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Discovery Early Career Researcher Award - Grant ID: DE120102575
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Exploring new territory in climatic adaptation research: integrating molecular genetics with species' thermal tolerance limits. Predicting species' responses to environmental change requires mechanistic links between whole-organism physiological stress responses and underlying cellular mechanics. This project integrates cutting-edge methods in molecular and evolutionary genetics to probe species' responses to environmental change in the context of a warming environment.
How do Microbes Grow in High Salt at Very Cold Temperatures. The proposed research aims to define mechanisms of survival and speciation that underpin the capacity of a novel group of Antarctic microorganisms to evolve dominance in their very cold (-20 degrees Celsius) and very salty environment. Most (~85 per cent) of the Earth's biosphere is cold (<5 degrees Celsius), and yet contains a rich diversity of microorganisms of which we know little. The uniqueness and sensitivity of Antarctica partic ....How do Microbes Grow in High Salt at Very Cold Temperatures. The proposed research aims to define mechanisms of survival and speciation that underpin the capacity of a novel group of Antarctic microorganisms to evolve dominance in their very cold (-20 degrees Celsius) and very salty environment. Most (~85 per cent) of the Earth's biosphere is cold (<5 degrees Celsius), and yet contains a rich diversity of microorganisms of which we know little. The uniqueness and sensitivity of Antarctica particularly demands that we rapidly improve our understanding of its biology. The discoveries made could provide fundamental insight about speciation - processes controlling which life forms that colonise the planet.Read moreRead less
Antarctic freshwater lake fauna: Palaeobiogeography, palaeoecology and applications to climate change studies. The origins of the Antarctic freshwater fauna are poorly known: Are the species currently extant long-term endemics descended from species present before the formation of the Antarctic ice-cap, or are they recent invaders from more temperate zones? By studying the distribution of faunal remains in the sediments of freshwater lakes, a picture of the development of the fauna in space and ....Antarctic freshwater lake fauna: Palaeobiogeography, palaeoecology and applications to climate change studies. The origins of the Antarctic freshwater fauna are poorly known: Are the species currently extant long-term endemics descended from species present before the formation of the Antarctic ice-cap, or are they recent invaders from more temperate zones? By studying the distribution of faunal remains in the sediments of freshwater lakes, a picture of the development of the fauna in space and time ('palaeobiogeography') will be formed that will allow the Antarctic fauna to be placed in a wider biogeographic context. Changes in the faunal distribution will also be interpreted in terms of lake palaeoecology and climate change.Read moreRead less
Effects of ants and ant-mediated dispersal on speciation rates, biogeography and diversity of angiosperms. This work seeks to improve our general understanding of longstanding questions in ecology in evolution, namely what are the processes that have allowed some groups to become diverse and others not, why does dispersal mode vary with geography, and how do speciation and extinction vary across space, time and taxon? In answering these questions, we will address some of the most fundamental que ....Effects of ants and ant-mediated dispersal on speciation rates, biogeography and diversity of angiosperms. This work seeks to improve our general understanding of longstanding questions in ecology in evolution, namely what are the processes that have allowed some groups to become diverse and others not, why does dispersal mode vary with geography, and how do speciation and extinction vary across space, time and taxon? In answering these questions, we will address some of the most fundamental questions in conservation, including what are the factors that make species geographically rare, which species are most at risk for climate change, and what are the factors that have led habitats like the Kwongan Heath and Fynbos to be so exceptionally biodiverse.Read moreRead less
Body size in the 21st century: integrating evolution, economics and culture. This project will study how evolution and biology interact with culture and economics to shape two important aspects of our world and our lives: the unfolding global obesity crisis and the complex, nuanced judgments people make about body shape. This research will inform the public health issues of obesity and body image problems.
Discovery Early Career Researcher Award - Grant ID: DE190100805
Funder
Australian Research Council
Funding Amount
$382,656.00
Summary
Phylogenetic methods for genome surveillance of microbial pathogens. This project aims to develop phylogenetic approaches to harness the potential evolution of bacterial and virus pathogens data and to improve early detection of infectious outbreaks. Genome surveillance programs consist in routine sequencing of particular organisms to track their evolution over time. Such programs currently exist for important bacterial and virus pathogens. This project expects to develop computational methods t ....Phylogenetic methods for genome surveillance of microbial pathogens. This project aims to develop phylogenetic approaches to harness the potential evolution of bacterial and virus pathogens data and to improve early detection of infectious outbreaks. Genome surveillance programs consist in routine sequencing of particular organisms to track their evolution over time. Such programs currently exist for important bacterial and virus pathogens. This project expects to develop computational methods to improve our understanding of pathogen outbreak emergence and infectious spread using genome data. This project will expand our knowledge base and research capability in the evolution and epidemiology of infectious agents, and aid in the prevention and control strategies of infectious disease benefiting the research priorities of food and health.Read moreRead less
Nowcasting outbreaks leveraging genomic and epidemiological data. This project aims to inform outbreak response planning by developing new models of infectious disease outbreaks. The project expects to generate new knowledge on the processes driving ongoing outbreaks including those of the novel coronavirus (COVID-19) and African swine fever by integrating the latest advances in Bayesian outbreak inference alongside unique simulation approaches. Expected outcomes should include a shift in how mo ....Nowcasting outbreaks leveraging genomic and epidemiological data. This project aims to inform outbreak response planning by developing new models of infectious disease outbreaks. The project expects to generate new knowledge on the processes driving ongoing outbreaks including those of the novel coronavirus (COVID-19) and African swine fever by integrating the latest advances in Bayesian outbreak inference alongside unique simulation approaches. Expected outcomes should include a shift in how models are developed and used to inform the response to outbreaks as they unfold. This should enable more rapid outbreak containment in Australia and overseas, leading to reduced impacts on public and animal health, and associated industries.Read moreRead less
Environmentally Induced Non-genetic Effects on Ageing and Fitness over Multi-generations and the Evolution of Life-history Trade-offs. This project will study trade-offs among growth, lifespan and fecundity, and test the following three predictions by employing a short-lived fish model and cutting-edge statistical and computational modelling. First, different dietary conditions not only affect the fitness of the organism, but also that of subsequent generations. Second, different nutritional eff ....Environmentally Induced Non-genetic Effects on Ageing and Fitness over Multi-generations and the Evolution of Life-history Trade-offs. This project will study trade-offs among growth, lifespan and fecundity, and test the following three predictions by employing a short-lived fish model and cutting-edge statistical and computational modelling. First, different dietary conditions not only affect the fitness of the organism, but also that of subsequent generations. Second, different nutritional effects and transgenerational effects on fitness-related traits are underpinned by epigenetic (or non-genetic) modifications. Third, such epigenetic modifications and their inheritance influence the evolution of life-history trade-offs. This project will link the emerging field of epigenetics with evolutionary theory, and reveal mechanisms of transgenerational epigenetic inheritance. Read moreRead less
A new universal mechanism controlling body proportions in animals. This project aims to establish that a recently-discovered mechanism, the inhibitory cascade, determines the basic proportions of appendages and body segments in a diverse range of animal groups, particularly vertebrates and arthropods. The goals of the project are to reveal the molecular mechanisms in mice and insects, and build computer simulations to show how to manipulate the control of development by the inhibitory cascade. T ....A new universal mechanism controlling body proportions in animals. This project aims to establish that a recently-discovered mechanism, the inhibitory cascade, determines the basic proportions of appendages and body segments in a diverse range of animal groups, particularly vertebrates and arthropods. The goals of the project are to reveal the molecular mechanisms in mice and insects, and build computer simulations to show how to manipulate the control of development by the inhibitory cascade. The project should benefit bioengineering by establishing control mechanisms for the manipulation and regeneration of teeth and limbs.Read moreRead less
Evolution of defensive and predatory venom in cone snails. This project aims to determine the molecular and cellular origins and mechanisms regulating venom production and release to establish how defensive venoms evolved in cone snails. Cone snails possess a remarkable ability to rapidly and reversibly switch between separate venoms in response to predatory or defensive stimuli, implying that these are separately evolved and regulated mechanisms. The investigators hypothesise that defensive ven ....Evolution of defensive and predatory venom in cone snails. This project aims to determine the molecular and cellular origins and mechanisms regulating venom production and release to establish how defensive venoms evolved in cone snails. Cone snails possess a remarkable ability to rapidly and reversibly switch between separate venoms in response to predatory or defensive stimuli, implying that these are separately evolved and regulated mechanisms. The investigators hypothesise that defensive venoms, originally evolved in the proximal venom duct to protect against threats such as cephalopod and fish predation, have been repurposed in the proximal duct to allow predators to become prey, facilitating the switch from worm to mollusc and fish hunting. The project aims to show the broad implications for the evolution of venoms in animals and discover the regulatory mechanisms driving venom peptide expression.Read moreRead less