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Marsupial germ cells and genes. Germ cells are the most fascinating cells in the body, since theirs is the unique responsibility for transmitting life from generation to generation. Studies in mice have suggested that position in the embryo determines their origin, but the early embryology of the mouse is so different from that of other mammals that the events need confirming and extending in another species. The simplified embryology of the tammar wallaby makes it ideal for studying one of the ....Marsupial germ cells and genes. Germ cells are the most fascinating cells in the body, since theirs is the unique responsibility for transmitting life from generation to generation. Studies in mice have suggested that position in the embryo determines their origin, but the early embryology of the mouse is so different from that of other mammals that the events need confirming and extending in another species. The simplified embryology of the tammar wallaby makes it ideal for studying one of the most fundamental questions in the whole of biology: what is the basis for the primal distinction between sex and soma?Read moreRead less
How does the unilaminar blastocyst form an embryo? Marsupials are synonymous with Australia and they are scientifically amazing. An understanding how the single-layered marsupial blastocyst cells are directed to form the complex organisation of an embryo would help us understand the biology underlying the developmental potential of all cells. Understanding these processes is not only of great fundamental interest to developmental biology but also for the development of embryonic stem cell lines. ....How does the unilaminar blastocyst form an embryo? Marsupials are synonymous with Australia and they are scientifically amazing. An understanding how the single-layered marsupial blastocyst cells are directed to form the complex organisation of an embryo would help us understand the biology underlying the developmental potential of all cells. Understanding these processes is not only of great fundamental interest to developmental biology but also for the development of embryonic stem cell lines. This research will continue Australia's high profile in reproductive biology using one of our iconic native mammals. A greater understanding of marsupial reproduction will also contribute to management of our threatened marsupial populations.Read moreRead less
Identification of nuclear reprogramming factors in oocyte cytoplasm. The mature oocyte contains dominant factors that are capable of erasing tissue specific gene expression profiles of somatic cells. These reprogramming factors would be valuable for dedifferentiation of cells and for nuclear transfer in animal cloning. The research involves determination of reprogramming factors present in active cytoplasm following enucleation of the germinal vesicle, blockage of transcription and translation, ....Identification of nuclear reprogramming factors in oocyte cytoplasm. The mature oocyte contains dominant factors that are capable of erasing tissue specific gene expression profiles of somatic cells. These reprogramming factors would be valuable for dedifferentiation of cells and for nuclear transfer in animal cloning. The research involves determination of reprogramming factors present in active cytoplasm following enucleation of the germinal vesicle, blockage of transcription and translation, and timed cultures. The assays will involve maintenance of reprogramming ability and erasure of somatic gene transcription. By subtractive elimination the function of isolated proteins which are involved in reprogramming will be identified for potential recombinant production.Read moreRead less
Improving the efficiency of CRISPR gene editing in cells. Human red blood cells are well-characterised and the globin gene locus is a model system for the study of gene regulation. Gene editing technologies and delivery tools are evolving rapidly and the globin gene locus is the perfect model for gene editing optimisation. This collaboration between UNSW Sydney and CSL aims to bring together our combined expertise and new technologies to develop an optimal platform for genetic modification in a ....Improving the efficiency of CRISPR gene editing in cells. Human red blood cells are well-characterised and the globin gene locus is a model system for the study of gene regulation. Gene editing technologies and delivery tools are evolving rapidly and the globin gene locus is the perfect model for gene editing optimisation. This collaboration between UNSW Sydney and CSL aims to bring together our combined expertise and new technologies to develop an optimal platform for genetic modification in a red blood cell line. Simultaneously, this project aims to generate fundamental insights into mechanisms of human gene regulation. The technological and biological outcomes of this project will be of benefit for future gene editing applications.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100085
Funder
Australian Research Council
Funding Amount
$414,864.00
Summary
Elucidating a novel mechanism for coping with harmful mutations. This project aims to improve our understanding of the complex regulatory mechanisms that increase genetic and phenotypic robustness. Survival of organisms depends on their ability to cope with genetic variation. A novel process of genetic compensation has recently been identified, producing a normal phenotype in a homozygous mutant, that would be expected to have deleterious effects. This project will reveal how compensation is ach ....Elucidating a novel mechanism for coping with harmful mutations. This project aims to improve our understanding of the complex regulatory mechanisms that increase genetic and phenotypic robustness. Survival of organisms depends on their ability to cope with genetic variation. A novel process of genetic compensation has recently been identified, producing a normal phenotype in a homozygous mutant, that would be expected to have deleterious effects. This project will reveal how compensation is achieved by examining the molecular pathways that are activated following genetic mutation. This project is expected to strengthen Australian reputation in evolutionary genetics, and in turn enhance our understanding of how organisms adapt to changing environments.Read moreRead less
Discovering mechanisms of primary embryonic tissue migration through live cell imaging and novel genetic approaches. The studies proposed here will provide concepts and knowledge about the molecular basis of cell migration that will impact on diverse aspects of human health, such as the causes and nature of tumour metastasis and our understanding of the developmental basis of birth defects. In addition, understanding cell migration mechanisms will allow us to better predict or control the behav ....Discovering mechanisms of primary embryonic tissue migration through live cell imaging and novel genetic approaches. The studies proposed here will provide concepts and knowledge about the molecular basis of cell migration that will impact on diverse aspects of human health, such as the causes and nature of tumour metastasis and our understanding of the developmental basis of birth defects. In addition, understanding cell migration mechanisms will allow us to better predict or control the behaviour of therapeutic stem cells introduced into the body.Read moreRead less
Transcription factors find their targets by reading the epigenetic code. This project aims to elucidate how transcription factors, proteins that regulate gene expression, find their target genes. The hypothesis is that non-DNA binding domains play an essential role in this process. This project expects to transform our understanding of transcription factor families, and how factors in families with the same DNA-binding domain manage to regulate different genes. Expected outcomes of this project ....Transcription factors find their targets by reading the epigenetic code. This project aims to elucidate how transcription factors, proteins that regulate gene expression, find their target genes. The hypothesis is that non-DNA binding domains play an essential role in this process. This project expects to transform our understanding of transcription factor families, and how factors in families with the same DNA-binding domain manage to regulate different genes. Expected outcomes of this project include revealing how accessory proteins help transcription factors identify their targets in the genome by reading epigenetic marks. This should provide significant benefits including improved design of artificial transcription factors to up- or down-regulate specific genes in research and agriculture.Read moreRead less
Designer DNA-binding factors. This project aims to use a natural transcription factor family to enhance the efficiency and functionality of designer DNA-binding factors. Research into the structure and function of zinc finger transcription factors, TAL effectors and CRISPR created designer DNA-binding factors. However, though research has improved the specificity of these factors’ genome-wide binding, their efficacy in regulating the expression of genes requires improvement. Using sequencing, th ....Designer DNA-binding factors. This project aims to use a natural transcription factor family to enhance the efficiency and functionality of designer DNA-binding factors. Research into the structure and function of zinc finger transcription factors, TAL effectors and CRISPR created designer DNA-binding factors. However, though research has improved the specificity of these factors’ genome-wide binding, their efficacy in regulating the expression of genes requires improvement. Using sequencing, the project intends to enhance the efficiency and function of these factors by designing modules to improve the stability of DNA binding and effectiveness in functionally regulating gene expression. The project outcomes could include knowledge enabling the use of genetically engineered DNA-binding proteins to artificially control gene expression, with significant scientific and economic implications.Read moreRead less
Unravelling the contributions of Denisovan DNA to the peoples of Oceania. This project aims to investigate the impact gene flow from Denisovans, an archaic hominin species, has had on individuals from Papua New Guinea and eastern Indonesia. These people owe up to 5% of their genomes to these mysterious ancestors, but the repercussions of this finding remain poorly understood. In order to identify the biological contributions these fragments of DNA make to the individuals who carry them, this pro ....Unravelling the contributions of Denisovan DNA to the peoples of Oceania. This project aims to investigate the impact gene flow from Denisovans, an archaic hominin species, has had on individuals from Papua New Guinea and eastern Indonesia. These people owe up to 5% of their genomes to these mysterious ancestors, but the repercussions of this finding remain poorly understood. In order to identify the biological contributions these fragments of DNA make to the individuals who carry them, this project aims to combine anthropological genetics with cutting-edge functional genomics in a pioneer multidisciplinary approach. Ultimately, this project may transform our understanding of both the population and evolutionary pressures that have acted upon these groups in the past 50,000 years.Read moreRead less
Endocardial sprouting and mechano-signalling in heart trabeculation. This project aims to understand how the ventricles, the pumping chambers of the mammalian heart, form during embryonic life. Critical is the elaboration of trabeculae, myocardial projections that form a sponge-like layer on the inner surface of the chamber wall and which play vital roles in contraction, oxygen and nutrient exchange, conduction and septation. The project expects to develop a deeper understanding of trabeculation ....Endocardial sprouting and mechano-signalling in heart trabeculation. This project aims to understand how the ventricles, the pumping chambers of the mammalian heart, form during embryonic life. Critical is the elaboration of trabeculae, myocardial projections that form a sponge-like layer on the inner surface of the chamber wall and which play vital roles in contraction, oxygen and nutrient exchange, conduction and septation. The project expects to develop a deeper understanding of trabeculation using high resolution, single cell methodologies, and to investigate how bio-mechanical forces from contraction or blood flow influence chambers formation.Read moreRead less