40 Result(s)
within
Alexander A. Myburg
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Article
Functional investigation of five R2R3-MYB transcription factors associated with wood development in Eucalyptus using DAP-seq-ML
A multi-tiered transcriptional network regulates xylem differentiation and secondary cell wall (SCW) formation in plants, with evidence of both conserved and lineage-specific SCW network architecture. We aimed...
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Genetic diversity and population structure analysis reveals the unique genetic composition of South African selected macadamia accessions
Macadamia nuts are known globally for their high quality and economic value. Global macadamia commercial nut production amounts to 60,000 metric tonnes and is increasing steadily. South Africa is the leading p...
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Article
Open AccessqtlXplorer: an online systems genetics browser in the Eucalyptus Genome Integrative Explorer (EucGenIE)
Affordable high-throughput DNA and RNA sequencing technologies are allowing genomic analysis of plant and animal populations and as a result empowering new systems genetics approaches to study complex traits. ...
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Article
Expected benefits of genomic selection for growth and wood quality traits in Eucalyptus grandis
Genomic selection (GS) can substantially reduce breeding cycle times in forest trees compared to traditional breeding cycles. Practical implementation of GS in tree breeding requires an assessment of significa...
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Article
Open AccessThe plastid and mitochondrial genomes of Eucalyptus grandis
Land plant organellar genomes have significant impact on metabolism and adaptation, and as such, accurate assembly and annotation of plant organellar genomes is an important tool in understanding the evolution...
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Article
Open AccessDefence transcriptome assembly and pathogenesis related gene family analysis in Pinus tecunumanii (low elevation)
Fusarium circinatum is a pressing threat to the cultivation of many economically important pine tree species. Efforts to develop effective disease management strategies can be aided by investigating the molecular...
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Article
Carbohydrate active enzyme domains from extreme thermophiles: components of a modular toolbox for lignocellulose degradation
Lignocellulosic biomass is a promising feedstock for the manufacture of biodegradable and renewable bioproducts. However, the complex lignocellulosic polymeric structure of woody tissue is difficult to access ...
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Article
Open AccessIn planta expression of hyperthermophilic enzymes as a strategy for accelerated lignocellulosic digestion
Conversion of lignocellulosic biomass to biofuels and biomaterials suffers from high production costs associated with biomass pretreatment and enzymatic hydrolysis. In-planta expression of lignocellulose-digestin...
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Open AccessIntegrated analysis and transcript abundance modelling of H3K4me3 and H3K27me3 in develo** secondary xylem
Despite the considerable contribution of xylem development (xylogenesis) to plant biomass accumulation, its epigenetic regulation is poorly understood. Furthermore, the relative contributions of histone modifi...
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Article
Open AccessEvidence for salicylic acid signalling and histological changes in the defence response of Eucalyptus grandis to Chrysoporthe austroafricana
Eucalyptus species are cultivated for forestry and are of economic importance. The fungal stem canker pathogen Chrysoporthe austroafricana causes disease of varying severity on E. grandis. The Eucalyptus grandis-...
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Article
Open AccessCombined de novo and genome guided assembly and annotation of the Pinus patula juvenile shoot transcriptome
Pines are the most important tree species to the international forestry industry, covering 42 % of the global industrial forest plantation area. One of the most pressing threats to cultivation of some pine spe...
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Article
Open AccessThe Eucalyptus terpene synthase gene family
Terpenoids are abundant in the foliage of Eucalyptus, providing the characteristic smell as well as being valuable economically and influencing ecological interactions. Quantitative and qualitative inter- and int...
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Article
Open AccessComparative analysis of plant carbohydrate active enZymes and their role in xylogenesis
Carbohydrate metabolism is a key feature of vascular plant architecture, and is of particular importance in large woody species, where lignocellulosic biomass is responsible for bearing the bulk of the stem an...
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Article
Open AccessGenome-wide map** of histone H3 lysine 4 trimethylation in Eucalyptus grandis develo** xylem
Histone modifications play an integral role in plant development, but have been poorly studied in woody plants. Investigating chromatin organization in wood-forming tissue and its role in regulating gene expre...
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Article
Open AccessTranscriptome and hormone profiling reveals Eucalyptus grandis defence responses against Chrysoporthe austroafricana
Eucalyptus species and interspecific hybrids exhibit valuable growth and wood properties that make them a highly desirable commodity. However, these trees are challenged by a wide array of biot...
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Article
Open AccessThe genome of Eucalyptus grandis
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 and energy. We sequenced and assembled >94...
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Article
Open AccessMap** QTL conferring resistance in maize to gray leaf spot disease caused by Cercospora zeina
Gray leaf spot (GLS) is a globally important foliar disease of maize. Cercospora zeina, one of the two fungal species that cause the disease, is prevalent in southern Africa, China, Brazil and the eastern corn be...
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Article
Diversity and cis-element architecture of the promoter regions of cellulose synthase genes in Eucalyptus
Lignocellulosic biomass from fast-growing plantation trees is composed of carbohydrate-rich materials deposited into plant cell walls in a coordinated manner during wood formation. The diversity and evolution ...
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Article
Transmission ratio distortion in an interspecific cross between Fusarium circinatum and Fusarium subglutinans
Previously, an interspecific cross between Fusarium circinatum and Fusarium subglutinans was used to generate a genetic linkage map. A ca. 55 % of genotyped markers displayed transmission ratio distortion (TRD) t...
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Article
Induced somatic sector analysis of cellulose synthase (CesA) promoter regions in woody stem tissues
The increasing focus on plantation forestry as a renewable source of cellulosic biomass has emphasized the need for tools to study the unique biology of woody genera such as Eucalyptus, Populus and Pinus. The dom...
