Genomic diversity, tolerance and ecology of wildlife disease. This project aims to understand the regulation of viral disease by vertebrate hosts. Viruses are rapidly evolving threats to humans, agriculture and wildlife and understanding of these threats can be transformed by combining the latest genomic, ecological and immune-pathological approaches. This project expects to reveal how hosts manage the bad effects of viruses in natural populations and fill gaps in fundamental knowledge of virus- ....Genomic diversity, tolerance and ecology of wildlife disease. This project aims to understand the regulation of viral disease by vertebrate hosts. Viruses are rapidly evolving threats to humans, agriculture and wildlife and understanding of these threats can be transformed by combining the latest genomic, ecological and immune-pathological approaches. This project expects to reveal how hosts manage the bad effects of viruses in natural populations and fill gaps in fundamental knowledge of virus-host evolution. Anticipated benefits include improved management, risk assessment and decision-making for animal disease and biosecurity in Australia and globally.Read moreRead less
How a ubiquitous endosymbiont of insects protects against pathogens. The project intends to determine the mechanism that underpins pathogen protection in insects. Insects harbour microbial communities in their cells and guts and confer a range of benefits on their hosts. One bacterium, Wolbachia, protects insects against co-infecting pathogens. The release of Wolbachia into mosquito populations is currently being tested as a means to reduce dengue virus transmission to humans. Using innovative e ....How a ubiquitous endosymbiont of insects protects against pathogens. The project intends to determine the mechanism that underpins pathogen protection in insects. Insects harbour microbial communities in their cells and guts and confer a range of benefits on their hosts. One bacterium, Wolbachia, protects insects against co-infecting pathogens. The release of Wolbachia into mosquito populations is currently being tested as a means to reduce dengue virus transmission to humans. Using innovative evolutionary and genetic approaches, the project proposes to elucidate the mechanism of pathogen blocking and ascertain its broader consequences for the host. This knowledge may be critical for maintaining the effectiveness of the biocontrol approach in the field by informing the development of resistance management strategies.Read moreRead less
From shape to function: how structured RNA defines insect flaviviruses. The goal of this project is to obtain an understanding of how insect-specific flaviviruses (ISFs) utilise viral noncoding RNAs to enable their replication in mosquitoes. These viruses only replicate in mosquitoes, and not in humans or animals. They can be employed as the biocontrol agents for mosquito-borne diseases as they make mosquitoes incapable of disease transmission. However, it is currently unknown how exactly insect ....From shape to function: how structured RNA defines insect flaviviruses. The goal of this project is to obtain an understanding of how insect-specific flaviviruses (ISFs) utilise viral noncoding RNAs to enable their replication in mosquitoes. These viruses only replicate in mosquitoes, and not in humans or animals. They can be employed as the biocontrol agents for mosquito-borne diseases as they make mosquitoes incapable of disease transmission. However, it is currently unknown how exactly insect-specific flaviviruses affect mosquitoes and this information is vital for informed design of ISF-based interventions. The project will generate new knowledge on functions of noncoding RNAs in ISFs that are hypothesised to have immunomodulatory role in mosquitoes. It will also train students and ECRs.Read moreRead less
Contact Networks, Immunity, and Evolution in Competing Cancer Epidemics. The project aims to evaluate evolutionary interactions between two transmissible cancer epidemics affecting Tasmanian devils and quantify their feedback on infection risk and epidemic behaviour. Using contact tracing and a phylogenetic framework we aim to quantify how tumour lineages evolve with each generation of infection and their effects on susceptibility to infection and disease progression. We expect to reveal the hos ....Contact Networks, Immunity, and Evolution in Competing Cancer Epidemics. The project aims to evaluate evolutionary interactions between two transmissible cancer epidemics affecting Tasmanian devils and quantify their feedback on infection risk and epidemic behaviour. Using contact tracing and a phylogenetic framework we aim to quantify how tumour lineages evolve with each generation of infection and their effects on susceptibility to infection and disease progression. We expect to reveal the host immuno-genetic basis underpinning cancer suppression and the adaptive capacity of populations in response to infectious diseases. This should significantly improve our ability to understand and manage this and other epidemic outbreaks in wildlife, as well as advancing our knowledge in cancer ecology and evolution.Read moreRead less
Wolbachia endosymbionts: novel strain dynamics in Australian Drosophila. This project aims to understand Wolbachia infections across Australian Drosophila flies. Wolbachia bacteria that live inside the cells of insects and other invertebrates are widely seen as a promising tool for pest and disease control. This project will assess the population distribution, host phenotypic effects, population dynamics and evolutionary context of multiple Wolbachia infections across Australian Drosophila flies ....Wolbachia endosymbionts: novel strain dynamics in Australian Drosophila. This project aims to understand Wolbachia infections across Australian Drosophila flies. Wolbachia bacteria that live inside the cells of insects and other invertebrates are widely seen as a promising tool for pest and disease control. This project will assess the population distribution, host phenotypic effects, population dynamics and evolutionary context of multiple Wolbachia infections across Australian Drosophila flies. The outcome will include new and novel strains for applied projects, new information on the fate of Wolbachia infections, and new insights into the factors that dictate the fate of Wolbachia infections across populations.Read moreRead less
The evolution of host-parasite interactions during a biological invasion. This project aims to elucidate how host organisms and their parasites adapt to each other, exploiting the fact that a biological invasion imposes novel evolutionary challenges. This project expects to generate new knowledge about how the interaction between host and parasite species is affected when the system is exposed to powerful new selective forces. Expected outcomes of this project include development of theory, trai ....The evolution of host-parasite interactions during a biological invasion. This project aims to elucidate how host organisms and their parasites adapt to each other, exploiting the fact that a biological invasion imposes novel evolutionary challenges. This project expects to generate new knowledge about how the interaction between host and parasite species is affected when the system is exposed to powerful new selective forces. Expected outcomes of this project include development of theory, training of students in an emerging field, and a nuanced understanding of this important topic. This should provide significant benefits, such as an enhanced ability for wildlife managers to predict the impact of parasites on species of wildlife that are extending their geographic ranges.Read moreRead less
Revealing the determinants of viral emergence and evolution in fish. Viral diseases pose an ongoing threat to Australian aquaculture. The devastating impact of emerging viruses makes it imperative to understand the factors that allow them to evolve and infect new hosts. We will address these key issues by revealing the diversity, abundance and evolution of viruses in fish sampled along the Australian east coast. The data generated will reveal the untapped biodiversity of fish viruses, the freque ....Revealing the determinants of viral emergence and evolution in fish. Viral diseases pose an ongoing threat to Australian aquaculture. The devastating impact of emerging viruses makes it imperative to understand the factors that allow them to evolve and infect new hosts. We will address these key issues by revealing the diversity, abundance and evolution of viruses in fish sampled along the Australian east coast. The data generated will reveal the untapped biodiversity of fish viruses, the frequency which they jump species boundaries and the determinants of this process, and how they are impacted by host ecology, including whether fish viruses follow a latitudinal gradient in diversity. The data generated will transform our understanding of fish viruses and identify those most likely to impact aquaculture.Read moreRead less
Pair bonding: is it all in the brain? This project aims to understand the interaction between classic pair bonding neural circuits, parasites, and the immune system in sleepy lizards. Social bonds are a cornerstone of human societies, especially true of the pair bond and this project expects to generate knowledge to help understand why healthy adult pair bonds are the single best predictor of longevity in humans. The expected outcomes of this project are to reveal the mechanistic basis of pair b ....Pair bonding: is it all in the brain? This project aims to understand the interaction between classic pair bonding neural circuits, parasites, and the immune system in sleepy lizards. Social bonds are a cornerstone of human societies, especially true of the pair bond and this project expects to generate knowledge to help understand why healthy adult pair bonds are the single best predictor of longevity in humans. The expected outcomes of this project are to reveal the mechanistic basis of pair bonding by identifying the brain regions, cell types and neurochemicals that promote pair bonding behaviour — for the first time in a wild animal. This project should provide significant benefits by increasing our knowledge of how pair bonds promote wellness.Read moreRead less
Cracking the code of snails to elucidate parasite disease transmission. In Australia, a disease caused by liver flukes causes major economic losses to livestock production. The role of Australian pond snails as intermediate hosts for this parasite is poorly understood. This project aims to explore the phylogeography, biology and genomics of these snails. It expects to create novel molecular resources for important snail species and verify their roles as key vectors of flatworm parasites. The cur ....Cracking the code of snails to elucidate parasite disease transmission. In Australia, a disease caused by liver flukes causes major economic losses to livestock production. The role of Australian pond snails as intermediate hosts for this parasite is poorly understood. This project aims to explore the phylogeography, biology and genomics of these snails. It expects to create novel molecular resources for important snail species and verify their roles as key vectors of flatworm parasites. The curation of genomic and transcriptomic data sets, and elucidation of snail–parasite interactions will underpin the development of environmental diagnostic tests and deliver a new generation of intervention strategies to reduce the burden of liver fluke disease through the control of their snail intermediate hosts.Read moreRead less
Does coevolution drive speciation? This project aims to connect micro-evolutionary processes with macro-evolutionary patterns to test the extent to which tightly coupled co-evolutionary interactions between species drive evolutionary diversification. The project will use techniques including the most recent phylogenetic modelling methods, field experiments and molecular genetics. Expected outcomes include advancing understanding of the mechanisms that generate biodiversity and developing new tec ....Does coevolution drive speciation? This project aims to connect micro-evolutionary processes with macro-evolutionary patterns to test the extent to which tightly coupled co-evolutionary interactions between species drive evolutionary diversification. The project will use techniques including the most recent phylogenetic modelling methods, field experiments and molecular genetics. Expected outcomes include advancing understanding of the mechanisms that generate biodiversity and developing new techniques for acquisition of DNA from museum specimens. The project is expected to provide significant benefits, such as insights into the processes that promote new species in nature.Read moreRead less