POTATO TUBER-SPHERE
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA854325 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR19914508_1.fastq.gz | Fastqsanger.gz | |||
| SRR19914509_1.fastq.gz | Fastqsanger.gz | |||
| SRR19914510_1.fastq.gz | Fastqsanger.gz | |||
| SRR19914511_1.fastq.gz | Fastqsanger.gz | |||
| SRR19914512_1.fastq.gz | Fastqsanger.gz |
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Project description:Tuber bruising in tetraploid potatoes (Solanum tuberosum) is a trait of economical importance, as it affects tubers' fitness for sale. Understanding the genetic components affecting tuber bruising is a key step in developing potato lines with increased resistance to bruising. As the tetraploid setting renders genetic analyses more complex, there is still a lot to learn about this complex phenotype. Here, we used genotype by sequencing data on a panel of half-sibling populations from a breeding programme to perform a genome-wide association analysis for tuber bruising. In addition, we collected transcriptomics data to enrich the GWAS results, by performing a differential expression analysis between samples with high- and low-bruising susceptibility.
2022-11-29 | GSE208439 | GEO
Project description:Nowadays, given the globalization as well as the numerous technological developments and innovations that govern the food market, consumer’s expectations, regarding the food they eat, have increased and the information they receive should be at least reliable. This proof-of- concept study is the first analysis of potato tuber tissue using integrated multi-omics approaches across genome-wide DNA methylation, RNA sequencing and quantitative proteomics to obtain the molecular portrait of famous PGI potatoes of Naxos island. Furthermore, we used metagenomics analysis in order to discriminate potato tubers produced in diverse PGI regions based on the distinct microbiological patterns. Hence, we reveal key molecular factors related to harvest and post-harvest through the dynamics of causal models.
2023-03-11 | PXD035074 | Pride
Project description:An in vivo and in vitro potato tuber development gene expression study. Keywords: Developmental stage analysis, time course
2007-07-18 | GSE5360 | GEO
Project description:Potato (Solanum tuberosum L) is a natural host of Potato spindle tuber viroid (PSTVd) which can cause characteristic symptoms on developing plants including stunting phenotype and distortion of leaves and tubers. PSTVd is the type species of the family Pospiviroidae, and can replicate in the nucleus and move systemically throughout the plant. It is not well understood how the viroid can affect host genes for successful invasion and which genes show altered expression levels upon infection. Our primary focus in this study is the identification of genes which can affect tuber formation since viroid infection can strongly influence tuber development and especially tuber shape. In this study, we used a large-scale method to identify differentially expressed genes in potato. We have identified defence, stress and sugar metabolism related genes having altered expression levels upon infection. Additionally, hormone pathway related genes showed significant up- or down-regulation. DWARF1/DIMINUTO, Gibberellin 7-oxidase and BEL5 transcripts were identified and validated showing differential expression in viroid infected tissues. Our study suggests that gibberellin and brassinosteroid pathways have a possible role in tuber development upon PSTVd infection.
| S-EPMC4777548 | biostudies-literature
Project description:Dormant/sprouting bud or eye tissue was collected from field grown Russet Burbank tubers using melon baler. These tubers after harvest washed with 5% Clorox, dried and stored at room temperature and allowed to sprout. Tissue samples were collected from dormant and sprouting eye at different physiological stages (based on length of the sprout) of sprouting. RNA was extracted using a hot phenol method and treated with DNAse. RNA extracted from different stages of sprouting potato tubers was used as query samples. RNA collected from non-sprouting eyes of potato tubers was used as reference samples Information on RNA samples. Plant species: S. tuberosum CV Russet Burbank. Tissue harvested: Tissue was harvested from the dormant/sprouting bud/eye using ½ inch melon baler. Time points: Dormant eyes –Stage 1 Initiating buds/sprouts – Stage 2 Sprouts (1/8 inch) – Stage 3 Sprouts (1/4 inch) – Stage 4 Sprout callus (1/4 inch) – Stage 5 Sprouts (1/2 inch) – Stage 6. Growth conditions: Field grown. Replicate information: Biological replicates; A, B and C Keywords: Direct comparison
2008-02-13 | GSE10484 | GEO
Project description:An in vivo and in vitro potato tuber development gene expression study. For in vitro tuber development expression analysis, RNA was isolated from in vitro microtubers at 2, 5, 10, 20 and 30 days following observed tuber induction. Two microtuber populations were used as biological replicates for the developmental stages. The RNA from all developmental stages was pooled to generate the reference samples. Ten microarray hybridizations were performed. For in vivo tuber development expression analysis, RNA was isolated from tubers growing in growth chamber conditions. Tissues were divided into six group, according to developmental size: stolon (no tuber formation), 1-5 mm tubers, 6-10 mm tubers, 11-15 mm tubers, 16-25 mm tubers, and 26-35 mm tubers. Two biological replicates of ten plants each were grown sequentially in the same growth chamber. The RNA from all developmental stages was pooled to generate the reference samples. Twelve microarray hybridizations were performed. For all experiments, the RNA was labeled using the indirect labeling method with random hexamer primers. Amplified cRNA was used as labeling template for stolons. Total RNA was used as labeling template in all other labeling reactions.
2010-07-01 | E-GEOD-5360 | biostudies-arrayexpress
Project description:BackgroundThe potato tuber moth (PTM), Phthorimaea operculella (Zeller), is a worldwide pest that feeds on both the leaves and tubers of potato plants. PTM larvae can digest leaves, or tubers, resulting in serious damage to potato plants in the field and potato tubers in storage. To understand how midgut bacterial diversity is influenced by the consumption of these two tissue types, the symbiotic bacteria in the potato-feeding PTM midgut and the endophytic bacteria of potato tissues were analyzed.ResultsAt the genus level, the bacterial community composition in the PTM midgut was influenced by the tissues consumed, owing to their different nutrient contents. Escherichia_Shigella and Enterobacter were the most dominant genera in the midgut of leaf-feeding and tuber-feeding PTMs, respectively. Interestingly, even though only present in low abundance in leaves and tubers, Escherichia_Shigella were dominantly distributed only in the midgut of leaf-feeding PTMs, indicating that specific accumulation of these genera have occurred by feeding on leaves. Moreover, Enterobacter, the most dominant genus in the midgut of tuber-feeding PTMs, was undetectable in all potato tissues, indicating it is gut-specific origin and tuber feeding-specific accumulation. Both Escherichia_Shigella and Enterobacter abundances were positively correlated with the dominant contents of potato leaves and tubers, respectively.ConclusionsEnrichment of specific PTM midgut bacterial communities was related to different nutrient levels in different tissues consumed by the insect, which in turn influenced host utilization. We provide evidence that a portion of the intestinal microbes of PTMs may be derived from potato endophytic bacteria and improve the understanding of the relationship between potato endophytic bacteria and the gut microbiota of PTMs, which may offer support for integrated management of this worldwide pest.
| S-EPMC7066784 | biostudies-literature
Project description:BackgroundPotato is a major staple food, and modification of its provitamin content is a possible means for alleviating nutritional deficiencies. beta-carotene is the main dietary precursor of vitamin A. Potato tubers contain low levels of carotenoids, composed mainly of the xanthophylls lutein, antheraxanthin, violaxanthin, and of xanthophyll esters. None of these carotenoids have provitamin A activity.ResultsWe silenced the first dedicated step in the beta-epsilon- branch of carotenoid biosynthesis, lycopene epsilon cyclase (LCY-e), by introducing, via Agrobacterium-mediated transformation, an antisense fragment of this gene under the control of the patatin promoter. Real Time measurements confirmed the tuber-specific silencing of Lcy-e. Antisense tubers showed significant increases in beta-beta-carotenoid levels, with beta-carotene showing the maximum increase (up to 14-fold). Total carotenoids increased up to 2.5-fold. These changes were not accompanied by a decrease in lutein, suggesting that LCY-e is not rate-limiting for lutein accumulation. Tuber-specific changes in expression of several genes in the pathway were observed.ConclusionThe data suggest that epsilon-cyclization of lycopene is a key regulatory step in potato tuber carotenogenesis. Upon tuber-specific silencing of the corresponding gene, beta-beta-carotenoid and total carotenoid levels are increased, and expression of several other genes in the pathway is modified.
| S-EPMC1570464 | biostudies-literature
Project description:A diploid, potato mapping population consisting of 149 individuals was assessed in three consecutive years for important agronomic and quality traits: tuber shape, regularity of tuber shape, eye depth, mean tuber weight, and tuber flesh color. Analysis of variance showed that the genotype had the largest influence on the phenotypic scores but effect of the genotype × year interactions was also strong. Using this data and an existing genetic map, a quantitative trait loci (QTL) analysis was conducted. From four to seven QTL were detected for each trait except tuber flesh color, which was determined by a major QTL on chromosome III explaining 76.8% of the trait variance. Additionally, a minor QTL for flesh color was localized on chromosome II. For the other traits, significant QTL were detected: for tuber shape on chromosome X, for regularity of tuber shape on chromosome III, for eye depth on chromosome IV, and for tuber weight on chromosome I. Some detected QTL confirmed previous studies, but new ones were also identified.
| S-EPMC5895667 | biostudies-literature