Developing the dunnart as a marsupial model for conservation research. The Australian bushfire crisis of 2020 has taken an enormous toll on our unique wildlife. With no halt in sight to rising global temperatures, more extreme weather events are predicted to increase in frequency and severity. We simply must act now to preserve our unique native mammals in Australia and safeguard against species loss and irreversible declines in genetic diversity. This project will develop methods for the genera ....Developing the dunnart as a marsupial model for conservation research. The Australian bushfire crisis of 2020 has taken an enormous toll on our unique wildlife. With no halt in sight to rising global temperatures, more extreme weather events are predicted to increase in frequency and severity. We simply must act now to preserve our unique native mammals in Australia and safeguard against species loss and irreversible declines in genetic diversity. This project will develop methods for the generation and preservation of stem cells from a range of our most endangered and vulnerable marsupial species. These cells not only allow us to ‘bank’ species and genetic diversity but also provide a route to enabling genetic manipulation, opening up a completely new niche for conservation biology in marsupials.Read moreRead less
Macrophage control of mammalian growth and development. The immediate postnatal period in mammals is crucial for survival, long term health and productivity. This project is an international collaboration that aims to investigate how cells of the innate immune system called macrophages control somatic growth and development of mature organ function in the early postnatal period. The project aims to build upon investment in new animals models and a novel discovery to generate significant new know ....Macrophage control of mammalian growth and development. The immediate postnatal period in mammals is crucial for survival, long term health and productivity. This project is an international collaboration that aims to investigate how cells of the innate immune system called macrophages control somatic growth and development of mature organ function in the early postnatal period. The project aims to build upon investment in new animals models and a novel discovery to generate significant new knowledge that will challenge current concepts of mammalian growth control. The outcomes will enhance Australia's international reputation in the fields of physiology, immunology and developmental biology. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100103
Funder
Australian Research Council
Funding Amount
$459,674.00
Summary
Fortifying animal and plant germ cells against proteotoxic stress. Cellular stress is responsible for widespread inefficiencies in plant and animal reproduction. Using high resolution proteomics and cryo-electron microscopy, this project aims to investigate how plant and animal germ cells respond to environmental stresses that are known to disrupt fertility, and assess two novel strategies to decrease the sensitivity of cells to stress. This project is expected to generate new global knowledge i ....Fortifying animal and plant germ cells against proteotoxic stress. Cellular stress is responsible for widespread inefficiencies in plant and animal reproduction. Using high resolution proteomics and cryo-electron microscopy, this project aims to investigate how plant and animal germ cells respond to environmental stresses that are known to disrupt fertility, and assess two novel strategies to decrease the sensitivity of cells to stress. This project is expected to generate new global knowledge in the area of fertility regulation with the potential to improve the tolerance of crop species to heat stress, prevent economic losses and help to secure future food production. Further, this project has the intended benefit of improving the fertility of animal species that suffer from stress-induced infertility.
Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100375
Funder
Australian Research Council
Funding Amount
$428,191.00
Summary
Defining single-strand DNA break repair capacity in oocytes. This project aims to investigate fundamental biological mechanisms required for the production of high-quality oocytes, which fortify female fertility and the propagation of all sexually reproducing species. Exploiting unique mouse models, this study will define the importance of single strand DNA break repair capacity in oocytes for the first time, by outlining the role of single strand DNA repair proteins in maintaining genetic integ ....Defining single-strand DNA break repair capacity in oocytes. This project aims to investigate fundamental biological mechanisms required for the production of high-quality oocytes, which fortify female fertility and the propagation of all sexually reproducing species. Exploiting unique mouse models, this study will define the importance of single strand DNA break repair capacity in oocytes for the first time, by outlining the role of single strand DNA repair proteins in maintaining genetic integrity of gametes throughout their lifespan. In doing so, the intended outcome of this project is to dramatically improve our understanding of quality control in the female germ line. This should provide significant benefits to Australia by positioning it as a world leader in the field of Reproductive Science.Read moreRead less
Is SPINT1 a key regulator of placental development? . The placenta is an essential organ required for reproduction in placental species. This project aims to elucidate the fundamental biology of SPINT1 in placental development. It will generate new knowledge about whether the spatial and temporal expression of SPINT1 is conserved across several species; cow, sheep, lizard, mouse and human. It will also define the molecular mechanisms by which SPINT1 directs formation, maturation and expansion o ....Is SPINT1 a key regulator of placental development? . The placenta is an essential organ required for reproduction in placental species. This project aims to elucidate the fundamental biology of SPINT1 in placental development. It will generate new knowledge about whether the spatial and temporal expression of SPINT1 is conserved across several species; cow, sheep, lizard, mouse and human. It will also define the molecular mechanisms by which SPINT1 directs formation, maturation and expansion of the placental exchange interface which is critical for offspring survival.
The project will increase understanding of placental development, enhance collaboration and research knowhow, and promote future applied projects in all species that reproduce via placental support.Read moreRead less
Control of developmental switches by importin 5. Aims: This project will study a key molecular switch called IPO5, a protein that is required for cells and organs to form and function normally, and it will reveal how it works.
Significance: These experiments will provide the first complete description of how this molecular switch controls the behaviour of a cell across its lifespan. IPO5 is highly conserved, so these studies will be relevant to a wide range of animals.
Expected Outcomes: This k ....Control of developmental switches by importin 5. Aims: This project will study a key molecular switch called IPO5, a protein that is required for cells and organs to form and function normally, and it will reveal how it works.
Significance: These experiments will provide the first complete description of how this molecular switch controls the behaviour of a cell across its lifespan. IPO5 is highly conserved, so these studies will be relevant to a wide range of animals.
Expected Outcomes: This knowledge will reveal how IPO5 controls formation of sperm by revealing what other proteins it binds to and how this affects cell signaling and responses to the environment.
Benefits: This will provide information about potential interventions to control fertility or to repair abnormal cells.
Read moreRead less
Mechanisms that control the inheritance of mitochondrial DNA mutations. How do humans and other organisms prevent the accumulation of dangerous mitochondrial genome (mtDNA) mutations across generations? This Project aims to uncover the cellular and molecular pathways that help prevent the inheritance of mtDNA mutations to offspring by employing cutting-edge genetic technologies that the laboratory has recently developed in the germline of an animal model system. This Project will generate new kn ....Mechanisms that control the inheritance of mitochondrial DNA mutations. How do humans and other organisms prevent the accumulation of dangerous mitochondrial genome (mtDNA) mutations across generations? This Project aims to uncover the cellular and molecular pathways that help prevent the inheritance of mtDNA mutations to offspring by employing cutting-edge genetic technologies that the laboratory has recently developed in the germline of an animal model system. This Project will generate new knowledge in the area of mitochondrial genetics and evolution. Expected outcomes include the development of new theories for mtDNA inheritance, which should provide significant benefits for agricultural breeding programs and the interpretation of mtDNA inheritance patterns in the human population.Read moreRead less
Inflammation as an early form of maternal-fetal signalling in pregnancy. The project aims to understand the role of inflammatory signalling in marsupial pregnancy. This project is expected to explain why inflammation, a processes normally confined to injury and infection, is a part of reproduction in live-bearing mammals. Outcomes of this project include robust measures of the capacity for, impact of, and evolution of, inflammatory signalling in marsupial pregnancy. The project will provide new ....Inflammation as an early form of maternal-fetal signalling in pregnancy. The project aims to understand the role of inflammatory signalling in marsupial pregnancy. This project is expected to explain why inflammation, a processes normally confined to injury and infection, is a part of reproduction in live-bearing mammals. Outcomes of this project include robust measures of the capacity for, impact of, and evolution of, inflammatory signalling in marsupial pregnancy. The project will provide new knowledge about the unique biology of Australia's marsupial fauna.This project will provide significant benefits, including enhanced capacity for reproduction research in Australia, new international collaborations between Melbourne and Yale, and a new explanation for the puzzling role of inflammation in pregnancy.Read moreRead less
The immune response as a determinant of female reproductive investment. Aims: This project will define how ‘cryptic female choice’ affects reproductive outcomes through immune recognition of embryo histocompatibility genes, to modulate maternal nutrient provision and fetal growth.
Significance: The research will tackle an important knowledge gap in animal reproduction science, where poorly-understood male-female compatibility effects cause variation in breeding efficiency with major economic an ....The immune response as a determinant of female reproductive investment. Aims: This project will define how ‘cryptic female choice’ affects reproductive outcomes through immune recognition of embryo histocompatibility genes, to modulate maternal nutrient provision and fetal growth.
Significance: The research will tackle an important knowledge gap in animal reproduction science, where poorly-understood male-female compatibility effects cause variation in breeding efficiency with major economic and environmental impact.
Expected outcomes: We expect to generate new understanding of the genes, immune response elements, and vascular changes that explain compatibility effects.
Benefits: The results will inform strategies to improve fertility in livestock animals, and in rare and threatened species.
Read moreRead less
DNA repair: a critical quality control mechanism in the female germ line. This project aims to investigate the fundamental biological mechanisms required for the production of high quality gametes, which underpin female fertility and the propagation of all sexually reproducing species. By taking advantage of unique mouse and avian models, this project expects to define the role of the DNA repair protein TOP3A in the successful completion of meiosis and it's requirement for the survival and genet ....DNA repair: a critical quality control mechanism in the female germ line. This project aims to investigate the fundamental biological mechanisms required for the production of high quality gametes, which underpin female fertility and the propagation of all sexually reproducing species. By taking advantage of unique mouse and avian models, this project expects to define the role of the DNA repair protein TOP3A in the successful completion of meiosis and it's requirement for the survival and genetic integrity of gametes throughout their lifespan. In doing so, the intended outcome of this project is to dramatically improve our understanding of quality control in the female germ line. This should provide significant benefits to Australia by positioning it as a world leader in the field of Reproductive Science.Read moreRead less