Sympatric speciation in Australian sexually deceptive orchids. Speciation has generated the diversity of life, yet the mechanisms of speciation remain poorly understood. Chiloglottis orchids are pollinated by highly specific sexually attracted male pollinators-an intriguing and predominantly Australian pollination mechanism. New evidence indicates these orchids offer novel opportunities to illuminate the evolutionary processes of speciation. This project will integrate new and powerful molecul ....Sympatric speciation in Australian sexually deceptive orchids. Speciation has generated the diversity of life, yet the mechanisms of speciation remain poorly understood. Chiloglottis orchids are pollinated by highly specific sexually attracted male pollinators-an intriguing and predominantly Australian pollination mechanism. New evidence indicates these orchids offer novel opportunities to illuminate the evolutionary processes of speciation. This project will integrate new and powerful molecular laboratory procedures with field studies to investigate the mechanisms of speciation within the genus. These orchids may provide rare examples of sympatric speciation-the evolution of species in the absence of geographic isolation. This is currently a speciation mechanism of current and intense research interest worldwide.Read moreRead less
Analysing and modelling molecular rate variation among nuclear and mitochondrial genomes. My research will have important practical benefits for bioinformaticians and evolutionary biologists, because existing analytical methods will be rigorously tested and new tools will be developed. Australia has a comparatively high concentration of researchers in this field, so my research will foster domestic collaboration and import international expertise. The research will provide important insights int ....Analysing and modelling molecular rate variation among nuclear and mitochondrial genomes. My research will have important practical benefits for bioinformaticians and evolutionary biologists, because existing analytical methods will be rigorously tested and new tools will be developed. Australia has a comparatively high concentration of researchers in this field, so my research will foster domestic collaboration and import international expertise. The research will provide important insights into the rates and patterns of genetic changes associated with domestication, and into variation in evolutionary rates among the primate ancestors of humans. In addition to developing new software, which will be made publicly available, I will develop new evolutionary models to supplement existing software packages. Read moreRead less
Understanding “reinforcement”, an evolutionary process that can lead to the origin of new species and generate species diversity. Understanding how species are formed is of broad significance. National benefit will come from internationally competitive research and collaborations with leading international researchers. Benefits will also come under the ARC Priority Goals of 'An Environmentally Sustainable Australia' as I will (i) provide genetic data that will be invaluable for the conservation ....Understanding “reinforcement”, an evolutionary process that can lead to the origin of new species and generate species diversity. Understanding how species are formed is of broad significance. National benefit will come from internationally competitive research and collaborations with leading international researchers. Benefits will also come under the ARC Priority Goals of 'An Environmentally Sustainable Australia' as I will (i) provide genetic data that will be invaluable for the conservation of a highly threatened species, (ii) determine the importance of contact zones for generating new species and maintaining the evolutionary potential of regions, and (iii) address the role of climate change in shaping diversity over recent evolutionary time, an understanding of which is essential for predicting the impact of future change. Read moreRead less
Escalation of a coevolutionary arms race between cuckoos and their hosts: cognitive causes and evolutionary consequences. Cuckoos lay their eggs in the nests of other species, provoking an evolutionary arms race in which hosts evolve defences against parasitism and cuckoos evolve ever more cunning tricks to gain reproductive success. In principle, the degree of specialization required to defeat host defences could cause cuckoo speciation. Our previous research has revealed that the arms race bet ....Escalation of a coevolutionary arms race between cuckoos and their hosts: cognitive causes and evolutionary consequences. Cuckoos lay their eggs in the nests of other species, provoking an evolutionary arms race in which hosts evolve defences against parasitism and cuckoos evolve ever more cunning tricks to gain reproductive success. In principle, the degree of specialization required to defeat host defences could cause cuckoo speciation. Our previous research has revealed that the arms race between the Horsfield's bronze-cuckoo and its superb fairy-wren host has reached a uniquely advanced stage, hitherto undescribed, and previously thought imposssible to attain. We aim to investigate the mechanisms underlying this specialization and investigate whether it is driving speciation of the Chrysococcyx cuckoos.Read moreRead less
Do chromosomal rearrangements drive genomic evolution and speciation? This project aims to gain an understanding of the processes driving speciation using the internationally recognised and uniquely Australian rock-wallaby model system, where speciation appears to be caught in the act. Speciation is a fundamental evolutionary process, yet one that is not well understood. The project plans to use recent advances in marsupial genomics, bioinformatics, cytogenetics and epigenetics to determine the ....Do chromosomal rearrangements drive genomic evolution and speciation? This project aims to gain an understanding of the processes driving speciation using the internationally recognised and uniquely Australian rock-wallaby model system, where speciation appears to be caught in the act. Speciation is a fundamental evolutionary process, yet one that is not well understood. The project plans to use recent advances in marsupial genomics, bioinformatics, cytogenetics and epigenetics to determine the role that chromosome rearrangements play in the speciation process. This may provide critical knowledge for understanding the process of speciation and for future decisions regarding the effective management of biodiversity.Read moreRead less
Diversity out of a hybrid zone: the interplay of reinforcement and sexual selection in the formation of new species. How are there so many different species? Understanding how new species arise is a fundamental question because it explains current biodiversity and reveals the processes that will continue to give rise to new species in the future. An integral part of any animal species is who they choose to mate with, but how mate choice evolves to create new species remains poorly understood. He ....Diversity out of a hybrid zone: the interplay of reinforcement and sexual selection in the formation of new species. How are there so many different species? Understanding how new species arise is a fundamental question because it explains current biodiversity and reveals the processes that will continue to give rise to new species in the future. An integral part of any animal species is who they choose to mate with, but how mate choice evolves to create new species remains poorly understood. Here I will be studying the processes that affect the evolution of mate choice in an Australian rainforest frog hybrid zone. This system is uniquely suitable for providing internationally important insights into the evolutionary processes that form new species.Read moreRead less
Developing new methods to retrieve and analyse preserved genetic information. This project will position Australia at the leading edge of research into preserved DNA, and will use innovative molecular biology approaches to develop a range of new forensic, archaeological and medical applications. It will build Australian knowledge and scientific capacity by developing core expertise and training personnel in areas important for biosecurity, customs and quarantine, forensics/counter-terrorism, and ....Developing new methods to retrieve and analyse preserved genetic information. This project will position Australia at the leading edge of research into preserved DNA, and will use innovative molecular biology approaches to develop a range of new forensic, archaeological and medical applications. It will build Australian knowledge and scientific capacity by developing core expertise and training personnel in areas important for biosecurity, customs and quarantine, forensics/counter-terrorism, and studies of climate change. It will also create and foster research innovation in molecular biology with spin-offs for evolution, archaeology, medical and conservation biology research, and will also encourage involvement with the rapidly expanding field of genomics and bioinformatics.Read moreRead less
The Origin and Evolution of the Animal Phyla inferred from Analysis of Multiple-Gene Data. Australia has recently begun an extensive research programme in the genomics of our flora and fauna. The enormous amounts of data that emerge from such research are highly complex, but they hold the key to understanding how biological organisms change over time. Our research will untangle that data to answer fundamental, unanswered questions in modern science: How did the animal groups originate? How are ....The Origin and Evolution of the Animal Phyla inferred from Analysis of Multiple-Gene Data. Australia has recently begun an extensive research programme in the genomics of our flora and fauna. The enormous amounts of data that emerge from such research are highly complex, but they hold the key to understanding how biological organisms change over time. Our research will untangle that data to answer fundamental, unanswered questions in modern science: How did the animal groups originate? How are they related to each other? How is biodiversity changing? The answers to these questions and the new analytical tools we will develop will put Australia firmly on the international "map" of Bioinformatics.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150101259
Funder
Australian Research Council
Funding Amount
$371,000.00
Summary
The impact of urbanisation on viral diversity and disease emergence. Urbanisation increases the risk of infectious disease emergence by rapidly altering contact rates between humans and other species. Fortunately, many consequences of urbanisation appear to be universal, suggesting that it is possible to identify factors likely to increase the risk of viral disease emergence and predict their impacts. This project aims to examine the viral response to changes in host and vector population struct ....The impact of urbanisation on viral diversity and disease emergence. Urbanisation increases the risk of infectious disease emergence by rapidly altering contact rates between humans and other species. Fortunately, many consequences of urbanisation appear to be universal, suggesting that it is possible to identify factors likely to increase the risk of viral disease emergence and predict their impacts. This project aims to examine the viral response to changes in host and vector population structure and dynamics that occur as a result of urbanisation, and identify viral characteristics that are associated with survival in an urban environment. This novel fusion of urban and viral ecology will have unprecedented impact on the development of predictive models of viral emergence for risk assessment and management.Read moreRead less
Epigenetic silencing in vertebrates: evolution and function from the bottom-up. The primary benefits are contribution to Australia's knowledge base and raising the profile of functional genomics in Australia, with the research priority of Frontier Technologies for Building and Transforming Australian Industries and priority goals in Breakthrough Science and Frontier Technologies. This project focuses on important biological questions surrounding gene regulation and sex chromosome evolution. Inte ....Epigenetic silencing in vertebrates: evolution and function from the bottom-up. The primary benefits are contribution to Australia's knowledge base and raising the profile of functional genomics in Australia, with the research priority of Frontier Technologies for Building and Transforming Australian Industries and priority goals in Breakthrough Science and Frontier Technologies. This project focuses on important biological questions surrounding gene regulation and sex chromosome evolution. International attention has already resulted in genome characterization of Australian icons (wallaby, Tasmanian devil and platypus), more research on these, and other Australian animals, will further highlight the importance of Australian fauna and impact positively on our scientific profile.Read moreRead less