Synthetic regulators of gene expression. RNA plays many essential roles in cells, from information transfer and regulation of gene expression to scaffolding macromolecular structures and catalysis. Despite these realisations the current approaches to manipulate RNA are limited in many respects. This project will use synthetic biology approaches to engineer synthetic regulators of RNAs in living cells. These studies will provide new tools for use in biological research and provide insights into h ....Synthetic regulators of gene expression. RNA plays many essential roles in cells, from information transfer and regulation of gene expression to scaffolding macromolecular structures and catalysis. Despite these realisations the current approaches to manipulate RNA are limited in many respects. This project will use synthetic biology approaches to engineer synthetic regulators of RNAs in living cells. These studies will provide new tools for use in biological research and provide insights into how natural proteins control gene expression. Furthermore, this project will use these tools to understand the mechanisms of how proteins are synthesised in mammalian mitochondria.Read moreRead less
Chemical signalling in the sea. This project aims to understand how eggs attract and select sperm, and how the environment influences these interactions. Differential sperm chemotaxis, a form of mate choice involving chemical signalling between eggs and sperm, has only been described in mussels, but may be a widespread form of gamete-level sexual selection. The project will study the biochemical and molecular basis of differential sperm chemotaxis in mussels, and the stability of gamete-level in ....Chemical signalling in the sea. This project aims to understand how eggs attract and select sperm, and how the environment influences these interactions. Differential sperm chemotaxis, a form of mate choice involving chemical signalling between eggs and sperm, has only been described in mussels, but may be a widespread form of gamete-level sexual selection. The project will study the biochemical and molecular basis of differential sperm chemotaxis in mussels, and the stability of gamete-level interactions under different environmental conditions. Improved fundamental knowledge of reproduction in a commercially important marine species may yield future commercial benefits for Australia’s marine food production sectorRead moreRead less
Engineering improved and multifunctional gene editing systems. Advances in genome editing have enabled the targeted modulation of gene expression in cells and provided new tools for biotechnology. This project will combine computational design and genetic selection to deliver the next generation of precision gene editing tools. These new technologies can be used for modification of genes in any cellular compartment and will be useful for understanding and improving energy metabolism. Increased c ....Engineering improved and multifunctional gene editing systems. Advances in genome editing have enabled the targeted modulation of gene expression in cells and provided new tools for biotechnology. This project will combine computational design and genetic selection to deliver the next generation of precision gene editing tools. These new technologies can be used for modification of genes in any cellular compartment and will be useful for understanding and improving energy metabolism. Increased cellular energy production can be harnessed to make valuable biological products, with unprecedented efficiency.Read moreRead less
eGenomics - Next generation biomonitoring of threatened species. DNA is the molecule of life and exists everywhere in the environment as a largely untapped source of information on evolution, biodiversity, and ecosystem health. Our overriding aim is to start mining that information to benefit threatened species. Based on optimized ancient DNA methods, powerful sequencing technology, whole genome analyses, and RNA profiling, we present a novel and holistic framework for genetic biomonitoring. In ....eGenomics - Next generation biomonitoring of threatened species. DNA is the molecule of life and exists everywhere in the environment as a largely untapped source of information on evolution, biodiversity, and ecosystem health. Our overriding aim is to start mining that information to benefit threatened species. Based on optimized ancient DNA methods, powerful sequencing technology, whole genome analyses, and RNA profiling, we present a novel and holistic framework for genetic biomonitoring. In two parallel model systems we will study corals and reptiles to improve environmental detection while simultaneously obtaining information on their population health. This will foster more efficient conservation of endangered species that are of tremendous importance to our marine and terrestrial ecosystems.Read moreRead less
Resolving the steps in the evolution of C4 photosynthesis. This project aims to identify the molecular mechanisms responsible for the evolution of grasses using the C4 biochemical pathway that enables plants to survive in hot, dry, high-light environments. The endemic Australian subtribe Neurachninae is the only known grass group that contains C4 species, species using the ancestral C3 pathway, as well as species using pathways intermediate to C3 and C4. Through a comparative approach employing ....Resolving the steps in the evolution of C4 photosynthesis. This project aims to identify the molecular mechanisms responsible for the evolution of grasses using the C4 biochemical pathway that enables plants to survive in hot, dry, high-light environments. The endemic Australian subtribe Neurachninae is the only known grass group that contains C4 species, species using the ancestral C3 pathway, as well as species using pathways intermediate to C3 and C4. Through a comparative approach employing high-throughput sequencing technologies, it is expected that the molecular changes underlying the transition from C3 to C4 will be identified. These results should define what is required to engineer plant varieties with increased yield and the ability to withstand climate change effects.Read moreRead less
Mitochondrial Retrograde Signalling in Plants – New Models and Analytical Approaches. Mitochondria are essential organelles involved in energy production and various metabolic and biosynthetic pathways in plant cells. Signals from mitochondria act to regulate nuclear gene expression to coordinate mitochondrial activity with cellular activity, which is called mitochondrial retrograde signalling (MRS). To date our knowledge of the pathways and components involved in MRS is limited to a single mode ....Mitochondrial Retrograde Signalling in Plants – New Models and Analytical Approaches. Mitochondria are essential organelles involved in energy production and various metabolic and biosynthetic pathways in plant cells. Signals from mitochondria act to regulate nuclear gene expression to coordinate mitochondrial activity with cellular activity, which is called mitochondrial retrograde signalling (MRS). To date our knowledge of the pathways and components involved in MRS is limited to a single model system. This proposal seeks to identify additional MRS pathways, characterise components of these pathways and the signals involved. This new knowledge can be used in translational research as a basis to breed plants with altered stress and growth properties.Read moreRead less
Exploring the gene regulation networks governing mitochondrial biogenesis in Arabidopsis. Mitochondria, subcellular organelles that perform many functions indispensable to plant growth and productivity, are dynamic compartments whose protein complement changes dramatically during plant development and under stress. Yet, the cellular processes that regulate the production of these organelles are virtually unknown. By combining conventional approaches with an extremely powerful holistic method for ....Exploring the gene regulation networks governing mitochondrial biogenesis in Arabidopsis. Mitochondria, subcellular organelles that perform many functions indispensable to plant growth and productivity, are dynamic compartments whose protein complement changes dramatically during plant development and under stress. Yet, the cellular processes that regulate the production of these organelles are virtually unknown. By combining conventional approaches with an extremely powerful holistic method for simultaneously examining the expression patterns of every gene in the model plant Arabidopsis, this project will identify proteins that regulate mitochondrial biosynthesis and uncover the gene networks that these proteins control. The project outcomes will provide new opportunities for the rational manipulation of plant growth and productivity.Read moreRead less
The roles and regulators of new plant cells linked to root transport. Plant genomics has moved to the single cell resolution, allowing precise investigations of previously hidden cell types and cell states that respond to environmental stress and that vary among differentially adapted plant populations. Here, we will extend our pioneering efforts that have mapped and discovered novel root cell types, to determine their salt and nutrient stress responses, and to elegantly dissect the underling ca ....The roles and regulators of new plant cells linked to root transport. Plant genomics has moved to the single cell resolution, allowing precise investigations of previously hidden cell types and cell states that respond to environmental stress and that vary among differentially adapted plant populations. Here, we will extend our pioneering efforts that have mapped and discovered novel root cell types, to determine their salt and nutrient stress responses, and to elegantly dissect the underling causal genetic variation. The unique cell markers and regulatory networks will be validated with tissue specific and transgenic tools that can work across a host of plant species to reveal adaptive cellular responses to harsh environmental conditions.Read moreRead less
Genome Approaches to Investigate Metabolic Coordination in Plant Cells. Metabolism of C and N in legume nodules requires interaction between the symbiotic bacteria and plant organelles, particularly metabolism in plastids and mitochondria. Fixed N is assimilated through the de novo synthesis of purines in both plastids and mitochondria. However, each of the nine pathway enzymes is encoded by a single gene, indicating each protein is targeted to both organelles. Purine metabolism will provide ....Genome Approaches to Investigate Metabolic Coordination in Plant Cells. Metabolism of C and N in legume nodules requires interaction between the symbiotic bacteria and plant organelles, particularly metabolism in plastids and mitochondria. Fixed N is assimilated through the de novo synthesis of purines in both plastids and mitochondria. However, each of the nine pathway enzymes is encoded by a single gene, indicating each protein is targeted to both organelles. Purine metabolism will provide a model to assess the more general occurrence of dual-targeted proteins in plants. The aim is to identify and eventually exploit the signalling mechanism(s) that mediate communication between plastids and mitochondria.Read moreRead less
Saving seagrass from climate change. This research aims to test whether seagrass ecosystems can be safeguarded from climate change impacts by enhancing genetic connectivity in range edge populations using novel genetic rescue approaches. We will use the range edge seagrass meadows of the UNESCO World Heritage Site of Shark Bay as our model, which was significantly impacted by a marine heat wave in 2010/2011. The project will generate new knowledge on how seagrasses can adapt and survive in situ. ....Saving seagrass from climate change. This research aims to test whether seagrass ecosystems can be safeguarded from climate change impacts by enhancing genetic connectivity in range edge populations using novel genetic rescue approaches. We will use the range edge seagrass meadows of the UNESCO World Heritage Site of Shark Bay as our model, which was significantly impacted by a marine heat wave in 2010/2011. The project will generate new knowledge on how seagrasses can adapt and survive in situ. Expected outcomes are improved conservation, management and restoration practices for seagrass meadows. This should provide significant benefits for long-term resilience of this economically and culturally significant ecosystem.Read moreRead less