Genomic signatures of adaptive diversification in woodland Eucalyptus. This project aims to map the sources of adaptive alleles underlying diversification is to reveal insights into the mechanisms of speciation. The source of the raw material for evolution can have significant impacts on the speed with which populations can adapt. An emerging pattern in speciation research is the importance of ancient alleles and introgressed genes, which differ in the genomic signatures left by selection. Eucal ....Genomic signatures of adaptive diversification in woodland Eucalyptus. This project aims to map the sources of adaptive alleles underlying diversification is to reveal insights into the mechanisms of speciation. The source of the raw material for evolution can have significant impacts on the speed with which populations can adapt. An emerging pattern in speciation research is the importance of ancient alleles and introgressed genes, which differ in the genomic signatures left by selection. Eucalyptus offers a unique opportunity to explore these modes of evolution using the latest genomic tools. Improving our understanding of adaptation and genetic variation in woodland eucalypts is expected to make a significant contribution to their conservation, management and restoration.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150101206
Funder
Australian Research Council
Funding Amount
$372,536.00
Summary
Beyond genes: How the extended genotype of plants facilitates adaptation. Adaptation to environmental change is required for species to persist, however rapid environmental change may exceed the limits of traditional genetic adaptation leading to widespread decline. Recent work has highlighted the 'extended genotype' as an additional factor influencing adaptive phenotypes. This project aims to examine DNA methylation and polyploidisation as both a cause and consequence of the adaptation process ....Beyond genes: How the extended genotype of plants facilitates adaptation. Adaptation to environmental change is required for species to persist, however rapid environmental change may exceed the limits of traditional genetic adaptation leading to widespread decline. Recent work has highlighted the 'extended genotype' as an additional factor influencing adaptive phenotypes. This project aims to examine DNA methylation and polyploidisation as both a cause and consequence of the adaptation process using natural populations of the model cereal Brachypodium distachyon. The project aims to determine the architecture of these features and how their variability impacts adaptive traits such as flowering time. From the functional role of the extended genotype the project endeavours to predict and select genetic responses to the environment.Read moreRead less
Using genetics to recover Australia's lost history. This project aims to use historic hair samples collected by anthropological expeditions in the early 20th Century to generate the first genetic map of Aboriginal Australia – in order to reconstruct Australia’s pre-European genetic and cultural past. The map and the detailed contextual and genealogical information from museum archives will assist Aboriginal communities and individuals to reconstruct their personal and family history and trace an ....Using genetics to recover Australia's lost history. This project aims to use historic hair samples collected by anthropological expeditions in the early 20th Century to generate the first genetic map of Aboriginal Australia – in order to reconstruct Australia’s pre-European genetic and cultural past. The map and the detailed contextual and genealogical information from museum archives will assist Aboriginal communities and individuals to reconstruct their personal and family history and trace ancestry and augment oral or written records. The combination of cutting-edge science, detailed archival research, and a comprehensive family outreach and reporting program will be a step change in assisting Australia’s reconciliation process, the Stolen Generation, and repatriation of Indigenous remains.Read moreRead less
The evolution and conservation consequences of promiscuity in plants pollinated by vertebrates. Pollen dispersal between plants, predominantly by insects and wind, is characteristically restricted to nearest neighbours. Recent molecular analysis of paternity for a Banksia pollinated by nectar-feeding birds showed atypical pollen dispersal, with high multiple paternity, wide outcrossing and local panmixis. With much of the Australian flora also bird-pollinated, our initial results have potentiall ....The evolution and conservation consequences of promiscuity in plants pollinated by vertebrates. Pollen dispersal between plants, predominantly by insects and wind, is characteristically restricted to nearest neighbours. Recent molecular analysis of paternity for a Banksia pollinated by nectar-feeding birds showed atypical pollen dispersal, with high multiple paternity, wide outcrossing and local panmixis. With much of the Australian flora also bird-pollinated, our initial results have potentially wide and novel significance. This project proposes to test the generality of our observations for other vertebrate-pollinated species, and to test the conservation and evolutionary consequences of reduced pollen dispersal caused by habitat fragmentation and declining pollinators for a pollination paradigm facilitating promiscuity.Read moreRead less
Landscape restoration genomics for climate adaptation in eucalyptus foundation species. Understanding the genetic basis of adaptation in foundation species will allow selection of pre-adapted seeds to establish resilient ecosystems which support the broad range of life supporting services. This project will apply genomics to solve real environmental challenges in restoration management and be a model for other foundation species.
Genomics for persistence of Australian freshwater fish. Biodiversity faces an unpredictable cocktail of impacts and global environmental change, against which the best insurance is genetic diversity. We will develop genomic measures of ecological-genetic functions and evolutionary potential for managing Australian freshwater fish.
Discovery Early Career Researcher Award - Grant ID: DE140100864
Funder
Australian Research Council
Funding Amount
$394,334.00
Summary
Discovering The Effect of alpha-actinin-3 Deficiency on Muscle Adaptations to Exercise Training in Humans. The protein alpha-actinin-3 is expressed in fast muscle fibres. A common gene variant results in complete deficiency in alpha-actinin-3 that has been shown to influence athletic performance. A mouse model has been previously generated to demonstrate that alpha-actinin-3 deficiency results in a significant shift in fast muscle fibres, towards the slow, more efficient muscle fibres. This proj ....Discovering The Effect of alpha-actinin-3 Deficiency on Muscle Adaptations to Exercise Training in Humans. The protein alpha-actinin-3 is expressed in fast muscle fibres. A common gene variant results in complete deficiency in alpha-actinin-3 that has been shown to influence athletic performance. A mouse model has been previously generated to demonstrate that alpha-actinin-3 deficiency results in a significant shift in fast muscle fibres, towards the slow, more efficient muscle fibres. This project will demonstrate the effects of alpha-actinin-3 deficiency on the characteristics of human muscle pre and post exercise training. Outcomes will include major applications for personalising health recommendations and in designing preventative programs for ageing.Read moreRead less
The origins, global spread and evolution of novel honey bee parasites. This project aims to study how emergent diseases arise, spread and evolve, studying varroa mites – a parasite of honey bees that will inevitably arrive in Australia and is expected to damage agriculture and the environment. As the mites have a well-characterised native range, independent host switches and a well-documented history of spread, they make good models. Mites have evolved after invasion, although without significan ....The origins, global spread and evolution of novel honey bee parasites. This project aims to study how emergent diseases arise, spread and evolve, studying varroa mites – a parasite of honey bees that will inevitably arrive in Australia and is expected to damage agriculture and the environment. As the mites have a well-characterised native range, independent host switches and a well-documented history of spread, they make good models. Mites have evolved after invasion, although without significant genetic differentiation at neutral markers. This project aims to identify genetic mechanisms associated with the host switches; reconstruct the pattern and demography of varroa’s global spread; and determine how selection acted on the mites after the host switch.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100685
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
Historical pest genomes inform debate about how rapid evolution proceeds. This project plans to compare the genomes of archived and contemporary specimens to discover how two key Australian pest moths have adapted to insecticides, aiding prediction of how they may respond in the future. Agricultural pest species are often capable of rapid adaptation to insecticides, resulting in widespread genetic resistance. Does this resistance build on existing genetic variation, or are fresh mutations used t ....Historical pest genomes inform debate about how rapid evolution proceeds. This project plans to compare the genomes of archived and contemporary specimens to discover how two key Australian pest moths have adapted to insecticides, aiding prediction of how they may respond in the future. Agricultural pest species are often capable of rapid adaptation to insecticides, resulting in widespread genetic resistance. Does this resistance build on existing genetic variation, or are fresh mutations used to produce a fast adaptive response? How do adaptive strategies differ among key Australian pests? This project aims to answer these questions and advance understanding of mechanisms that underpin rapid evolution to improve approaches toward pest management and agricultural protection.Read moreRead less
E. coli as an indicator of faecal contamination in the Australian context. The goal of this research is to improve our ability to use Escherichia coli as an indicator of water quality by determining the extent to which non-faecal sources of E. coli contribute to coliform counts and to develop a method to differentiate non-faecal E. coli from those that are faecal derived.