Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: Jan. 31, 2025
Language: Английский
Annual Review of Entomology, Journal Year: 2018, Volume and Issue: 64(1), P. 315 - 333
Published: Oct. 12, 2018
The insect fat body is analogous to vertebrate adipose tissue and liver. In this review, the new exciting advancements made in biology last decade are summarized. Controlled by hormonal nutritional signals, cells undergo mitosis during embryogenesis, endoreplication larval stages, remodeling metamorphosis regulate reproduction adults. Fat tissues major sites for nutrient storage, energy metabolism, innate immunity, detoxification. Recent studies have revealed that plays a central role integration of signals growth, size, circadian clock, pupal diapause, longevity, feeding behavior, courtship partially releasing remotely control brain. addition, has emerged as fascinating model studying metabolic disorders immune diseases. Potential future directions also proposed herein.
Language: Английский
Citations
254
Annual Review of Entomology, Journal Year: 2018, Volume and Issue: 64(1), P. 227 - 242
Published: Oct. 12, 2018
The evolutionary origins of the three major families chemoreceptors in arthropods-the odorant receptor (OR), gustatory (GR), and ionotropic (IR) families-occurred at base Insecta, Animalia, Protostomia, respectively. Comparison family sizes across arthropods reveals a generally positive correlation with their widely disparate complexity chemical ecology. Closely related species reveal ongoing processes gene evolution, including duplication, divergence, pseudogenization, loss, that mediate these larger patterns. Sets paralogous receptors within selection on amino acids regions likely to contribute ligand binding specificity. Ligands many ORs some GRs IRs have been identified; however, identification for more is needed, as are structures OR/GR superfamily, improve our understanding molecular evolution ecologically important arthropods.
Language: Английский
Citations
216
Insect Science, Journal Year: 2018, Volume and Issue: 26(4), P. 600 - 606
Published: June 11, 2018
Since it was first postulated by Wigglesworth in 1934, juvenile hormone (JH) is considered a status quo insects because prevents metamorphosis that initiated the molting 20-hydroxyecdysone (20E). During last decade, significant advances have been made regarding JH signaling. First, bHLH-PAS transcription factor Met/Gce identified as intracellular receptor. In presence of JH, with assistance Hsp83, and through physical association transcriptional co-activator, enters nucleus binds to E-box-like motifs promoter regions primary-response genes for inducing gene expression. Second, zinc finger Kr-h1 anti-metamorphic which transduces Via binding sites, represses expression 20E (i.e. Br, E93 E75) prevent 20E-induced metamorphosis. Third, signaling, promotes different aspects female reproduction. Nevertheless, this action varies greatly from species species. Last, hypothetical membrane receptor has predicted be either GPCR or tyrosine kinase future, will great challenge understand how yet unidentified coordinate regulate reproduction insects.
Language: Английский
Citations
141
BMC Genomics, Journal Year: 2020, Volume and Issue: 21(1)
Published: March 14, 2020
Abstract Background Halyomorpha halys (Stål), the brown marmorated stink bug, is a highly invasive insect species due in part to its exceptionally high levels of polyphagy. This also nuisance overwintering human-made structures. It has caused significant agricultural losses recent years along Atlantic seaboard North America and continental Europe. Genomic resources will assist with determining molecular basis for this species’ feeding habitat traits, defining potential targets pest management strategies. Results Analysis 1.15-Gb draft genome assembly identified wide variety genetic elements underpinning biological characteristics formidable species, encompassing roles sensory functions, digestion, immunity, detoxification development, all which likely support H. ’ capacity invasiveness. Many genes herein have biomolecular pesticide applications. Conclusions Availability sequence be useful development environmentally friendly pesticides applied concert more traditional, synthetic chemical-based controls.
Language: Английский
Citations
82
Insect Science, Journal Year: 2024, Volume and Issue: unknown
Published: March 14, 2024
The tobacco cutworm Spodoptera litura is one of the most destructive polyphagous crop pests. Olfaction and taste play a crucial role in its host plant selection sexual communication, but expression profile chemosensory genes remains unclear. In this study, we identified 185 from 7 organs S. by transcriptome sequencing, which 72 were published for first time, including 27 odorant receptors (ORs), 26 gustatory (GRs), 1 ionotropic receptor (IR), 16 odorant-binding proteins (OBPs), 2 (CSPs). Phylogenetic analyses revealed that ORs, IRs, OBPs, sensory neuron membrane (SNMPs) mainly expressed antennae sequence-conserved among Noctuidae species. differentially (DEGs) between sexes ORs no DEGs found GRs. GR transcripts enriched proboscis, sugar was highest. Carbon dioxide receptors, receptor-SliuGR6, bitter GRs-SlituGR43 SlituGR66 had higher sequence identities CSPs broadly various organs, SlituCSP13 DEG adult antennae. functional analysis Drosophila OR67d system SlituOR50, highly female antennae, selectively tuned to farnesyl acetate. results provide solid foundation understanding molecular mechanisms operate elicit behavioral responses insects.
Language: Английский
Citations
10
National Science Review, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 23, 2025
Inter-organelle communication coordinates cellular homeostasis and function. Juvenile hormone (JH) is produced in the corpora allata (CA) acts as a gonadotrophic most insects. Using transcriptomic, biochemical, molecular, genetic analyses, here we investigated underlying mechanism of how inter-organelle dynamically orchestrates JH biosynthesis female reproduction American cockroach, Periplaneta americana. The extracellular stimuli insulin allatostatin act through their membrane receptors antagonistically regulate RyR-mediated Ca2+ release from endoplasmic reticulum CA cells. Ca2+-activated CaMKII stimulates energy metabolism mitochondria partially via SLC25A6, induces expression biosynthetic genes HMGR, Jhamt, Cyp15a1 activating transcription factor CREB, which recruits CBP for histone acetylation nucleus. Additionally, interact with CREB-CBP mitonuclear to biosynthesis. From perspective communication, this comprehensive study significantly advanced our understanding reproductive biology
Language: Английский
Citations
1
PeerJ, Journal Year: 2020, Volume and Issue: 8, P. e9534 - e9534
Published: July 10, 2020
Background Insects have several genes coding for insulin-like peptides and they been particularly well studied in Drosophila . Some of these hormones function as growth are produced by the fat body brain. These act through a typical insulin receptor tyrosine kinase. Two other either known or suspected to G-protein coupled receptor. Although insulin-related from insect species, peptide 8, one that uses receptor, has so far only identified flies. However, its is widespread within arthropods hence it should orthologs. Such putative orthologs were recently decapods called gonadulins. Methodology In an effort identify gonadulins public genome assemblies short-read archives insects explored presence transcripts their receptors. Results Gonadulins detected number arthropods. those species which transcriptome data gonads available gonadulin expressed ovaries at least some also testes. differences expression ovary between actively reproducing non-reproducing females differs more than 100-fold. Putative ilp 6 identified. non-Dipteran C-terminally extensions alternatively spliced. The predicted arthropod factors. cockroaches, termites stick factors, relaxin, third peptide, encoded next another suggesting result local gene triplication. close chromosomal association was found factor spiders. Phylogenetic tree analysis kinases insects, chelicerates shows signaling pathway evolved differently three groups. receptors related 8 similarly show significant Conclusion A triplication early ancestor likely yielded gonadulin, relaxin. Orthologs now commonly present almost certainly include 6, 7 8.
Language: Английский
Citations
52
Biology, Journal Year: 2021, Volume and Issue: 10(7), P. 614 - 614
Published: July 2, 2021
The proper synthesis and functioning of ecdysteroids juvenile hormones (JHs) are very important for the regulation vitellogenesis oogenesis. However, their role function contrast among different orders, even in same insect order. For example, JH is main hormone that regulates hemimetabolous which include Orthoptera, Blattodea, Hemiptera, while regulate orders Diptera, some Hymenoptera Lepidoptera. These endocrine also each other. Even at specific stage life, they positively other, other stages negatively control Such positive negative interaction 20-hydroxyecdysone (20E) discussed this review article to better understand these regulating reproduction. Therefore, purpose present deeply complex with insulin signaling pathway. microbiomes system reviewed, as significantly affected by compounds produced microbiota.
Language: Английский
Citations
49
Communications Biology, Journal Year: 2022, Volume and Issue: 5(1)
Published: Jan. 11, 2022
Abstract Bactrocera dorsalis is an invasive polyphagous pest causing considerable ecological and economic damage worldwide. We report a high-quality chromosome-level genome assembly combine various transcriptome data to explore the molecular mechanisms of its rapid adaptation new environments. The expansions DDE transposase superfamily key gene families related environmental enrichment expanded unique in metabolism defence response pathways explain adaptability. relatively high but not significantly different expression heat-shock proteins, regardless conditions, suggests intrinsic mechanism underlying temperatures. mitogen-activated protein kinase pathway plays role prevalence duplicated genes explains diversity B. complex. These findings provide insights into genetic basis invasiveness , explaining expansion.
Language: Английский
Citations
32
Cell Reports, Journal Year: 2024, Volume and Issue: 43(3), P. 113889 - 113889
Published: Feb. 27, 2024
The mystery of appendage regeneration has fascinated humans for centuries, while the underlying regulatory mechanisms remain unclear. In this study, we establish a transcriptional landscape regenerating leg in American cockroach, Periplaneta americana, an ideal model studies showing remarkable capacity. Through large-scale vivo screening, identify multiple signaling pathways and transcription factors controlling regeneration. Specifically, zfh-2 bowl contribute to blastema cell proliferation morphogenesis two cascades: bone morphogenetic protein (BMP)/JAK-STAT-zfh-2-B-H2 Notch-drm/bowl-bab1. Notably, find is working as direct target BMP promote blastema. These might be conserved vertebrates from evolutionary perspective. Overall, our findings reveal that crucial cascades orchestrate distinct cockroach processes, significantly advancing comprehension molecular mechanism
Language: Английский
Citations
8