Lactuca sativa var. crispa
Ontology highlight
ABSTRACT:
PROVIDER: PRJDB13459 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| DRR374254_1.fastq.gz | Fastqsanger.gz | |||
| DRR374254_2.fastq.gz | Fastqsanger.gz | |||
| DRR374255_1.fastq.gz | Fastqsanger.gz | |||
| DRR374255_2.fastq.gz | Fastqsanger.gz | |||
| DRR374256_1.fastq.gz | Fastqsanger.gz |
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Project description:Resequencing of Black seed cultivar and White seed cultivar in crisphead lettuce
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Project description:Lettuce (Lactuca sativa L.) is a highly perishable horticultural crop with a relatively short shelf life due to leaf senescence that limits its commercial value and contributes to food waste. Postharvest senescence varies with influences of both environmental and genetic factors. Preharvest genetic factors can be indicative of postharvest quality. Discovery of additional preharvest markers to assess lettuce shelf life is an important step towards increasing the efficiency of lettuce breeding efforts for improved shelf life. We selected and evaluated three romaine lettuces with variable shelf lives with the aim of identifying preharvest markers of lettuce postharvest shelf life. We evaluated leaf morphological characteristics for each of the three cultivars. To assess molecular indicators of shelf life, we used an RNA sequencing approach to construct transcriptomic profiles of two of the cultivars, a short shelf life (SSL) breeding line 60184 and a long shelf life (LSL) cultivar ‘Okeechobee’ at maturity. We identified 552 upregulated and 315 downregulated differentially expressed (DE) genes between the genotypes. We found that 27 % of the DE lettuce genes had an Arabidopsis thaliana ortholog characterized as senescence-associated, indicating that variable expression of senescence-associated genes (SAGs) could serve as a tool for preharvest markers of postharvest shelf life. Notably, we identified several SAGs and functional groupings with highly differential expression between the cultivars. This includes several jasmonate ZIM-domain (JAZ), jasmonic acid (JA) signaling genes, chlorophyll a-b binding (CAB) chloroplast-associated genes, and cell wall modification genes including pectate lyases (PL) and expansins (EXP). This study presented an innovative approach for identifying molecular markers for preharvest factors linked to postharvest traits for prolonged shelf. These genes could potentially be developed further as preharvest predictors of shelf life for lettuce breeding
2024-02-27 | GSE226302 | GEO
Project description:Bolting is a key process in the growth and development of lettuce (Lactuca sativa L.). High temperature can induce earlier bolting which decreases in both quality and production of lettuce. However, knowledge underlying lettuce bolting is still lacking. To better understand the molecular basis of bolting, a comparative proteomics analysis was conducted on lettuce stems in the bolting period induced by high temperature (33 °C) compared with a control (20 °C) using iTRAQ-based proteomics, phenotypic measures, and biological verifications. High temperature induced lettuce bolting, while control temperature did not. Of the 6656 proteins identified, 758 proteins significantly altered their expression level induced by high-temperature relative to the control, of which 409 were up-regulated and 349 down-regulated. Proteins with abundance level change were mainly involved in photosynthesis, carbohydrate metabolism, stress response, hormone synthesis, and signal transduction. These differential proteins were mainly enriched in pathways associated with photosynthesis and tryptophan metabolism involving in auxin (IAA) biosynthesis. Among the differentially expressed proteins associated with photosynthesis and tryptophan metabolism were up-regulated. Moreover, in gibberellin (GA) biosynthesis pathway, 10 of main enzymes of P450 were up-regulated. Proteins related to SAUR and GRP, implicated in IAA and GA signal transduction were up-regulated, and the phosphorylation and ubiquitination related proteins regulating IAA and GA signal transduction were also induced. These findings indicate that a high temperature enhances the function of photosynthesis, IAA and GA synthesis and signal transduction to promote the process of bolting, which is in line with the physiology and transcription levels of IAA and GA metabolism. Our data provide a first comprehensive dataset for gaining novel understanding of the molecular basis underlying lettuce bolting induced by high temperature. It is potentially important for further functional analysis and genetic manipulation for molecular breeding to breed new cultivar of lettuce to restrain early bolting, which is vital for improving vegetable quality.
2019-11-12 | PXD008610 | Pride
Project description:Baby leaves of lettuce (Lactuca sativa L.) are widely used to produce ready-to-eat salads all around the year. For this purpose, lettuce plants are cultivated under plastic tunnels and harvested at a very early growth stage, between 30-45 days after sowing depending on the season, cultivar and site of cultivation. Usually, the plastic film covering the cultivation tunnels transmits only a very small amount of the solar UVB radiation and partially attenuates UVA radiation. We used UV treatment post-harvest of fresh-cut lettuce baby leaves to compare the efficiency of two UV emission wavebands centred at 306 and 366 nm (achieved by employing narrow-band UV LEDs sources) to identify putative transcriptomic signatures. The analyses have been carried out supported by and in the frame of Project @CNR 2021, Title "EnhAncement of Natural anTIviral Compounds in ready- to-eat Vegetables", Acronym: ANTI-CoV to Dr. G. Agati. IDP-NAHEP, ICAR, Govt of India to A.R.B.
2025-07-04 | GSE292446 | GEO
Project description:Lettuce is a widely consumed leafy vegetable, valued for its nutritional benefits and culinary versatility. Various breeding initiatives have yielded lettuce varieties such as romaine or cos lettuce (Lactuca sativa var. longifolia), characterized by pigmented germplasm and enhanced tolerance to elevated temperatures. Despite its significance, a notable need exists for targeted study investigations into its chemical composition. Thus, this study aims to define the volatile and non-volatile components of the red romaine Thurinus RZ lettuce cultivar using LC-MS and GC-MS analysis. For LC-MS analysis, a C18 column will be accompanied by gradient elution using (A) water and (B) acetonitrile, each containing 0.1% formic acid as the mobile phase. For GC-MS analysis, the HP-5 column will be accompanied by Helium as the carrier gas. The molecules determined will then be ionized, and fragments will be interpreted and annotated using the mass-to-charge (m/z) ratio, which will further be tabulated.
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Project description:Lactuca sativa var. crispa cultivar:crispa Genome sequencing
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Project description:Lactuca sativa var. crispa cultivar:crispa Genome sequencing
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Project description:Transcriptome data of lettuce under LED periodic dark-pulse light condition in closed-type plant factory
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Project description:The draft genome of L. sativa (lettuce) cv. Tizian was sequenced in two Illumina sequencing runs, mate pair and shotgun. This entry contains the RAW sequencing data.
2018-02-09 | E-MTAB-6347 | biostudies-arrayexpress