecdysteroid kinase-like (EcKL) paralogs confer developmental tolerance to caffeine in Drosophila melanogaster","authors":"J. Scanlan, Paul Battlay, C. Robin","doi":"10.1101/2021.09.15.460555","DOIUrl":"https://doi.org/10.1101/2021.09.15.460555","url":null,"abstract":"A unique aspect of metabolic detoxification in insects compared to other animals is the presence of xenobiotic phosphorylation, about which little is currently understood. Our previous work raised the hypothesis that members of the taxonomically restricted ecdysteroid kinase-like (EcKL) gene family encode the enzymes responsible for xenobiotic phosphorylation in the model insect Drosophila melanogaster (Diptera: Ephydroidea)—however, candidate detoxification genes identified in the EcKL family have yet to be functionally validated. Here, we test the hypothesis that EcKL genes in the rapidly evolving Dro5 clade are involved in the detoxification of plant and fungal toxins in D. melanogaster. The mining and reanalysis of existing data indicated multiple Dro5 genes are transcriptionally induced by the plant alkaloid caffeine and that adult caffeine susceptibility is associated with a novel naturally occurring indel in CG31370 (Dro5-8) in the Drosophila Genetic Reference Panel (DGRP). CRISPR-Cas9 mutagenesis of five Dro5 EcKLs substantially decreased developmental tolerance of caffeine, while individual overexpression of two of these genes—CG31300 (Dro5-1) and CG13659 (Dro5-7)—in detoxification-related tissues increased developmental tolerance. In addition, we found Dro5 loss-of-function animals also have decreased developmental tolerance of the fungal secondary metabolite kojic acid. Taken together, this work provides the first compelling functional evidence that EcKLs encode detoxification enzymes and suggests that EcKLs in the Dro5 clade are involved in the metabolism of multiple ecologically relevant toxins in D. melanogaster. We also propose a biochemical hypothesis for EcKL involvement in caffeine detoxification and highlight the many unknown aspects of caffeine metabolism in D. melanogaster and other insects. Highlights Phosphorylation is an under-characterised detoxification reaction in insects Dro5 EcKL genes are good detoxification candidate genes in Drosophila melanogaster Knockout and misexpression of some Dro5 genes modulated tolerance to caffeine Dro5 genes may also confer tolerance to the fungal toxin kojic acid Caffeine tolerance could be adaptive for Drosophila associating with Citrus fruits","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43842622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Completion of metamorphosis after adult emergence in Ceratitis capitata (Diptera: Tephritidae) 头角绦虫成虫羽化后变态完成(双翅目:绦虫科)
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2021.100017
Pablo Alejandro Bochicchio , Martín Mariano Pérez , Luis Alberto Quesada-Allué , Alejandro Rabossi
{"title":"Completion of metamorphosis after adult emergence in Ceratitis capitata (Diptera: Tephritidae)","authors":"Pablo Alejandro Bochicchio ,&nbsp;Martín Mariano Pérez ,&nbsp;Luis Alberto Quesada-Allué ,&nbsp;Alejandro Rabossi","doi":"10.1016/j.cris.2021.100017","DOIUrl":"https://doi.org/10.1016/j.cris.2021.100017","url":null,"abstract":"<div><p>The ecdysis of the imago is a crucial step in the development of holometabolous insects. However, no information on several aspects of <em>Ceratitis capitata</em> imago emergence and subsequent body maturation is available. We analysed behavioural events and evaluated the oxygen consumption and the dynamics of carbohydrate and lipid reserves during puparium extrication and in newly emerged imago until full wing expansion. A system for recording images with the corresponding software for image analysis was built for this purpose. After extrication, <em>C. capitata</em> showed two early postemergence phases: walking (6.56 ± 4.01 min, 6.2% of the wing spreading period, WSP) and the phase without locomotor motion (98.75 ± 26.04 min; 93.8% WSP). Three main events were recognized during the last phase. The first involved an initial expansion of the wings (11.12 ± 4.32 min). The second event was the progressive tanning of the body cuticle in general and the wing veins in particular, and the last entailed the definitive expansion of the wings to attain the characteristic arrow-shaped wing aspect. Our studies here complement previous descriptions of the tanning process of newly emerged medfly adults (Pérez et al., 2018). As a consequence of the results presented here, we consider that the initial events of the newly emerged adult could be interpreted as the last steps of metamorphosis.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 ","pages":"Article 100017"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cris.2021.100017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91765537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Propagule pressure helps overcome adverse environmental conditions during population establishment 繁殖压力有助于克服种群建立期间的不利环境条件。
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2021.100011
D.L. Saccaggi , J.R.U. Wilson , J.S. Terblanche
{"title":"Propagule pressure helps overcome adverse environmental conditions during population establishment","authors":"D.L. Saccaggi ,&nbsp;J.R.U. Wilson ,&nbsp;J.S. Terblanche","doi":"10.1016/j.cris.2021.100011","DOIUrl":"10.1016/j.cris.2021.100011","url":null,"abstract":"<div><p>The establishment success of a population is a function of abiotic and biotic factors and introduction dynamics. Understanding how these factors interact has direct consequences for understanding and managing biological invasions and for applied ecology more generally. Here we use a mesocosm approach to explore how the size of founding populations and the number of introduction events interact with environmental conditions (temperature) to determine the establishment success of laboratory-reared <em>Drosophila melanogaster.</em> We found that temperature played the biggest role in establishment success, eclipsing the role of the other experimental factors when viewed overall. Under optimal temperature conditions propagule pressure was of negligible importance to establishment success.  At adverse temperatures, however, establishment success increased with the total founding population size. This effect was considerably stronger at the cold than at the hot extreme. Whether the population was introduced all at once or by increments (changing the number of introduction events) had a negligible global effect. However, once again, a stronger effect of increasing number of introduction events was seen at adverse temperatures, with hot and cold extremes revealing opposite effects: adding flies incrementally decreased their establishment success at the hot extreme, but increased it at the cold extreme. These differing effects at hot and cold thermal extremes implies that different establishment mechanisms are at play at either extreme. These results suggest that the effort required to prevent (or conversely, to facilitate) the establishment of populations varies with the environment in ways that can be complicated but predictable.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 ","pages":"Article 100011"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cris.2021.100011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40424930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Understanding social resilience in honeybee colonies 了解蜂群的社会弹性
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2021.100021
Zeynep N. Ulgezen , Coby van Dooremalen , Frank van Langevelde
{"title":"Understanding social resilience in honeybee colonies","authors":"Zeynep N. Ulgezen ,&nbsp;Coby van Dooremalen ,&nbsp;Frank van Langevelde","doi":"10.1016/j.cris.2021.100021","DOIUrl":"10.1016/j.cris.2021.100021","url":null,"abstract":"<div><p>Honeybee colonies experience high losses, induced by several stressors that can result in the collapse of colonies. Experiments show what effects stressors, such as parasites, pathogens and pesticides, can have on individual honeybees as well as colonies. Although individuals may die, colonies do not always collapse from such disturbances. As a superorganism, the colony can maintain or return back to homeostasis through colony mechanisms. This capacity is defined as social resilience. When the colony faces a high stress load, this may lead to breakdown in mechanisms, loss in resilience and eventually colony collapse. Before social resilience can be measured in honeybees, we need to examine the mechanisms in colonies that allow recovery and maintenance after stressor exposure. Here, we discuss some of these mechanisms and how they affect the social resilience of honeybee colonies. Understanding social resilience in honeybees is essential to managing colony health and loss prevention.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 ","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9387495/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40424932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A simple and dynamic thermal gradient device for measuring thermal performance in small ectotherms 一种用于测量小型变温动物热性能的简单动态热梯度装置
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2020.100005
Marshall W. Ritchie, Jeff W. Dawson, Heath A. MacMillan
{"title":"A simple and dynamic thermal gradient device for measuring thermal performance in small ectotherms","authors":"Marshall W. Ritchie,&nbsp;Jeff W. Dawson,&nbsp;Heath A. MacMillan","doi":"10.1016/j.cris.2020.100005","DOIUrl":"10.1016/j.cris.2020.100005","url":null,"abstract":"<div><p>The body temperature of ectothermic animals is heavily dependent on environmental temperature, impacting fitness. Laboratory exposure to favorable and unfavorable temperatures is used to understand these effects, as well as the physiological, biochemical, and molecular underpinnings of variation in thermal performance. Although small ectotherms, like insects, can often be easily reared in large numbers, it can be challenging and expensive to simultaneously create and manipulate several thermal environments in a laboratory setting. Here, we describe the creation and use of a thermal gradient device that can produce a wide range of constant or varying temperatures concurrently. Conservatively, this system as designed can operate between -6 °C and 40 °C. This device is composed of a solid aluminum plate and copper piping, combined with a pair of refrigerated circulators. As a simple proof-of-concept, we completed single experimental runs to produce a low-temperature survival curve for flies (<em>Drosophila melanogaster</em>) and explore the effects of daily thermal cycles of varying amplitude on growth rates of crickets (<em>Gryllodes sigillatus</em>). This approach avoids the use of multiple heating/cooling water or glycol baths or incubators for large-scale assessments of organismal thermal performance. It makes static or dynamic thermal experiments (e.g., creating a thermal performance or survival curves, quantifying responses to fluctuating thermal environments, or monitoring animal behavior across a range of temperatures) easier, faster, and less costly.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 ","pages":"Article 100005"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cris.2020.100005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40653131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Examination of population genetics of the Coconut Rhinoceros Beetle (Oryctes rhinoceros) and the incidence of its biocontrol agent (Oryctes rhinoceros nudivirus) in the South Pacific Islands 南太平洋岛屿椰子犀牛甲虫(Oryctes Rhinoceros)种群遗传学及其生物防治剂(Oryctes Rhinoceros裸眼病毒)发病率的研究
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2021.100015
Kayvan Etebari , James Hereward , Apenisa Sailo , Emeline M. Ahoafi , Robert Tautua , Helen Tsatsia , Grahame V Jackson , Michael J. Furlong
{"title":"Examination of population genetics of the Coconut Rhinoceros Beetle (Oryctes rhinoceros) and the incidence of its biocontrol agent (Oryctes rhinoceros nudivirus) in the South Pacific Islands","authors":"Kayvan Etebari ,&nbsp;James Hereward ,&nbsp;Apenisa Sailo ,&nbsp;Emeline M. Ahoafi ,&nbsp;Robert Tautua ,&nbsp;Helen Tsatsia ,&nbsp;Grahame V Jackson ,&nbsp;Michael J. Furlong","doi":"10.1016/j.cris.2021.100015","DOIUrl":"10.1016/j.cris.2021.100015","url":null,"abstract":"<div><p>Recently, incursions of the Coconut rhinoceros beetle (CRB), <em>Oryctes rhinoceros</em>, have been detected in south Pacific countries that were previously free of the pest. It has been suggested that this range expansion is related to an <em>O. rhinoceros</em> haplotype that is reported to show reduced susceptibility to the well-established classical biocontrol agent, Oryctes rhinoceros nudivirus (OrNV). We investigated <em>O. rhinoceros</em> population genetics and the OrNV status of specimens collected in Fiji, New Caledonia, Papua New Guinea (PNG), Samoa, Solomon Islands, Tonga, Vanuatu and the Philippines. Based on the sequence of the mitochondrial <em>CoxI</em> gene, we found three major mitochondrial haplotype groups (CRB-G, CRB-PNG and CRB-S) across the region. Haplotype diversity varied between and within countries and a high incidence of OrNV infection was detected in all haplotypes wherever they occurred. The <em>O. rhinoceros</em> population in some countries was monotypic and all individuals tested belonged to a single haplotype group. However, in Samoa we detected CRB-S and CRB-PNG and in Solomon Islands we detected all three haplotype groups. Genotyping-by-Sequencing (GBS) showed genetic differentiation in the <em>O. rhinoceros</em> nuclear genome across populations on different islands and provided evidence for gene flow, resulting in a well-mixed population, despite the presence of different <em>CoxI</em> haplotypes in Solomon Islands. Evidence of admixture was also detected on both islands of Samoa. The current <em>CoxI</em> based method is not a reliable diagnostic marker for phenotypic traits, especially in countries such as Solomon Islands where the mitochondrial haplotypes have come back into sympatry and are mixed. To identify possible mechanisms of resistance to OrNV, further molecular analyses <em>O. rhinoceros</em> in response to virus infection is required. To improve biological control of <em>O. rhinoceros</em>, such analyses will need to be combined with an improved understanding of the population genetics of the pest and the evolutionary history of OrNV in the region.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 ","pages":"Article 100015"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cris.2021.100015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40424927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Streamlined phage display library protocols for identification of insect gut binding peptides highlight peptide specificity 用于鉴定昆虫肠道结合肽的流线型噬菌体展示文库方案突出了肽的特异性
Current Research in Insect Science Pub Date : 2021-01-01 DOI: 10.1016/j.cris.2021.100012
Ruchir Mishra, Ya Guo , Pavan Kumar , Pablo Emiliano Cantón, Clebson S. Tavares, Rahul Banerjee, Suyog Kuwar, Bryony C. Bonning
{"title":"Streamlined phage display library protocols for identification of insect gut binding peptides highlight peptide specificity","authors":"Ruchir Mishra,&nbsp;Ya Guo ,&nbsp;Pavan Kumar ,&nbsp;Pablo Emiliano Cantón,&nbsp;Clebson S. Tavares,&nbsp;Rahul Banerjee,&nbsp;Suyog Kuwar,&nbsp;Bryony C. Bonning","doi":"10.1016/j.cris.2021.100012","DOIUrl":"10.1016/j.cris.2021.100012","url":null,"abstract":"<div><p>Phage display libraries have been used to isolate insect gut binding peptides for use as pathogen transmission blocking agents, and to provide artificial anchors for increased toxicity of bacteria-derived pesticidal proteins. Previously, phage clones displaying enriched peptides were sequenced by Sanger sequencing. Here we present a streamlined protocol for identification of insect gut binding peptides, using insect-appropriate feeding strategies, with next generation sequencing and tailored bioinformatics analyses. The bioinformatics pipeline is designed to eliminate poorly enriched and false positive peptides, and to identify peptides predicted to be stable and hydrophilic. In addition to developing streamlined protocols, we also sought to address whether candidate gut binding peptides can bind to insects from more than one order, which is an important consideration for safe, practical use of peptide-modified pesticidal proteins. To this end, we screened phage display libraries for peptides that bind to the gut epithelia of two pest insects, the Asian citrus psyllid, <em>Diaphorina citri</em> (Hemiptera) and beet armyworm, <em>Spodoptera exigua</em> (Lepidoptera), and one beneficial insect, the western honey bee, <em>Apis mellifera</em> (Hymenoptera). While unique peptide sequences totaling 13,427 for <em>D. citri</em>, 89,561 for <em>S. exigua</em> and 69,053 for <em>A. mellifera</em> were identified from phage eluted from the surface of the insect guts, final candidate pools were comprised of 53, 107 and 1423 peptides respectively. The benefits of multiple rounds of biopanning, along with peptide binding properties in relation to practical use of peptide-modified pesticidal proteins for insect pest control are discussed.</p></div>","PeriodicalId":34629,"journal":{"name":"Current Research in Insect Science","volume":"1 ","pages":"Article 100012"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cris.2021.100012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40636724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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