Pub Date : 2025-03-23DOI: 10.1016/j.cois.2025.101371
Tomer Ventura
Sexual differentiation in crustaceans is shaped by genetic, hormonal, and environmental factors, with notable interspecies diversity. This review highlights key mechanisms in decapods, including genetic pathways like Doublesex and species-specific variations, such as the Y-linked iDMY gene in spiny lobsters. Male differentiation is driven by the androgenic gland and its insulin-like hormone, while female differentiation involves eyestalk neuropeptides like gonad-inhibiting hormone. Environmental factors, such as density, influence flexible genetic systems. These findings aid aquaculture by enabling sex ratio manipulation and inform conservation through biotechnological advances. Emerging tools like CRISPR promise deeper insights into crustacean sexual differentiation.
{"title":"Crustacean sexual differentiation: a decapod perspective","authors":"Tomer Ventura","doi":"10.1016/j.cois.2025.101371","DOIUrl":"10.1016/j.cois.2025.101371","url":null,"abstract":"<div><div>Sexual differentiation in crustaceans is shaped by genetic, hormonal, and environmental factors, with notable interspecies diversity. This review highlights key mechanisms in decapods, including genetic pathways like Doublesex and species-specific variations, such as the Y-linked iDMY gene in spiny lobsters. Male differentiation is driven by the androgenic gland and its insulin-like hormone, while female differentiation involves eyestalk neuropeptides like gonad-inhibiting hormone. Environmental factors, such as density, influence flexible genetic systems. These findings aid aquaculture by enabling sex ratio manipulation and inform conservation through biotechnological advances. Emerging tools like CRISPR promise deeper insights into crustacean sexual differentiation.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101371"},"PeriodicalIF":5.8,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-22DOI: 10.1016/j.cois.2025.101359
Manu E Saunders , Alexander C Lees , Eliza M Grames
{"title":"Corrigendum to “Understanding and counteracting the denial of insect biodiversity loss” [Curr Opin Insect Sci 68 (2025) 101338]","authors":"Manu E Saunders , Alexander C Lees , Eliza M Grames","doi":"10.1016/j.cois.2025.101359","DOIUrl":"10.1016/j.cois.2025.101359","url":null,"abstract":"","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101359"},"PeriodicalIF":5.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-21DOI: 10.1016/j.cois.2025.101368
Thomas Chouvenc
While termites play important ecological roles, a fraction of species have strong invasive capabilities and represent urban pests of economic importance worldwide. Their invasive potential is exacerbated by human activities such as maritime transport, with privately owned boats serving as key vectors for local and global termite dispersal, particularly for Cryptotermes and Coptotermes pest species. Land establishment by invasive termites can remain undetected for decades, often making eradication attempts too late to succeed. Ultimately, invasive termite species will likely continue to spread at the global scale, and recent new invasive records point toward an underestimation of their actual current invasive status.
{"title":"Invasive termites and their growing global impact as major urban pests","authors":"Thomas Chouvenc","doi":"10.1016/j.cois.2025.101368","DOIUrl":"10.1016/j.cois.2025.101368","url":null,"abstract":"<div><div>While termites play important ecological roles, a fraction of species have strong invasive capabilities and represent urban pests of economic importance worldwide. Their invasive potential is exacerbated by human activities such as maritime transport, with privately owned boats serving as key vectors for local and global termite dispersal, particularly for <em>Cryptotermes</em> and <em>Coptotermes</em> pest species. Land establishment by invasive termites can remain undetected for decades, often making eradication attempts too late to succeed. Ultimately, invasive termite species will likely continue to spread at the global scale, and recent new invasive records point toward an underestimation of their actual current invasive status.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101368"},"PeriodicalIF":5.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-21DOI: 10.1016/j.cois.2025.101370
Shigeyuki Koshikawa, Yoichiro Tamori
{"title":"Editorial overview: Development and regulation: Evo-Devo and extended perspectives","authors":"Shigeyuki Koshikawa, Yoichiro Tamori","doi":"10.1016/j.cois.2025.101370","DOIUrl":"10.1016/j.cois.2025.101370","url":null,"abstract":"","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101370"},"PeriodicalIF":5.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-21DOI: 10.1016/j.cois.2025.101369
Joshua B Benoit , Hester Weaving , Callum McLellan , John S Terblanche , Geoffrey M Attardo , Sinead English
Tsetse flies (Glossina species) are unique organisms that combine several remarkable traits: they are obligate blood feeders, serve as critical vectors for African trypanosomes, and reproduce through adenotrophic viviparity — a process in which offspring are nourished with milk-like secretions before being born live. Here, we explore how climate change will impact the physiological processes associated with live birth in tsetse. This includes considerations of how blood feeding, host–pathogen interactions, and host–symbiont dynamics are likely to be impacted by thermal shifts. The highly specialized biology of tsetse flies suggests that this system is likely to have a distinctive response to climate change. Thus, detailed empirical research into these unique features is paramount for predicting tsetse population dynamics under climate change, with caution required when generalizing from other well-studied vectors with contrasting ecology and life histories such as mosquitoes and ticks. At the same time, the reproductive biology of tsetse, as well as microbiome and feeding dynamics, allow for a powerful model to investigate climate change through the lens of pregnancy and associated physiological adaptations in an extensively researched invertebrate.
{"title":"Viviparity and obligate blood feeding: tsetse flies as a unique research system to study climate change","authors":"Joshua B Benoit , Hester Weaving , Callum McLellan , John S Terblanche , Geoffrey M Attardo , Sinead English","doi":"10.1016/j.cois.2025.101369","DOIUrl":"10.1016/j.cois.2025.101369","url":null,"abstract":"<div><div>Tsetse flies (<em>Glossina</em> species) are unique organisms that combine several remarkable traits: they are obligate blood feeders, serve as critical vectors for African trypanosomes, and reproduce through adenotrophic viviparity — a process in which offspring are nourished with milk-like secretions before being born live. Here, we explore how climate change will impact the physiological processes associated with live birth in tsetse. This includes considerations of how blood feeding, host–pathogen interactions, and host–symbiont dynamics are likely to be impacted by thermal shifts. The highly specialized biology of tsetse flies suggests that this system is likely to have a distinctive response to climate change. Thus, detailed empirical research into these unique features is paramount for predicting tsetse population dynamics under climate change, with caution required when generalizing from other well-studied vectors with contrasting ecology and life histories such as mosquitoes and ticks. At the same time, the reproductive biology of tsetse, as well as microbiome and feeding dynamics, allow for a powerful model to investigate climate change through the lens of pregnancy and associated physiological adaptations in an extensively researched invertebrate.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101369"},"PeriodicalIF":5.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-13DOI: 10.1016/j.cois.2025.101362
Denis C Calandriello , Vanessa AS Cunha , Daniel Batista , Bruno C Genevcius
Insects exhibit a vast array of morphological specializations. Recent eco-evo-devo studies have provided a fresh perspective into how insect morphology can respond to the environment, both plastically and adaptively. Here, we performed a systematic literature analysis to identify biases and gaps in research on the molecular mechanisms underlying insect morphological adaptation and plasticity. We found that plasticity studies are increasingly present in the literature, while adaptation studies lag behind. Additionally, we observed a disproportionate focus on a few insect orders and specific traits like wings and body size. We highlight the need to explore the broader insect diversity, including understudied groups and unexplored traits like reproductive organs, as well as utilize advanced methods to capture subtle morphological variation. Studying a wider range of species with diverse morphologies and ecological features, as well as implementing modern genome-wide tools, can reveal the full spectrum of mechanisms underlying morphological adaptation and plasticity in insects.
{"title":"Genetic architecture of morphological adaptation and plasticity in insects: gaps, biases, and future directions","authors":"Denis C Calandriello , Vanessa AS Cunha , Daniel Batista , Bruno C Genevcius","doi":"10.1016/j.cois.2025.101362","DOIUrl":"10.1016/j.cois.2025.101362","url":null,"abstract":"<div><div>Insects exhibit a vast array of morphological specializations. Recent eco-evo-devo studies have provided a fresh perspective into how insect morphology can respond to the environment, both plastically and adaptively. Here, we performed a systematic literature analysis to identify biases and gaps in research on the molecular mechanisms underlying insect morphological adaptation and plasticity. We found that plasticity studies are increasingly present in the literature, while adaptation studies lag behind. Additionally, we observed a disproportionate focus on a few insect orders and specific traits like wings and body size. We highlight the need to explore the broader insect diversity, including understudied groups and unexplored traits like reproductive organs, as well as utilize advanced methods to capture subtle morphological variation. Studying a wider range of species with diverse morphologies and ecological features, as well as implementing modern genome-wide tools, can reveal the full spectrum of mechanisms underlying morphological adaptation and plasticity in insects.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101362"},"PeriodicalIF":5.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143633708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-12DOI: 10.1016/j.cois.2025.101367
Toke T Høye , Matteo Montagna , Bas Oteman , David B Roy
Efficient tools for monitoring pollinator populations are urgently needed to address their reported declines. Here, we review advanced technologies focusing on image recognition and DNA-based methods to monitor bees, hoverflies, moths, and butterflies. Insect camera traps are widely used to record nocturnal insects against uniform backgrounds, while cameras studying diurnal pollinators in natural vegetation are in early stages of development. Depending on context, insect camera traps can assess occurrence, phenology, and proxies of abundance for easily recognisable and common species. DNA-based techniques can drastically decrease the costs of sample processing and speed of specimen identification but strongly depend on the completeness of reference DNA databases, which are continually improving. Molecular analyses are becoming more affordable as uptake increases. Image-based methods for identification of dead specimens show promising results for some invertebrates, but image reference databases for pollinators are far from complete. Building image reference databases with expert entomologists is a priority. Lidar and acoustic sensors are emerging technologies although it is still uncertain which insect taxa can be separated in data from these sensors and how well. By improving accessibility to novel technologies and integrating them with existing approaches, monitoring of pollinators and other insects could deliver richer, more standardised and possibly cheaper data with benefits to future insect conservation efforts.
{"title":"Emerging technologies for pollinator monitoring","authors":"Toke T Høye , Matteo Montagna , Bas Oteman , David B Roy","doi":"10.1016/j.cois.2025.101367","DOIUrl":"10.1016/j.cois.2025.101367","url":null,"abstract":"<div><div>Efficient tools for monitoring pollinator populations are urgently needed to address their reported declines. Here, we review advanced technologies focusing on image recognition and DNA-based methods to monitor bees, hoverflies, moths, and butterflies. Insect camera traps are widely used to record nocturnal insects against uniform backgrounds, while cameras studying diurnal pollinators in natural vegetation are in early stages of development. Depending on context, insect camera traps can assess occurrence, phenology, and proxies of abundance for easily recognisable and common species. DNA-based techniques can drastically decrease the costs of sample processing and speed of specimen identification but strongly depend on the completeness of reference DNA databases, which are continually improving. Molecular analyses are becoming more affordable as uptake increases. Image-based methods for identification of dead specimens show promising results for some invertebrates, but image reference databases for pollinators are far from complete. Building image reference databases with expert entomologists is a priority. Lidar and acoustic sensors are emerging technologies although it is still uncertain which insect taxa can be separated in data from these sensors and how well. By improving accessibility to novel technologies and integrating them with existing approaches, monitoring of pollinators and other insects could deliver richer, more standardised and possibly cheaper data with benefits to future insect conservation efforts.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101367"},"PeriodicalIF":5.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-11DOI: 10.1016/j.cois.2025.101366
Changlu Wang, Richard Cooper
Cockroaches, bed bugs, and commensal rodents are economically and medically important indoor pests. Effective detection of these pests is critical for preventing their establishment, reducing their spread, and quickly eliminating existing activity. Many types of devices have been developed to monitor these pests. They are an essential tool in an integrated pest management program, playing an important role in pest detection and management. Here, we provide an overview of the commonly used monitoring tools and novel technologies that offer effective detection and savings in labor costs.
{"title":"Advances in monitoring of indoor pests","authors":"Changlu Wang, Richard Cooper","doi":"10.1016/j.cois.2025.101366","DOIUrl":"10.1016/j.cois.2025.101366","url":null,"abstract":"<div><div>Cockroaches, bed bugs, and commensal rodents are economically and medically important indoor pests. Effective detection of these pests is critical for preventing their establishment, reducing their spread, and quickly eliminating existing activity. Many types of devices have been developed to monitor these pests. They are an essential tool in an integrated pest management program, playing an important role in pest detection and management. Here, we provide an overview of the commonly used monitoring tools and novel technologies that offer effective detection and savings in labor costs.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101366"},"PeriodicalIF":5.8,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143623855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-11DOI: 10.1016/j.cois.2025.101363
Thiago Luiz Alves e Silva, Renuka Elizabeth Joseph, Joel Vega-Rodriguez
Mosquito blood feeding is complicated by the host’s hemostatic and immune responses, which remain active after ingestion, affecting blood ingestion and digestion and threatening the midgut epithelium integrity. At the bite site, mosquitoes bypass the host’s hemostatic and immune defenses by injecting saliva containing bioactive molecules, such as anticoagulants and immunomodulators, which facilitate efficient blood extraction. Ingested saliva can also modulate similar responses in the blood bolus. Here, we examine current evidence on how mosquito saliva proteins modulate blood responses in the midgut and enhance Plasmodium transmission. Saliva proteins are potential transmission-blocking targets for new intervention strategies to combat mosquito-borne diseases.
{"title":"Beyond the bite: how mosquito salivary proteins modulate midgut biology and malaria parasite transmission","authors":"Thiago Luiz Alves e Silva, Renuka Elizabeth Joseph, Joel Vega-Rodriguez","doi":"10.1016/j.cois.2025.101363","DOIUrl":"10.1016/j.cois.2025.101363","url":null,"abstract":"<div><div>Mosquito blood feeding is complicated by the host’s hemostatic and immune responses, which remain active after ingestion, affecting blood ingestion and digestion and threatening the midgut epithelium integrity. At the bite site, mosquitoes bypass the host’s hemostatic and immune defenses by injecting saliva containing bioactive molecules, such as anticoagulants and immunomodulators, which facilitate efficient blood extraction. Ingested saliva can also modulate similar responses in the blood bolus<em>.</em> Here, we examine current evidence on how mosquito saliva proteins modulate blood responses in the midgut and enhance <em>Plasmodium</em> transmission. Saliva proteins are potential transmission-blocking targets for new intervention strategies to combat mosquito-borne diseases.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"69 ","pages":"Article 101363"},"PeriodicalIF":5.8,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143623869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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