Current opinion in insect science最新文献

Crosstalk between environmental factors and sex determination pathway: Insights from lepidopteran insects and cladoceran crustaceans. 环境因素与性别决定途径之间的串扰：来自鳞翅目昆虫和枝海洋甲壳类动物的启示。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-06-19 DOI: 10.1016/j.cois.2025.101403

Yasuhiko Kato, Hajime Watanabe

{"title":"Crosstalk between environmental factors and sex determination pathway: Insights from lepidopteran insects and cladoceran crustaceans.","authors":"Yasuhiko Kato, Hajime Watanabe","doi":"10.1016/j.cois.2025.101403","DOIUrl":"10.1016/j.cois.2025.101403","url":null,"abstract":"<p><p>Insects exhibit a remarkable diversity of sex-determination systems. Sex-determining mechanisms have been extensively analyzed using the genetic model insects, such as Drosophila melanogaster, revealing that insect sex is determined in a cell-autonomous manner. The sexual identity of each cell is governed by the conserved transcription factor Doublesex, while the regulatory mechanisms controlling its expression are species-specific. In contrast, our understanding of how environmental factors modulate the sex determination pathway remains limited. In this review, we summarize recent discoveries on the crosstalk between environmental factors and sex determination pathways in the lepidopteran insects and the cladoceran crustaceans, which are closely related to insects. We discuss how the symbiotic bacterium Wolbachia hijacks the host WZ/ZZ sex determination pathway in the lepidopteran Ostrinia furnacalis. In addition, we highlight how males that are genetically identical to females are produced in response to environmental stimuli in the cladoceran crustacean Daphnia magna. Based on these findings, we explore the evolutionary, ecological, and applied implications of the molecular mechanisms underlying environmentally influenced sex determination.</p>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":" ","pages":"101403"},"PeriodicalIF":5.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144339982","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}

引用次数: 0

Neuroanatomy of blood feeding arthropods. 血食性节肢动物的神经解剖学。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-06-18 DOI: 10.1016/j.cois.2025.101402

Jessica A Hearn, Gabriella H Wolff

引用次数: 0

Cooperation and conflict in termite societies 白蚁社会中的合作与冲突。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-06-13 DOI: 10.1016/j.cois.2025.101401

Judith Korb

{"title":"Cooperation and conflict in termite societies","authors":"Judith Korb","doi":"10.1016/j.cois.2025.101401","DOIUrl":"10.1016/j.cois.2025.101401","url":null,"abstract":"<div><div>Termites are social cockroaches that evolved eusociality independently from social Hymenoptera (ants, bees, and wasps). Thus, they are diploid organisms, and this has consequences for the occurrence of conflict in termites. Here, I outline the potential for conflict in termites and summarise studies that tested its actual occurrence. In termites, conflicts over the sex ratio, which are typical for haplodiploid social Hymenoptera, are generally absent. All else equal, in monogamous termite colonies, no genetic conflict exists over one’s own reproduction versus helping to raise siblings. Potential for conflict in termites mainly arises due to two main causes: nonmonogamy of colonies and options for colony inheritance by workers. Nonmonogamy occurs when colonies are founded by more than one pair of reproductives (mainly in the species-rich Termitidae with largely sterile workers) or due to fusion of neighbouring colonies (mainly in wood-dwelling termites with totipotent workers). Nonmonogamy of colonies could favour kin-discriminatory behaviour, but, like in social Hymenoptera, evidence for nepotism is rare. Conflict over inheritance of the natal breeding position commonly arises in species with nonsterile workers, which develop into (neotenic) replacement reproductives and inbreed when their king or queen dies. Conflict over inheritance seems to be widespread, yet conflict resolution mechanisms may have evolved, which might include the evolution of worker sterility. Generally, few experimental data exist for termites; more research is required for firm conclusions. Such studies should consider the strong interaction between workers’ reproductive potential (which varies from totipotent to sterile), power to control their own caste fate, and ecology.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"71 ","pages":"Article 101401"},"PeriodicalIF":5.8,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144301311","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}

引用次数: 0

Chromosomal rearrangements in mosquitoes: from micro- to macroevolution 蚊子的染色体重排：从微观到宏观进化。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-06-01 DOI: 10.1016/j.cois.2025.101393

Maria V Sharakhova , Igor V Sharakhov

{"title":"Chromosomal rearrangements in mosquitoes: from micro- to macroevolution","authors":"Maria V Sharakhova , Igor V Sharakhov","doi":"10.1016/j.cois.2025.101393","DOIUrl":"10.1016/j.cois.2025.101393","url":null,"abstract":"<div><div>Chromosomal rearrangements are believed to play a critical role in shaping the eco-evolutionary dynamics of diverse organisms, including mosquitoes. The availability of high-quality genome assemblies of multiple mosquito species has revolutionized the study of these rearrangements. Researchers can now employ genomic approaches to identify chromosomal rearrangements and gain new insights into their role in both microevolutionary and macroevolutionary processes. Autosomal inversions are emerging as possible key drivers of adaptation in mosquitoes. By maintaining standing genetic variation, inversions enable mosquito populations to rapidly adapt to environmental pressures, including insecticide-based vector control methods. X-chromosomal inversions may also play a role in speciation by reducing gene flow between diverging populations. Since mosquitoes are primary vectors of many human diseases, understanding the genomic basis of their adaptation and evolution is important from an epidemiological perspective. Studying chromosomal rearrangements can help identify chromosomal regions associated with adaptation to environmental stresses or insecticide resistance, thereby improving the efficacy of disease management programs.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"71 ","pages":"Article 101393"},"PeriodicalIF":5.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144215126","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}

引用次数: 0

Chemosensory and behavioral effects of Methoprene, a commonly used juvenile hormone analog and insect pesticide 甲基戊二烯的化学感觉和行为效应，一种常用的少年激素类似物和杀虫剂。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-05-28 DOI: 10.1016/j.cois.2025.101392

Tiphaine PM Bailly , Philip Kohlmeier

引用次数: 0

Editorial overview: Innovative approaches to insect conservation in the face of global challenges 面对全球挑战的昆虫保护创新方法。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-05-26 DOI: 10.1016/j.cois.2025.101391

Toke T Høye , Eliza M Grames

引用次数: 0

The effect of biogenic amines in the neuromodulation of insect social behavior 生物胺在昆虫社会行为神经调节中的作用。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-05-22 DOI: 10.1016/j.cois.2025.101390

Francesca Barbero, Luca P Casacci

{"title":"The effect of biogenic amines in the neuromodulation of insect social behavior","authors":"Francesca Barbero, Luca P Casacci","doi":"10.1016/j.cois.2025.101390","DOIUrl":"10.1016/j.cois.2025.101390","url":null,"abstract":"<div><div>Interactions among colony members in insect societies involve a wide range of behaviors, including collective defense, recruitment, foraging, and parental care. Despite significant advances in research, our understanding of how variations in neuroanatomical structure and physiological conditions drive changes in behavior remains incomplete. This review examines the critical role of biogenic amines in modulating social behaviors in insects.</div><div>We highlight recent findings that demonstrate how these molecular messengers interact with hormonal signaling pathways, affecting essential colony traits such as development, fertility, reproduction, and caste differentiation. Caste-specific adaptations are evident in the brains of eusocial species. Key insights suggest that the aminergic system is fundamental for the transition from solitary to social structures. Research on insect brain architecture indicates that social evolution has led to changes in neural circuits rather than simply an increase in brain size.</div><div>Besides regulating intracolony dynamics, biogenic amines significantly influence interactions between social insects and other species. These findings may challenge established notions of mutualism, such as pollination or other plant–insect interactions, suggesting that some behaviors could result from brain manipulation via aminergic control.</div><div>We argue that understanding the complex interplay of various biogenic amines and other molecular messengers is essential for comprehending the neuroendocrine signaling mechanisms that underlie insect social structures. By synthesizing recent findings and examples, this review provides an overview of how biogenic amines contribute to the evolution of social behaviors in insects, offering insights for future research in this field.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"71 ","pages":"Article 101390"},"PeriodicalIF":5.8,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144141633","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}

引用次数: 0

Editorial overview: Current Opinion of Insect Science turns 10: updates to fields covered 编辑的事情。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-05-14 DOI: 10.1016/j.cois.2025.101387

Bryony C Bonning , Jérôme Casas

引用次数: 0

Editorial overview: Adaptive genomic of economically important insects 编辑概述：经济上重要昆虫的适应性基因组。

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-05-13 DOI: 10.1016/j.cois.2025.101386

Alberto S Corrêa , Andy P Michel , Diogo C Cabral-de-Mello

引用次数: 0

Origin of eusociality in termites: was genetic monogamy essential? 白蚁群居性的起源：遗传一夫一妻制是必要的吗？

IF 5.8 1区农林科学

Current opinion in insect science Pub Date : 2025-05-13 DOI: 10.1016/j.cois.2025.101388

Christine A Nalepa , Nathan Lo , Kiyoto Maekawa

{"title":"Origin of eusociality in termites: was genetic monogamy essential?","authors":"Christine A Nalepa , Nathan Lo , Kiyoto Maekawa","doi":"10.1016/j.cois.2025.101388","DOIUrl":"10.1016/j.cois.2025.101388","url":null,"abstract":"<div><div>A prevalent hypothesis is that ‘strict genetic monogamy’ was a universal prerequisite for the origin of eusociality in Hymenoptera and Isoptera. Termites, however, do not fit easily into this scenario, particularly since the sister group of termites, the wood-feeding cockroach <em>Cryptocercus</em>, was recently found to be socially but not genetically monogamous. Termites likely evolved from large, physically robust, obligately subsocial cockroaches in an ecological setting where nitrogen conservation was prioritized. The shift to eusociality can originate from such a starting point via sequential delegation of brood care and defensive parental duties to young alloparents and soldiers, respectively, facilitated by reallocation of available nitrogenous resources. Each social transition was dependent on the prior state, and the final step, the shift from parental defense to origination of a soldier caste, coevolved with a decrease in parental body size and cuticular investment, thus freeing nitrogen for channeling into parental reproduction and cuticular armoring of soldiers. One consequence of this reallocation of critical reserves, however, was on the mating system: the now smaller, vulnerable alates were subjected to relentless predation pressure during dispersal and colony foundation. Swarming, tandem running, hasty mate choice, and immediate and permanent sequestration can be viewed as countermeasures to this selection pressure, enforcing genetic monogamy. We propose that any genetic monogamy detected in incipient colonies of extant termites may be a consequence, rather than a cause, of the initial transition to eusociality; if so, it is a derived mating system that may be a fitness cost in termite evolution.</div></div>","PeriodicalId":11038,"journal":{"name":"Current opinion in insect science","volume":"70 ","pages":"Article 101388"},"PeriodicalIF":5.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144076630","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}

引用次数: 0