Organisation, expression and diversity of the sub-telomeric regions of the ancient eukaryote, Giardia duodenalis. We propose to extend our findings on the extreme plasticity of the structure and organisation of the sub-telomeric region of the complete genome of Giardia by more extensive chromosome walking, and comparison of different isolates. These regions are subject to gene conversion, transcriptional silencing, gene mobility, recombination, variable surface protein expression, subtelomeric i ....Organisation, expression and diversity of the sub-telomeric regions of the ancient eukaryote, Giardia duodenalis. We propose to extend our findings on the extreme plasticity of the structure and organisation of the sub-telomeric region of the complete genome of Giardia by more extensive chromosome walking, and comparison of different isolates. These regions are subject to gene conversion, transcriptional silencing, gene mobility, recombination, variable surface protein expression, subtelomeric instability and the insertion of transposable elements, a dynamic balance between structural conservation and rapid evolution. This is a rare opportunity to understand the forces at work in moulding eukaryotic sub-telomeric sequences because Giardia is not constrained by sexual homogenisation and the dynamic variability is retained.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989859
Funder
Australian Research Council
Funding Amount
$1,000,000.00
Summary
A Multi-Resolution X-ray Microtomography Facility (NanoCT & MicroCT) for Non-Destructive 3D Characterisation. X-ray microtomography platforms are applicable to a wide diversity of research across many of the national research priority areas. The research outlined will provide insights into bone cancer and osteoporosis, promote breakthroughs in the understanding of tumour biology and drive new developments in novel biomaterials, all of which have significant national health benefits. In dentistr ....A Multi-Resolution X-ray Microtomography Facility (NanoCT & MicroCT) for Non-Destructive 3D Characterisation. X-ray microtomography platforms are applicable to a wide diversity of research across many of the national research priority areas. The research outlined will provide insights into bone cancer and osteoporosis, promote breakthroughs in the understanding of tumour biology and drive new developments in novel biomaterials, all of which have significant national health benefits. In dentistry, research supported by this instrumentation will provide Australians with improvements to their dental health. Furthermore applications to industrial materials are providing Australian industries with better characterisation of their products that is leading to improved export performance and consequent improvement in Australia's balance of trade.Read moreRead less
Biogeography and evolution of Australia's fossil reptiles: A global perspective. Large marine reptiles such as plesiosaurs, and missing links such as legged snakes, are spectacular animals that have captured public attention. This collaboration will directly enhance public museum displays by collecting and preparing these spectacular fossils; many of the fossils found by the CIs are now centerpieces of museum displays (e.g. the SA museum). Also, it will also promote awareness and sustainable u ....Biogeography and evolution of Australia's fossil reptiles: A global perspective. Large marine reptiles such as plesiosaurs, and missing links such as legged snakes, are spectacular animals that have captured public attention. This collaboration will directly enhance public museum displays by collecting and preparing these spectacular fossils; many of the fossils found by the CIs are now centerpieces of museum displays (e.g. the SA museum). Also, it will also promote awareness and sustainable use of the environment: it will facilitate CI Kear in running earthwatch-style ecotourism field trips which promote sustainable use of finite fossil resources by making them commercially valuable to local communities as a source of tourism revenue.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0775598
Funder
Australian Research Council
Funding Amount
$1,000,000.00
Summary
High-Resolution Transmission Electron Tomographic Facility for Nanoanalytical Characterisation in the Life and Material Sciences. The requested instrument will allow researchers in New South Wales to (i) visualize biological and physical samples in three-dimensions by electron tomography and modeling and (ii) image samples in a near-natural state and at high-resolution by cryogenic techniques. This essential research platform will provide novel information that faithfully presents both the surfa ....High-Resolution Transmission Electron Tomographic Facility for Nanoanalytical Characterisation in the Life and Material Sciences. The requested instrument will allow researchers in New South Wales to (i) visualize biological and physical samples in three-dimensions by electron tomography and modeling and (ii) image samples in a near-natural state and at high-resolution by cryogenic techniques. This essential research platform will provide novel information that faithfully presents both the surface and internal structure of samples down to the nanometre scale, enabling structural research to the highest scientific standards. The resulting knowledge is essential to diverse areas that range from development of cures to diabetes and cancer to creation of environmentally-friendly industrial catalysts to design of new nanoparticles and biosensors.Read moreRead less
Deep Downunder: designing a deep-sea exploration and discovery capability for Australia. Exploration of the deep-sea with the modern technologies to be developed by Deep-Downunder is a first for Australia. We aim to explore and discover life at depths from 50-3000m off The Great Barrier Reef, around the seamounts of Lord Howe Island and Tasmania and in the deep canyons of WA and SA. We expect to discover new species, hope for a glimpse of giant squid at home and will answer specific questions on ....Deep Downunder: designing a deep-sea exploration and discovery capability for Australia. Exploration of the deep-sea with the modern technologies to be developed by Deep-Downunder is a first for Australia. We aim to explore and discover life at depths from 50-3000m off The Great Barrier Reef, around the seamounts of Lord Howe Island and Tasmania and in the deep canyons of WA and SA. We expect to discover new species, hope for a glimpse of giant squid at home and will answer specific questions on Australia's ocean biology, fisheries and biotechnology never before approachable. To be effective guardians of Australian waters we must learn what lies in the depths we can't see from a boat.Read moreRead less
The Cambrian Population Explosion of Arthropods in Australia: Ediacaran origins, evolution and biodiversity. This project addresses key questions on the origin and diversification of life, by investigating the evolution of the most important fossil group (arthropods) across arguably the most important event after the origin of life (the Cambrian explosion of macroscopic life). It will also excavate, promote and conserve two key geological resources of national importance, in the Flinders Ranges ....The Cambrian Population Explosion of Arthropods in Australia: Ediacaran origins, evolution and biodiversity. This project addresses key questions on the origin and diversification of life, by investigating the evolution of the most important fossil group (arthropods) across arguably the most important event after the origin of life (the Cambrian explosion of macroscopic life). It will also excavate, promote and conserve two key geological resources of national importance, in the Flinders Ranges and Kangaroo Island. Also, it will lead to increased knowledge of the palaeoecology and geology of the economically-important Adelaide geosyncline, and benefit rural SA communities through ecotourism, a rural schools education program, and public outreach.Read moreRead less
Colour vision and photoreceptors in reef fish: a model system to discover the function of double cones. Humans are visual animals and as lucky Australians we love to look at The Great Barrier Reef. This project, while rooted in the complexities of visual neurobiology, uses a recently discovered set of 4 different reef fish from the GBR to teach us more about fundamental principles in vision. These fish, diverse as damselfish and snappers, will help solve a mystery centuries old. Double cones are ....Colour vision and photoreceptors in reef fish: a model system to discover the function of double cones. Humans are visual animals and as lucky Australians we love to look at The Great Barrier Reef. This project, while rooted in the complexities of visual neurobiology, uses a recently discovered set of 4 different reef fish from the GBR to teach us more about fundamental principles in vision. These fish, diverse as damselfish and snappers, will help solve a mystery centuries old. Double cones are the commonest daytime photoreceptor in the eyes of almost all vertebrates (humans without them are exceptions) and yet nobody knows what they do. Reef fish have them, so let's ask them what they see!Read moreRead less
Cellular and network basis of information processing in the mammalian visual system. The project aims to discover the strategies by which cells in the brain interact with each other to code the sensory input efficiently. It is expected that simultaneous recording of the activity of many neurones from the visual cortex of anaesthetised cats during visual stimulation will reveal how the biophysics of synaptic integration combined with excitatory and inhibitory inputs from different sources sculpt ....Cellular and network basis of information processing in the mammalian visual system. The project aims to discover the strategies by which cells in the brain interact with each other to code the sensory input efficiently. It is expected that simultaneous recording of the activity of many neurones from the visual cortex of anaesthetised cats during visual stimulation will reveal how the biophysics of synaptic integration combined with excitatory and inhibitory inputs from different sources sculpts the output of individual neurones. The experiments will be extended to the study of possible interactions between different areas of the brain and the study of mechanisms by which the cortical network and higher cognitive factors such as attention and memory might influence the coding of sensory information in awake animals.Read moreRead less
Kingdom switching microbial pathogens: the bioinformatics of mutation in the genomes of viruses and bacteria affecting crops, livestock and people. Some organisms that cause infectious diseases have moved between plants and vertebrates, either recently or repeatedly over evolutionary time. Switching between plants and vertebrates strongly influences the way these microbes mutate and evolve. We will search the genomic sequence databases for information about how the choice of host influences muta ....Kingdom switching microbial pathogens: the bioinformatics of mutation in the genomes of viruses and bacteria affecting crops, livestock and people. Some organisms that cause infectious diseases have moved between plants and vertebrates, either recently or repeatedly over evolutionary time. Switching between plants and vertebrates strongly influences the way these microbes mutate and evolve. We will search the genomic sequence databases for information about how the choice of host influences mutations in viral and bacterial genomes and model the evolutionary processes involved. This project will advance our understanding of the fine structure of microbial genomes and the importance of selection pressures on genes. It will lead to better disease management strategies for humans, and for domestic crops and livestock.Read moreRead less
Neurons isolated from embryonic stem cells as functional models for drug discovery. By using gene expression-based selection criteria embryonic stem cells can be driven to differentiate into specific neuronal lineages which show many of the morphological characteristics and immunocytochemical features of neurons in culture. There is, however, comparatively little evidence indicating that these stem cell-derived neurons actually behave as neurons. Our aim is to characterise and contrast four ne ....Neurons isolated from embryonic stem cells as functional models for drug discovery. By using gene expression-based selection criteria embryonic stem cells can be driven to differentiate into specific neuronal lineages which show many of the morphological characteristics and immunocytochemical features of neurons in culture. There is, however, comparatively little evidence indicating that these stem cell-derived neurons actually behave as neurons. Our aim is to characterise and contrast four neuronal cell cultures established with gene-based selection criteria. These cultures will be characterised by gene expression, immunocytochemistry, radiolabelled neurotransmitter release, electrophysiology and Ca2+ imaging studies. This study will highlight the functional effects of gene selection procedures upon stem cell-derived neurons.Read moreRead less