Insect Science最新文献_第6页

Prostaglandin E2 (PGE2) signaling regulates fluid excretion and uric acid metabolism in the mosquito Anopheles gambiae. 前列腺素E2 （PGE2）信号调节冈比亚按蚊的体液排泄和尿酸代谢。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-25 DOI: 10.1111/1744-7917.70367

Hyeogsun Kwon, David R Hall, Houda O Maaroufi, Ryan C Smith

{"title":"Prostaglandin E2 (PGE2) signaling regulates fluid excretion and uric acid metabolism in the mosquito Anopheles gambiae.","authors":"Hyeogsun Kwon, David R Hall, Houda O Maaroufi, Ryan C Smith","doi":"10.1111/1744-7917.70367","DOIUrl":"10.1111/1744-7917.70367","url":null,"abstract":"Prostaglandin E2 (PGE2) is a bioactive lipid mediator with essential roles in insect physiology, immunity, and reproduction. However, PGE2 function in mosquitoes remains poorly understood, particularly given that mosquito physiology is uniquely shaped by the metabolic and osmotic demands of blood feeding. Herein, we investigate the temporal expression of the PGE2 receptor (PGE2R) in the Malpighian tubules and hindgut of Anopheles gambiae, examining its role in fluid excretion and uric acid metabolism after PGE2 administration and blood feeding. PGE2R expression is upregulated at 24 h and 48 h post-blood feeding in Malpighian tubules and the hindgut, suggesting potential roles in metabolic waste detoxification. PGE2 treatment induced fluid excretion and enhanced hindgut contraction frequency in naïve mosquitoes. Immunolocalization experiments reveal that PGE2R is localized to principal cell nuclei in the Malpighian tubules following blood feeding, suggesting that PGE2 signaling may modulate transcriptional expression associated with nitrogenous waste metabolism. Additional experiments demonstrate that PGE2 signaling influences urate oxidase expression in mosquito tissues, most notably the Malpighian tubules, leading to uric acid accumulation as a potential antioxidant defense mechanism or to prevent further oxidative stress after blood ingestion. Collectively, our findings uncover a previously unrecognized role of PGE2 signaling in regulating osmotic balance and metabolic homeostasis in mosquitoes following blood feeding.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149060714","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

Temporal overlap and efficient termite exploitation characterize the interaction between an earwig predator and a subterranean termite. 土蜈蚣捕食者和地下白蚁之间的相互作用具有时间重叠和有效的白蚁利用特征。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-23 DOI: 10.1111/1744-7917.70365

Zhengxiong Jiang, Yue Zhang, Xiangtuan Chen, Weimin Wu, Yuxiang Ren, Xuyang Wang, Xiaonan Zhang, Aiming Zhou, Qiuying Huang

{"title":"Temporal overlap and efficient termite exploitation characterize the interaction between an earwig predator and a subterranean termite.","authors":"Zhengxiong Jiang, Yue Zhang, Xiangtuan Chen, Weimin Wu, Yuxiang Ren, Xuyang Wang, Xiaonan Zhang, Aiming Zhou, Qiuying Huang","doi":"10.1111/1744-7917.70365","DOIUrl":"https://doi.org/10.1111/1744-7917.70365","url":null,"abstract":"Subterranean termites constitute a major and nutrient-rich resource in soil food webs, yet their exploitation by predators is constrained by cryptic nest architecture and collective social defenses. How predators access or exploit termite resources under these constraints remains poorly understood. Here, we combined DNA metabarcoding, microscopic gut contents examination, temporal niche analysis, functional response assays, and microcosm bioassays to investigate the predatory association between the earwig Gonolabis marginalis and the subterranean termite Odontotermes formosanus. Molecular dietary analysis, supported by the recovery of masticated termite sclerites from predator guts, showed that termites were the largest detected dietary component, accounting for 41.78% of the relative sequence abundance in field-collected samples. Community-level analyses revealed strong temporal niche overlap between the monthly abundance patterns of G. marginalis and O. formosanus during the sampling period. Functional response analysis showed that adult earwigs had shorter prey-handling times and higher theoretical predation capacities. Microcosm bioassays further showed that predatory effects occurred across sand, loam, and clay loam, although suppression varied with soil texture. Together, these results indicate that G. marginalis efficiently exploits subterranean termite prey, with the observed temporal overlap potentially increasing encounter opportunities, efficient prey handling facilitating exploitation after encounters, and predatory effects occurring across contrasting soil textures under controlled laboratory conditions. This study provides molecular and ecological evidence for predator-prey interactions in subterranean soil food webs.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149024688","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

Artificial feeding-based oral secretion collection system and multi-omics analysis reveal insecticidal saliva and salivary proteome in Orius nagaii. 基于人工饲养的口腔分泌物收集系统和多组学分析揭示了日本稻螟的杀虫唾液和唾液蛋白质组。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-22 DOI: 10.1111/1744-7917.70354

Chengxing Wang, Yujuan Huang, Zhenjuan Yin, Jin Ge, Shan Zhao, Jianhua Huang, Ruijuan Wang, Xiaoyan Dai, Yan Liu, Long Su, Hao Chen, Li Zheng, Yifan Zhai

{"title":"Artificial feeding-based oral secretion collection system and multi-omics analysis reveal insecticidal saliva and salivary proteome in Orius nagaii.","authors":"Chengxing Wang, Yujuan Huang, Zhenjuan Yin, Jin Ge, Shan Zhao, Jianhua Huang, Ruijuan Wang, Xiaoyan Dai, Yan Liu, Long Su, Hao Chen, Li Zheng, Yifan Zhai","doi":"10.1111/1744-7917.70354","DOIUrl":"https://doi.org/10.1111/1744-7917.70354","url":null,"abstract":"Orius nagaii is an important predatory natural enemy in agricultural pest management. In this study, we established an artificial feeding system to collect oral secretions (OS) from O. nagaii and demonstrate that microinjection of either oral secretions (OS) or salivary reservoir extracts (SRE) into Ostrinia furnacalis larvae significantly increases larval mortality, indicating that the saliva of this natural enemy insect contains bioactive factors with insecticidal activity. Comparative proteomic analysis of OS and SRE identified 328 overlapping proteins as candidate salivary proteins. Integration of this candidate dataset with the salivary gland transcriptome enabled the systematic identification of 311 salivary proteins, covering the complete trajectory from synthesis in the salivary gland (SG) and storage in the salivary reservoir to release during feeding. Of these, 112 proteins are unique to O. nagaii, including several venom-associated candidates potentially involved in prey subjugation. This study provides a foundational resource for functional studies of salivary proteins in predatory natural enemies and offers potential molecular targets for developing novel biopesticides and genetic improvement of biological control agents.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149024718","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

Engineering silkworm-spider composite silk via the fibroin light chain fusion system in Bombyx mori. 家蚕丝素轻链融合系统的工程蚕丝-蜘蛛复合丝。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-22 DOI: 10.1111/1744-7917.70362

Shihua Yu, Xinyue Cui, Ning Jiang, Xiaoyan Dai, Xiaogang Ye, Xiangping Dai, Guijun Zhang, Boxiong Zhong

{"title":"Engineering silkworm-spider composite silk via the fibroin light chain fusion system in Bombyx mori.","authors":"Shihua Yu, Xinyue Cui, Ning Jiang, Xiaoyan Dai, Xiaogang Ye, Xiangping Dai, Guijun Zhang, Boxiong Zhong","doi":"10.1111/1744-7917.70362","DOIUrl":"https://doi.org/10.1111/1744-7917.70362","url":null,"abstract":"Spider silk possesses excellent material properties and demonstrates significant potential for application in the fields of biomedicine and the military. However, the cannibalistic and territorial nature of spiders precludes farm-based mass production of spider silk. To overcome this limitation, we employed targeted genome editing to enable the biosynthetic production of spider silk proteins in silkworm silk gland bioreactors. Specifically, one fold and double repeats of the cre-MaSp1 gene from the black widow spider were inserted into the 3' end of the silkworm FibL gene via site-directed integration using transcription activator-like effector nuclease (TALEN)-mediated homology-directed repair. By introducing the T2A self-cleavage peptide, which allows normal cross-linking of intact FibL to FibH, cre-MaSp1 are efficiently secreted into the cocoon shell, while mitigating the damage to cocoon economic traits caused by previous FibL direct fusion. The tensile test results showed that the expression of the cre-MaSp1 gene was beneficial for changing the maximum strain of the resulting transgenic silk fibers. Notably, as the number of repeats increases, the maximum strain and stress of the transgenic silk shows a rising trend, pointing the way toward improved mechanical properties of the silk. Furthermore, AlphaFold 3 prediction and Fourier-transform infrared (FTIR) spectroscopic analyses indicated that the transgenic silk contained a higher content of α-helix and random coil structures than wild-type silk. RNA sequencing results further suggested that the integration of the cre-MaSp1 gene into the FibL locus of the silkworm interfered with ribosome biogenesis. This study provides a promising strategy for the biofabrication of silkworm-spider composite silk.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149024709","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

Egg volatiles of oak silkworm mediate defense against parasitoid wasps. 柞蚕卵挥发物介导对寄生蜂的防御。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-21 DOI: 10.1111/1744-7917.70355

Hai-Xia Zhan, Feng-Qi Li, Rui Tang, Guy Smagghe, Haneef Tariq, Su Wang, Lian-Sheng Zang

{"title":"Egg volatiles of oak silkworm mediate defense against parasitoid wasps.","authors":"Hai-Xia Zhan, Feng-Qi Li, Rui Tang, Guy Smagghe, Haneef Tariq, Su Wang, Lian-Sheng Zang","doi":"10.1111/1744-7917.70355","DOIUrl":"https://doi.org/10.1111/1744-7917.70355","url":null,"abstract":"Most insects protect their eggs from natural enemies via physical coverings, yet defensive mechanisms of exposed eggs (i.e., those without such coverings), particularly those lacking toxins, remain largely unexplored. The oak silkworm (Antheraea pernyi) lays such exposed eggs, yet these eggs exhibit less parasitism than manually extracted washed eggs (MUWE) under laboratory conditions, raising the question of whether this defense operates in nature and how it functions. Here, field experiments showed that naturally laid unwashed eggs had significantly lower parasitism by three parasitoid species than MUWE. Behavioral parasitism assays showed the specialist M. trabalae nearly avoided intact naturally laid unwashed eggs (≤2.5%), while generalist A. japonicus displayed fewer contacts and oviposition attempts. Y-tube olfactometry verified egg-derived volatiles mediate this repellency. Gas chromatography-mass spectrometry analysis identified 2-ethyl-1-hexanol (2EH) as a key volatile unique to naturally laid eggs. Electroantennography confirmed dose-dependent antennal responses to 2EH in both species. Y-tube assays showed that 2EH repels A. japonicus at ≥ 5 µg and M. trabalae at doses as low as 500 ng. Crucially, supplementing MUWE with 2EH greatly decreased the parasitism success in both parasitoids. This study reveals that egg-associated 2EH acts as a chemical shield protecting exposed eggs from parasitoids, demonstrating that exposed eggs are not inherently vulnerable but rather employ volatile-mediated defense against natural enemies. These findings advance our understanding of insect egg defense strategies, illuminate the evolutionary arms race between hosts and parasitoids, and establish a theoretical foundation for optimizing natural enemy mass rearing and developing behavioral regulators in biological control.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149012176","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

Lipid raft protein Flotillin 2 facilitates alphavirus infection through promoting viral release. 脂筏蛋白Flotillin 2通过促进病毒释放促进甲病毒感染。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-17 DOI: 10.1111/1744-7917.70361

Tianyu Guan, Yuting Zhang, Fengyu Wang, Hong Lu, Liya Wei, Wan Zhao, Feng Cui

{"title":"Lipid raft protein Flotillin 2 facilitates alphavirus infection through promoting viral release.","authors":"Tianyu Guan, Yuting Zhang, Fengyu Wang, Hong Lu, Liya Wei, Wan Zhao, Feng Cui","doi":"10.1111/1744-7917.70361","DOIUrl":"https://doi.org/10.1111/1744-7917.70361","url":null,"abstract":"Alphaviruses are transmitted to vertebrate hosts via hematophagous arthropod vectors, posing major public health challenges, yet the mechanisms by which they infect vector mosquitoes remain unclear. In this study, we utilized the Sindbis virus (SINV), a model alphavirus, to investigate the infection processes in mosquito and mammalian cells. One member of the Flotillin family of lipid-raft protein from Culex quinquefasciatus, CqFlotillin 2, was found to bind SINV glycoprotein E2 and to facilitate SINV infection in C. quinquefasciatus cell line and live mosquitoes, as well as facilitating viral transmission to mice via mosquito vectors. Notably, instead of affecting viral attachment to cell surface, entry into cells, or replication, CqFlotillin 2 facilitates viral release from cells and intercellular spread, which positively correlates to the formation of filopodial extension. This function is conserved among Flotillin 2 homologs in promoting SINV infection in various mosquito and mammal host cells. Furthermore, Flotillin 2 promotes the infection of another alphavirus, Semliki Forest virus (SFV), in mosquito and mammalian cells by facilitating viral release from cells. This work suggests Flotillin 2 as a potential cellular co-factor implicated in alphavirus release and highlights Flotillin 2 as a promising target for controlling alphavirus infection and transmission.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982053","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

Untangling parasitoid competition: A three-dimensional framework for parasitoid interactions in biological control. 解缠寄生蜂竞争：生物防治中寄生蜂相互作用的三维框架。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-16 DOI: 10.1111/1744-7917.70357

Xu Chen, Tian-Hao Li, Yong-Ming Chen, Lian-Sheng Zang

{"title":"Untangling parasitoid competition: A three-dimensional framework for parasitoid interactions in biological control.","authors":"Xu Chen, Tian-Hao Li, Yong-Ming Chen, Lian-Sheng Zang","doi":"10.1111/1744-7917.70357","DOIUrl":"https://doi.org/10.1111/1744-7917.70357","url":null,"abstract":"Parasitoid wasps are major biological-control agents, but their contribution to pest suppression is shaped by more than host attack. In agroecosystems, released and resident parasitoids interact with conspecifics, heterospecific parasitoids, predators, hyperparasitoids, alternative hosts, non-target species, and habitat resources. This review synthesizes parasitoid competition from a biological-control perspective and proposes a three-dimensional framework that classifies competitive interactions by competitor level, ecological arena, and interaction mode. The framework integrates intraspecific and interspecific competition, extrinsic and intrinsic interactions, community-mediated effects, and exploitative, interference, apparent, and mixed pathways. We emphasize that superparasitism and multiparasitism are not only behavioral or developmental phenomena, but also operational links between adult oviposition decisions, within-host outcomes, and field-level control. Competition can reduce effective parasitism, offspring fitness, parasitoid establishment, and native-guild persistence when niche overlap is high, yet its costs may be offset when species partition host stages, microhabitats or seasonal windows. We argue that biological-control success should be evaluated through a hierarchy of outcomes, including host mortality, parasitoid emergence, offspring quality, sex ratio, population persistence, pest-density trajectories, crop protection, and non-target risk. Finally, we translate this synthesis into management principles for species selection, release timing, release density, release ratio, and compatibility with other integrated pest management (IPM) tools. Understanding parasitoid competition is therefore essential for designing biological-control programs that are predictable, resilient, and ecologically safe.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982109","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

A horizontally transferred bacterial gene for pantothenic acid biosynthesis regulates diapause and reproduction in the spider mite Amphitetranychus viennensis. 一种水平转移的细菌泛酸生物合成基因调控了维也纳双翅螨的滞育和繁殖。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-16 DOI: 10.1111/1744-7917.70356

Meibin Liu, Yifei Wang, Yikang Ren, Fan Yang, Meifeng Ren, Qin Yu, Xuguo Zhou, Zezhong Yang, Jing Yang

{"title":"A horizontally transferred bacterial gene for pantothenic acid biosynthesis regulates diapause and reproduction in the spider mite Amphitetranychus viennensis.","authors":"Meibin Liu, Yifei Wang, Yikang Ren, Fan Yang, Meifeng Ren, Qin Yu, Xuguo Zhou, Zezhong Yang, Jing Yang","doi":"10.1111/1744-7917.70356","DOIUrl":"10.1111/1744-7917.70356","url":null,"abstract":"Horizontal gene transfer (HGT) has contributed substantially to the evolution of arthropod genomes, yet the functional significance of many horizontally acquired genes remains poorly understood. The hawthorn spider mite, Amphitetranychus viennensis, is a devastating agricultural pest whose high fecundity and overwintering diapause afford its exceptional ecological resilience. Through a genome-wide screen, we identified 37 high-confidence horizontally transferred genes (HTGs) in A. viennensis. Among these candidates, we prioritized AvPBL, a gene encoding pantothenate-β-alanine ligase, for functional characterization because it controls the rate-limiting step of a distinctly non-metazoan pantothenic acid (vitamin B5) biosynthesis pathway. RNAi-mediated suppression of AvPBL significantly reduced transcript abundance and endogenous pantothenic acid levels, triggering a 23.7% reduction in cumulative fecundity and severely compromising the mites' ability to enter winter diapause. Importantly, exogenous pantothenic acid supplementation rescued these reproductive and diapause defects, directly linking the observed phenotypes to the disruption of pantothenic acid biosynthesis. Our results demonstrate that the horizontally transferred bacterial gene AvPBL has been functionally integrated into the endogenous metabolic network of A. viennensis, playing a critical role in vitamin B5 biosynthesis, reproduction, and diapause regulation. These findings provide direct evidence that horizontally acquired metabolic genes can shape key life-history traits and drive adaptive evolution in arthropods.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982648","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

Sex pheromone communication and its regulation by the sex determination pathway in cockroaches. 蜚蠊性别决定途径中性信息素的交流及其调控。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-16 DOI: 10.1111/1744-7917.70363

Yang Yang, Hui Zhou, Na Li, Sheng Li, Nan Chen

{"title":"Sex pheromone communication and its regulation by the sex determination pathway in cockroaches.","authors":"Yang Yang, Hui Zhou, Na Li, Sheng Li, Nan Chen","doi":"10.1111/1744-7917.70363","DOIUrl":"10.1111/1744-7917.70363","url":null,"abstract":"Sexual communication in animals orchestrates a series of interactive behaviors from locating and recognizing potential partners to courtship and final mating decisions and is thus critical for sexual reproduction and population fitness. Highly efficient communication between the sexes requires not only the production and emission of species-specific signals but also their precise detection and interpretation by the receiving individuals. Cockroaches, as one of the most evolutionarily ancient and successful group of insects, are quintessential chemical communicators that rely heavily on sex pheromones for sexual communication. They have long served as excellent model organisms in studies of chemical ecology. Although the biochemical characterization of sex pheromones in several species was largely accomplished during the last century, the past two decades have witnessed remarkable progress in understanding the molecular genetics of sex pheromone communication and its regulation, particularly driven by functional genomics. This review first provides an updated comparative survey of the pheromone components identified across distinct taxa. We then synthesize, but not limited to, recent advances in identification of key molecules controlling sex pheromone production, characterization of candidate chemosensory receptors and their neural processing pathways, and the regulatory roles of the sex determination cascade in shaping sexually dimorphic traits in both pheromone production and perception. Finally, we highlight key scientific questions that remain unsolved and propose future directions aimed at extending our mechanistic understanding of cockroach pheromone communication, as well as at developing behavior-based pest management strategies.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982046","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

Molecular phylogenetics provides insights into biogeography and character evolution in the assassin bug tribe Saicini (Hemiptera: Reduviidae: Emesinae). 分子系统遗传学研究了刺客蝽族（半翅目：刺客蝽科：刺客蝽科）的生物地理学和特征进化。

IF 3.7 1区农林科学

Insect Science Pub Date : 2026-09-14 DOI: 10.1111/1744-7917.70350

Zhuo Chen, Yunfei Wu, Tianyou Zhao, Hu Li, Wanzhi Cai

{"title":"Molecular phylogenetics provides insights into biogeography and character evolution in the assassin bug tribe Saicini (Hemiptera: Reduviidae: Emesinae).","authors":"Zhuo Chen, Yunfei Wu, Tianyou Zhao, Hu Li, Wanzhi Cai","doi":"10.1111/1744-7917.70350","DOIUrl":"https://doi.org/10.1111/1744-7917.70350","url":null,"abstract":"Reduviidae (assassin bugs) are a species-rich group of terrestrial predatory insects, exhibiting remarkable diversity in foreleg morphology. The tribe Saicini (Hemiptera: Reduviidae: Emesinae) displays various morphological modifications of the foreleg. Although the definition and classification of Saicini have undergone considerable changes in recent years, the higher-level phylogeny and evolutionary history of the tribe remain poorly understood. Here, we generated a molecular dataset for Saicini to investigate its phylogeny, historical biogeography and foreleg character evolution. Our phylogenetic results corroborate the monophyly of Saicini and its two subtribes, Saicina and Tagalina, and reveal two new genera: Montopolytoxus gen. n. and Webbisaica gen. n. Molecular dating and biogeographic analyses suggest that the crown group of Saicini originated in the Late Cretaceous (ca. 72.05 Ma), followed by multiple transcontinental dispersal events that shaped the current tropicopolitan distribution of the tribe. Ancestral state reconstruction of six foreleg characters indicates that the ancestral Saicini possessed a moderately elongate procoxa, a curved protibia and a short protarsomere I. The presence of tuberculate setae on the foreleg is inferred to be the ancestral condition for Tagalina.","PeriodicalId":13618,"journal":{"name":"Insect Science","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148963093","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