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21 results for “Eucalyptus grandis; Eucalyptus”
Genomic evidence of introgression and adaptation in a model subtropical tree species, Eucalyptus grandis
<p>The genetic consequences of adaptation to changing environments can be deciphered using landscape genomics, which may help predict species' responses to global climate change. Towards this, we used genome-wide SNP marker analysis to determine population structure and patterns of genetic differentiation in terms of neutral and adaptive genetic variation in the natural range of Eucalyptus grandis, a widely cultivated subtropical and temperate species, serving as genomic reference for the genus. We analysed introgression patterns at subchromosomal resolution using a modified ancestry mapping approach and identified provenances with extensive interspecific introgression, suggesting early hybrid speciation in response to increased aridity. Furthermore, we describe potentially adaptive genetic variation as explained by environment-associated SNP markers, which also led to the discovery of a large structural variant. Finally, we show that genes linked to these markers are enriched for biotic and abiotic stress responses.</p>
Data from: Ion Torrent PGM as tool for fungal community analysis: a case study of endophytes in Eucalyptus grandis reveals high taxonomic diversity
The Kingdom Fungi adds substantially to the diversity of life, but due to their cryptic morphology and lifestyle, tremendous diversity, paucity of formally described specimens, and the difficulty in isolating environmental strains into culture, fungal communities are difficult to characterize. This is especially true for endophytic communities of fungi living in healthy plant tissue. The developments in next generation sequencing technologies are, however, starting to reveal the true extent of fungal diversity. One of the promising new technologies, namely semiconductor sequencing, has thus far not been used in fungal diversity assessments. In this study we sequenced the internal transcribed spacer 1 (ITS1) nuclear encoded ribosomal RNA of the endophytic community of the economically important tree, Eucalyptus grandis, from South Africa using the Ion Torrent Personal Genome Machine (PGM). We determined the impact of various analysis parameters on the interpretation of the results, namely different sequence quality parameter settings, different sequence similarity cutoffs for clustering and filtering of databases for removal of sequences with insufficient taxonomy. Sequence similarity cutoff values only had a marginal effect on the identified family numbers, whereas different sequence quality filters had a large effect (89 vs. 48 families between least and most stringent filters). Database filtering had a small, but statistically significant, effect on the assignment of sequences to reference sequences. The community was dominated by Ascomycota, and particularly by families in the Dothidiomycetes that harbor well-known plant pathogens. The study demonstrates that semiconductor sequencing is an ideal strategy for environmental sequencing of fungal communities. It also highlights some potential pitfalls in subsequent data analyses when using a technology with relatively short read lengths.
Data from: Ion Torrent PGM as tool for fungal community analysis: a case study of endophytes in Eucalyptus grandis reveals high taxonomic diversity
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Genomic evidence of introgression and adaptation in a model subtropical tree species, Eucalyptus grandis
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Responses of resistant and susceptible hybrid clones of Eucalyptus urophylla × Eucalyptus grandis to infection by Ceratocystis fimbriata
<p>Responses of resistant and susceptible hybrid clones of Eucalyptus urophylla × Eucalyptus grandis to infection by Ceratocystis fimbriata</p> <p>The use of resistant genotypes of eucalypt is widely used to control Ceratocystis wilt caused by <em>Ceratocystis fimbriata</em>. However, little is known regarding the fungal infection process and the host defense responses. Thus, the objective of this study was to compare the histopathological responses of one resistant and one susceptible clone of <em>Eucalyptus urophylla</em> × <em>Eucalyptus grandis</em> to artificial inoculation with <em>C. fimbriata</em> and to identify possible host defense responses against fungal infection. Fungal colonization was analyzed by light and scanning electron microscopy. The host defense responses to artificial fungal inoculation were evaluated through histochemical analysis and determining of the lignin concentration and lesion lengths, whereas the pathogen viability was confirmed by reisolations.</p> <p>This excel file contains the raw data for each data table within a manuscript published in Annals of Forest Science.</p>
Variation in susceptibility of Eucalyptus grandis and selected hybrid clones to two termite species Macrotermes bellicosus and M. subhyalinus in Uganda
<p>The maximum productivity of plantation forestry and its role in climate change mitigation, adaptation and resilience cannot be met without proper management. Termites in the genus <i>Macrotermes</i> have been reported as a major challenge to <i>Eucalyptus</i> plantation forestry establishment. The current study evaluated the susceptibility of four <i>Eucalyptus</i> hybrid clones; GU 7, GC 796, GC 550 and GC 796/2 and <i>E. grandis </i>to the most damaging <i>Macrotermes bellicosus </i><span>(Smeathman) </span>and <i>Macrotermes subhyalinus </i><span>(Rambur) to identify tolerant material that can be planted in high incidence areas. The study involved exposure of moisture dry pieces of wood from <i>E. grandis</i> and the four hybrid clones to damage by <i>M. bellicosus</i> and <i>M. subhyalinus</i>. Results confirmed that <i>M. bellicosus</i> is the most aggressive. Results further revealed that <i>E. grandis</i> and GC 550 are the most susceptible whereas GC 796 is the most tolerant clone. The findings from the study will contribute to improved management of termites by planting tolerant material in high risk areas. </span></p>
Variation in susceptibility of Eucalyptus grandis and selected hybrid clones to two termite species Macrotermes bellicosus and M. subhyalinus in Uganda
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Gene expression analyses of four Pisolithus microcarpu strains: Si9, MW3, R4 and R10. Gene expression in Eucalyptus grandis mycorrhizal root tip was compared to gene expression in free-living mycelium
GEO Series GSE155420. Eucalyptus grandis; Pisolithus microcarpus. 23 samples. Type: Expression profiling by high throughput sequencing.
Microarray analysis of juvenile and mature cuttings of Eucalyptus grandis revealed developmental regulation of nitrate reductase which potentially influences nitric oxide production and adventitious r
GEO Series GSE36317. Eucalyptus grandis. 4 samples. Type: Expression profiling by array.
Genolyptus microarray studies of Eucalyptus grandis and Eucalyptus globulus leaf and xylem tissues
GEO Series GSE31696. Eucalyptus globulus; Eucalyptus grandis; Eucalyptus spp. mixed library. 10 samples. Type: Expression profiling by array.
Elevated carbon dioxide alters the interaction between Eucalyptus grandis and Pisolithus microcarpus through a complex shift in the root transcriptome
GEO Series GSE62227. Eucalyptus grandis; Pisolithus microcarpus. 23 samples. Type: Expression profiling by high throughput sequencing.
Profiling microRNAs in Eucalyptus grandis reveals no mutual relationship between alterations in miR156 and miR172 expression and adventitious root induction during development
GEO Series GSE58367. Eucalyptus grandis. 1 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Transcriptional profiling of Eucalyptus grandis challenged with Chrysoporthe austroafricana
GEO Series GSE67554. Eucalyptus grandis. 12 samples. Type: Expression profiling by high throughput sequencing.
Fungal metabolism and free amino acid content may predict nitrogen transfer to the host plant in the ectomycorrhizal relationship between Pisolithus spp. and Eucalyptus grandis
GEO Series GSE235669. Eucalyptus grandis; Pisolithus microcarpus. 43 samples. Type: Expression profiling by high throughput sequencing.
Eucalyptus grandis BC progeny
GEO Series GSE502. Eucalyptus grandis; Eucalyptus tereticornis. 91 samples. Type: Expression profiling by array.
Fig. 1 in Outbreak of Lampetis instabilis (Laporte and Gory) (Coleoptera: Buprestidae) on Regrowth Plantation ofEucalyptus urophylla S. T. Blake × Eucalyptus grandis Hill Ex Maiden Hybrids in Brazil
Fig. 1. Lampetis instabilis and injury to the main (A) and side (B) branches of Eucalyptus urophylla × E. grandis shoots, Grão Mogol, Minas Gerais, Brazil.
Profiling gene expression during root induction in juvenile and mature cuttings of Eucalyptus grandis revealed developmental and auxin dependent regulation of the microtubule system
GEO Series GSE57375. Eucalyptus grandis. 64 samples. Type: Expression profiling by array.
Genome-wide mapping of histone H3 lysine 4 trimethylation in Eucalyptus grandis developing xylem
GEO Series GSE67873. Eucalyptus grandis. 5 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
Exposure of Eucalyptus grandis and E. globulus to varied temperature and elevated CO2 concentration alone or in combination have profound effect in the expression of genes controlling cell wall format
GEO Series GSE165931. Eucalyptus globulus; Eucalyptus grandis. 36 samples. Type: Expression profiling by high throughput sequencing.
Expression profiling of PEG induced water stress responsive genes in Eucalyptus grandis
GEO Series GSE73106. Eucalyptus grandis; Eucalyptus. 3 samples. Type: Expression profiling by array.
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Allen Brain Atlas
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