A5034041960- Plant Pathogens and Fungal Diseases
- Genetic diversity and population structure
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Forest ecology and management
- Plant Diversity and Evolution
- Horticultural and Viticultural Research
- Forest Insect Ecology and Management
- Genomics and Phylogenetic Studies
- Species Distribution and Climate Change
- Yeasts and Rust Fungi Studies
- Bioenergy crop production and management
- Botany, Ecology, and Taxonomy Studies
- Agricultural pest management studies
- Genetically Modified Organisms Research
- Lignin and Wood Chemistry
- Wood Treatment and Properties
- Plant Reproductive Biology
- Plant Gene Expression Analysis
- Banana Cultivation and Research
- Genetic Mapping and Diversity in Plants and Animals
- Plant Physiology and Cultivation Studies
- Plant pathogens and resistance mechanisms
- Molecular Biology Techniques and Applications
- Genetic and phenotypic traits in livestock
University of Tasmania
2015-2024
Australian Research Council
2023-2024
ARC Centre for Forest Value
2023
Scion
2018
Forestry Tasmania
2005-2015
Université de Sherbrooke
2012
Commonwealth Scientific and Industrial Research Organisation
1998-2010
National Agricultural Technology Institute
2003
Parks and Wildlife Service
1999
Cornell University
1992
Eucalypts are the world's most widely planted hardwood trees. Their outstanding diversity, adaptability and growth have made them a global renewable resource of fibre energy. We sequenced assembled >94% 640-megabase genome Eucalyptus grandis. Of 36,376 predicted protein-coding genes, 34% occur in tandem duplications, largest proportion thus far plant genomes. also shows highest diversity genes for specialized metabolites such as terpenes that act chemical defence provide unique...
OPINION article Front. Ecol. Evol., 23 June 2015Sec. Interdisciplinary Climate Studies Volume 3 - 2015 | https://doi.org/10.3389/fevo.2015.00065
Abstract The status of genomics and genetics research in the Myrtaceae, a large family dicotyledonous woody plants, is reviewed with Eucalyptus as focal genus. contains over 5,650 species 130 to 150 genera, predominantly neo-tropical Southern Hemisphere distribution. Several genera are well known for their economic importance worldwide. Myrtaceae typically diploids small intermediate genome size. Microsatellites have been developed several while higher throughput marker systems such...
Abstract Background A number of molecular marker technologies have allowed important advances in the understanding genetics and evolution Eucalyptus , a genus that includes over 700 species, some which are used worldwide plantation forestry. Nevertheless, average density achieved with current remains at level few hundred markers per population. Furthermore, transferability produced most existing technology across species pedigrees is usually very limited. High throughput, combined wide...
Patterns of adaptive variation within plant species are best studied through common garden experiments, but these costly and time-consuming, especially for trees that have long generation times. We explored whether genome-wide scanning technology combined with outlier marker detection could be used to detect adaptation climate provide an alternative experiments. As a case study, we sampled nine provenances the widespread forest tree species, Eucalyptus tricarpa, across aridity gradient in...
Understanding the genetic impacts of forest management practices is crucial for conservation and resources. Forest based on selective clear cut systems followed by natural or artificial regeneration can impact population structure mating patterns, thus gene flow diversity. Survival productivity both tree non-tree species be compromised or, possibly, enhanced. The extent depend system applied, stand as well species' distribution, demography, biological attributes ecology. reviewed synthesized...
Abstract Widespread species often occur across a range of climatic conditions, through combination local genetic adaptations and phenotypic plasticity. Species with greater plasticity are likely to be better positioned cope rapid anthropogenic climate changes, while those displaying strong might benefit from translocations assist the movement adaptive genes as changes. E ucalyptus tricarpa occurs gradient in south‐eastern A ustralia, region increasing aridity, we hypothesized that this would...
The contamination of native-eucalypt gene pools via exotic pollen is concern as (i) dispersal believed to be much more widespread than seed dispersal, (ii) reproductive barriers are often weak between closely related species, (iii) European settlement has already had a major impact on Australia's eucalypt woodlands and mallee, (iv) there been rapid expansion plantations restoration plantings in Australia (v) the custodian an internationally important genetic resource. Pollen flow plantation...
The biogeographic pattern of chloroplast DNA (cpDNA) haplotypes in Eucalyptus on the island Tasmania is consistent with reticulate evolution, involving at least 12 Tasmanian species from subgenus Symphyomyrtus. Intraspecific cpDNA polymorphism 14 17 coupled extensive sharing identical across populations different same geographic area. Haplotype diversity lowest central regions formerly occupied by alpine vegetation during glacial intervals and northern that were periodically linked to...
Tasmania is a natural laboratory for investigating the evolutionary processes of Quaternary. It large island lying 40–44° S, which was repeatedly glaciated and linked to southeastern continental Australia during Climate change promoted both isolation species in glacial refugia, an exchange between Tasmanian mainland floras. Eucalyptus complex diverse genus, has increased abundance over past 100 kyr, probably response higher fire frequency. Morphological evidence suggests that gene flow may...
This expanded survey of ITS sequences represents the largest analysis molecular data ever attempted on Eucalyptus. Sequences internal transcribed spacer (ITS) region nuclear ribosomal DNA were included in an 90 species Eucalyptus s.s. and 28 representing eight other genera (Allosyncarpia, Angophora, Arillastrum, Corymbia, Eucalyptopsis, Stockwellia, Lophostemon Metrosideros). The results study indicate that Angophora Corymbia form a well-supported clade is highly differentiated from are...
Resistance to soil waterlogging stress is an important plant breeding objective in high rainfall or poorly drained areas across many countries the world. The present study was conducted identify quantitative trait loci (QTLs) associated with tolerance (e.g. leaf chlorosis, survival and biomass reduction) barley compare QTLs identified two seasons different populations using a composite map constructed SSRs, RFLP Diversity Array Technology (DArT) markers.Twenty for related traits were found...
• Three small populations of a dwarf ecotype the forest tree Eucalyptus globulus are found on exposed granite headlands in south-eastern Australia. These separated by at least 100 km. Here, we used 12 nuclear microsatellites and chloroplast DNA marker to investigate genetic affinities one another their nearest tall E. globulus. Cape Tourville was studied greater detail assess processes enabling maintenance distinct ecotypes close geographical proximity. The three were not related more...
Despite the ecological and economic importance of lignin other wood chemical components, there are few studies natural genetic variation that exists within plant species its adaptive significance. We used models developed from near infra-red spectroscopy to study in content monomer composition (syringyl-to-guaiacyl ratio [S/G]) as well cellulose extractives content, using a 16-year-old field trial an Australian tree species, Eucalyptus globulus. sampled 2163 progenies 467 native trees...
An Escherichia spp. isolate, ECD-227, was previously identified from the broiler chicken as a phylogenetically divergent and multidrug-resistant coli possessing numerous virulence genes. In this study, whole genome sequencing comparative analysis used to further characterize isolate. The presence of known putative antibiotic resistance open reading frames were determined by comparison pathogenic (E. O157:H7 TW14359, APEC O1:K1:H7, UPEC UTI89) nonpathogenic species K-12 MG1655 fergusonii ATCC...
While habitat fragmentation is a central issue in forest conservation studies the face of broad-scale anthropogenic changes to environment, its effects on contemporary mating patterns remain controversial. This partly because inherent variation which may exist within species and fact that few have replication at landscape level. To study effect patterns, including effective pollen dispersal, we compared four native populations Australian tree, Eucalyptus globulus. We used six microsatellite...
Diversity Arrays Technology (DArT) provides a robust, high throughput, cost-effective method to query thousands of sequence polymorphisms in single assay. Despite the extensive use this genotyping platform for numerous plant species, little is known regarding attributes and genome-wide distribution DArT markers. We investigated genomic properties 7,680 marker probes Eucalyptus array, by sequencing them, constructing density linkage map carrying out detailed physical mapping analyses grandis...
Glacial aridity of the Pleistocene was inhospitable for cool temperate rainforest tree Nothofagus cunninghamii over most its current range in southeastern Australia, particularly eastern Tasmania. A chloroplast DNA phylogeographic study undertaken to investigate whether this species likely have survived situ or conforms a dispersal model postglacial recovery. Twenty-three haplotypes were identified by PCR-RFLP and direct sequencing 2164 base pairs from 213 N. individuals collected range-wide...
Summary Eucalypts are one of the most planted tree genera worldwide, and there is increasing interest in marker‐assisted selection for improvement. Implementation requires a knowledge stability quantitative trait loci ( QTL s). This study aims to investigate s wood properties growth across contrasting sites multiple pedigrees E ucalyptus globulus . Saturated linkage maps were constructed using 663 genotypes from four separate families, grown at three widely separated sites, employed...
We assess phylogenetic patterns of hybridization in the speciose, ecologically and economically important genus Eucalyptus, order to better understand evolution reproductive isolation. Eucalyptus globulus pollen was applied 99 eucalypt species, mainly from large commercially subgenus, Symphyomyrtus. In 64 species that produce seeds, hybrid compatibility assessed at two stages, hybrid-production (at approximately 1 month) hybrid-survival 9 months), compared with phylogenies based on 8,350...