Quantitative genetic control of economic traits in Eucalyptus globulus. Eucalyptus globulus is the most important plantation eucalypt in Australia and a model for tree genetic research. The project aims to study the quantitative genetic architecture of this species, focusing on traits of economic significance, and provide new insights into: the relative importance of non-additive genetic effects, including maternal and reciprocal effects; the importance of indirect genetic effects, particularly ....Quantitative genetic control of economic traits in Eucalyptus globulus. Eucalyptus globulus is the most important plantation eucalypt in Australia and a model for tree genetic research. The project aims to study the quantitative genetic architecture of this species, focusing on traits of economic significance, and provide new insights into: the relative importance of non-additive genetic effects, including maternal and reciprocal effects; the importance of indirect genetic effects, particularly on the competitive interactions amongst trees; and the genetics of traits impacting the production of emerging plantation products such as veneer. This information is needed to improve genetic evaluation models and to better target germplasm to environments and products.Read moreRead less
Breeding for resistance: Diagnostic toolkit for predicting variation in plant defence compounds in Eucalyptus. Pulp and timber from plantations are important for Australia's economic and environmental future. However, we must ensure that these plantations are grown sustainably. One area of concern is the current reliance on pesticides to control herbivores of plantation eucalypts. The work proposed here aims to use existing ecological findings together with early access to the genome of Eucal ....Breeding for resistance: Diagnostic toolkit for predicting variation in plant defence compounds in Eucalyptus. Pulp and timber from plantations are important for Australia's economic and environmental future. However, we must ensure that these plantations are grown sustainably. One area of concern is the current reliance on pesticides to control herbivores of plantation eucalypts. The work proposed here aims to use existing ecological findings together with early access to the genome of Eucalyptus to develop ways of using the natural resistance of Eucalyptus as an alternative to chemical pesticides. The work will also help us to understand how eucalypts produce the distinctive odours that are so characteristic of Australian landscapes.Read moreRead less
Linking plant genetics and chemistry to maximise tree production in the softwood industry. This project aims to test a ‘gene to plantation’ approach for the management of pests in softwood forestry. The project aims to focus on the stripping of bark from Pinus radiata trees by mammals: a major threat to tree productivity in many regions of Australia and an economic burden for forestry companies. The project aims to use a wide complement of P. radiata germplasm to link genetics, bark defensive ch ....Linking plant genetics and chemistry to maximise tree production in the softwood industry. This project aims to test a ‘gene to plantation’ approach for the management of pests in softwood forestry. The project aims to focus on the stripping of bark from Pinus radiata trees by mammals: a major threat to tree productivity in many regions of Australia and an economic burden for forestry companies. The project aims to use a wide complement of P. radiata germplasm to link genetics, bark defensive chemistry and susceptibility to damage. It aims to identify genotypes with increased resistance, unravel defensive tree traits, screen for genetic markers and identify specific gene regions correlated with trait variation, and examine cross-correlations with other major tree productivity traits.Read moreRead less
Understanding, controlling and improving the flavour of almond kernels. Almond kernels may be sweet, semi-bitter or bitter, with the first two categories marketed as fresh nuts, while the latter are used in processed products such as marzipan. Semi-bitter kernels have a more interesting flavour than sweet kernels and we require tools to breed for this character. The bitter flavour is imparted by amygdalin via the cyanogenic pathway. This project will characterise the genetic control of sweet, ....Understanding, controlling and improving the flavour of almond kernels. Almond kernels may be sweet, semi-bitter or bitter, with the first two categories marketed as fresh nuts, while the latter are used in processed products such as marzipan. Semi-bitter kernels have a more interesting flavour than sweet kernels and we require tools to breed for this character. The bitter flavour is imparted by amygdalin via the cyanogenic pathway. This project will characterise the genetic control of sweet, semi-bitter and bitter flavour, amygdalin accumulation in developing kernels, and key enzymes in the cyanogenic pathway. Almond populations segregating for these traits will be used and the data will be integrated into the Australian almond meiotic map.Read moreRead less
Investigation of almond transformation for self-fertility and virus resistance. This project addresses the long-term goal of the Australian almond industry to produce cultivars that are self-fertile and resistant to Prunus necrotic ringspot and prune dwarf viruses. Both self-sterility and virus infection can result in unreliable and often low yields. Research will address the control of gene expression relating to self-sterility and the introduction of virus resistance, via sequencing of self- ....Investigation of almond transformation for self-fertility and virus resistance. This project addresses the long-term goal of the Australian almond industry to produce cultivars that are self-fertile and resistant to Prunus necrotic ringspot and prune dwarf viruses. Both self-sterility and virus infection can result in unreliable and often low yields. Research will address the control of gene expression relating to self-sterility and the introduction of virus resistance, via sequencing of self-fertility and self-sterility genes, construct development and improved regeneration of transformed almond in vitro without the use of antibiotics.Read moreRead less
Quantitative genetics of Eucalyptus globulus. Eucalypt plantations in Australia have expanded rapidly over the last decade. With increasing market competition from overseas plantations for both pulp and solid wood products, Australia must maintain a competitive edge through efficiencies in production and product quality. Breeding and deployment of genetically superior planting stock is part of the solution. With global climate chance and requirements for re-afforestation in drier zones, there ....Quantitative genetics of Eucalyptus globulus. Eucalypt plantations in Australia have expanded rapidly over the last decade. With increasing market competition from overseas plantations for both pulp and solid wood products, Australia must maintain a competitive edge through efficiencies in production and product quality. Breeding and deployment of genetically superior planting stock is part of the solution. With global climate chance and requirements for re-afforestation in drier zones, there is an increasing requirement to genetically improve drought tolerance. This project will provide genetic information and strategies to back Eucalyptus globulus breeding and deployment programs for traditional as well as drier environments. Read moreRead less
Pest Status and Management of a Creiss psyllid in Eucalyptus plantations. Research studies are required on the ecology and epidemiology of a Creiis psyllid, recently found causing significant damage in young Eucalyptus dunnii plantations. The susceptibility to psyllid damage to a range of selected clonal types will be examined. With increasing community concerns associated with insecticide usage and to reduce costs, exploitation of natural resistance is an avenue that counters economic threat f ....Pest Status and Management of a Creiss psyllid in Eucalyptus plantations. Research studies are required on the ecology and epidemiology of a Creiis psyllid, recently found causing significant damage in young Eucalyptus dunnii plantations. The susceptibility to psyllid damage to a range of selected clonal types will be examined. With increasing community concerns associated with insecticide usage and to reduce costs, exploitation of natural resistance is an avenue that counters economic threat from herbivorous insects. Since Australia is currently planting 100,000 ha of eucalypts per year results from this project are essential to build better management strategies for reduce the impact of this and all pests on tree survival and growth.Read moreRead less
Maximising the essential oil yield of blue mallee plantations. Felton, Grimwade and Bickford Pty Ltd will collaborate with us to develop plant material and methods for establishing profitable plantations of blue mallee (Eucalyptus polybractea) for eucalyptus oil production. This is important because, as a result of recent legislation, the forest patches currently used in oil production will soon be unavailable to the company. We will also investigate the physiological and biochemical mechanism ....Maximising the essential oil yield of blue mallee plantations. Felton, Grimwade and Bickford Pty Ltd will collaborate with us to develop plant material and methods for establishing profitable plantations of blue mallee (Eucalyptus polybractea) for eucalyptus oil production. This is important because, as a result of recent legislation, the forest patches currently used in oil production will soon be unavailable to the company. We will also investigate the physiological and biochemical mechanisms underlying oil quality and quantity in blue mallee. This knowledge will assist the industry in the longer term by allowing them to improve and modify their products in response to changes in market demands.Read moreRead less
Enhancing the essential oil yield of clonal blue mallee plantations. Production of high quality eucalyptus oil in Victoria involves sustainable harvesting of foliage from public land. A recent review of land use by the Victorian Government has required that, over the next few years, oil producers move their harvesting operations into plantations on private land. This project will assist producers by developing methods for establishing plantations of eucalypts (blue mallee) with very high and e ....Enhancing the essential oil yield of clonal blue mallee plantations. Production of high quality eucalyptus oil in Victoria involves sustainable harvesting of foliage from public land. A recent review of land use by the Victorian Government has required that, over the next few years, oil producers move their harvesting operations into plantations on private land. This project will assist producers by developing methods for establishing plantations of eucalypts (blue mallee) with very high and economically viable yields of eucalyptus oil. This research will help restore Victoria's position as one of the major producers of high quality eucalyptus oil. Read moreRead less
Environmental and genetic control over blackwood (Acacia melanoxylon) timber colour, density, and recovery. The project will investigate the roles of environment and genetics in the expression of wood characteristics in blackwood. It will determine the potential heritability of valuable blackwood wood traits and provide a sound understanding of the basis of colour expression. Heartwood characteristics, particularly colour, density, ring width and knottiness determine the commercial value of blac ....Environmental and genetic control over blackwood (Acacia melanoxylon) timber colour, density, and recovery. The project will investigate the roles of environment and genetics in the expression of wood characteristics in blackwood. It will determine the potential heritability of valuable blackwood wood traits and provide a sound understanding of the basis of colour expression. Heartwood characteristics, particularly colour, density, ring width and knottiness determine the commercial value of blackwood. The limited research on these characteristics, all undertaken outside Australia, points to combined genetic and environmental control. By understanding the relative importance that environmental conditions and genetic material have in producing desirable wood traits, growers will be better able to realise the full commercial value of blackwood.Read moreRead less