Putting sexual selection in a life-history context: What is meant by genetic quality? Theories of sexual signalling have been developed largely without reference to life-history theory and quantitative genetics. We will test recent theory that shows the costs of signals are best measured in units of future survival and reproduction. In a series of field and laboratory experiments on the cricket Teleogryllus commodus, we will test the idea that the "male genetic quality" referred to by good-genes ....Putting sexual selection in a life-history context: What is meant by genetic quality? Theories of sexual signalling have been developed largely without reference to life-history theory and quantitative genetics. We will test recent theory that shows the costs of signals are best measured in units of future survival and reproduction. In a series of field and laboratory experiments on the cricket Teleogryllus commodus, we will test the idea that the "male genetic quality" referred to by good-genes models of sexual selection is quality in the general ability to acquire resources, rather than in how resources are allocated among fitness components.Read moreRead less
Nanotechnology in nature: the evolutionary significance of iridescent ultraviolet colouration in butterflies. Nanostructural colour is a novel and interesting biological phenomenon that has potential application in textile and paint industries. This research has the potential to uncover knowledge relevant to future genetic manipulation and/or artificial synthesis of this trait for industry. Fundamental benefits will include a contribution to our understanding of evolution and biological diversit ....Nanotechnology in nature: the evolutionary significance of iridescent ultraviolet colouration in butterflies. Nanostructural colour is a novel and interesting biological phenomenon that has potential application in textile and paint industries. This research has the potential to uncover knowledge relevant to future genetic manipulation and/or artificial synthesis of this trait for industry. Fundamental benefits will include a contribution to our understanding of evolution and biological diversity, enhancement of Australia's research profile, and the cultivation of new scientific expertise. This proposal also promises to benefit the Australian scientific community through the establishment of collaborative links with universities in the USA and UK, and to increase mainstream awareness of Australia's stunning natural resources.Read moreRead less
Identification of genetic polymorphisms of synaptically expressed genes that contribute to variation in normal brain function. This project focuses on understanding brain functions. Brain and mind disorders are by far the largest contributors to the burden of disability, far exceeding any other disorder. This research will contribute to knowledge through addressing the national research priority promoting and maintaining good health. The research outcomes will form the scientific knowledge base ....Identification of genetic polymorphisms of synaptically expressed genes that contribute to variation in normal brain function. This project focuses on understanding brain functions. Brain and mind disorders are by far the largest contributors to the burden of disability, far exceeding any other disorder. This research will contribute to knowledge through addressing the national research priority promoting and maintaining good health. The research outcomes will form the scientific knowledge base essential for the translation of the project into public benefit through their application in development of new testing paradigms for a range of brain and mind disorders. Read moreRead less
Integrating sexual selection and the allocation of sex in the zebra finch: back to the outback. The Australian zebra finch has become the primary avian model species in evolutionary biology studies in Europe and North America as the focus of classic laboratory-based studies of sexual selection, and sex allocation. Surprisingly, these studies have focused on populations of birds maintained in an unnatural environment and in captivity for decades that have been through tens of generations of artif ....Integrating sexual selection and the allocation of sex in the zebra finch: back to the outback. The Australian zebra finch has become the primary avian model species in evolutionary biology studies in Europe and North America as the focus of classic laboratory-based studies of sexual selection, and sex allocation. Surprisingly, these studies have focused on populations of birds maintained in an unnatural environment and in captivity for decades that have been through tens of generations of artificial selection, the effects of which are unknown - not a trivial issue for students of evolution. Using experimental manipulations I will study these high profile research areas in wild populations, focusing international attention on this internationally recognised Australian species and raising the profile of Australian research. Read moreRead less
Alternative life-history strategies in the evolution of colour polymorphism. Theoreticians have long recognised the value of colour polymorphic systems for providing a window into the evolution of genetic diversity, adaptations and even speciation. However, few species display appropriate discrete polymorphisms, and as such, there is little empirical evidence to support these ideas. Using a series of innovative experiments and a unique bird displaying three discrete head colours, I will test the ....Alternative life-history strategies in the evolution of colour polymorphism. Theoreticians have long recognised the value of colour polymorphic systems for providing a window into the evolution of genetic diversity, adaptations and even speciation. However, few species display appropriate discrete polymorphisms, and as such, there is little empirical evidence to support these ideas. Using a series of innovative experiments and a unique bird displaying three discrete head colours, I will test these theories, producing results which will have a major international impact. Understanding the interaction of environmental and genetic diversity in the highly endangered Gouldian finch also offers an opportunity to provide insight into how declining wild populations can be effectively managed.Read moreRead less
Intra-genomic conflict and the evolution of sexually selected traits. The dynamics of sexual selection may prevent the simultaneous optimization of traits shared by the sexes, or of different traits within each sex. This proposal focuses on the consequences of these conflicts for phenotypic and genomic evolution. First, I will compare selection acting on a sexually dimorphic trait in males and females. Second, I will use artificial selection to create a novel sexually dimorphic trait, and track ....Intra-genomic conflict and the evolution of sexually selected traits. The dynamics of sexual selection may prevent the simultaneous optimization of traits shared by the sexes, or of different traits within each sex. This proposal focuses on the consequences of these conflicts for phenotypic and genomic evolution. First, I will compare selection acting on a sexually dimorphic trait in males and females. Second, I will use artificial selection to create a novel sexually dimorphic trait, and track the evolutionary response. Third, I will investigate the link between two important fitness traits: body size and ageing rate. This work will enhance important on-going research in the laboratory of Robert Brooks (UNSW).Read moreRead less
Additive and non-additive genetic benefits of mating behaviour: a synthesis of sexual selection and conservation genetics. This research will forge a synthesis between the study of mating behaviour and it's consequences (sexual selection) and the field of conservation genetics. It will have direct relevance to conservation attempts, and far-reaching implications for how we understand sexual behaviour and the complex mating decisions animals and humans make. The work will enhance Australia's stro ....Additive and non-additive genetic benefits of mating behaviour: a synthesis of sexual selection and conservation genetics. This research will forge a synthesis between the study of mating behaviour and it's consequences (sexual selection) and the field of conservation genetics. It will have direct relevance to conservation attempts, and far-reaching implications for how we understand sexual behaviour and the complex mating decisions animals and humans make. The work will enhance Australia's strong research reputation in evolutionary genetics, sexual selection and conservation biology.Read moreRead less
Discovering genes which modify human physical performance: a means of developing healthier life styles & novel athletic training programs. The aim of this multicentred study (University of Sydney, Australian National University, Australian Institute of Sport) is to find genes in the cardiac and musculoskeletal systems that are involved in modifying human physical performance. From this knowledge, it is proposed to develop novel physical training programs in our national sporting institutions ba ....Discovering genes which modify human physical performance: a means of developing healthier life styles & novel athletic training programs. The aim of this multicentred study (University of Sydney, Australian National University, Australian Institute of Sport) is to find genes in the cardiac and musculoskeletal systems that are involved in modifying human physical performance. From this knowledge, it is proposed to develop novel physical training programs in our national sporting institutions based on an individual's genetic information. In the broader community, knowledge of genes which contribute to the normal and healthy functioning of the cardiac and musculoskeletal systems will be invaluable in understanding and preventing breakdowns in these body systems.Read moreRead less
How sexually antagonistic genes and sexual selection influence the evolution of the Y chromosome. Sexually antagonistic genes are beneficial to members of one sex, but costly to the other. They are of significance both to the coevolution between the sexes and the evolution of the sex chromosomes. We will measure the sexually antagonistic effects of genes that make male guppies sexually attractive. We will then study how these genes, and the process of sexual selection that favours them influence ....How sexually antagonistic genes and sexual selection influence the evolution of the Y chromosome. Sexually antagonistic genes are beneficial to members of one sex, but costly to the other. They are of significance both to the coevolution between the sexes and the evolution of the sex chromosomes. We will measure the sexually antagonistic effects of genes that make male guppies sexually attractive. We will then study how these genes, and the process of sexual selection that favours them influence the process of recombination between the X and Y chromosomes.Read moreRead less
Using cutting edge genomic tools to dissect the molecular control of hybrid vigour in cereals. Hybrid cereals grow in a wide range of environments, require less water and produce more grain from less land. This project will generate an enhanced capacity to rapidly develop new hybrid cereal varieties. The Australian community will benefit by having enhanced food security using less water and less land. The Australian community will also benefit because land and water will be released to the envir ....Using cutting edge genomic tools to dissect the molecular control of hybrid vigour in cereals. Hybrid cereals grow in a wide range of environments, require less water and produce more grain from less land. This project will generate an enhanced capacity to rapidly develop new hybrid cereal varieties. The Australian community will benefit by having enhanced food security using less water and less land. The Australian community will also benefit because land and water will be released to the environment, or to support other industries and their communities, or to grow other crops. The wide environmental adaptation of these hybrid cereals will allow the Australian community to respond flexibly to adverse climatic changes. Read moreRead less