Article
Agronomy
Xiaoxiao Wang, Jiangling Fan, Meng Zhou, Ge Gao, Liya Wei, Le Kang
Summary: This study found that photoperiod and temperature are important environmental factors in inducing and terminating diapause in the migratory locust in temperate regions. The most effective conditions for diapause induction were found to be rearing adults under a short photoperiod and treating eggs at a low temperature, while the most effective condition for diapause termination was found to be treating eggs at 13 degrees Celsius for 20 days near the developmental threshold temperature of 15 degrees Celsius.
PEST MANAGEMENT SCIENCE
(2021)
Article
Marine & Freshwater Biology
Konglin Zhou, Ping Du, Zhibing Jiang, Yanbin Tang, Yibo Liao, Jianfang Chen, Lu Shou, Jiangning Zeng
Summary: The study revealed that in Xiangshan Bay, C. abdominalis mainly sustains its population through egg production, with temperature being a key environmental factor influencing its reproductive strategy. Photoperiod may act as a seasonal signal for the copepod to produce diapause eggs in late spring.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Ecology
Jian-Jun Tang, Xing-Ping Liu, Hai-Min He, Li-Li Huang, Shao-Hui Wu, Fang-Sen Xue
Summary: The life cycle of the cabbage beetle in southeastern China is complex due to multiple options for adult development. This study provides detailed information on the multi-year emergence patterns of diapausing individuals and explores the influence of temperature and photoperiod on diapause duration. The findings suggest that the cabbage beetle adopts a multi-year dormancy strategy to survive local environmental conditions and unpredictable risks.
ECOLOGY AND EVOLUTION
(2022)
Review
Biology
Micah G. Freedman, Marcus R. Kronforst
Summary: "Monarch butterflies have been identified as a model system in migration genetics. Recent studies have revealed the genes and transcriptional networks that regulate their migratory behavior, including circadian clock genes and the vitamin A synthesis pathway. Comparative approaches have identified genes that distinguish migratory and nonmigratory monarch populations, as well as genes associated with natural variation in diapause initiation. Population genetic techniques have shown that migration can disrupt spatial patterns at continental scales and drive differentiation between nearby populations. Additionally, population genetics can help reconstruct the monarch's evolutionary history and identify contemporary demographic changes."
CURRENT OPINION IN INSECT SCIENCE
(2023)
Article
Multidisciplinary Sciences
Qiangqiang Jia, Sheng Li
Summary: This study elucidates the regulatory mechanism and physiological importance of fat body cell dissociation in pupal development and insect diapause. It provides insights into fat body biology and insect diapause regulation.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Entomology
Sergey Reznik, Andrey Ovchinnikov, Antonina Ovchinnikova, Olga Bezman-Moseyko, Natalia Belyakova
Summary: The research investigated the effects of different factors on the predatory ladybird Cheilomenes propinqua, and found that conditions conducive to reproductive diapause led to a higher proportion of diapausing females.
JOURNAL OF APPLIED ENTOMOLOGY
(2021)
Article
Agronomy
Hongqiang Feng, Yinli Jin, Yanfang Zhang, Jianrong Huang, Hongyun Feng, Youming Hou
Summary: This study investigated the combined effects of photoperiod and temperature on diapause induction in the green mirid bug in northern China, establishing a model to predict diapause incidence. The model was found to accurately predict diapause incidence in this pest species, suggesting it can be incorporated into population dynamic models for pest management.
PEST MANAGEMENT SCIENCE
(2021)
Article
Physiology
Quan-Hong Xiao, Zhe He, Rong-Wei Wu, Dao-Hong Zhu
Summary: This study investigated the overwintering strategies of the swallowtail butterfly and found that diapausing pupae deplete glycogen stores during the pre-diapause period and switch to using lipids during the diapause maintenance phase. They also accumulate trehalose as a cryoprotectant and reduce free water content to enhance cold tolerance.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Peter Pruisscher, Philipp Lehmann, Soren Nylin, Karl Gotthard, Christopher W. Wheat
Summary: This study conducted a time-course experiment on the head and abdomen of the butterfly Pieris napi, revealing significant differential gene expression dynamics during diapause compared to non-diapausing siblings from the first day of pupal development. The findings suggest a preprogrammed transcriptional landscape that is active during winter, with different biological processes active in the two body parts. Ultimately, adults emerging from either direct or diapause pathways exhibit minimal transcriptomic differences, indicating a strongly canalized adult phenotype.
Article
Biochemistry & Molecular Biology
Shao-Lei Geng, Xiao-Shuai Zhang, Wei-Hua Xu
Summary: The study found that changes in mitochondrial ROS levels and COXIV expression can affect diapause occurrence and pupal lifespan in Helicoverpa armigera. PKA and TFAM are also involved in this process, and G6PD activity plays a crucial role in maintaining ROS levels.
Article
Agronomy
Qin Lu, Yan Li, Jing Liao, Zhaohong Ni, Shunchao Xia, Maofa Yang, Haiyin Li, Jianjun Guo
Summary: This study investigated the role of histone H3 acetylation in diapause of the cotton bollworm and found that it is closely related to pupal diapause, suggesting its potential as a target for pest control.
PEST MANAGEMENT SCIENCE
(2023)
Article
Microbiology
Qianghui Zhang, Yuting Jiang, Chaojie Li, Jian Gao, Teng Zhao, Hengduan Zhang, Chunxiao Li, Dan Xing, Yande Dong, Tongyan Zhao, Xiaoxia Guo
Summary: This study found that Aedes albopictus mosquitoes in Beijing are highly susceptible to Zika virus and can pass viable virus to their offspring through vertical transmission. The impact of diapause on regulating viral replication and survival was also examined. Infected mosquitoes had a significantly lower hatching rate, indicating an intriguing interaction between diapause eggs and the virus. These findings suggest that vertical transmission of Zika virus from diapause eggs may play a critical role in the dissemination and maintenance of the virus in the vector.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Entomology
Keiji Nakamura, YuuK Fukushima
Summary: This study examines the seasonal and geographical adaptations of the parthenogenetic stick insect in terms of embryonic diapause. It is found that eggs in an early embryonic stage enter diapause at high temperatures, enabling the insect to survive adverse conditions in summer and winter. Additionally, insects originating from higher latitudes take longer to hatch, and the intensity of diapause is lowest in insects from lower latitudes.
EUROPEAN JOURNAL OF ENTOMOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Nathan J. Herrick, Raymond A. Cloyd, Mary A. Conner, Gergely Motolai
Summary: The study found that releasing 3 to 4 insidious flower bug adults is most effective in managing populations of western flower thrips, and that spinosad can be used together with the insidious flower bug. Furthermore, the predation of insidious flower bugs on western flower thrips is not affected by day lengths, allowing greenhouse producers to release the bugs throughout the growing season.
BIOLOGICAL CONTROL
(2021)
Article
Biochemistry & Molecular Biology
Philip Suess, Heinrich Dircksen, Kevin T. Roberts, Karl Gotthard, Dick R. Nassel, Christopher W. Wheat, Mikael A. Carlsson, Philipp Lehmann
Summary: Diapause is a crucial mechanism for insects to adapt their life cycle to adverse conditions, with key regulators being ecdysone and PTTH. Termination of diapause under low temperatures may occur precociously.
INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY
(2022)
Article
Genetics & Heredity
Shuang Guo, Zhong Tian, Qing-Wen Wu, Kirst King-Jones, Wen Liu, Fen Zhu, Xiao-Ping Wang
Summary: Diapause, induced by seasonal environmental changes, is a programmed developmental arrest common in animals that provides an adaptive advantage. In insects, key endocrine factors such as ecdysone and JH play crucial roles in regulating reproductive diapause.
Article
Entomology
Qiao Gao, Bei Li, Bing-Xin Wei, Wen Liu, Pan Wang, Jia-Lu Wang, Xing-Miao Zhou, Xiao-Ping Wang
Summary: This study revealed that photoperiod regulates male IRS development in H. axyridis through a conserved Met-dependent JH signaling pathway. The results indicate the importance of JH in IRS development and how Met knockdown can affect this process in male ladybeetles.
Article
Agronomy
Qiao Gao, Bei Li, Zhong Tian, Arnold De Loof, Jia-Lu Wang, Xiao-Ping Wang, Wen Liu
Summary: Our study reveals that in the Asian lady beetle Harmonia axyridis, the absence of juvenile hormone (JH) triggers reproductive diapause, as indicated by JH measurements and the knockdown of the intracellular JH receptor methoprene-tolerant (Met). Furthermore, we demonstrate that JH biosynthesis, rather than the degradation pathway, determines the reduction of JH titer in diapausing females.
PEST MANAGEMENT SCIENCE
(2022)
Article
Agronomy
Zhong Tian, Shuang Guo, Fen Zhu, Wen Liu, Xiao-Ping Wang
Summary: This study showed that disrupting COPII complex assembly can effectively inhibit the growth and development of Colaphellus bowringi adults, highlighting the potential of targeting the COPII complex as an RNAi-based approach for pest control in cruciferous vegetables. Silencing the COPII assembly genes not only suppressed ovarian growth and yolk deposition but also affected feeding behavior and increased mortality. These effects were associated with the down-regulation of insulin/mTOR-associated nutritional pathways and repression of juvenile hormone and ecdysone signaling pathways.
PEST MANAGEMENT SCIENCE
(2022)
Article
Entomology
Fangmei Hu, Lingen Du, Xueke Gao, Jinjie Cui, Xingmiao Zhou
Summary: This study investigated the microbial diversity of predatory natural enemies in a cotton field in northern China using Illumina 16S rRNA amplicon sequencing. The results showed that the microbial diversity of different natural enemies varied, with Chrysoperla sinica having low diversity, and Harmonia axyridis and Propylaea japonica having higher diversity. The dominant bacterial communities also differed among these natural enemies.
JOURNAL OF ASIA-PACIFIC ENTOMOLOGY
(2022)
Article
Cell Biology
Zijie Huang, Zhong Tian, Yulian Zhao, Fen Zhu, Wen Liu, Xiaoping Wang
Summary: This study investigated the role of the MAPK signaling pathway in ovarian growth and oviposition in the cabbage beetle and found that ERK and P38 pathways are important for female survival and reproduction. Additionally, ERK pathway possibly regulates ecdysone biosynthesis and P38 pathway may be involved in germline stem cell development and differentiation.
Article
Plant Sciences
Yasir Islam, Farhan Mahmood Shah, Ali Guncan, John Paul DeLong, Xingmiao Zhou
Summary: Functional responses are influenced by temperature and the size of prey and predator. This study found that predation rates increased with warming and predator age. Smaller prey were more likely to be preyed upon. These findings have implications for effective biocontrol strategies.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Yasir Islam, Ali Guncan, Yadong Fan, Xingmiao Zhou, Afifa Naeem, Farhan Mahmood Shah
Summary: This study investigates the impact of temperature on the development and predation ability of Harmonia axyridis, an important biocontrol agent. The results show that temperature affects the growth rate and predation rate of H. axyridis, with higher temperatures leading to faster development and higher predation rates.
Article
Multidisciplinary Sciences
Yasir Islam, Ali Guncan, Xingmiao Zhou, Afifa Naeem, Farhan Mahmood Shah
Summary: This study investigated the effects of temperature on the population parameters and predation behavior of Harmonia axyridis. The results showed that temperature had a significant impact on the development and predation of H. axyridis. These findings are important for predicting the population responses of H. axyridis to climate change and adapting integrated pest management strategies accordingly.
SCIENTIFIC REPORTS
(2022)
Article
Biochemistry & Molecular Biology
Lian Chen, Zhong Tian, Jin Hu, Xiao-Yun Wang, Man-Qun Wang, Wen Lu, Xiao-Ping Wang, Xia-Lin Zheng
Summary: This study focuses on the role of sex pheromone-binding proteins (PBPs) in Lepidopteran insects. Two novel PBPs, PflaPBP1 and PflaPBP2, were identified in Phauda flammans, a diurnal moth species. PflaPBP1 has a stronger affinity for female sex pheromones, while PflaPBP2 only binds to a specific sex pheromone component. These findings provide insights into the molecular mechanism of sex pheromone perception and may contribute to pest control strategies.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Jia-Xu Li, Zhong Tian, Xing-Feng Liu, Bei Li, Hao-Min An, Colin S. Brent, Jia-Lu Wang, Xiao-Ping Wang, Wen Liu
Summary: Many animals exhibit plasticity of body colour in response to environmental changes, and carotenoids significantly contribute to this flexibility. However, the molecular mechanisms of carotenoid expression regulation by environmental cues are still largely unknown. This study used the ladybird Harmonia axyridis as a model and found that the differential accumulation of carotenoids resulted in a redder elytra coloration in females under long-day conditions compared to those under short-day conditions. The researchers identified the juvenile hormone (JH) receptor-mediated canonical pathway as the regulator of carotenoid deposition through exogenous hormone application and gene knockdown experiments. Furthermore, they characterized the SCRB10 gene as the carotenoid transporter responding to JH signaling and regulating the elytra coloration plasticity.
Article
Cell Biology
Sakhawat Shah, Karam Khamis Elgizawy, Chun-Mei Shi, Hucheng Yao, Wen-Han Yan, Yu Li, Xiao-Ping Wang, Gang Wu, Feng-Lian Yang
Summary: This study found that Diallyl trisulfide (DAT), a component of garlic essential oil, can decrease the male fertility of Sitotroga cerealella. The results showed that DAT significantly decreased the dimorphic sperm number and caused abnormal mitochondrial structures of the sperm. It also reduced lipid homeostasis, ATP contents, total sperm motility, and other sperm parameters. This study reported, for the first time, that DAT impairs energy metabolism, inhibits dimorphic spermatogenesis, and decreases sperm motility, leading to adult-male infertility.
Article
Cell Biology
Sakhawat Shah, Karam Khamis Elgizawy, Meng-Ya Wu, Hucheng Yao, Wen-Han Yan, Yu Li, Xiao-Ping Wang, Gang Wu, Feng-Lian Yang
Summary: Essential oils from plants, particularly garlic essential oil, containing Diallyl trisulfide (DAT) have been found to have negative effects on insects, specifically impacting their sperm function and fertility. The study demonstrates that DAT impairs the testis proteasome, leading to male infertility characterized by oligoasthenoteratospermia in Sitotroga cerealella.
Article
Agronomy
Fan Yang, Pan Wang, Min Zheng, Xiao-Yu Hou, Li-Lin Zhou, Yong Wang, Sheng-Yun Si, Xiao-Ping Wang, Jason W. Chapman, Yu-Meng Wang, Gao Hu
Summary: The research on Plutella xylostella in central China reveals that temperature fluctuations affect the migratory propensity and reproduction of the insects. The study sheds light on the physiological and behavioral factors underlying mass migration in P. xylostella, showing that exposure to increased temperature increases their migration propensity at the cost of reproductive output.
PEST MANAGEMENT SCIENCE
(2023)
