Journal of Insect Science最新文献_第3页

Changes in life history and morphological traits over 8 generations in the brown marmorated stink bug (Hemiptera: Pentatomidae) under mass-rearing conditions. 大规模饲养条件下褐纹蝽8代生活史和形态特征的变化

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf054

Giacomo Bulgarini, Clara Frasconi Wendt, Manfred Wolf, Angelika Gruber, Leonardo Calabrò, Antonio Pignalosa, Stefanie Fischnaller

{"title":"Changes in life history and morphological traits over 8 generations in the brown marmorated stink bug (Hemiptera: Pentatomidae) under mass-rearing conditions.","authors":"Giacomo Bulgarini, Clara Frasconi Wendt, Manfred Wolf, Angelika Gruber, Leonardo Calabrò, Antonio Pignalosa, Stefanie Fischnaller","doi":"10.1093/jisesa/ieaf054","DOIUrl":"10.1093/jisesa/ieaf054","url":null,"abstract":"Developing and establishing a permanent insect population under mass-rearing conditions is challenging, but it offers the opportunity to collect and compare life history, physiological, morphological, and behavioral traits in real-time and over multiple generations. Halyomorpha halys (Stål, 1855) (Hemiptera: Pentatomidae), a serious agricultural insect pest in northern Italy, was used to establish a permanent mass-rearing protocol under controlled abiotic conditions. The study aimed to evaluate the impact of permanent laboratory rearing on various life history and morphological traits over 8 generations. Development time and developmental success rate of the eggs and nymphal stages, fecundity, mortality rate and body size of the adults were documented. In general, a significant variability was observed in both developmental success rate and developmental time for eggs and juvenile stages, although without an obvious trend. In adults, on the other hand, a common trend in fecundity, number of egg masses and survival was observed. All 3 parameters exhibited a marked decline beginning in the second generation, followed by a significant recovery starting from the seventh generation, indicating potential laboratory adaptation. The body size, on the other hand, showed a slight decrease from the second generation that remained almost constant in subsequent generations. While the results demonstrate the clear success of a continuous H. halys mass-rearing, they also show the current challenges and limits of rearing this invasive insect species under laboratory conditions over several generations without the addition of new individuals.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12082456/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144078550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mass-rearing and life history of Cyclocephala barrerai (Coleoptera: Melolonthidae) and congeneric species. 小圆头蝇（鞘翅目：圆头蝇科）及其同属种的群居繁殖及生活史。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf050

Abraham Sanchez-Cruz, Patricia Villa-Ayala, Alfredo Jiménez-Pérez

{"title":"Mass-rearing and life history of Cyclocephala barrerai (Coleoptera: Melolonthidae) and congeneric species.","authors":"Abraham Sanchez-Cruz, Patricia Villa-Ayala, Alfredo Jiménez-Pérez","doi":"10.1093/jisesa/ieaf050","DOIUrl":"10.1093/jisesa/ieaf050","url":null,"abstract":"A major challenge in studying the biology of the Melolonthidae has been the lack of a consistent supply of organisms with known characteristics. This study aimed to develop a methodology for mass-rearing a Cyclocephala barrerai Martínez (Coleoptera: Melolonthidae) colony over several laboratory generations. The mass-rearing was initiated with eggs from wild-collected adults; each developmental instar was reared under conditions suited to their environmental and nutritional needs. Insect survival, egg-adult cycle length, sex ratio, adult weight, and number of eggs laid by each female were recorded for each generation. The morphology of mass-rearing organisms was compared to that of the wild-collected specimens. A second cohort of organisms from the original generation was reared under identical conditions and their survival, duration, and morphometry of each larval instar were recorded weekly. These data were then compared to those from the original group to assess the impact of constant manipulation during the larval instar. The mass-rearing methodology proposed in this work successfully reared 3 generations of C. barrerai with an overall average egg-adult survival rate of 66.6%. The egg-adult cycle length, proportion of females and males, and average weight differed among generations. The F1 organisms presented similar morphometrics to those collected in the field. Manipulation significantly reduced insect survival. Mass-rearing of C. barrerai facilitates a comprehensive study of its biology and may establish the species as a model for the Melolonthidae. This methodology establishes the foundations for rearing congeneric species in the laboratory.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12132037/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nuclear genome assembly of Leucinodes orbonalis (Lepidoptera: Crambidae) collected from the Philippines. 菲律宾褐光拟盲蝽（鳞翅目：蛾科）的核基因组组装。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf066

Joshua B Despabiladeras, Jimuel Adrian M Punzalan, Ma Anita M Bautista

{"title":"Nuclear genome assembly of Leucinodes orbonalis (Lepidoptera: Crambidae) collected from the Philippines.","authors":"Joshua B Despabiladeras, Jimuel Adrian M Punzalan, Ma Anita M Bautista","doi":"10.1093/jisesa/ieaf066","DOIUrl":"10.1093/jisesa/ieaf066","url":null,"abstract":"The eggplant fruit and shoot borer (Leucinodes orbonalis Guenée) is a devastating lepidopteran pest of the eggplant (Solanum melongena L.), causing significant economic losses. Reference genomes aid in understanding insect pest biology and can guide pest management programs. For eggplant fruit and shoot borer, however, genomic resources are scarce; hence, this study presents an annotated genome assembly of the Philippine eggplant fruit and shoot borer genome using Illumina short reads. The 480,399,388 bp long assembly contained 31,568 contigs with an N50 of 204,698 bp and a BUSCO score of 96.5%. Annotation of repeat elements indicates that the eggplant fruit and shoot borer genome comprises 38.50% interspersed repeats, which are mostly unclassified repeats. Functional RNA annotation revealed 1,310 functional RNA genes consisting primarily of tRNAs, rRNAs, snRNAs, and miRNAs. Protein structural annotation predicted a total of 12,671 genes. Annotation using a Cluster of Orthologous groups indicates proteins belonging to group S (unknown), group T (signal transduction), group O (posttranslational modification), and group K (transcription). Of the proteins belonging to group S, PFAM analysis revealed proteins containing chitin, juvenile hormone, odorant and pheromone-binding protein domains, and zinc finger motifs. Further analysis of the predicted proteins indicates that the EFSB possesses conserved biochemical machineries in insect chemosensation, detoxification, and hormone biosynthesis and reception. Variation profiling, on the other hand, detected 11,103,848 SNPs and 3,031,155 indels possibly occurring in Philippine eggplant fruit and shoot borer. Overall, the genome assembly and annotation generated from this study contribute to establishing genome references, and may aid in understanding the EFSB through future studies aimed at its effective control.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12205365/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144528329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling spatial acuity improves trap capture of western flower thrips, Frankliniella occidentalis (Thysanoptera: Thripidae). 空间灵敏度模型提高了西部花蓟马Frankliniella occidentalis（蓟翅目：蓟科）的捕获。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf049

Natalie S Roberts, Madelyn Jones, Farooq Shah, Tariq M Butt, William L Allen

{"title":"Modeling spatial acuity improves trap capture of western flower thrips, Frankliniella occidentalis (Thysanoptera: Thripidae).","authors":"Natalie S Roberts, Madelyn Jones, Farooq Shah, Tariq M Butt, William L Allen","doi":"10.1093/jisesa/ieaf049","DOIUrl":"10.1093/jisesa/ieaf049","url":null,"abstract":"Colored sticky traps are used for management of many common agricultural insect pests. Several recent studies have shown that traps can be improved by systematically considering properties of color vision for the target species. In the current study, we extend this approach to spatial vision, using information about the interommatidial angle of an agriculturally important insect pest, western flower thrips Frankliniella occidentalis (Pergande), to predict spatial resolution capabilities for a yellow flower pattern across a range of viewing distances. We tested the hypothesis that pattern sizes matching the spatial resolution capabilities of western flower thrips at a given viewing distance would outperform traps with mismatched pattern sizes by measuring the number of western flower thrips caught on sticky traps containing differently sized flower patterns resolvable at 5, 10, or 20 cm. We found an interaction between pattern size and viewing distance, with significantly more western flower thrips caught on traps when the predicted resolvable distance of the pattern matched the distance traps were placed from a central release point. We further tested the range over which trap patterns are effective in more complex viewing environments using commercial polytunnels. In polytunnel trials, we found that increasing the resolvable distance of patterns increased western flower thrips capture up to approximately 26 cm, after which western flower thrips capture decreased up to the maximal visible range tested (50 cm) in the absence of additional sensory cues. Together, these results show the utility of considering spatial vision in improving trap performance and offers functional insights to improve pest management in visual trap design.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070478/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144024181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of colony and hive attributes, landscape, and seasonality on occurrence of large hive beetles (Coleoptera: Scarabaeidae) in Taita Taveta County, Kenya. 肯尼亚Taita Taveta县大蜂房甲虫（鞘翅目：金龟甲科）的群落和蜂房属性、景观和季节对发生的影响

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf065

Mbatha B Wambua, Ayuka T Fombong, Kiatoko Nkoba, Gladys K Onyambu, Helen Lydiah Kutima, Sevgan Subramanian, Beatrice T Nganso

{"title":"Influence of colony and hive attributes, landscape, and seasonality on occurrence of large hive beetles (Coleoptera: Scarabaeidae) in Taita Taveta County, Kenya.","authors":"Mbatha B Wambua, Ayuka T Fombong, Kiatoko Nkoba, Gladys K Onyambu, Helen Lydiah Kutima, Sevgan Subramanian, Beatrice T Nganso","doi":"10.1093/jisesa/ieaf065","DOIUrl":"10.1093/jisesa/ieaf065","url":null,"abstract":"Recently, an unexpectedly large number of large hive beetles, Oplostomus haroldi (Witte), was observed in Taita Taveta County (TTC), Kenya, suggesting a potential threat to the apicultural industry. This study investigated the influence of colony and hive attributes, landscape characteristics, and seasonality on the occurrence of O. haroldi within beehives in TTC. Field surveys assessed beetle populations alongside colony strength parameters, environmental variables, and hive types using standard protocols. Our findings revealed significant positive correlations between beetle occurrence and colony phenotypes, such as capped brood, pollen, and honey quantities. Higher beetle populations were also observed in areas with tree cover compared to cropland, and seasonal variation was evident, with beetle populations peaking during rainy seasons. Langstroth hives exhibited higher infestation levels due to larger entrance areas than Kenya Top-Bar hives and other locally made hive types, which have smaller entrances. These findings suggest that reducing hive entrance sizes with entrance reducers could be an effective management option to limit hive invasion by the beetle, thereby protecting colony health and enhancing productivity in Taita.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12204608/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of electropenetrography waveform libraries for Nipaecoccus viridis (Hemiptera: Pseudococcidae) using different tethering materials and monitor settings. 不同系带材料和监测设置对绿针蚧（半翅目：假球虫科）电渗透波形文库的比较。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf063

Emilie P Demard, Elaine A Backus, Lauren M Diepenbrock

{"title":"Comparison of electropenetrography waveform libraries for Nipaecoccus viridis (Hemiptera: Pseudococcidae) using different tethering materials and monitor settings.","authors":"Emilie P Demard, Elaine A Backus, Lauren M Diepenbrock","doi":"10.1093/jisesa/ieaf063","DOIUrl":"10.1093/jisesa/ieaf063","url":null,"abstract":"The hibiscus mealybug, Nipaecoccus viridis (Newstead) is a phloem-feeding pest that was first documented in Florida citrus orchards in 2019. Feeding causes fruit and leaf deformation due to cellular changes in host plant tissues. Field assays suggest that systemic insecticides can disrupt the probing behavior of this phloem feeder. However, the mechanisms involved are poorly understood. The objective of this study was to investigate the feeding interactions of second-third instar N. viridis on Volkamer lemon trees (Citrus volkameriana) using AC-DC Electropenetrography. Since preliminary recordings failed to distinguish phloem salivation from phloem ingestion waveforms, the effects of 3 tethering materials to improve waveform resolution were tested: thick gold wire (25 µm diameter), fine gold wire (12.5 µm diameter), and Wollaston platinum wire (2.5 µm diameter). In addition, a combination of 3 different input resistances (Ri) (amplifier sensitivities) and substrate voltages; 109 Ω with 250 mV; 1010 Ω with 100 mV; and 1013 Ω with 0 mV were compared to create a waveform library. The best-quality signal was obtained with the thick gold wire (25 µm diameter) at Ri 1010 Ω using the loop method of wiring. Wollaston platinum wire impeded nymphal movement, causing increased nonprobing duration and increased time from the start of the recording to the first phloem salivation. Biological interpretations of waveforms are discussed in light of fruit and leaf distortion. Results from this study will allow future work to compare effectiveness of insecticides to prevent such damage.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12202763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144505965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","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 biological characteristics and life table parameters of Plodia interpunctella (Lepidoptera: Pyralidae) reared on different maize varieties. 不同玉米品种饲养点间倍蛾的生物学特性及生命表参数。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf047

Zahra Saeedi, Masumeh Ziaee, Mehdi Esfandiari, Somaiyeh Ghasemzadeh

{"title":"The biological characteristics and life table parameters of Plodia interpunctella (Lepidoptera: Pyralidae) reared on different maize varieties.","authors":"Zahra Saeedi, Masumeh Ziaee, Mehdi Esfandiari, Somaiyeh Ghasemzadeh","doi":"10.1093/jisesa/ieaf047","DOIUrl":"10.1093/jisesa/ieaf047","url":null,"abstract":"The Indianmeal moth, Plodia interpunctella (Hübner) is a major polyphagous pest of stored food products causing serious quantity and quality losses. In this study, the life history of P. interpunctella was evaluated on different maize varieties, including Simon, Valbom, 703, BK, and BC678. The preadult duration for P. interpunctella were 35.5, 43.1, 39.2, 43.4, and 36.8 d on Simon, Valbom, 703, BK, and BC678, respectively. The mean total longevity on Valbom was 52.2 d which was significantly longer than the 41.8 d on Simon (P = 0.012). The developmental period of moths was the most prolonged on Valbom indicating low nutritional suitability of this variety. However, the moths preferred Valbom for oviposition, and more than 132 eggs were laid on this variety. The most intrinsic rate of increase (r) was reported on BC678 and Simon, while the lowest population growth rate was on BK and Valbom. The highest r value on BC678 and Simon could be due to their high moisture and protein content. Based on the shorter preadult, total preoviposition period, mean generation time and higher life table parameters (gross reproductive rate, r, and λ) that occurred on the BC678, make this variety most favorable host for P. interpunctella. The findings highlighted the importance of maize variety selection in managing this pest in stored food products.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12082450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144078552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical transfer of honey bee (Hymenoptera: Apidae) virus sequences to wax by worker traffic and aerosolization. 蜜蜂（膜翅目：蜂科）病毒序列通过工蜂运输和雾化向蜂蜡的机械转移。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf037

Megan J Colwell, Stephen F Pernal, Robert W Currie

{"title":"Mechanical transfer of honey bee (Hymenoptera: Apidae) virus sequences to wax by worker traffic and aerosolization.","authors":"Megan J Colwell, Stephen F Pernal, Robert W Currie","doi":"10.1093/jisesa/ieaf037","DOIUrl":"10.1093/jisesa/ieaf037","url":null,"abstract":"Honey bees (Apis mellifera L.) are of undeniable value to agriculture. However, increased mortality of honey bees, mostly due to winter losses associated with parasites and pathogens, have put strain on the apiculture industry. Advancing our knowledge of honey bee viruses and their interactions within the colony environment is vital in mitigating their effect on honey bee health. Our study examined virus sequences detected on beeswax sampled from empty colonies which died during the previous winter. Based on a cage study using virus-containing bees, we confirmed that the introduction of BQCV sequences to wax foundation was possible through workers walking on, and contacting, comb surfaces (worker traffic). Furthermore, we found that BQCV may aerosolize within an incubator to contaminate wax at detectable levels among independent cages. A second cage study explored the potential effects of virus aerosolization on transmission between groups of adult worker bees within cages, having no direct contact. This experiment did not support aerosol transmission between groups of bees in confined spaces. Further work on waxborne virus transmission within colony environments, and potential effects of aerosolization under a wider array of conditions, is crucial to broadening our knowledge of honey bee virus transmission. Our work also highlights potential dangers for beekeepers re-using equipment from dead colonies.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12096080/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144119470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","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 role of a non-native host plant in altering the seasonal dynamics of Danaus plexippus (Lepidoptera: Nymphalidae) development. 非本地寄主植物在改变丛蝶（鳞翅目：蛱蝶科）发育季节动态中的作用。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf061

James G DuBose, Mackenzie Hoogshagen, Jacobus C de Roode

{"title":"The role of a non-native host plant in altering the seasonal dynamics of Danaus plexippus (Lepidoptera: Nymphalidae) development.","authors":"James G DuBose, Mackenzie Hoogshagen, Jacobus C de Roode","doi":"10.1093/jisesa/ieaf061","DOIUrl":"10.1093/jisesa/ieaf061","url":null,"abstract":"Insect herbivores often experience seasonal fluctuation in food availability, which plays important role in signaling diapause and/or migration. However, the introduction of non-native plants with different seasonal phenologies has the potential to disrupt these dynamics. Some evidence suggests that this may be a developing issue for the annual migration of the monarch butterfly Danaus plexippus (Linnaeus) (Lepidoptera: Nymphalidae). The tropical milkweed Asclepias curassavica (Linnaeus) (Gentianales: Apocynaceae), which does not seasonally senesce to the same extent or rate as native milkweed host plants, has recently been introduced into the North American mainland population. Here, we report an experimental comparison of monarch developmental success when reared on A. curassavica and the native A. incarnata (Linnaeus) (Gentianales: Apocynaceae) in the summer and fall. We found that A. curassavica facilitates monarch development later into their typical migratory and over-wintering season, despite several prolonged periods where the temperature was below requirements for growth and development.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12132033/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating a role for piRNA-associated piwi genes in overcoming host-plant resistance in the soybean aphid, Aphis glycines. 研究pirna相关piwi基因在大豆蚜虫抗宿主植物抗性中的作用。

IF 2.1 3区农林科学

Journal of Insect Science Pub Date : 2025-05-09 DOI: 10.1093/jisesa/ieaf055

Angel Haller, Jelmer W Poelstra, Wirat Pipatpongpinyo, Nathan Kreuter, Jennifer R Wilson, Andy Michel

{"title":"Investigating a role for piRNA-associated piwi genes in overcoming host-plant resistance in the soybean aphid, Aphis glycines.","authors":"Angel Haller, Jelmer W Poelstra, Wirat Pipatpongpinyo, Nathan Kreuter, Jennifer R Wilson, Andy Michel","doi":"10.1093/jisesa/ieaf055","DOIUrl":"10.1093/jisesa/ieaf055","url":null,"abstract":"Natural host-plant resistance provides a sustainable solution to control insect outbreaks but can be limited due to insect counter-adaptation. The exact mechanisms of insect adaptation to host-plant resistance remain unclear in most systems. Some insect adaptations are controlled by epigenetic mechanisms, such as through noncoding RNA. PIWI-interacting RNAs are specific noncoding RNAs that bind with PIWI proteins to control a diverse range of gene regulatory functions, particularly in insects. Previous investigation into aphid PIWI gene copies showed expansion in their abundance compared to other insects, which may suggest PIWI genes have additional functions among aphids. We first characterized PIWI gene evolution through a phylogenetic analysis, then investigated the role of PIWIs by examining gene expression in the soybean aphid (Aphis glycines), a significant insect pest of soybean which has adapted to overcome aphid-resistance in host plants. Our data indicated the presence of three PIWI ortholog groups, as well as taxon-specific gene expansions, with gene copy numbers ranging from 3 to 17 across species. To evaluate a potential role of PIWIs in overcoming host-plant resistance, we measured their gene expression in Ap. glycines with (virulent) and without (avirulent) the ability to survive on aphid-resistant soybean. We found that virulent Ap. glycines have significantly higher expression of 2 PIWI genes (Agl1.1 and Agl1.3) compared to the avirulent biotype. These data suggest that gene regulatory mechanisms related to the PIWI pathway, potentially including piRNAs, are important in aphid systems and may enable adaptation to host-plant resistance.","PeriodicalId":16156,"journal":{"name":"Journal of Insect Science","volume":"25 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12144034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0