Bacterial in long-term CC of Tibetan barley
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA759342 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15693800.fastq.gz | Fastqsanger.gz | |||
| SRR15693801.fastq.gz | Fastqsanger.gz | |||
| SRR15693790.fastq.gz | Fastqsanger.gz | |||
| SRR15693791.fastq.gz | Fastqsanger.gz | |||
| SRR15693792.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 12 |
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Project description:Rhizospheric Bacterial Community of Tibetan barley Raw sequence reads
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Project description:Gene expression changes in a winter cultivar of barley in response to short and long term cold treatments ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Ben Trevaskis. The equivalent experiment is BB94 at PLEXdb.] treatment: Non-vernalized (3-replications); treatment: Short-term cold (3-replications); treatment: Vernalized (3-replications); treatment: 1 day post-vernalized (3-replications)
2011-03-08 | E-GEOD-27821 | biostudies-arrayexpress
Project description:Soil potassium deficiency has become a global problem in agricultural production, seriously restricting crops productions and agricultural sustainable development. Identification of the microRNAs and understanding their functions in response to low K stress will be helpful for developing crop varieties with low K tolerance. Our previous study identified a low K tolerant accession XZ153 from Tibetan wild barley. In this study, small RNA and degradome analysis were performed on two barley genotypes differing in low K tolerance (XZ153, tolerant; ZD9, sensitive) to identify the miRNAs and their targets responding to low K stress. A total of 1108 miRNAs were detected in shoots of XZ153, and ZD9 at 2 d and 7 d after low K stress, and their targets were identified through bioinformatics prediction and degradome analysis. We identified 65 differentially expressed miRNAs responding to low K stress. The results also showed that miR164c, miR169h and miR395a modules could mediate TCA cycle, glycolysis pathway and pentose phosphate pathway responding to low K stress. The osa-miR166g-3p and ghr-miR482b may act as the regulators in Ca2+ signaling pathway in response to low K stress. The methionine salvage cycle involved in ethylene biosynthesis process mediated by miR396c-3p and osa-miR171e-5p might be also involved in responding to low K stress. Some miRNAs, including miR160a, miR396c and miR169h modules, which participated in photosynthesis regulation under low K stress, differed between the two barley genotypes. In conclusion, these exclusively expressed miRNAs and their targets play the crucial roles in low K tolerance.
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Project description:Soil potassium deficiency has become a global problem in agricultural production, seriously restricting crops productions and agricultural sustainable development. Identification of the microRNAs and understanding their functions in response to low K stress will be helpful for developing crop varieties with low K tolerance. Our previous study identified a low K tolerant accession XZ153 from Tibetan wild barley. In this study, small RNA and degradome analysis were performed on two barley genotypes differing in low K tolerance (XZ153, tolerant; ZD9, sensitive) to identify the miRNAs and their targets responding to low K stress. A total of 1108 miRNAs were detected in shoots of XZ153, and ZD9 at 2 d and 7 d after low K stress, and their targets were identified through bioinformatics prediction and degradome analysis. We identified 65 differentially expressed miRNAs responding to low K stress. The results also showed that miR164c, miR169h and miR395a modules could mediate TCA cycle, glycolysis pathway and pentose phosphate pathway responding to low K stress. The osa-miR166g-3p and ghr-miR482b may act as the regulators in Ca2+ signaling pathway in response to low K stress. The methionine salvage cycle involved in ethylene biosynthesis process mediated by miR396c-3p and osa-miR171e-5p might be also involved in responding to low K stress. Some miRNAs, including miR160a, miR396c and miR169h modules, which participated in photosynthesis regulation under low K stress, differed between the two barley genotypes. In conclusion, these exclusively expressed miRNAs and their targets play the crucial roles in low K tolerance.
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Project description:Tibetan hulless barley (Hordeum vulgare L.) growing in the Qinghai-Tibet Plateau is the major staple food crop for the Tibetans. However, because of soil salinity, the agricultural production of hulless barley is challenged by salinity stress. Here, we perform data-independent acquisition (DIA)-based quantitative proteomics of two barley cultivars with differential salinity tolerance under salt stress
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Project description:Continuous cropping often leads to an unbalanced soil microbial community, which in turn negatively affects soil functions. However, systematic research of how these effects impact the bacterial composition, microbial functional traits, and soil metabolites is lacking. In the present study, the rhizosphere soil samples of Tibetan barley continuously monocropped for 2 (CCY02), 5 (CCY05), and 10 (CCY10) years were collected. By utilizing 16S high-throughput sequencing, untargeted metabolomes, and quantitative microbial element cycling smart chips, we examined the bacterial community structure, soil metabolites, and bacterial functional gene abundances, respectively. We found that bacterial richness (based on Chao1 and Phylogenetic Diversity [PD] indices) was significantly higher in CCY02 and CCY10 than in CCY05. As per principal component analysis (PCA), samples from the continuous monocropping year tended to share more similar species compositions and soil metabolites, and exhibited distinct patterns over time. The results of the Procrustes analysis indicated that alterations in the soil metabolic profiles and bacterial functional genes after long-term continuous cropping were mainly mediated by soil microbial communities (P < 0.05). Moreover, 14 genera mainly contributed to the sample dissimilarities. Of these, five genera were identified as the dominant shared taxa, including Blastococcus, Nocardioides, Sphingomonas, Bacillus, and Solirubrobacter. The continuous cropping of Tibetan barley significantly increased the abundances of genes related to C-degradation (F = 9.25, P = 0.01) and P-cycling (F = 5.35, P = 0.03). N-cycling significantly negatively correlated with bacterial diversity (r = - 0.71, P = 0.01). The co-occurrence network analysis revealed that nine hub genera correlated with most of the functional genes and a hub taxon, Desulfuromonadales, mainly co-occurred with the metabolites via both negative and positive correlations. Collectively, our findings indicated that continuous cropping significantly altered the bacterial community structure, functioning of rhizosphere soils, and soil metabolites, thereby providing a comprehensive understanding of the effects of the long-term continuous cropping of Tibetan barley.
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Project description:The extreme environments of the Tibetan Plateau offer significant challenges to human survival, demanding novel adaptations. While the role of biological and agricultural adaptations in enabling early human colonization of the plateau has been widely discussed, the contribution of pastoralism is less well understood, especially the dairy pastoralism that has historically been central to Tibetan diets. Here, we analyze preserved proteins from the dental calculus of 40 ancient individuals to report the earliest direct evidence of dairy consumption on the Tibetan Plateau. Our palaeoproteomic results demonstrate that dairy pastoralism began on the higher plateau by approximately 3,500 years ago, more than 2,000 years earlier than the recording of dairying in historical sources. With less than 1% of the Tibetan Plateau dedicated to farmland, pastoralism and the milking of ruminants were essential for large-scale human expansion into agriculturally-marginal regions that make up the majority of the plateau. Dairy pastoralism allowed conversion of abundant grasslands into nutritional human food, which facilitating adaptation in the face of extreme climatic and altitudinal pressures, and maximizing the land area available for long-term human occupation of the “roof of the world”.
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