A5031203900- Plant and animal studies
- Plant Diversity and Evolution
- Plant and Fungal Species Descriptions
- Genomics and Phylogenetic Studies
- Photosynthetic Processes and Mechanisms
- Genetic diversity and population structure
- Plant and Biological Electrophysiology Studies
- Plant Reproductive Biology
- Ecology and Vegetation Dynamics Studies
- Plant Pathogens and Fungal Diseases
- Species Distribution and Climate Change
- Plant Pathogens and Resistance
- Plant Molecular Biology Research
- Identification and Quantification in Food
- Invertebrate Taxonomy and Ecology
- Ecology, Conservation, and Geographical Studies
- Yeasts and Rust Fungi Studies
- Chromosomal and Genetic Variations
- Environmental and Cultural Studies in Latin America and Beyond
- Fern and Epiphyte Biology
- Fire effects on ecosystems
James Cook University
2017-2024
Commonwealth Scientific and Industrial Research Organisation
2018-2024
Australian Institute of Tropical Health and Medicine
2017-2024
ACT Government
2021-2024
Centre for Australian National Biodiversity Research
2024
Health Sciences and Nutrition
2020-2021
Australian National Herbarium
2021
Australian National Wildlife Collection
2018
Abstract Australia’s 2019–2020 ‘Black Summer’ bushfires burnt more than 8 million hectares of vegetation across the south-east continent, an event unprecedented in last 200 years. Here we report impacts these fires on vascular plant species and communities. Using a map generated from remotely sensed hotspot data show that, 11 Australian bioregions, 17 major native groups were severely burnt, up to 67–83% globally significant rainforests eucalypt forests woodlands. Based geocoded occurrence...
Orchids constitute one of the most spectacular radiations flowering plants. However, their origin, spread across globe, and hotspots speciation remain uncertain due to lack an up-to-date phylogeographic analysis. We present a new Orchidaceae phylogeny based on combined high-throughput Sanger sequencing data, covering all five subfamilies, 17/22 tribes, 40/49 subtribes, 285/736 genera, c. 7% (1921) 29 524 accepted species, use it infer geographic range evolution, diversity, patterns by adding...
Sapindales is an angiosperm order of high economic and ecological value comprising nine families, c. 479 genera, 6570 species. However, family subfamily relationships in remain unclear, making reconstruction the order's spatio-temporal morphological evolution difficult. In this study, we used Angiosperms353 target capture data to generate most densely sampled phylogenetic trees date, with 448 samples 85% genera represented. The percentage paralogous loci allele divergence was characterized...
PREMISE The inference of evolutionary relationships in the species‐rich family Orchidaceae has hitherto relied heavily on plastid DNA sequences and limited taxon sampling. Previous studies have provided a robust phylogenetic framework, which was used to classify orchids investigate drivers orchid diversification. However, extent based genome is congruent with nuclear been only poorly assessed. METHODS We inferred higher‐level likelihood ASTRAL analyses 294 low‐copy genes sequenced using...
PREMISE Hybrids contain divergent alleles that can confound phylogenetic analyses but provide insights into reticulated evolution when identified and phased. We developed a workflow to detect hybrids in target capture data sets phase reads parental lineages using similarity framework. METHODS used Angiosperms353 for Nepenthes , including known test the novel workflow. Reference mapping was assess heterozygous sites across set hybrid accessions paralogous genes. Hybrid samples were phased by...
Summary ⍰ Orchids constitute one of the most spectacular radiations flowering plants. However, their geographical origin, historical spread across globe, and hotspots speciation remain uncertain due to lack a broad phylogenomic framework. We present new Orchidaceae phylogeny based on high-throughput Sanger sequencing datasets, covering all five subfamilies, 17/22 tribes, 40/49 subtribes, 285/736 genera, ∼7% (1,921) currently 29,524 accepted species. then use it infer geographic range...
Nepenthes is a genus of carnivorous plants consisting ~160 species that are distributed in the paleotropics. Molecular systematics has so far not been able to resolve evolutionary relationships most because limited genetic divergence previous studies. In present study, we used genome-skimming approach infer phylogenetic on basis 81 plastid genes and highly repetitive rRNA (external transcribed spacer (ETS)–26S) for 39 accessions representing 34 from eight sections. Maximum-likelihood...
The hyperdiverse orchid genus Bulbophyllum is the second largest of flowering plants and exhibits a pantropical distribution with center diversity in tropical Asia. only section Australasia sect. Adelopetalum . However, phylogenetic placement, interspecific relationships, spatio-temporal evolution this remain largely unclear. To infer broad-level relationships within , genome skimming dataset was generated for 89 samples, which yielded 70 plastid coding regions nuclear ribosomal DNA cistron....
The generation and analysis of genome-scale data—genomics—is driving a rapid increase in plant biodiversity knowledge. However, the speed complexity technological advance genomics presents challenges for its widescale use evolutionary conservation biology. Here, we introduce describe national-scale collaboration conceived to build genomic resources capability understanding Australian flora: Genomics Plants (GAP) Framework Initiative. We outline (a) history project including collaborative...
Australia harbours a rich and highly endemic orchid flora with over 90% of native species found nowhere else. However, little is known about the assembly evolution Australia's flora. Here, we used phylogenomic approach to infer evolutionary relationships, divergence times range in Pterostylidinae (Orchidoideae), second largest subtribe Australian flora, comprising genera Pterostylis Achlydosa. Phylogenetic analysis 75 plastid genes provided well-resolved supported phylogenies. Intrageneric...
Abstract The orchid genus Dipodium R.Br. (Epidendroideae) comprises leafy autotrophic and leafless mycoheterotrophic species, the latter confined to sect. . This study examined plastome degeneration in a phylogenomic temporal context. Whole plastomes were reconstructed annotated for 24 samples representing 14 species two putatively new encompassing over 80% of diversity Phylogenomic analysis based on 68 plastid loci including broad outgroup sampling across Orchidaceae found Leopardanthus as...
Phylogenetic relationships in Calochilus (~30 species) were inferred based on a supermatrix of 81 loci including 22 species. To examine the spatio-temporal evolution Calochilus, divergence-time estimations conducted within Bayesian framework using an uncorrelated relaxed molecular-clock model, followed by maximum-likelihood ancestral-range reconstructions comparing four biogeographic models. trace key floral and vegetative characters, ancestral-character carried out. The stem age was dated...
Abstract Premise of the study Hybrids contain divergent alleles that can confound phylogenetic analyses but provide insights into reticulated evolution when identified and phased. We developed a workflow to detect hybrids in target capture datasets phase reads parental lineages using similarity framework. Methods used Angiosperms353 data for Nepenthes including known test novel workflow. Reference mapping was assess heterozygous sites across dataset, hybrid accessions paralogous genes....
Abstract The hyper diverse orchid genus Bulbophyllum is the second largest of flowering plants and exhibits a pantropical distribution with center diversity in tropical Asia. only section Australasia sect. Adelopetalum . However, phylogenetic placement, interspecific relationships, spatio-temporal evolution have remained largely unclear. To infer broad-level relationships within , genome skimming dataset was generated for 89 samples, yielding 70 plastid coding regions nuclear ribosomal DNA...
The orchid genus
ABSTRACT Premise of the study Evolutionary relationships in species-rich Orchidaceae have historically relied on organellar DNA sequences and limited taxon sampling. Previous studies provided a robust plastid-maternal phylogenetic framework, from which multiple hypotheses drivers orchid diversification been derived. However, extent to maternal evolutionary history orchids is congruent with that nuclear genome has remained uninvestigated. Methods We inferred 294 low-copy genes...
Abstract Australia harbours a rich and highly endemic orchid flora with over 90% of native species found nowhere else. However, little is known about the assembly evolution Australia’s flora. Here, we used phylogenomic approach to infer evolutionary relationships, divergence times, range in Pterostylidinae (Orchidoideae), second largest subtribe Australian flora, comprising genera Pterostylis Achlydosa . Phylogenetic analysis 75 plastid genes provided well-resolved supported phylogenies....
Epiphytic orchids rely on the habitat provided by their plant hosts to survive. The naturalisation of Austropuccinia psidii (G. Winter) Beenken (the causal agent for myrtle rust) in Australia means that some these hosts, from family Myrtaceae, are at risk serious decline. We aimed identify orchid species associate with myrtaceous host plants and determine which, if any, might be susceptible loss as a result rust. reviewed descriptions herbarium records identified 73 epiphytic commonly found...
Australien Orchideen haben sich an extreme Umweltbedingungen angepasst. Viele Arten sind selbst gegen regelmäßige Buschfeuer gewappnet. Veränderungen im Feuerregime, die Einschleppung fremder Arten, Beweidung und Habitatveränderungen setzen australische Flora jedoch zunehmend unter Druck.