Functionally characterizing mammalian microRNAs and mRNA interactions controlling cell division. This project addresses some of the most burning issues in molecular biology and genetic research, and the results will be widely applicable to a broad range of fields, including biotechnology, animal breeding, agricultural production, genetic engineering, medical science, and computational biology. By understanding the regulatory potential of microRNA molecules, we will understand more about species ....Functionally characterizing mammalian microRNAs and mRNA interactions controlling cell division. This project addresses some of the most burning issues in molecular biology and genetic research, and the results will be widely applicable to a broad range of fields, including biotechnology, animal breeding, agricultural production, genetic engineering, medical science, and computational biology. By understanding the regulatory potential of microRNA molecules, we will understand more about species diversity, regulatory networks, and plant and animal development. The early adoption of multi-gigabase next-generation sequencing technology in Australia provides rare and exciting opportunity to lead the world in genome-scale research, and to ensure that Australia has the necessary skill base to remain internationally competitive in this field.Read moreRead less
Genetics of longevity and the delay of post-reproductive senescence. Ageing of the population in the coming decades will cause an increasing health care burden. Diseases of ageing such as Alzheimer's, heart disease, Parkinson's and a range of cancers, as well as impairments of ageing such as reduced mobility and cognitive ability are all caused or exacerbated by oxidative stress. With some exceptions, current medical practices focus on surgical repair or drug therapy to alleviate symptoms of ag ....Genetics of longevity and the delay of post-reproductive senescence. Ageing of the population in the coming decades will cause an increasing health care burden. Diseases of ageing such as Alzheimer's, heart disease, Parkinson's and a range of cancers, as well as impairments of ageing such as reduced mobility and cognitive ability are all caused or exacerbated by oxidative stress. With some exceptions, current medical practices focus on surgical repair or drug therapy to alleviate symptoms of ageing rather than addressing the physiological causes of ageing itself. Our project will provide understanding of natural systems that prevent age-related senescence due to oxidative stress. The goal is to identify novel and natural ways to maximise the fitness, well-being and self-sufficiency of people as they age.Read moreRead less
Intron encoded RNA regulatory networks in yeast. This project has the capacity to transform our understanding of the evolution, development and genetic variation of complex organisms, as well as the self-organization of complex systems in general. The national and community benefits of the project will be to maintain Australian leadership in advanced genetics and genome-phenome informatics. It will provide a platform for many applications in biology and biotechnology, including new genetic diagn ....Intron encoded RNA regulatory networks in yeast. This project has the capacity to transform our understanding of the evolution, development and genetic variation of complex organisms, as well as the self-organization of complex systems in general. The national and community benefits of the project will be to maintain Australian leadership in advanced genetics and genome-phenome informatics. It will provide a platform for many applications in biology and biotechnology, including new genetic diagnostics and an informed basis for the engineering of complex traits in agriculture. The project will also provide insights into the structure of biological communication and control systems with applications in information science and the programming of integrated complex systems in other domains.Read moreRead less
Inter-kingdom signalling in animal health and disease. This project aims to understand how animals can control their bacterial associates. Animals evolved in a world dominated by bacteria, and intimately associated microbes affect the development, health and disease of all animals – from corals to man. To date, animal-microbe interactions have been studied nearly exclusively in terms of how bacteria affect animals. the researchers have discovered that the coral Acropora can control its associate ....Inter-kingdom signalling in animal health and disease. This project aims to understand how animals can control their bacterial associates. Animals evolved in a world dominated by bacteria, and intimately associated microbes affect the development, health and disease of all animals – from corals to man. To date, animal-microbe interactions have been studied nearly exclusively in terms of how bacteria affect animals. the researchers have discovered that the coral Acropora can control its associated bacteria. Understanding how a simple animal manipulates its microbial associates should have implications for coral disease and resilience and for health and disease across the animal kingdom.Read moreRead less
Transcriptional regulation of erythropoiesis. The major expected outcome from this proposal will be development of a pipeline for the study of how transcription factors work at a genome level. There will be national benefit in the areas of Frontier Technologies, and Promoting and Maintaining Good Health. There will be specific outcomes with respect to development of tests for human blood diseases, future design of drugs to target the aberrant activities of transcription factors in genetic and de ....Transcriptional regulation of erythropoiesis. The major expected outcome from this proposal will be development of a pipeline for the study of how transcription factors work at a genome level. There will be national benefit in the areas of Frontier Technologies, and Promoting and Maintaining Good Health. There will be specific outcomes with respect to development of tests for human blood diseases, future design of drugs to target the aberrant activities of transcription factors in genetic and degenerative diseases. Also, a strong bridge will be built upon the previous collaborations of the research teams in Brisbane and Pennsylvania, which will facilitate advanced teaching and training of Australian PhD and post-doctoral scientists.Read moreRead less
MULTIVARIATE QUANTITATIVE GENETICS AND THE LEK PARADOX. This research program as the potential to change the way evolutionary biologists view how selection changes the available patterns of genetic variance and covariance. In particular, it will highlight the possibility that a lack of genetic variance in multi-trait systems may be an important mechanism that limits the response to selection. It is therefore addresses a fundamental problem in quantitative genetics that underlies selection li ....MULTIVARIATE QUANTITATIVE GENETICS AND THE LEK PARADOX. This research program as the potential to change the way evolutionary biologists view how selection changes the available patterns of genetic variance and covariance. In particular, it will highlight the possibility that a lack of genetic variance in multi-trait systems may be an important mechanism that limits the response to selection. It is therefore addresses a fundamental problem in quantitative genetics that underlies selection limits in evolution and agriculture.Read moreRead less
Mapping Speciation Genes. Although Darwin's seminal work was entitled "On the Origin of Species", how new species arise is still poorly understood. Modern genetic techniques and quantitative trait loci analysis (QTLs) potentially allow the characterization of the genetic basis of traits directly involved in the speciation process. I intend to conduct two complementary QTL analyses of reproductive isolation in the Drosophila serrata complex. The first will determine the genetic basis of reproduc ....Mapping Speciation Genes. Although Darwin's seminal work was entitled "On the Origin of Species", how new species arise is still poorly understood. Modern genetic techniques and quantitative trait loci analysis (QTLs) potentially allow the characterization of the genetic basis of traits directly involved in the speciation process. I intend to conduct two complementary QTL analyses of reproductive isolation in the Drosophila serrata complex. The first will determine the genetic basis of reproductive isolation between D. serrata and D. birchii, while the second will determine if the same loci are currently under natural selection in D. serrata populations that are sympatric with D. birchii.Read moreRead less
Natural Selection on Mate Recognition in Field Populations of Drosophila serrata. Natural selection on mate recognition is thought to play an important role in the process of speciation. Stronger mating discrimination between closely related species in areas where their distributions overlap, referred to as reproductive character displacement, suggests that mate recognition has been reinforced by natural selection. Drosophila serrata displays reproductive character displacement in areas where ....Natural Selection on Mate Recognition in Field Populations of Drosophila serrata. Natural selection on mate recognition is thought to play an important role in the process of speciation. Stronger mating discrimination between closely related species in areas where their distributions overlap, referred to as reproductive character displacement, suggests that mate recognition has been reinforced by natural selection. Drosophila serrata displays reproductive character displacement in areas where it occurs alongside the congener D. birchii. Using a combination of molecular and quantitative genetic techniques I will investigate how reproductive character displacement has evolved in natural populations of D. serrata. Specifically, the role that natural selection has played in generating this pattern will be evaluated.Read moreRead less
The Genomic Dimensionality of the Response to Natural Selection. Many future advances in agriculture and medicine, as well as an understanding of adaptive evolution in natural and pest populations will require discovering the genes that regulate the expression of complex traits. Microarray technology is at the forefront of modern genomics, but despite its promise, is currently restricted in its utility by significant analytical problems associated with the analysis of the large number of gene ex ....The Genomic Dimensionality of the Response to Natural Selection. Many future advances in agriculture and medicine, as well as an understanding of adaptive evolution in natural and pest populations will require discovering the genes that regulate the expression of complex traits. Microarray technology is at the forefront of modern genomics, but despite its promise, is currently restricted in its utility by significant analytical problems associated with the analysis of the large number of gene expression profiles and their interpretation. Analytical approaches will be developed that will substantially enhance the ability of transcriptional profiling to effectively uncover key genes underlying important phenotypes of interest across the biological and medical sciences.Read moreRead less
Does divergent natural selection drive the early stages of speciation? Australia is a megadiverse country containing more than one million species, including many endemic and endangered species. Nonetheless, human driven activities, including climate change and the introduction of invasive pests, threaten Australia's biodiversity and economic wealth. This project will test how species diversify in response to environmental differences and will provide resources to compliment efforts to better un ....Does divergent natural selection drive the early stages of speciation? Australia is a megadiverse country containing more than one million species, including many endemic and endangered species. Nonetheless, human driven activities, including climate change and the introduction of invasive pests, threaten Australia's biodiversity and economic wealth. This project will test how species diversify in response to environmental differences and will provide resources to compliment efforts to better understand the destructive effects of interbreeding between native and invasive plants. Information on the role of the environment on the origin of new species will help us manage Australia's unique biodiversity. This project will provide research training opportunities in ecology, genetics, and molecular biology.Read moreRead less