Discovery Early Career Researcher Award - Grant ID: DE210101235
Funder
Australian Research Council
Funding Amount
$424,500.00
Summary
Encounters with hominins: the history of human arrival in Sahul. This project aims to provide a detailed understanding on the remarkably complex encounters between archaic and modern human populations in Island Southeast Asia, New Guinea and Australia during the Pleistocene. The project plans to provide the largest collection of human genetic diversity from this vast geographical region and significantly advance current knowledge on one of the most intriguing questions in human evolution. These ....Encounters with hominins: the history of human arrival in Sahul. This project aims to provide a detailed understanding on the remarkably complex encounters between archaic and modern human populations in Island Southeast Asia, New Guinea and Australia during the Pleistocene. The project plans to provide the largest collection of human genetic diversity from this vast geographical region and significantly advance current knowledge on one of the most intriguing questions in human evolution. These insights are expected to bring important social and cultural benefits for Australia by unveiling the singularly deep genetic history of Aboriginal Australians, including their ancient connection to indigenous communities from Indonesia and New Guinea that extends back to when people first arrived in Australia.
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Characterisation of tumour variants of Devil Facial Tumour Disease. This project will take a new approach to cancer research by studying the evolution of Devil Facial Tumour Disease. The results will directly contribute to the conservation management of the Tasmanian devil, as well as generating new information on tumour growth, metastasis and emergence of resistance.
Transcriptome sequencing and functional characterisation of craniate non-visual sensory systems and their adaptation to diverse light environments. Light detection (photoreception) is critical to species survival. It is not limited to vision, but also serves to set biological rhythms. In mammals, all photoreception is thought to occur solely through the eye, but in non-mammals many other tissues directly monitor light levels. However, the signalling cascades and functional roles of these non-vis ....Transcriptome sequencing and functional characterisation of craniate non-visual sensory systems and their adaptation to diverse light environments. Light detection (photoreception) is critical to species survival. It is not limited to vision, but also serves to set biological rhythms. In mammals, all photoreception is thought to occur solely through the eye, but in non-mammals many other tissues directly monitor light levels. However, the signalling cascades and functional roles of these non-visual pathways are largely unknown. This project will use high-throughput sequencing technologies and functional analyses to trace the origin and function of different irradiance detection systems in each main craniate class. By comparing species from diverse photic habitats, the influence of light as a substrate for adaptation will be investigated.Read moreRead less
Genomics and evolution of symbiont transmission in coral reefs. This project aims to understand more deeply the symbiosis between coral and the alga Symbiodinium that underpins the primary productivity, biodiversity and economic impacts of Australia's iconic Great Barrier Reef. Reef-building corals are sustained by symbiosis between the coral and the alga Symbiodinium, and breakdown of symbiosis under environmental stress leads to coral bleaching and death. This project aims to understand how ge ....Genomics and evolution of symbiont transmission in coral reefs. This project aims to understand more deeply the symbiosis between coral and the alga Symbiodinium that underpins the primary productivity, biodiversity and economic impacts of Australia's iconic Great Barrier Reef. Reef-building corals are sustained by symbiosis between the coral and the alga Symbiodinium, and breakdown of symbiosis under environmental stress leads to coral bleaching and death. This project aims to understand how genomes of differently acquired Symbiodinium have evolved to support symbiosis with corals, through sequencing of algal genomes of Symbiodinium. This knowledge will improve the precision in predicting change to inform decision-making strategies in the conservation and restoration of coral reefs.Read moreRead less
Symbiodinium: the evolutionary transition to coral reef symbiont. Coral reefs are sustained by symbiosis between the coral host and dinoflagellates of genus Symbiodinium. Breakdown of this symbiosis under environmental stress results in coral bleaching and eventual death. This project aims to understand how dinoflagellate genomes have evolved to support a symbiotic lifestyle. The project aims to sequence genomes of Symbiodinium from reef corals and other hosts, and two free-living relatives. Thi ....Symbiodinium: the evolutionary transition to coral reef symbiont. Coral reefs are sustained by symbiosis between the coral host and dinoflagellates of genus Symbiodinium. Breakdown of this symbiosis under environmental stress results in coral bleaching and eventual death. This project aims to understand how dinoflagellate genomes have evolved to support a symbiotic lifestyle. The project aims to sequence genomes of Symbiodinium from reef corals and other hosts, and two free-living relatives. This should enable the identification of genes that have been gained or lost, or are under adaptive selection. This genome-scale perspective on the molecular systems implicated in the evolution of this symbiotic lifestyle has potential to inform strategies for preserving Australia's Great Barrier Reef in the face of climate variations.Read moreRead less
Sex and bottlenecks: understanding the evolutionary dynamics of bacterial adaptation. Bacteria can rapidly adapt to changing environments, often with devastating consequences for humans. However, this adaptive evolution is often limited by strong reductions in population size, in particular during transmission from one host to another. This project aims to investigate whether recombination in bacteria can overcome the limits that such bottlenecks impose on the rate of adaptation. To this end, it ....Sex and bottlenecks: understanding the evolutionary dynamics of bacterial adaptation. Bacteria can rapidly adapt to changing environments, often with devastating consequences for humans. However, this adaptive evolution is often limited by strong reductions in population size, in particular during transmission from one host to another. This project aims to investigate whether recombination in bacteria can overcome the limits that such bottlenecks impose on the rate of adaptation. To this end, it will construct mathematical models and complement them with evolution experiments in bacterial populations. Results from this research aim to generate fundamental insights into the role of recombination in bacterial evolution and will provide guidance for developing management strategies for bacterial pathogens.Read moreRead less
Predicting the evolutionary dynamics of adaptation. This project aims to address the question of how we can predict adaptive evolution. The project aims to probe the limits of evolutionary predictions by using a model system of bacterial populations that adapt to the presence of multiple stressors. This will be combined with high-throughput fitness measurements, whole genome sequencing and computer simulations. Anticipated outcomes include novel insights into deep questions regarding the structu ....Predicting the evolutionary dynamics of adaptation. This project aims to address the question of how we can predict adaptive evolution. The project aims to probe the limits of evolutionary predictions by using a model system of bacterial populations that adapt to the presence of multiple stressors. This will be combined with high-throughput fitness measurements, whole genome sequencing and computer simulations. Anticipated outcomes include novel insights into deep questions regarding the structure of fitness landscapes and the repeatability, predictability and contingency of adaptive evolution. The project is expected to provide significant benefits, informing the development of improved strategies for managing pathogen resistance to antimicrobial drugs.Read moreRead less
Diet, gut microbiota and the evolution of lifespan and reproduction. Nutrition has pronounced effects on lifespan and reproduction across animal species, yet how these effects are mediated is poorly understood. This project aims to determine if the gut microbiota regulates these nutritional effects. This project expects to deliver key insights on the complex interplay between nutrition and the gut microbiota, as well as the potential to manipulate this relationship to extend lifespan and alter r ....Diet, gut microbiota and the evolution of lifespan and reproduction. Nutrition has pronounced effects on lifespan and reproduction across animal species, yet how these effects are mediated is poorly understood. This project aims to determine if the gut microbiota regulates these nutritional effects. This project expects to deliver key insights on the complex interplay between nutrition and the gut microbiota, as well as the potential to manipulate this relationship to extend lifespan and alter reproduction. The expected outcomes of this project include generating new knowledge, building multidisciplinary collaborations and the development of novel experimental approaches. This should provide significant benefits, fore-most in bolstering Australia’s high international standing in evolutionary research. Read moreRead less
Adaptation to life in the dark: genomic analyses of blind beetles. This project aims to utilise a unique Australian model system based on multiple, independently-evolved subterranean water beetles to explore the adaptive and regressive changes in the genome that occur when surface species colonise subterranean habitats. This project focuses on the evolution of Heat Shock protein (Hsp) genes that play critical roles in adaptation to environmental stress and the process of de-canalisation, the rel ....Adaptation to life in the dark: genomic analyses of blind beetles. This project aims to utilise a unique Australian model system based on multiple, independently-evolved subterranean water beetles to explore the adaptive and regressive changes in the genome that occur when surface species colonise subterranean habitats. This project focuses on the evolution of Heat Shock protein (Hsp) genes that play critical roles in adaptation to environmental stress and the process of de-canalisation, the release of cryptic genetic variation that can allow novel morphologies to evolve in new environments. The project expects to provide further understanding of how species may potentially adapt to environmental stresses in the future, including climate change.Read moreRead less
Is regressive evolution associated with loss of gene function in subterranean animals? This project aims to investigate a fundamental biological process: the evolutionary basis for how non-functional characters, such as eyes in subterranean animals, are lost. It will use a unique model system based on eyeless water beetles, and utilise novel new genomic tools to test whether loss of characters results from gene inactivation.