John G. Oakeshott
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View article: Museomics and Salvaged Feathers Piece Together the Evolutionary History and Conservation Genomics of the Elusive, Critically Endangered Night Parrot (<scp><i>Pezoporus occidentalis</i></scp>)
Museomics and Salvaged Feathers Piece Together the Evolutionary History and Conservation Genomics of the Elusive, Critically Endangered Night Parrot (<span><i>Pezoporus occidentalis</i></span>) Open
The Night Parrot is a critically endangered nocturnal bird of Australia's arid zone. The species was “lost” for most of the 20th century until its rediscovery in 1990. Extant populations are now known in eastern and western Australia, but …
View article: Structural and Evolutionary Constraints of Organophosphate Resistance in Dipteran Carboxylesterases
Structural and Evolutionary Constraints of Organophosphate Resistance in Dipteran Carboxylesterases Open
Enzymatic detoxification of organophosphate (OP) insecticides can confer resistance in some insects, yet the precise molecular basis of this trait, and how it has evolved, remains poorly understood. In certain dipteran species, a G→D mutat…
View article: Associations between diurnally varying male volatile emissions and allochrony in 2 sibling fruit fly species (Diptera: Tephritidae)
Associations between diurnally varying male volatile emissions and allochrony in 2 sibling fruit fly species (Diptera: Tephritidae) Open
Allochrony can be an important premating isolating mechanism in insects but its physiological basis has seldom been determined. It operates at a diurnal scale to differentiate mating times of some closely related tephritid taxa. For exampl…
View article: Population genomics reveals population structure and local adaptation of the <scp><i>Helicoverpa armigera</i></scp> lineage in Xinjiang, China
Population genomics reveals population structure and local adaptation of the <span><i>Helicoverpa armigera</i></span> lineage in Xinjiang, China Open
BACKGROUND The cotton bollworm, Helicoverpa armigera , is a global pest of many crops, particularly cotton. Populations in Xinjiang (north‐western China) are distinct from other major lineages in eastern China and elsewhere. Cotton is grow…
View article: Correction: Diversity and sex differences in rectal gland volatiles of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae)
Correction: Diversity and sex differences in rectal gland volatiles of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae) Open
[This corrects the article DOI: 10.1371/journal.pone.0273210.].
View article: Seminal fluid proteins in the Queensland fruit fly: Tissue origins, effects of mating and comparative genomics
Seminal fluid proteins in the Queensland fruit fly: Tissue origins, effects of mating and comparative genomics Open
In many insect species, the ability of males to inhibit their mates from remating is an important component of fitness. This ability is also essential for the effective management of insect pests, including tephritid fruit flies, using the…
View article: Template-based modeling of insect odorant receptors outperforms AlphaFold3 for ligand binding predictions
Template-based modeling of insect odorant receptors outperforms AlphaFold3 for ligand binding predictions Open
View article: Correction: Prasad et al. Patterns of Variation in the Usage of Fatty Acid Chains among Classes of Ester and Ether Neutral Lipids and Phospholipids in the Queensland Fruit Fly. Insects 2023, 14, 873
Correction: Prasad et al. Patterns of Variation in the Usage of Fatty Acid Chains among Classes of Ester and Ether Neutral Lipids and Phospholipids in the Queensland Fruit Fly. Insects 2023, 14, 873 Open
Supplementary Table S3 in our recent publication [...]
View article: Computational modeling of insect odorant receptors: A comparative analysis of Template-based and Alphafold modeling
Computational modeling of insect odorant receptors: A comparative analysis of Template-based and Alphafold modeling Open
Insects rely on odorant receptors (ORs) to detect and respond to volatile environmental cues, so the ORs are attracting increasing interest as potential targets for pest control. However, experimental analysis of their structures and funct…
View article: Differential pheromone profile as a contributor to premating isolation between two sympatric sibling fruit fly species
Differential pheromone profile as a contributor to premating isolation between two sympatric sibling fruit fly species Open
Bactrocera tryoni (Froggatt) and Bactrocera neohumeralis (Hardy) are sibling fruit fly species that are sympatric over much of their ranges. Premating isolation of these close relatives is thought to be maintained in part by allochrony—mat…
View article: Patterns of Variation in the Usage of Fatty Acid Chains among Classes of Ester and Ether Neutral Lipids and Phospholipids in the Queensland Fruit Fly
Patterns of Variation in the Usage of Fatty Acid Chains among Classes of Ester and Ether Neutral Lipids and Phospholipids in the Queensland Fruit Fly Open
Modern lipidomics has the power and sensitivity to elucidate the role of insects’ lipidomes in their adaptations to the environment at a mechanistic molecular level. However, few lipidomic studies have yet been conducted on insects beyond …
View article: Divergent amplifications of CYP9A cytochrome P450 genes provide two noctuid pests with differential protection against xenobiotics
Divergent amplifications of CYP9A cytochrome P450 genes provide two noctuid pests with differential protection against xenobiotics Open
Here, we provide mechanistic support for the involvement of the CYP9A subfamily of cytochrome P450 monooxygenases in the detoxification of host plant defense compounds and chemical insecticides in Spodoptera exigua and Spodoptera frugiperd…
View article: Flow cytometry-based biomarker assay for in vitro identification of microalgal symbionts conferring heat tolerance on corals
Flow cytometry-based biomarker assay for in vitro identification of microalgal symbionts conferring heat tolerance on corals Open
Corals’ tolerance to high temperature stress largely depends on their symbiotic microalgae (Symbiodiniaceae). However, the contributing microalgal traits and their relationships to one another are largely unclear. Here we compare the in vi…
View article: Genetic variation for rectal gland volatiles among recently collected isofemale lines and a domesticated strain of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae)
Genetic variation for rectal gland volatiles among recently collected isofemale lines and a domesticated strain of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae) Open
Divergence between populations in mating behaviour can function as a potent premating isolating mechanism and promote speciation. However, very few cases of inherited intraspecific variation in sexual signalling have been reported in tephr…
View article: Pyro: A Comprehensive Pipeline for Eukaryotic Genome Assembly
Pyro: A Comprehensive Pipeline for Eukaryotic Genome Assembly Open
1 Abstract The assembly of reference-quality, chromosome-level genomes for both model and novel eukaryotic organisms is an increasingly achievable task for single research teams. However, the broad variety of sequencing technologies, assem…
View article: Exhaustive benchmarking of<i>de novo</i>assembly methods for eukaryotic genomes
Exhaustive benchmarking of<i>de novo</i>assembly methods for eukaryotic genomes Open
The assembly of reference-quality, chromosome-resolution genomes for both model and novel eukaryotic organisms is an increasingly achievable task for single research teams. However, the overwhelming abundance of sequencing technologies, as…
View article: Wide substrate range for a candidate bioremediation enzyme isolated from <i>Nocardioides</i> sp. strain SG-4 G
Wide substrate range for a candidate bioremediation enzyme isolated from <i>Nocardioides</i> sp. strain SG-4 G Open
Narrow substrate ranges can impact heavily on the range of applications and hence commercial viability of candidate bioremediation enzymes. Here we show that an ester hydrolase from Nocardioides strain SG-4 G has potential as a bioremediat…
View article: Flow cytometry-based biomarker assay for<i>in vitro</i>identification of heat tolerance conferring coral symbionts
Flow cytometry-based biomarker assay for<i>in vitro</i>identification of heat tolerance conferring coral symbionts Open
Corals’ tolerance to high temperature stress largely depends on their symbiotic microalgae (Symbiodiniaceae). However, the contributing microalgal traits are largely unclear. Here we compare the in vitro cellular profiles of seven Cladocop…
View article: Diversity and sex differences in rectal gland volatiles of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae)
Diversity and sex differences in rectal gland volatiles of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae) Open
Rectal gland volatiles are key mediators of sexual interactions in tephritid fruit flies. We used solid-phase microextraction (SPME) plus gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detection (GC-FI…
View article: Population differences and domestication effects on mating and remating frequencies in Queensland fruit fly
Population differences and domestication effects on mating and remating frequencies in Queensland fruit fly Open
View article: Non-additive gene interactions underpin molecular and phenotypic responses in honey bee larvae exposed to imidacloprid and thymol
Non-additive gene interactions underpin molecular and phenotypic responses in honey bee larvae exposed to imidacloprid and thymol Open
Understanding the cumulative risk of chemical mixtures at environmentally realistic concentrations is a key challenge in honey bee ecotoxicology. Ecotoxicogenomics, including transcriptomics, measures responses in individual organisms at t…
View article: Phylogenomic analyses of the genus<i>Drosophila</i>reveals genomic signals of climate adaptation
Phylogenomic analyses of the genus<i>Drosophila</i>reveals genomic signals of climate adaptation Open
Many Drosophila species differ widely in their distributions and climate niches, making them excellent subjects for evolutionary genomic studies. Here, we have developed a database of high‐quality assemblies for 46 Drosophila species and o…
View article: Adaptive responses of free‐living and symbiotic microalgae to simulated future ocean conditions
Adaptive responses of free‐living and symbiotic microalgae to simulated future ocean conditions Open
Marine microalgae are a diverse group of microscopic eukaryotic and prokaryotic organisms capable of photosynthesis. They are important primary producers and carbon sinks but their physiology and persistence are severely affected by global…
View article: Separating two tightly linked species-defining phenotypes in Bactrocera with hybrid recombinant analysis
Separating two tightly linked species-defining phenotypes in Bactrocera with hybrid recombinant analysis Open
Background Bactrocera tryoni and Bactrocera neohumeralis mate asynchronously; the former mates exclusively around dusk while the latter mates during the day. The two species also differ in the colour of the post-pronotal lobe (callus), whi…
View article: Climate stress resistance in male Queensland fruit fly varies among populations of diverse geographic origins and changes during domestication
Climate stress resistance in male Queensland fruit fly varies among populations of diverse geographic origins and changes during domestication Open
Background The highly polyphagous Queensland fruit fly ( Bactrocera tryoni Froggatt) expanded its range substantially during the twentieth century and is now the most economically important insect pest of Australian horticulture, prompting…
View article: A breakthrough in understanding the molecular basis of coral heat tolerance
A breakthrough in understanding the molecular basis of coral heat tolerance Open
Respiratory virus infections in humans are a significant global health concern, causing a wide range of diseases with substantial morbidity and mortality worldwide. This underscores the urgent need for effective interventions to reduce the…
View article: Cuticular Chemistry of the Queensland Fruit Fly Bactrocera tryoni (Froggatt)
Cuticular Chemistry of the Queensland Fruit Fly Bactrocera tryoni (Froggatt) Open
The cuticular layer of the insect exoskeleton contains diverse compounds that serve important biological functions, including the maintenance of homeostasis by protecting against water loss, protection from injury, pathogens and insecticid…
View article: Genome-wide patterns of differentiation over space and time in the Queensland fruit fly
Genome-wide patterns of differentiation over space and time in the Queensland fruit fly Open
The Queensland fruit fly, Bactrocera tryoni , is a major pest of Australian horticulture which has expanded its range in association with the spread of horticulture over the last ~ 150 years. Its distribution in northern Australia overlaps…
View article: Cellular and Structural Basis of Synthesis of the Unique Intermediate Dehydro-F <sub>420</sub> -0 in Mycobacteria
Cellular and Structural Basis of Synthesis of the Unique Intermediate Dehydro-F <sub>420</sub> -0 in Mycobacteria Open
Mycobacteria are major environmental microorganisms and cause many significant diseases, including tuberculosis. Mycobacteria make an unusual vitamin-like compound, F 420 , and use it to both persist during stress and resist antibiotic tre…
View article: Heat-evolved microalgal symbionts increase coral bleaching tolerance
Heat-evolved microalgal symbionts increase coral bleaching tolerance Open
Coral bleaching tolerance can be enhanced through directed evolution of their microalgal symbionts.