Ontology highlight
ABSTRACT:
PROVIDER: PRJNA605502 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR11045075_1.fastq.gz | Fastqsanger.gz | |||
| SRR11045075_2.fastq.gz | Fastqsanger.gz | |||
| SRR11045076_1.fastq.gz | Fastqsanger.gz | |||
| SRR11045076_2.fastq.gz | Fastqsanger.gz | |||
| SRR11045077_1.fastq.gz | Fastqsanger.gz |
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Similar Datasets
Project description:Jerusalem artichoke (JA) tubers are an important bio-economy developing crop because of its invaluable bioproducts in both food and biofuel aspects. However, the molecular mechanism of its tuberization, and the differences among different cultivars have been little studied to date. Here, we conducted a comparative proteome profiling of the JA tubers of three different cultivars including PJA, DJA, and HJA, showing phenotypic characteristics. Tuber epidermal pigmentation and underground tuberization habit were different phenological characters in the three cultivars and inulin content was also a physiological character exceptionally DJA regardless of the similar level of total carbohydrate amount. We identified a total of 420 proteins in the tubers and out of 114 showed significantly modulated among the cultivars. GO classification of the DEPs revealed biosynthesis amino acid and carbohydrate metabolic enzymes were differentially expressed in the three cultivar tubers. Integrated physiological inulin content and the biosynthetic protein expression levels among the cultivars suggest that Sucrose:sucrose 1-fructosyltransferase (1-SST) prioritizes inulin biosynthesis rather than rate-limiting enzyme fructan:fructan 1-fructosyltransferases (1-FFT). Furthermore, we confirmed the relationship between transcript-protein expression levels was in discord within inulin biosynthesis enzymes 1-SST and 1-FFT with the terms in previous RT-qPCR results using the same tubers. Our data represent the first report that comparative proteome profiling in JA tubers among the different cultivars and provides the metabolic and molecular basis for understanding carbohydrate metabolism in storage tuber tissue.
2019-05-29 | PXD010835 | Pride
Project description:The present research investigates a ‘medicinal’ plant Jerusalem artichoke (abbreviated as JA) (Helianthus tuberosus L.) tuber proteome with an aim to unravel its proteome using a high-throughput proteomics technique. Although JA has been historically know to the Native Americans, it was brought back and spread to Europe by the colonists and in the late 19th century early 20th century it began to regain importance including its use for health and as a folk remedy for diabetes. In Japan (referred to as ‘kiku-imo’) its cultivation became popular mostly for health-related benefits such as reducing the blood sugar level. The group of (Genboku Takahashi et al.) has been working on the cultivation and utilization of kiku-imo tuber as a traditional/alternative medicine in daily life, and thus the research progressed to deeply look into the protein components through proteomics as very less is known about the proteome of the tubers, especially in relation to its importance as a functional food in treating diseases health conditions like diabetes. Using three commercially processed JA tuber products we used total protein extraction on the powdered samples in conjunction with label-free quantitate proteomic approach (mass spectrometry) to identify for the first time a comprehensive protein list for the JA tuber. A total of 2967 high‐confidence proteins were identified and categorized into different protein classes through bioinformatics. We have discussed these proteins especially in relation to their association with health and disease regulatory metabolism.
2022-02-21 | PXD030744 | Pride
Project description:Helianthus tuberosus L., known as the Jerusalem Artichoke, is a hexaploid plant species, adapted to low nutrient soils, that accumulates high levels of inulin in its tubers. Inulin is a fructose-based polysaccharide used either as dietary fiber or for the production of bioethanol. Key enzymes involved in inulin biosynthesis are well known. However, the gene networks underpinning tuber development and inulin accumulation in H. tuberous remain elusive. To fill this gap, we selected 6,365 ESTs from a H. tuberosus library to set up a microarray platform and record their expression across three tuber developmental stages, when rhizomes start enlarging (T0), at maximum tuber elongation rate (T3) and at tuber physiological maturity (Tm), in “VR” and “K8-HS142”clones. The former was selected as an early tuberizing, the latter as a late-tuberizing clone. We quantified inulin and starch levels, and q-RT PCR confirmed the expression of key genes accounting for inulin biosynthesis. The microarray analysis revealed that the differences in morphological and physiological traits between tubers of the two clones are genetically determined since T0 and that is relatively low the number of differentially expressed ESTs across the stages shared between the clones (93). The expression of ESTs for sucrose:sucrose 1-fructosyltransferase (1-SST) and fructan:fructan 1-fructosyltransferase (1-FFT), the two critical genes for fructans polymerization, resulted to be temporarily synchronized and mirror the progress of inulin accumulation and stretching. The expression of ESTs for starch biosynthesis was insignificant throughout the developmental stages of the clones in line with the negligible level of starch into their mature tubers, where inulin was the dominant polysaccharide. Overall, our study disclosed candidate genes underpinning the development and storage of carbohydrates in the tubers of two H. tuberosus clones. A model according to which the steady state levels of 1-SST and 1-FFT transcripts are developmentally controlled and might represent a limiting factor for inulin accumulation has been provided. Our finding may have significant repercussions for breeding clones with improved levels of inulin for food and chemical industry.
2020-01-13 | GSE132955 | GEO
Project description:Transcriptome sequencing of Helianthus tuberosus, Jerusalem Artichoke
| PRJNA856301 | ENA