Resolving insect evolution. Our poor understanding of the evolution of insects, life’s most successful group, is a huge gap in our knowledge of nature. By analysing genomic data the project will resolve the insect evolutionary tree and discover what drove insect evolution. This will expand our knowledge of how evolution works - a vital part of conserving our biological diversity.
Ancestral state reconstruction and the evolution of Australian marsupials. This project aims to investigate the diversification and evolvability of Australian marsupials, by enabling genomes, ecology and 3D skeletal shape to synergistically inform evolutionary inference. This project expects to generate new knowledge of the processes that have promoted and maintained marsupial biodiversity, by tracing their evolution across a fossil gap that spans half of their history. Expected outcomes of this ....Ancestral state reconstruction and the evolution of Australian marsupials. This project aims to investigate the diversification and evolvability of Australian marsupials, by enabling genomes, ecology and 3D skeletal shape to synergistically inform evolutionary inference. This project expects to generate new knowledge of the processes that have promoted and maintained marsupial biodiversity, by tracing their evolution across a fossil gap that spans half of their history. Expected outcomes of this project include improved methods for merging fossils into the tree of life and for reconstructing the ecology and morphology of ancestors on phylogenetic trees. This should provide significant benefits, such as a coherent evolutionary context for informing research on marsupial biology, ecology and conservation.Read moreRead less
Efficient phylogenetic methods that manage the curse of genomic complexity. This project aims to develop new methods and software to infer the evolutionary history of organisms using genomic data. These new phylogenomic methods need to take account of the complexity of evolutionary processes and/or patterns in time (along the evolutionary tree) and space (along the genome). This project is significant because these methods must merge mathematics and statistics with High-Performance Computing to ....Efficient phylogenetic methods that manage the curse of genomic complexity. This project aims to develop new methods and software to infer the evolutionary history of organisms using genomic data. These new phylogenomic methods need to take account of the complexity of evolutionary processes and/or patterns in time (along the evolutionary tree) and space (along the genome). This project is significant because these methods must merge mathematics and statistics with High-Performance Computing to handle the huge quantities of genetic data and the complexity of evolution itself. An important expected outcome of this project will be the development and release of freely-available software that incorporates these new methods. This project expects to benefit scientists who need to infer phylogenies from genomic data. Read moreRead less
Understanding diet designs that break life history trade-offs. The aim of this project is to understand the mechanisms by which organisms use nutrition to enhance fitness. Food availability is a key predictor of evolutionary fitness. Surprisingly, recent data shows that some key assumptions informing how these predictions are realised are not strictly correct, thus exposing a lack of important mechanistic knowledge. This project seeks to understand these mechanisms. The project plans to use nove ....Understanding diet designs that break life history trade-offs. The aim of this project is to understand the mechanisms by which organisms use nutrition to enhance fitness. Food availability is a key predictor of evolutionary fitness. Surprisingly, recent data shows that some key assumptions informing how these predictions are realised are not strictly correct, thus exposing a lack of important mechanistic knowledge. This project seeks to understand these mechanisms. The project plans to use novel genomics techniques to develop diets that support or improve fitness under circumstances such as stress or ageing, and to understand the molecular underpinnings of these improvements. Project outcomes may expand academic knowledge of fundamental nutritional biochemistry, and improve predictions of species’ responses to environmental change.Read moreRead less
Understanding evolution of dominant bacteria inhabiting the rodent gut . The gut microbiome is central to animal health and immune function, however we have an incomplete understanding of how this important symbiotic ecosystem evolved. By approaching this knowledge gap from a historical perspective and using real-time observation, this project will address how the gut community evolved with the rodent host and how members of that community respond to new selective pressures. The significance of ....Understanding evolution of dominant bacteria inhabiting the rodent gut . The gut microbiome is central to animal health and immune function, however we have an incomplete understanding of how this important symbiotic ecosystem evolved. By approaching this knowledge gap from a historical perspective and using real-time observation, this project will address how the gut community evolved with the rodent host and how members of that community respond to new selective pressures. The significance of these findings is in their capacity to inform our understanding of the relationship between host and microbe, not only within a key model system, but by extrapolation to other host-microbe systems. Read moreRead less
Testing links between genomic and morphological evolutionary rates. This project aims to identify, understand, and characterise patterns of evolutionary rates across different levels of biological variation. The project expects to generate knowledge about the tempo and mode of evolution by using a phylogenetic approach to test fundamental models of evolutionary rates, including the link between rates of genomic and morphological evolution. Expected outcomes of this project include detailed insig ....Testing links between genomic and morphological evolutionary rates. This project aims to identify, understand, and characterise patterns of evolutionary rates across different levels of biological variation. The project expects to generate knowledge about the tempo and mode of evolution by using a phylogenetic approach to test fundamental models of evolutionary rates, including the link between rates of genomic and morphological evolution. Expected outcomes of this project include detailed insights into the tempo and mode of macroevolution, better modelling of genomic and phenotypic evolution, and improved design of studies in evolutionary genomics. Benefits of the project include greater understanding of the evolutionary processes that have generated the diversity of the Australian biota.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100544
Funder
Australian Research Council
Funding Amount
$344,682.00
Summary
The drivers of genome evolution and diversification in marsupials. This project aims to investigate the impact of the four basic forces of evolution, mutation, selection, neutral drift, and gene flow, on the genome. Genome-scale data have a signature of these forces and extracting it would greatly improve the quality of evolutionary models fit to the data, but the framework to identify the evolutionary forces has not been developed. This project will develop tests for assessing the impact of the ....The drivers of genome evolution and diversification in marsupials. This project aims to investigate the impact of the four basic forces of evolution, mutation, selection, neutral drift, and gene flow, on the genome. Genome-scale data have a signature of these forces and extracting it would greatly improve the quality of evolutionary models fit to the data, but the framework to identify the evolutionary forces has not been developed. This project will develop tests for assessing the impact of the primary evolutionary forces on the genome, and test these methods using simulations. The new framework of genomic analysis will be disseminated through an intuitive software package, and will be used to estimate with unprecedented confidence the history of diversification and genome evolution of marsupials.Read moreRead less
Unravelling the molecular diversity and evolution of centipede venoms. The project intends to improve understanding of venom evolution in centipedes. Venoms have emerged as a rich source of pharmacological tools with potential for development into therapeutics and bioinsecticides. However, venoms-based discovery has been limited by the narrow taxonomical range of animals studied, with many groups of venomous animals overlooked. One such group is centipedes, whose venoms contain diverse toxins th ....Unravelling the molecular diversity and evolution of centipede venoms. The project intends to improve understanding of venom evolution in centipedes. Venoms have emerged as a rich source of pharmacological tools with potential for development into therapeutics and bioinsecticides. However, venoms-based discovery has been limited by the narrow taxonomical range of animals studied, with many groups of venomous animals overlooked. One such group is centipedes, whose venoms contain diverse toxins that differ between taxa. This project aims to provide an insight into centipede venom evolution, and how it might be constrained by venom-gland morphology. This study seeks to contribute to our understanding of protein evolution and direct biodiscovery efforts around centipede venom.Read moreRead less
Turning Selaginella into a model of plant reproductive evolution and ecology. The ancient genus Selaginella can reveal how natural selection shaped fundamental traits of plant reproduction like morphological differentiation of spores (a prerequisite for the evolution of seeds) and sexual division of reproductive investment. However, almost nothing is known of the ‘ecological theatre’ in which Selaginella evolves. This project will examine the worldwide phylogenetic pattern of reproductive traits ....Turning Selaginella into a model of plant reproductive evolution and ecology. The ancient genus Selaginella can reveal how natural selection shaped fundamental traits of plant reproduction like morphological differentiation of spores (a prerequisite for the evolution of seeds) and sexual division of reproductive investment. However, almost nothing is known of the ‘ecological theatre’ in which Selaginella evolves. This project will examine the worldwide phylogenetic pattern of reproductive traits in the genus, and combine field and greenhouse studies of Australian and Malaysian species in order to test fundamental ideas in evolutionary ecology such as the theory of sex allocation, and begin to establish the ecological and adaptive counterpart to Selaginella’s emerging role as a genomic model organism.Read moreRead less
The genetic architecture of colour polymorphism and speciation. Speciation, the process by which populations diverge and become distinct, is the engine that drives biodiversity and Darwin's 'mystery of mysteries'. Speciation is accelerated in species with multiple, discrete, coexisting colour forms; yet the genetic mechanisms underpinning this pattern are not known. This project aims to identify the genes underlying different colour forms and how they are distributed across the genome. The proj ....The genetic architecture of colour polymorphism and speciation. Speciation, the process by which populations diverge and become distinct, is the engine that drives biodiversity and Darwin's 'mystery of mysteries'. Speciation is accelerated in species with multiple, discrete, coexisting colour forms; yet the genetic mechanisms underpinning this pattern are not known. This project aims to identify the genes underlying different colour forms and how they are distributed across the genome. The project plans to test the prediction that these same areas of the genome show marked divergence between lineages that are in the process of becoming distinct species. Doing so may contribute significantly to our understanding of speciation, underlying genetic mechanisms, and genes generating colour variation in vertebrates.Read moreRead less