Picea abies (L.) Karst
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA734471 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR14729029_1.fastq.gz | Fastqsanger.gz | |||
| SRR14729029_2.fastq.gz | Fastqsanger.gz | |||
| SRR14729030_1.fastq.gz | Fastqsanger.gz | |||
| SRR14729030_2.fastq.gz | Fastqsanger.gz | |||
| SRR14729031_1.fastq.gz | Fastqsanger.gz |
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Similar Datasets
Project description:Microarray assay of the genetic response of Picea abies to Heterobasidion annosum infection - Loop2
| PRJNA108959 | ENA
Project description:Microarray assay of the genetic response of Picea abies to Heterobasidion annosum infection - Loop1
| PRJNA108957 | ENA
Project description:Heterobasidion spp. norway spruce Raw sequence reads
| PRJNA800074 | ENA
Project description:The Norway spruce (Picea abies), the most important tree species in European forests, is relatively sensitive to salt and does not grow in natural saline environments. Yet many trees are actually exposed to salt stress due to the common practice of de-icing of mountain roads in winter, using large amounts of NaCl. To help develop strategies for an appropriate use of reproductive seed material on reforestation sites, ensuring better chances of seedling survival in salt-affected areas, we have studied the responses of young spruce seedlings to salt treatments. The specific aim of the work was to identify the optimal salt stress biomarkers in Picea abies, using as experimental material seedlings obtained by germination of seeds with origin in seven populations from the Romanian Carpathian Mountains. These responses included general, conserved reactions such as the accumulation of ions and different osmolytes in the seedlings needles, reduction in photosynthetic pigments levels, or activation of antioxidant systems. Although changes in the contents of different compounds involved in these reactions can be associated to the degree of stress affecting the plants, we propose that the (decreasing) levels of total phenolics or total carotenoids and the (increasing) levels of Na+ or K+ ions in Picea abies needles, should be considered as the most reliable and useful biomarkers for salt stress in this species. They all show very high correlation with the intensity of salt stress, independently of the genetic background of the seeds parental population, and relatively easy, quantitative assays are available to determine their concentrations, requiring simple equipment and little amount of plant material.
| S-EPMC4545727 | biostudies-literature
Project description:This SuperSeries is composed of the following subset Series: GSE10058: Microarray assay of the genetic response of Picea abies to Heterobasidion annosum infection - Loop1 GSE10059: Microarray assay of the genetic response of Picea abies to Heterobasidion annosum infection - Loop2 The hypothesis of the experiment is that infected trees of high resistance express a wider variety of resistance genes than infected trees of low resistance, and that the level of expression of these resistance genes differs between infected and healthy branches. Also, some genes highly expressed in the infected state not expressed in the healthy state may be in response to the wounding rather than the actual infection. By comparing these expressions to that of wounded, uninfected branches, this could also be clarified. Refer to individual Series
2008-05-03 | E-GEOD-11323 | biostudies-arrayexpress
Project description:The ability of plants to track seasonal changes is largely dependent on genes assigned to the photoperiod pathway, and variation in those genes is thereby important for adaptation to local day length conditions. Extensive physiological data in several temperate conifer species suggest that populations are adapted to local light conditions, but data on the genes underlying this adaptation are more limited. Here we present nucleotide diversity data from 19 genes putatively involved in photoperiodic response in Norway spruce (Picea abies). Based on similarity to model plants the genes were grouped into three categories according to their presumed position in the photoperiod pathway: photoreceptors, circadian clock genes, and downstream targets. An HKA (Hudson, Kreitman and Aquade) test showed a significant excess of diversity at photoreceptor genes, but no departure from neutrality at circadian genes and downstream targets. Departures from neutrality were also tested with Tajima's D and Fay and Wu's H statistics under three demographic scenarios: the standard neutral model, a population expansion model, and a more complex population split model. Only one gene, the circadian clock gene PaPRR3 with a highly positive Tajima's D value, deviates significantly from all tested demographic scenarios. As the PaPRR3 gene harbours multiple non-synonymous variants it appears as an excellent candidate gene for control of photoperiod response in Norway spruce.
| S-EPMC4014479 | biostudies-literature
Project description:From studies of the circadian clock in the plant model species Arabidopsis (Arabidopsis thaliana), a number of important properties and components have emerged. These include the genes CIRCADIAN CLOCK ASSOCIATED 1 (CCA1), GIGANTEA (GI), ZEITLUPE (ZTL) and TIMING OF CAB EXPRESSION 1 (TOC1 also known as PSEUDO-RESPONSE REGULATOR 1 (PRR1)) that via gene expression feedback loops participate in the circadian clock. Here, we present results from ectopic expression of four Norway spruce (Picea abies) putative homologs (PaCCA1, PaGI, PaZTL and PaPRR1) in Arabidopsis, their flowering time, circadian period length, red light response phenotypes and their effect on endogenous clock genes were assessed. For PaCCA1-ox and PaZTL-ox the results were consistent with Arabidopsis lines overexpressing the corresponding Arabidopsis genes. For PaGI consistent results were obtained when expressed in the gi2 mutant, while PaGI and PaPRR1 expressed in wild type did not display the expected phenotypes. These results suggest that protein function of PaCCA1, PaGI and PaZTL are at least partly conserved compared to Arabidopsis homologs, however further studies are needed to reveal the protein function of PaPRR1. Our data suggest that components of the three-loop network typical of the circadian clock in angiosperms were present before the split of gymnosperms and angiosperms.
| S-EPMC3610754 | biostudies-literature
Project description:BackgroundGenome-wide association studies (GWAS) identify loci underlying the variation of complex traits. One of the main limitations of GWAS is the availability of reliable phenotypic data, particularly for long-lived tree species. Although an extensive amount of phenotypic data already exists in breeding programs, accounting for its high heterogeneity is a great challenge. We combine spatial and factor-analytics analyses to standardize the heterogeneous data from 120 field experiments of 483,424 progenies of Norway spruce to implement the largest reported GWAS for trees using 134 605 SNPs from exome sequencing of 5056 parental trees.ResultsWe identify 55 novel quantitative trait loci (QTLs) that are associated with phenotypic variation. The largest number of QTLs is associated with the budburst stage, followed by diameter at breast height, wood quality, and frost damage. Two QTLs with the largest effect have a pleiotropic effect for budburst stage, frost damage, and diameter and are associated with MAP3K genes. Genotype data called from exome capture, recently developed SNP array and gene expression data indirectly support this discovery.ConclusionSeveral important QTLs associated with growth and frost damage have been verified in several southern and northern progeny plantations, indicating that these loci can be used in QTL-assisted genomic selection. Our study also demonstrates that existing heterogeneous phenotypic data from breeding programs, collected over several decades, is an important source for GWAS and that such integration into GWAS should be a major area of inquiry in the future.
| S-EPMC8201819 | biostudies-literature
Project description:DNA polymorphism at 22 loci was studied in an average of 47 Norway spruce [Picea abies (L.) Karst.] haplotypes sampled in seven populations representative of the natural range. The overall nucleotide variation was limited, being lower than that observed in most plant species so far studied. Linkage disequilibrium was also restricted and did not extend beyond a few hundred base pairs. All populations, with the exception of the Romanian population, could be divided into two main domains, a Baltico-Nordic and an Alpine one. Mean Tajima's D and Fay and Wu's H across loci were both negative, indicating the presence of an excess of both rare and high-frequency-derived variants compared to the expected frequency spectrum in a standard neutral model. Multilocus neutrality tests based on D and H led to the rejection of the standard neutral model and exponential growth in the whole population as well as in the two main domains. On the other hand, in all three cases the data are compatible with a severe bottleneck occurring some hundreds of thousands of years ago. Hence, demographic departures from equilibrium expectations and population structure will have to be accounted for when detecting selection at candidate genes and in association mapping studies, respectively.
| S-EPMC1698656 | biostudies-literature
Project description:The hypothesis of the experiment is that infected trees of high resistance express a wider variety of resistance genes than infected trees of low resistance, and that the level of expression of these resistance genes differs between infected and healthy branches. Also, some genes highly expressed in the infected state not expressed in the healthy state may be in response to the wounding rather than the actual infection. By comparing these expressions to that of wounded, uninfected branches, this could also be clarified. Three different Picea abies clones, of increasing resistance to fungal attack, have been infected. For all clones, three rametes have been infected with Heterobasidion of 1 month, by means of cutting the cambium and inoculating a piece of fungus growing in agar in the wound. For the low and medium resistant clone, a fourth ramete has been cut and inoculated with agar not containing any fungal material.
2008-05-03 | E-GEOD-10058 | biostudies-arrayexpress