Hordeum vulgare
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ABSTRACT:
PROVIDER: PRJNA149131 | ENA |
REPOSITORIES: ENA
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Project description:Effect of the low phytic acid mutation on gene expression of developing seeds of M955, a low phytic acid barley genotype with >90% reduction in phytic acid in mature seeds. Expression analysis using the Barley1 GeneChip was performed on total RNA from developing seeds (7DAA) of M955 lpa and wt sib-selections. Sib-selections were from BC2 populations of M955 with Harrington as the recurrent parent. Material was grown in field trials in two years 2003 and 2004. In 2003 expression analysis was done from 2 lpa and 3 wt sib-selections, and in 2004 analysis was done from 2 lpa and 2 wt sib-selections. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, David Bowen. The equivalent experiment is BB22 at PLEXdb.]
2011-11-22 | GSE33395 | GEO
Project description:Effect of the low phytic acid mutation on gene expression of developing seeds of M955, a low phytic acid barley genotype with >90% reduction in phytic acid in mature seeds. Expression analysis using the Barley1 GeneChip was performed on total RNA from developing seeds (7DAA) of M955 lpa and wt sib-selections. Sib-selections were from BC2 populations of M955 with Harrington as the recurrent parent. Material was grown in field trials in two years 2003 and 2004. In 2003 expression analysis was done from 2 lpa and 3 wt sib-selections, and in 2004 analysis was done from 2 lpa and 2 wt sib-selections. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, David Bowen. The equivalent experiment is BB22 at PLEXdb.] genotype: M955 LPA sib-selection - year: 2003(2-replications); genotype: M955 LPA sib-selection - year: 2004(2-replications); genotype: M955 WT sib-selection - year: 2003(3-replications); genotype: M955 WT sib-selection - year: 2004(2-replications)
2011-11-22 | E-GEOD-33395 | biostudies-arrayexpress
Project description:Effect of high grain protein locus on barley grain protein accumulation. Gene expression levels were analysed in Karl, a low grain protein variety with its near-isogenic line 10_11(has high grain protein locus, chromosome 6)using Barley1 22k affymetrix chip. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Aravind Jukanti. The equivalent experiment is BB53 at PLEXdb.] developmental stage: 14 days past anthesis - genotype: Karl - tissue type: Leaves(3-replications); developmental stage: 14 days past anthesis - genotype: Karl - tissue type: Kernels(3-replications); developmental stage: 14 days past anthesis - genotype: 10-11 (NIL with high grain protein locus) - tissue type: Leaves(3-replications); developmental stage: 14 days past anthesis - genotype: 10-11 (NIL with high grain protein locus) - tissue type: Kernels(3-replications); developmental stage: 21 days past anthesis - genotype: Karl - tissue type: Leaves(3-replications); developmental stage: 21 days past anthesis - genotype: Karl - tissue type: Kernels(3-replications); developmental stage: 21 days past anthesis - genotype: 10-11 (NIL with high grain protein locus) - tissue type: Leaves(3-replications); developmental stage: 21 days past anthesis - genotype: 10-11 (NIL with high grain protein locus) - tissue type: Kernels(3-replications)
2011-11-22 | E-GEOD-33413 | biostudies-arrayexpress
Project description:Senescence is the last developmental phase of plant tissues, plant organs and, in the case of monocarpic senescence, entire plants. In monocarpic crops such as barley, it leads to massive remobilization of nitrogen (primarily from degradation of photosynthetic proteins) and other nutrients to developing seeds. Senescence has therefore a major impact on both yield and seed/grain quality. To further investigate this process, a proteomic comparison of flag leaves of late-senescing barley variety ‘Karl’ and a near-isogenic early-senescing line, ‘10_11’, was performed at 14 and 21 days past anthesis, using both two-dimensional gel-based and label-free quantitative mass spectrometry-based (‘shotgun’) proteomic techniques. Overall, this approach identified >9,000 barley proteins, and one-third of them were quantified. Analysis focused on proteins that were significantly (P-value ≤0.05; difference ≥1.5-fold) upregulated in early-senescing line ‘10_11’ as compared to ‘Karl’, as these may be functionally important for the senescence process. Many proteins in this group, including several membrane and intracellular receptors, glucanases, enzymes with possible roles in cuticle modification, classical pathogenesis-related proteins, membrane transporters and proteins involved in DNA repair, have likely or putative functions in plant pathogen defense. Additionally, several proteases and elements of the ubiquitin-proteasome system were upregulated in line ‘10_11’; these proteins may be involved in nitrogen remobilization, and in the regulation of both senescence and plant defense reactions. Together, our data shed new light, at the protein level, on the importance of plant defense reactions during senescence, on senescence regulation, and possibly on crosstalk between senescence regulation and plant-pathogen interaction.
2017-02-08 | PXD002307 | Pride
Project description:The low phytic acid trait in soybeans can be conferred by loss-of-function mutations in genes encoding myo-inositol phosphate synthase and two epistatically interacting genes encoding multidrug-resistance protein ABC transporters. However, perturbations in phytic acid biosynthesis are associated with poor seed vigor. Since the benefits of the low phytic acid trait, in terms of end-use quality and sustainability, far outweigh the negatives associated with poor seed performance, a fuller understanding of the molecular basis behind the negatives will assist crop breeders and engineers in producing variates with low phytic acid and better germination rate. The gene regulatory network for developing low and normal phytic acid soybean seeds was previously constructed, with genes modulating a variety of processes pertinent to phytic acid metabolism and seed viability being identified. In this study, a comparative time series analysis of low and normal phytic acid soybeans was carried out to investigate the transcriptional regulatory elements governing the transitional dynamics from dry seed to germinated seed. Gene regulatory networks were reverse engineered from time series transcriptomic data of three distinct genotypic subsets composed of low phytic acid soybean lines and their normal phytic acid sibling lines. Using a robust unsupervised network inference scheme, putative regulatory interactions were inferred for each subset of genotypes. These interactions were further validated by published regulatory interactions found in Arabidopsis thaliana and motif sequence analysis. Results indicate that low phytic acid seeds have increased sensitivity to stress, which could be due to changes in phytic acid levels, disrupted inositol phosphate signaling, disrupted phosphate ion homeostasis, and altered myo-inositol metabolism. Putative regulatory interactions were identified for the latter two processes. Changes in abscisic acid signaling candidate transcription factors putatively regulating genes in this process were identified as well. Analysis of the gene regulatory networks reveal altered regulation in processes that may be affecting the germination of low phytic acid soybean seeds. Therefore, this work contributes to the ongoing effort to elucidate molecular mechanisms underlying altered seed viability, germination and field emergence of low phytic acid crops, understanding of which is necessary in order to mitigate these problems.
2021-06-17 | GSE172018 | GEO
Project description:Shoot and root of barley seeds: Abscisic acid (ABA) treatment
| PRJNA177390 | ENA
Project description:In the present study, we investigated the transcriptome features during hulless barley grain development. Using Illumina paired-end RNA-Sequencing, we generated two data sets of the developing grain transcriptomes from two hulless barley landraces.
2014-06-19 | E-MTAB-4307 | biostudies-arrayexpress
Project description:Shoot and root of barley seeds: Drying treatment
| PRJNA177393 | ENA