Beyond chemoreception: diverse tasks of soluble olfactory proteins in insects

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2017, Volume and Issue: 93(1), P. 184 - 200

Published: May 7, 2017

ABSTRACT Odorant‐binding proteins ( OBPs ) and chemosensory CSPs are regarded as carriers of pheromones odorants in insect chemoreception. These typically located antennae, mouth organs other structures; however, members both classes have been detected recently parts the body various functions proposed. The best studied these non‐sensory tasks is performed pheromone glands, where solubilise hydrophobic semiochemicals assist their controlled release into environment. In some cases same expressed antennae thus performing a dual role receiving broadcasting chemical message. Several reports described reproductive organs. Some male specific transferred to females during mating. They likely carry with different proposed roles, from inhibiting males approaching mated females, marking fertilized eggs, but further experimental evidence still needed. Before being discovered insects, presence binding glands was widely reported mammals, vertebrate , structurally insects belonging lipocalin superfamily, abundant rodent urine, pig saliva vaginal discharge hamster, well seminal fluid rabbits. at least four promote development regeneration: embryo maturation honeybee, limb regeneration cockroach, ecdysis larvae fire ants promoting phase shift locusts. Both also important nutrition solubilisers lipids essential components diet. Particularly interesting affinity for carotenoids abundantly secreted proboscis moths butterflies occurrence (or very similar eyes insects. A carrier visual pigments parallels that retinol‐binding protein vertebrates, related vertebrates. Other include anti‐inflammatory action haematophagous resistance insecticides eggshell formation. Such multiplicity roles high success adapted situations stable scaffolding determining excellent stability temperature, proteolysis denaturing agents. wide versatility nature has suggested several uses biotechnological applications, biosensors odours scavengers pollutants releasers chemicals

Language: Английский

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Ensembl Genomes 2018: an integrated omics infrastructure for non-vertebrate species

Nucleic Acids Research, Journal Year: 2017, Volume and Issue: 46(D1), P. D802 - D808

Published: Oct. 24, 2017

Ensembl Genomes (http://www.ensemblgenomes.org) is an integrating resource for genome-scale data from non-vertebrate species, complementing the resources vertebrate genomics developed in project (http://www.ensembl.org). Together, two provide a consistent set of programmatic and interactive interfaces to rich range including genome sequence, gene models, transcript genetic variation, comparative analysis. This paper provides update previous publications about resource, with focus on recent developments expansions. These include incorporation almost 20 000 additional sequences over 35 tracks RNA-Seq data, which have been aligned genomic sequence made available visualization. Other advances since 2015 release database Resource Description Framework (RDF) format, large increase community-derived curation, new high-performance protein search, cross-references, improved annotation non-protein-coding genes, launch pre-release archival sites. Collectively, these changes are part continuing response increasing quantity publicly-available consequent need archive, integrate, annotate disseminate using automated, scalable methods.

Language: Английский

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Breaking RAD: an evaluation of the utility of restriction site‐associated DNA sequencing for genome scans of adaptation

Molecular Ecology Resources, Journal Year: 2016, Volume and Issue: 17(2), P. 142 - 152

Published: Nov. 15, 2016

Abstract Understanding how and why populations evolve is of fundamental importance to molecular ecology. Restriction site‐associated DNA sequencing ( RAD seq), a popular reduced representation method, has ushered in new era genome‐scale research for assessing population structure, hybridization, demographic history, phylogeography migration. seq also been widely used conduct genome scans detect loci involved adaptive divergence among natural populations. Here, we examine the capacity those seq‐based scan studies local adaptation. To understand what proportion missed by studies, developed simple model using different numbers ‐tags, sizes extents linkage disequilibrium (length haplotype blocks). Under best‐case modelling scenario, found that six‐ or eight‐base pair cutting restriction enzymes would fail sample many regions genome, especially species with short disequilibrium. We then surveyed recent have median density markers across these was 4.08 ‐tag per megabase (one marker 245 kb). The length one three orders magnitude less than typical study. Thus, conclude based on data alone, while useful neutral genetic variation will likely miss under selection

Language: Английский

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Genomic signatures of evolutionary transitions from solitary to group living

Science, Journal Year: 2015, Volume and Issue: 348(6239), P. 1139 - 1143

Published: May 15, 2015

For bees, many roads lead to social harmony Eusociality, where workers sacrifice their reproductive rights support the colony, has evolved repeatedly and represents most form of evolution in insects. Kapheim et al. looked across genomes 10 bee species with varying degrees sociality determine underlying genomic contributions. No one path led eusociality, but similarities were seen features such as increases gene regulation methylation. It also seems that selection pressures relaxed after emergence complex sociality. Science , this issue p. 1139

Language: Английский

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Xenobiotic detoxification pathways in honey bees

Current Opinion in Insect Science, Journal Year: 2015, Volume and Issue: 10, P. 51 - 58

Published: May 2, 2015

Language: Английский

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Global Trends in Bumble Bee Health

Annual Review of Entomology, Journal Year: 2019, Volume and Issue: 65(1), P. 209 - 232

Published: Oct. 14, 2019

Bumble bees ( Bombus) are unusually important pollinators, with approximately 260 wild species native to all biogeographic regions except sub-Saharan Africa, Australia, and New Zealand. As they vitally in natural ecosystems agricultural food production globally, the increase reports of declining distribution abundance over past decade has led an explosion interest bumble bee population decline. We summarize data on threat status across regions, underscoring lacking assessment data. Focusing data-rich studies, we also synthesize recent research potential causes declines. There is evidence that habitat loss, changing climate, pathogen transmission, invasion nonnative species, pesticides, operating individually combination, negatively impact health, effects may depend locality. distinguish between correlational causal results, importance expanding experimental beyond study two commercially available identify factors affecting diversity species.

Language: Английский

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Unravelling the Molecular Determinants of Bee Sensitivity to Neonicotinoid Insecticides

Current Biology, Journal Year: 2018, Volume and Issue: 28(7), P. 1137 - 1143.e5

Published: March 22, 2018

Language: Английский

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Molecular Evolution of the Major Arthropod Chemoreceptor Gene Families

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

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Combining transcriptomes and ultraconserved elements to illuminate the phylogeny of Apidae

Molecular Phylogenetics and Evolution, Journal Year: 2018, Volume and Issue: 130, P. 121 - 131

Published: Oct. 13, 2018

Two increasingly popular approaches to reconstruct the Tree of Life involve whole transcriptome sequencing and target capture ultraconserved elements (UCEs). Both methods can be used generate large, multigene datasets for analysis phylogenetic relationships in non-model organisms. While targeted exon across divergent lineages is now a standard method, it still not clear if UCE data readily combined with published transcriptomes. In this study, we evaluate combination UCEs transcriptomes single using genome-, transcriptome-, 79 bees largest most biologically diverse bee family, Apidae. Using existing tools, first developed workflow assemble phylogenomic from different sources produced two large nucleotide matrices data. We then reconstructed phylogeny Apidae concatenation- coalescent-based methods, critically evaluated resulting phylogenies context previously genetic, genomic, morphological sets. Our estimated trees are robustly supported largely congruent previous molecular hypotheses, deep nodes shallow species-level phylogenies. Moreover, approach allows us resolve controversial apid Life, by clarifying among genera orchid (Euglossini) monophyly Centridini. Additionally, present novel evidence supporting clade cleptoparasitic placement enigmatic, oil-collecting (Ctenoplectra Tetrapedia). Lastly, propose revised classification family that reflects our improved understanding higher-level relationships.

Language: Английский

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Multifaceted biological insights from a draft genome sequence of the tobacco hornworm moth, Manduca sexta

Insect Biochemistry and Molecular Biology, Journal Year: 2016, Volume and Issue: 76, P. 118 - 147

Published: Aug. 12, 2016

Language: Английский

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