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Evolution of halophytes: a phyloinformatic approach to understanding and exploiting the traits underlying salt-tolerance in plants. Salinity is an increasing burden on the Australian economy & environment, with >2 million ha of salt-affected land, at an annual cost to agriculture over $187 million. One solution is to exploit naturally salt-tolerant plants to increase productive agricultural land and restore salt-affected environments. To do this, we must increase basic knowledge of the diversity ....Evolution of halophytes: a phyloinformatic approach to understanding and exploiting the traits underlying salt-tolerance in plants. Salinity is an increasing burden on the Australian economy & environment, with >2 million ha of salt-affected land, at an annual cost to agriculture over $187 million. One solution is to exploit naturally salt-tolerant plants to increase productive agricultural land and restore salt-affected environments. To do this, we must increase basic knowledge of the diversity & distribution of salt-tolerance. This project is the first to use DNA sequences from thousands of species to understand the evolution of salt-tolerance in order to provide the foundation for the development of new crop varieties, selection of species that can be developed for bioremediation, and identification of traits that will be profitable targets for breeding programs. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130100470
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Understanding mechanisms and functions of evolutionary divergence in innate immune genes. Microorganisms constantly challenge the immune systems of all multi-cellular organisms, and host immune genes must be able to co-evolve with microbes in order for a species to propagate. This project will investigate how host immune genes in a species evolve to enable that species to continue.
Why aren't all species everywhere? The evolution of species' borders in tropical reef fishes. Virtually nothing is known about how geographic range limits evolve in the wild in the absence of barriers to dispersal and habitat discontinuities. This project will investigate the evolution of range limits of fishes on the Great Barrier Reef using combinations of mathematical modelling and field- and laboratory-based analyses of evolutionary patterns and processes. By advancing understanding of the ....Why aren't all species everywhere? The evolution of species' borders in tropical reef fishes. Virtually nothing is known about how geographic range limits evolve in the wild in the absence of barriers to dispersal and habitat discontinuities. This project will investigate the evolution of range limits of fishes on the Great Barrier Reef using combinations of mathematical modelling and field- and laboratory-based analyses of evolutionary patterns and processes. By advancing understanding of the fundamental causes of species' range limits, this research will provide new options for the management and conservation of this very valuable resource, and other complex biological systems, under increasing pressures of exploitation, habitat degradation and climate change.Read moreRead less
Community-level selection: Empirical tests in a microbial system. Given the profile of the question of community-level selection as a long-running controversy, the main benefit of the proposed work, which will critically test the idea in an empirical system, will be to increase recognition of Australia's position as a research nation in evolutionary biology. In exploring mechanisms of floc formation, a key component of wastewater treatment, the work will establish important foundations for impro ....Community-level selection: Empirical tests in a microbial system. Given the profile of the question of community-level selection as a long-running controversy, the main benefit of the proposed work, which will critically test the idea in an empirical system, will be to increase recognition of Australia's position as a research nation in evolutionary biology. In exploring mechanisms of floc formation, a key component of wastewater treatment, the work will establish important foundations for improving the efficiency of wastewater treatment. Improvement in performance of only a few percent will bring important economic savings. This is evidenced by recent commitment of >$US 230 billion to improving the efficiency of wastewater treatment in Germany, Italy and Spain over 5 years.Read moreRead less
A new and rapidly evolving class of plant peptides. The project will study a diverse class of drug-like mini-proteins that are thought to have emerged genetically over 12 million years ago. This project will explore why plants have kept making these mini-proteins for so long and whether it is the same reason the founding member of this mini-protein class is such a good drug.
Can Sexual Selection Generate Reproductive Isolation? Sexual selection has long been thought to be central to the process of speciation and numerous models have been proposed to explain its contribution. However, the ability of sexual selection to generate reproductive isolation has never been evaluated experimentally and there is limited direct evidence for its role in speciation in nature. Using Drosophila serrata, I intend to conduct a large scale experimental test of the role of sexual selec ....Can Sexual Selection Generate Reproductive Isolation? Sexual selection has long been thought to be central to the process of speciation and numerous models have been proposed to explain its contribution. However, the ability of sexual selection to generate reproductive isolation has never been evaluated experimentally and there is limited direct evidence for its role in speciation in nature. Using Drosophila serrata, I intend to conduct a large scale experimental test of the role of sexual selection in the origin of new species. I will manipulate mate choice by placing male pheromones under artificial selection and then tracking the evolution of reproductive isolation in the presence and absence of sexual selection.Read moreRead less
Are good males bad females? Sexual conflict in hermaphrodites. Animal hermaphrodites (organisms that are both males and females) are extremely common and important from both an economic and ecological perspective but we know little about the evolution of this group. This project will examine how sexual conflict, so pervasive in organisms with separate sexes, affects the evolution of hermaphrodites.
A conserved pathway of cell death in response to invading DNA. This project aims to characterise molecular details of a new pathway of foreign DNA recognition and rapid cell death. Recognition of foreign DNA is a key means by which both bacteria and eukaryotic cells can detect infections, as well as guard their own genome. Eukaryotic cell DNA is sequestered in the nucleus and organelles, and any DNA found in the cytosol is a danger signal. The project proposes that cytosolic DNA-induced cell dea ....A conserved pathway of cell death in response to invading DNA. This project aims to characterise molecular details of a new pathway of foreign DNA recognition and rapid cell death. Recognition of foreign DNA is a key means by which both bacteria and eukaryotic cells can detect infections, as well as guard their own genome. Eukaryotic cell DNA is sequestered in the nucleus and organelles, and any DNA found in the cytosol is a danger signal. The project proposes that cytosolic DNA-induced cell death is a fundamental eukaryotic defensive response, but surprisingly, the known pathway is restricted to macrophages of some mammals. Project outcomes may be applied to protein expression yield in biotechnology or advances in gene therapy.Read moreRead less
Evolutionary origin of stem cells and the emergence of animal complexity. The project aims to decipher the fundamental mechanisms governing stem cell specification and formation. All animals rely on stem cells to replenish, repair and regenerate tissues. Stem cells are also often a conduit to malignant tumours. This project seeks to uncover the rules governing stem cell formation through the study of a simple and ancient animal – the marine sponge Amphimedon queenslandica. The project plans to c ....Evolutionary origin of stem cells and the emergence of animal complexity. The project aims to decipher the fundamental mechanisms governing stem cell specification and formation. All animals rely on stem cells to replenish, repair and regenerate tissues. Stem cells are also often a conduit to malignant tumours. This project seeks to uncover the rules governing stem cell formation through the study of a simple and ancient animal – the marine sponge Amphimedon queenslandica. The project plans to combine insights from the simple, experimentally-tractable sponge stem cell system with existing knowledge of stem cell specification in humans and other animals, to reveal the essential features of stem cell formation. These insights may inform future pursuits to generate, control and use stem cells in cancer and regenerative medicines.Read moreRead less
Koala retrovirus epidemic: genetic diversity, genome invasion and disease. This project aims to study the role the koala retrovirus (KoRV) plays in disease of koalas and the mechanisms of transmission in the advancing epidemic. This project aims to firstly, identify mechanisms that govern the rate of southerly dissemination for the ongoing KoRV epidemic and secondly, identify virulence factors that endow KoRV subtypes with distinct modes of transmission that contribute to disease outcome. Unders ....Koala retrovirus epidemic: genetic diversity, genome invasion and disease. This project aims to study the role the koala retrovirus (KoRV) plays in disease of koalas and the mechanisms of transmission in the advancing epidemic. This project aims to firstly, identify mechanisms that govern the rate of southerly dissemination for the ongoing KoRV epidemic and secondly, identify virulence factors that endow KoRV subtypes with distinct modes of transmission that contribute to disease outcome. Understanding the mechanisms behind this advancing epidemic will have important implications for conservation efforts.Read moreRead less