Evolution of the dermomyotome in vertebrates. The project seeks to understand how different muscle populations within the embryo form and have evolved within the vertebrate phylogeny. All amniote muscles, except that of the head, derive from a transient embryonic structure termed the dermomyotome. The formation of muscle from the dermomyotome of amniotes uses a highly conserved mechanism that is distinct from that deployed by bony fish and amphibians. How the dermomyotome evolved to generate th ....Evolution of the dermomyotome in vertebrates. The project seeks to understand how different muscle populations within the embryo form and have evolved within the vertebrate phylogeny. All amniote muscles, except that of the head, derive from a transient embryonic structure termed the dermomyotome. The formation of muscle from the dermomyotome of amniotes uses a highly conserved mechanism that is distinct from that deployed by bony fish and amphibians. How the dermomyotome evolved to generate the distinct types of locomotor systems we see deployed throughout the vertebrate phylogeny remains unresolved. This project aims to contribute to an understanding of how different locomotor strategies deployed at important evolutionary transitions were generated.Read moreRead less
How limbs evolved from fins: the role of somite cells. This project aims to investigate the developmental basis of vertebrate appendage diversity and how during evolution limbs became fins. The project expects to determine how specific populations of cells that regulate fin formation arise during development, the genetic basis of their function, and how their role in development has evolved in lineages with divergent appendage anatomy. Expected outcomes include understanding the molecular basis ....How limbs evolved from fins: the role of somite cells. This project aims to investigate the developmental basis of vertebrate appendage diversity and how during evolution limbs became fins. The project expects to determine how specific populations of cells that regulate fin formation arise during development, the genetic basis of their function, and how their role in development has evolved in lineages with divergent appendage anatomy. Expected outcomes include understanding the molecular basis of the fin-limb transition and the origin of divergent appendage patterning systems. This should provide significant benefits by advancing our knowledge of the relationship between evolution and development, and understanding limb defects, which are amongst the most common of human congenital malformations.Read moreRead less
Fins to Limbs: Investigating the Evolution of complex Limb Musculature. This application aims to investigates the basis of the fin-to-limb transition, an event that set the stage for the entire tetrapod radiation. This project expects to generate new knowledge concerning the natural history of vertebrates using a multidisciplinary approach that combines paleontology and embryology of unique Australian fauna. While the skeletal changes associated with the move from water to land have been investi ....Fins to Limbs: Investigating the Evolution of complex Limb Musculature. This application aims to investigates the basis of the fin-to-limb transition, an event that set the stage for the entire tetrapod radiation. This project expects to generate new knowledge concerning the natural history of vertebrates using a multidisciplinary approach that combines paleontology and embryology of unique Australian fauna. While the skeletal changes associated with the move from water to land have been investigated, little is known about the origin of tetrapod limb muscles. This proposal has as an expected outcome, a determination of how limb muscles arose during evolution. This knowledge should provide significant benefits by transforming our understanding of the origins of the tetrapod body plan and our own natural history.Read moreRead less
Evolutionary venomics: Venom system diversification in the animal kingdom. This proposal represents a tremendous opportunity for biodiscovery from the Australian toxic fauna. This will be achieved through the researcher's unique approach of investigating previously unmapped venom systems for divergent, bioactive proteins. An understanding of venomous animal protein evolution has practical implications for the treatment of envenomations - an enormous problem in Australia - as well as great pot ....Evolutionary venomics: Venom system diversification in the animal kingdom. This proposal represents a tremendous opportunity for biodiscovery from the Australian toxic fauna. This will be achieved through the researcher's unique approach of investigating previously unmapped venom systems for divergent, bioactive proteins. An understanding of venomous animal protein evolution has practical implications for the treatment of envenomations - an enormous problem in Australia - as well as great potential in drug discovery and other commercial applications. This project will provide Australian graduate and post-graduate students with finely tuned skills in cutting edge methodological techniques and a fluent understanding of molecular evolution, preparing them to be internationally competitive scientists.Read moreRead less
Convergent Evolution of Desert Lizards: Phylogenomic and Morphological Analyses of Limb Development. Evolutionary convergence, where similar traits evolve independently in multiple lineages, is a fundamental biological process, which affects many aspects of an organism's morphology. Despite its importance we don't understand what underlies the convergence we observe in nature - does convergence in genetic make-up underlie convergence in morphology? We will investigate whether similar hindlimb mo ....Convergent Evolution of Desert Lizards: Phylogenomic and Morphological Analyses of Limb Development. Evolutionary convergence, where similar traits evolve independently in multiple lineages, is a fundamental biological process, which affects many aspects of an organism's morphology. Despite its importance we don't understand what underlies the convergence we observe in nature - does convergence in genetic make-up underlie convergence in morphology? We will investigate whether similar hindlimb morphologies are determined by the same genetic mechanisms in iguanian lizards of Australia and North America. Our study will be the first of its kind in vertebrates and will provide significant information about the evolutionary link between an animal's morphology and its genetic make-up.Read moreRead less
Understanding the evolution of the alternation of generations in the land plant life cycle. This project will investigate the genetic basis and evolution of the land plant life cycle, in which both haploid and diploid phases consist of complex multicellular bodies. The project's findings, which will be made using two model laboratory plants, will be applicable to all plants and will help understand important processes such as pollen and seed production.
Molecular mechanisms that generate muscle cell type diversity. The general aim of this project is to exploit the advantages of the zebrafish system and our access to the embryology of Australian shark species to generate an understanding of the basis for muscle fibre diversity and evolution. While there is some understanding of the fundamental genetic basis of how to make an individual muscle cell from a nascent myoblast there is far less knowledge on how individual muscle cells generate mature ....Molecular mechanisms that generate muscle cell type diversity. The general aim of this project is to exploit the advantages of the zebrafish system and our access to the embryology of Australian shark species to generate an understanding of the basis for muscle fibre diversity and evolution. While there is some understanding of the fundamental genetic basis of how to make an individual muscle cell from a nascent myoblast there is far less knowledge on how individual muscle cells generate mature muscle types and patterns. The intended outcome of this research is to generate understanding of the complex molecular basis of muscle patterning in the simple paradigm of the zebrafish myotome that could be applied across the vertebrate phylogeny.Read moreRead less
Development and evolution of land plant shoots. How do plants grow and develop their wonderful diversity of forms, from cereal crops to eucalypt forests? The project aims to understand basic mechanisms of plant development via comparative studies using the model angiosperm, Arabidopsis, and the liverwort, Marchantia, which possesses a simplified genome. Comparative studies of the genetic basis of the body plan, branching, and hormonal action could unlock their evolutionary elaboration from the s ....Development and evolution of land plant shoots. How do plants grow and develop their wonderful diversity of forms, from cereal crops to eucalypt forests? The project aims to understand basic mechanisms of plant development via comparative studies using the model angiosperm, Arabidopsis, and the liverwort, Marchantia, which possesses a simplified genome. Comparative studies of the genetic basis of the body plan, branching, and hormonal action could unlock their evolutionary elaboration from the simpler liverworts to more complex flowering plants. The project may generate new understanding of the principles of how genes and hormones control the architecture of plant shoot systems, and support the targeted selection of new agricultural plants.Read moreRead less
The molecular evolution of wings in flightless birds. The flightless Australian emu and New Zealand kiwi have small wings, while the extinct moa had none at all. This project will identify the genetic changes that have lead to wing reduction and loss in flightless birds. The results will shed light on the genetic control of forelimb development and how it has evolved.
Dissecting insect gut function to understand insecticide detoxification. Massive quantities of chemical insecticides are used daily to control the insect pests that threaten agriculture, human health and the welfare of domestic pets. Insects readily evolve resistance to these chemicals reducing the effectiveness of pest control, increasing the amount of chemical used and increasing costs to consumers. This project examines the way in which insects adapt to the extreme stress imposed on them by ....Dissecting insect gut function to understand insecticide detoxification. Massive quantities of chemical insecticides are used daily to control the insect pests that threaten agriculture, human health and the welfare of domestic pets. Insects readily evolve resistance to these chemicals reducing the effectiveness of pest control, increasing the amount of chemical used and increasing costs to consumers. This project examines the way in which insects adapt to the extreme stress imposed on them by chemical insecticides. A thorough understanding of this adaptation process is required before insecticide resistance can be effectively managed or prevented. Read moreRead less