GEO DataSets

(Submitter supplied) Coniferous trees use the oleoresin, a mixture of non-volatile non-volatile diterpene acids and a large (20-50%) volatile fraction of mono- and sesquiterpenes, as a defence tool against damaging herbivores and pathogens. Volatilization of monoterpenes increases viscosity of oleoresin and finally leading to polymerization of resin and a formation of protective solid plug. Resin storing conifers form an important source of volatile organic compounds (VOCs) mainly dominated by volatile monoterpenes. more...

Organism:

Pinus sylvestris

Type:

Expression profiling by array

Platform:

GPL19078

6 Samples

Download data: PAIR

(Submitter supplied) Corning UltraGaps Protocol: Microarray Fabrication and Quality Control Clones were selected from 12 spruce cDNA libraries based on a CAP3 assembly (Huang and Madan, 1999; 95% identity and 40 bp overlap) of 50,770 high-quality 3’ ESTs processed for quality as described in Ralph et al. (2006). This assembly yielded 22,154 contigs and 13,423 singletons. For each contig, the EST member having the longest quality- and vector-trimmed (QVT) sequence was chosen as the representative. more...

Organism:

Picea

12 Series

381 Samples

Download data

(Submitter supplied) White pine weevil is a major pest of conifers in North America, especially for Spruce trees. Constitutive defenses are important in understanding defense mechanisms because they constitute the initial barrier to attacks by weevils and other pests. Resistant and susceptible trees exhibit constitutive differences in spruce. To improve our knowledge of their genetic basis, we compared the constitutive expression levels of 17,825 genes between 20 resistant and 20 susceptible trees in interior spruce (Picea glauca).

Organism:

Picea; Picea engelmannii x Picea glauca

Type:

Expression profiling by array

Platform:

GPL5423

20 Samples

Download data: TXT

(Submitter supplied) The transcriptome of PpNAC1 RNAi Pinus pinaster plantlets (60 days) were analyzed.

Organism:

Pinus pinaster

Type:

Expression profiling by array

Platform:

GPL19234

8 Samples

Download data: GPR

(Submitter supplied) Wood stiffness is the most important wood quality trait of forest trees for structural timber production. We investigated genes differentially transcribed in radiate pine trees with distinct wood stiffness using bulked segregant analysis (BSA) and cDNA microarrays. Transcript accumulation in earlywood (EW) and latewood (LW) of high (HS) and low stiffness (LS) trees in two progeny trials was compared.

Organism:

Pinus radiata

Type:

Expression profiling by array

Platform:

GPL8302

12 Samples

Download data: GPR

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Pinus taeda; Pinus sylvestris

Type:

Expression profiling by array

Platforms:

GPL1508 GPL4039

108 Samples

Download data: TXT

(Submitter supplied) The response mechanisms, recognition and specificity of conifer trees during interaction with pathogenic, saprotrophic or symbiotic ectomycorrhizal fungus were investigated. The roots of Pinus sylvestris were challenged for five days with either Heterobasidion annosum (a pathogenic root rot fungus which attacks Norway spruce, Scots pine and broad leaf trees); Laccaria bicolor (an obligate ectomycorrhizal symbiont); or Trichoderma aureoviride (an obligate saprotroph). more...

Organism:

Pinus taeda; Pinus sylvestris

Type:

Expression profiling by array

Platform:

GPL4039

36 Samples

Download data: TXT

(Submitter supplied) The response mechanisms, recognition and specificity of conifer trees during interaction with pathogenic, saprotrophic or symbiotic ectomycorrhizal fungus were investigated. The roots of Pinus sylvestris were challenged for fifteen days with either Heterobasidion annosum (a pathogenic root rot fungus which attacks Norway spruce, Scots pine and broad leaf trees); Laccaria bicolor (an obligate ectomycorrhizal symbiont); or Trichoderma aureoviride (an obligate saprotroph). more...

Organism:

Pinus taeda; Pinus sylvestris

Type:

Expression profiling by array

Platform:

GPL4039

36 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling of Pinus pinaster adult needles in a complete year. The needles were isolated by year emergence (whorl) in four groups. 0 (2012), 1 (2011), 2 (2010) and 3 (2009). The samples were harvested at 1245 m of altitude at Los Reales de Sierra Bermeja (Spain) (30S X:303.095 Y:4.039.618) one time per month.

Organism:

Pinus pinaster

Type:

Expression profiling by array

Platform:

GPL18419

66 Samples

Download data: GPR

(Submitter supplied) The response of kiwifruit vine (Actinidia chinensis 'Hort16A') canes to feeding by the armoured scale insect Hemiberlesia lataniae was tested by screening RNA extracted from bark against a cDNA library of 17,512 unigenes. Substantial transcriptional changes were noted after 7 days for approximately 30% of the ESTs. Transcripts associated with photosynthesis were down-regulated and those associated with secondary metabolism up-regulated. more...

Organism:

Actinidia chinensis

Type:

Expression profiling by array

Platform:

GPL21014

22 Samples

Download data: GPR

(Submitter supplied) In the present study, the gene expression changes in four different tissues of root tips from maritime pine were analyzed. The roots were under two nutritional conditions (only watered or fertilised with 3 mM of ammonium) and harvested after 24 hours of the treatment.

Organism:

Pinus pinaster

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30195

24 Samples

Download data: TXT

(Submitter supplied) By exploring the large-scale transcriptome analysis, we aim to identify differentially expressed genes in the comparison between resistant and susceptible families.

Organism:

Pinus sylvestris

Type:

Expression profiling by high throughput sequencing

Platform:

GPL32142

24 Samples

Download data: TXT

(Submitter supplied) Gene expression analysis of the different tissues of one month old seedlings or Pinus pinaster.

Organism:

Pinus pinaster

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21513

14 Samples

Download data: FASTA, TXT

(Submitter supplied) The meristem-associated endosymbiont M. extorquens DSM13060 significantly increases needle and root growth of Scots pine (Pinus sylvestris L.) seedlings without producing plant hormones, but by aggregating around host nuclei. Here we studied gene expression of the pine host induced by M. extorquens DSM13060 infection. We selected the time point of 90 days post-inoculation for our analysis based, because at this point, Methylorubrum extorquens DSM13060 has systemically colonized the pine seedlings, being found throughout tissues of roots and shoots.

Organism:

Pinus sylvestris; Pinus pinaster

Type:

Expression profiling by array

Platform:

GPL29939

6 Samples

Download data: GPR, TXT, XLS, XLSX

(Submitter supplied) Food resource access can mediate establishment success in invasive species, and generalist herbivorous insects are thought to rely on mechanisms of transcriptional plasticity to respond to dietary variation. While asexually reproducing invasives typically have low genetic variation, the twofold reproductive capacity of asexual organisms is a marked advantage for colonization. We studied host-related transcriptional acclimation in parthenogenetic, invasive, and polyphagous weevils: Naupactus cervinus and N. more...

Organism:

Naupactus leucoloma; Naupactus cervinus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL30096 GPL30090

52 Samples

Download data: CSV, FASTA