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https://www.readbyqxmd.com/read/28431521/a-reference-floral-transcriptome-of-sexual-and-apomictic-paspalum-notatum
#1
Juan Pablo A Ortiz, Santiago Revale, Lorena A Siena, Maricel Podio, Luciana Delgado, Juliana Stein, Olivier Leblanc, Silvina C Pessino
BACKGROUND: Paspalum notatum Flügge is a subtropical grass native to South America, which includes sexual diploid and apomictic polyploid biotypes. In the past decade, a number of apomixis-associated genes were discovered in this species through genetic mapping and differential expression surveys. However, the scarce information on Paspalum sequences available in public databanks limited annotations and functional predictions for these candidates. RESULTS: We used a long-read 454/Roche FLX+ sequencing strategy to produce robust reference transcriptome datasets from florets of sexual and apomictic Paspalum notatum genotypes and delivered a list of transcripts showing differential representation in both reproductive types...
April 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28431510/delayed-response-to-cold-stress-is-characterized-by-successive-metabolic-shifts-culminating-in-apple-fruit-peel-necrosis
#2
Nigel E Gapper, Maarten L A T M Hertog, Jinwook Lee, David A Buchanan, Rachel S Leisso, Zhangjun Fei, Guiqin Qu, James J Giovannoni, Jason W Johnston, Robert J Schaffer, Bart M Nicolaï, James P Mattheis, Christopher B Watkins, David R Rudell
BACKGROUND: Superficial scald is a physiological disorder of apple fruit characterized by sunken, necrotic lesions appearing after prolonged cold storage, although initial injury occurs much earlier in the storage period. To determine the degree to which the transition to cell death is an active process and specific metabolism involved, untargeted metabolic and transcriptomic profiling was used to follow metabolism of peel tissue over 180 d of cold storage. RESULTS: The metabolome and transcriptome of peel destined to develop scald began to diverge from peel where scald was controlled using antioxidant (diphenylamine; DPA) or rendered insensitive to ethylene using 1-methylcyclopropene (1-MCP) beginning between 30 and 60 days of storage...
April 21, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28431015/large-scale-collection-of-full-length-cdna-and-transcriptome-analysis-in-hevea-brasiliensis
#3
Yuko Makita, Kiaw Kiaw Ng, G Veera Singham, Mika Kawashima, Hideki Hirakawa, Shusei Sato, Ahmad Sofiman Othman, Minami Matsui
Natural rubber has unique physical properties that cannot be replaced by products from other latex-producing plants or petrochemically produced synthetic rubbers. Rubber from Hevea brasiliensis is the main commercial source for this natural rubber that has a cis-polyisoprene configuration. For sustainable production of enough rubber to meet demand elucidation of the molecular mechanisms involved in the production of latex is vital. To this end, we firstly constructed rubber full-length cDNA libraries of RRIM 600 cultivar and sequenced around 20,000 clones by the Sanger method and over 15,000 contigs by Illumina sequencer...
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28429252/analysis-of-global-gene-expression-profiles-during-the-flowering-initiation-process-of-lilium%C3%A2-%C3%A3-%C3%A2-formolongi
#4
Yu-Fan Li, Ming-Fang Zhang, Meng Zhang, Gui-Xia Jia
The onset of flowering is critical for the reproductive development of plants. Lilium × formolongi is a lily hybrid that flowers within a year after sowing. We successfully identified four important stages during vegetative growth and flowering initiation of L. × formolongi under long day conditions. The plant tissues from the four stages were used in a genome-wide transcriptional analysis to investigate stage-specific changes of gene expression in L. × formolongi. In total, the sequence reads of the four RNA-sequencing libraries were assembled into 52,824 unigenes, of which 37,031 (70...
April 20, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28428797/silicon-regulates-antioxidant-activities-of-crop-plants-under-abiotic-induced-oxidative-stress-a-review
#5
REVIEW
Yoon-Ha Kim, Abdul L Khan, Muhammad Waqas, In-Jung Lee
Silicon (Si) is the second most abundant element in soil, where its availability to plants can exhilarate to 10% of total dry weight of the plant. Si accumulation/transport occurs in the upward direction, and has been identified in several crop plants. Si application has been known to ameliorate plant growth and development during normal and stressful conditions over past two-decades. During abiotic (salinity, drought, thermal, and heavy metal etc) stress, one of the immediate responses by plant is the generation of reactive oxygen species (ROS), such as singlet oxygen ((1)O2), superoxide ([Formula: see text]), hydrogen peroxide (H2O2), and hydroxyl radicals (OH), which cause severe damage to the cell structure, organelles, and functions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28428793/transcriptomics-targeted-metabolomics-and-gene-expression-of-blackberry-leaves-and-fruits-indicate-flavonoid-metabolic-flux-from-leaf-to-red-fruit
#6
Enrique Gutierrez, Ana García-Villaraco, José A Lucas, Ana Gradillas, F Javier Gutierrez-Mañero, Beatriz Ramos-Solano
Blackberries (Rubus spp.) are among the high added value food products relevant for human health due to the increasing evidence of the beneficial effects of polyphenols, which are very abundant in these fruits. Interestingly, these compounds also play a role on plant physiology, being especially relevant their role in plant defense against biotic and abiotic stress. Hence, we hypothesize that since blackberry fruits have high amounts of flavonols and anthocyanins, leaves would also have high amounts of these compounds, and can be studied as a source of active molecules; furthermore, leaf synthesis would support their high contents in fruits...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28428792/identification-of-candidate-genes-and-biosynthesis-pathways-related-to-fertility-conversion-by-wheat-ktm3315a-transcriptome-profiling
#7
Jiali Ye, Yang Duan, Gan Hu, Xingxia Geng, Gaoming Zhang, Pengjiao Yan, Zihan Liu, Lingli Zhang, Xiyue Song
The Aegilops kotschyi thermo-sensitive cytoplasmic male sterility (K-TCMS) system may facilitate hybrid wheat (Triticum aestivum L.) seed multiplication and production. The K-TCMS line is completely male sterile during the normal wheat-growing season, whereas its fertility can be restored in a high-temperature environment. To elucidate the molecular mechanisms responsible for male sterility/fertility conversion and candidate genes involved with pollen development in K-TCMS, we employed RNA-seq to sequence the transcriptomes of anthers from K-TCMS line KTM3315A during development under sterile and fertile conditions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424966/transcriptomic-analysis-of-molecular-responses-in-malus-domestica-m26-roots-affected-by-apple-replant-disease
#8
Stefan Weiß, Melanie Bartsch, Traud Winkelmann
Gene expression studies in roots of apple replant disease affected plants suggested defense reactions towards biotic stress to occur which did not lead to adequate responses to the biotic stressors. Apple replant disease (ARD) leads to growth inhibition and fruit yield reduction in replanted populations and results in economic losses for tree nurseries and fruit producers. The etiology is not well understood on a molecular level and causal agents show a great diversity indicating that no definitive cause, which applies to the majority of cases, has been found out yet...
April 19, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28424712/a-functional-approach-towards-understanding-the-role-of-the-mitochondrial-respiratory-chain-in-an-endomycorrhizal-symbiosis
#9
Louis Mercy, Eva Lucic-Mercy, Amaia Nogales, Areg Poghosyan, Carolin Schneider, Birgit Arnholdt-Schmitt
Arbuscular mycorrhizal fungi (AMF) are crucial components of fertile soils, able to provide several ecosystem services for crop production. Current economic, social and legislative contexts should drive the so-called "second green revolution" by better exploiting these beneficial microorganisms. Many challenges still need to be overcome to better understand the mycorrhizal symbiosis, among which (i) the biotrophic nature of AMF, constraining their production, while (ii) phosphate acts as a limiting factor for the optimal mycorrhizal inoculum application and effectiveness...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424511/response-of-peanut-arachis-hypogaea-roots-to-the-presence-of-beneficial-and-pathogenic-fungi-by-transcriptome-analysis
#10
Kun Hao, Feng Wang, Xiangqun Nong, Mark Richard McNeill, Shaofang Liu, Guangjun Wang, Guangchun Cao, Zehua Zhang
Entomopathogenic fungus Metarhizium anisopliae obtain survival benefit meanwhile promote the nutrient absorption of root as an endophyte. However, little is known concerning molecular mechanisms in the process. We performed the transcriptome sequencing of A. hypogaea roots inoculated M. anisopliae and pathogenic Fusarium axysporum, respectively. There were 81323 unigenes from 132023 transcripts. Total 203 differentially expressed genes (DEGs) respond to the two fungi, including specific 76 and 34 DEGs distributed respectively in M...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424372/effects-of-drought-stress-on-global-gene-expression-profile-in-leaf-and-root-samples-of-dongxiang-wild-rice-oryza-rufipogon
#11
Fantao Zhang, Yi Zhou, Meng Zhang, Xiangdong Luo, Jiankun Xie
Drought is a serious constraint to rice production throughout the world, and although Dongxiang wild rice ( Oryza rufipogon , DXWR) possesses a high degree of drought resistance, the underlying mechanisms of this trait remains unclear. In the present study, cDNA libraries were constructed from the leaf and root tissues of drought-stressed and untreated DXWR seedlings, and transcriptome sequencing was performed with the goal of elucidating the molecular mechanisms involved in drought stress response. The results indicated that 11,231 transcripts were differentially expressed in the leaves (4,040 up-regulated and 7,191 down-regulated) and 7,025 transcripts were differentially expressed in the roots (3,097 up-regulated and 3,928 down-regulated)...
April 19, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28424098/identification-of-odorant-binding-protein-genes-in-galeruca-daurica-coleoptera-chrysomelidae-and-analysis-of-their-expression-profiles
#12
L Li, Y-T Zhou, Y Tan, X-R Zhou, B-P Pang
Odorant-binding proteins (OBPs) play a fundamental role in insect olfaction. In recent years, Galeruca daurica (Joannis) (Coleoptera: Chrysomelidae) has become one of the most important insect pests in the Inner Mongolian grasslands of China. This pest only feeds on the species of Allium plants, implying the central role of olfaction in its search for specific host plants. However, the olfaction-related proteins have not been investigated in this beetle. In this study, we identified 29 putative OBP genes, namely GdauOBP1-29, from the transcriptome database of G...
April 20, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28423944/emerging-roles-of-long-non-coding-rnas-in-plant-response-to-biotic-and-abiotic-stresses
#13
Naghmeh Nejat, Nitin Mantri
Spectacular progress in high-throughput transcriptome sequencing and expression profiling using next-generation sequencing technologies have recently revolutionized molecular biology and allowed massive advances in identifying the genomic regions and molecular mechanisms underlying transcriptional regulation of growth, development, and stress response. Through recent research, non-coding RNAs, in particular long non-coding RNAs, have emerged as key regulators of transcription in eukaryotes. Long non-coding RNAs are vastly heterogeneous groups of RNAs that execute a broad range of essential roles in various biological processes at the epigenetic, transcriptional, and post-transcriptional levels...
April 20, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28423006/transcriptome-and-proteome-responses-in-rnalater-preserved-tissue-of-arabidopsis-thaliana
#14
Colin P S Kruse, Proma Basu, Darron R Luesse, Sarah E Wyatt
Tissue preservation is a minimal requirement for the success of plant RNA and protein expression studies. The standard of snap-freezing in liquid nitrogen is not always practical or possible. RNAlater, a concentrated solution of ammonium and cesium sulfates, has become a standard preservative in the absence of liquid nitrogen. Here, we demonstrate the effectiveness of RNAlater in preserving both RNA and proteins in Arabidopsis thaliana tissues for use in RNAseq and LC-MS/MS analysis of proteins. While successful in preserving plant material, a transcriptomic and proteomic response is evident...
2017: PloS One
https://www.readbyqxmd.com/read/28422496/the-combined-use-of-proteomics-and-transcriptomics-reveals-a-complex-secondary-metabolite-network-in-peperomia-obtusifolia
#15
Andrea N L Batista, José Roberto A Dos Santos-Pinto, João M Batista, Tatiana M Souza-Moreira, Mariana M Santoni, Cleslei F Zanelli, Massuo J Kato, Silvia N López, Mario S Palma, Maysa Furlan
Peperomia obtusifolia, an ornamental plant from the Piperaceae family, accumulates a series of secondary metabolites with interesting biological properties. From a biosynthesis standpoint, this species produces several benzopyrans derived from orsellinic acid, which is a polyketide typically found in fungi. Additionally, the chiral benzopyrans were reported as racemic and/or as diastereomeric mixtures, which raises questions about the level of enzymatic control in the cyclization step for the formation of the 3,4-dihydro-2H-pyran moiety...
April 19, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28421378/transcriptome-based-identification-of-the-desiccation-response-genes-in-marine-red-algae-pyropia-tenera-rhodophyta-and-enhancement-of-abiotic-stress-tolerance-by-ptdrg2-in-chlamydomonas
#16
Sungoh Im, Ha-Nul Lee, Hyun Shin Jung, Sunghwan Yang, Eun-Jeong Park, Mi Sook Hwang, Won-Joong Jeong, Dong-Woog Choi
Pyropia tenera (Kjellman) are marine red algae that grow in the intertidal zone and lose more than 90% of water during hibernal low tides every day. In order to identify the desiccation response gene (DRG) in P. tenera, we generated 1,444,210 transcriptome sequences using the 454-FLX platform from the gametophyte under control and desiccation conditions. De novo assembly of the transcriptome reads generated 13,170 contigs, covering about 12 Mbp. We selected 1160 differentially expressed genes (DEGs) in response to desiccation stress based on reads per kilobase per million reads (RPKM) expression values...
April 18, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28421098/fine-mapping-the-branching-habit-trait-in-cultivated-peanut-by-combining-bulked-segregant-analysis-and-high-throughput-sequencing
#17
Galya Kayam, Yael Brand, Adi Faigenboim-Doron, Abhinandan Patil, Ilan Hedvat, Ran Hovav
The growth habit of lateral shoots (also termed "branching habit") is an important descriptive and agronomic character of peanut. Yet, both the inheritance of branching habit and the genetic mechanism that controls it in this crop remain unclear. In addition, the low degree of polymorphism among cultivated peanut varieties hinders fine-mapping of this and other traits in non-homozygous genetic structures. Here, we combined high-throughput sequencing with a well-defined genetic system to study these issues in peanut...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28420173/transcriptome-sequencing-of-dianthus-spiculifolius-and-analysis-of-the-genes-involved-in-responses-to-combined-cold-and-drought-stress
#18
Aimin Zhou, Hongping Ma, Enhui Liu, Tongtong Jiang, Shuang Feng, Shufang Gong, Jingang Wang
Dianthus spiculifolius, a perennial herbaceous flower and a member of the Caryophyllaceae family, has strong resistance to cold and drought stresses. To explore the transcriptional responses of D. spiculifolius to individual and combined stresses, we performed transcriptome sequencing of seedlings under normal conditions or subjected to cold treatment (CT), simulated drought treatment (DT), or their combination (CTDT). After de novo assembly of the obtained reads, 112,015 unigenes were generated. Analysis of differentially expressed genes (DEGs) showed that 2026, 940, and 2346 genes were up-regulated and 1468, 707, and 1759 were down-regulated in CT, DT, and CTDT samples, respectively...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28419974/prediction-and-feature-analysis-of-intron-retention-events-in-plant-genome
#19
Ying Cui, Chao Zhang, Meng Cai
Alternative splicing (AS) is a major contributor to increase the potential informational content of eukaryotic genomes by creating multiple mRNA species and proteins from a single gene. In plants, up to 60% genes are alternatively spliced and the most common type of AS is intron retention (IR). Genomic analyses of IR have illuminated its crucial role in shaping the evolution of genomes, in the control of developmental processes, and in the dynamic regulation of the transcriptome to influence phenotype. To explore the relationship between the sequence feature and the formation mechanism of IR, we statistically analyzed the retained introns and proposed an improved random forest-based hybrid method to predict intron retention events in plant genome...
April 13, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28419137/transcriptional-changes-in-litchi-litchi-chinensis-sonn-inflorescences-treated-with-uniconazole
#20
Yongzan Wei, Chen Dong, Hongna Zhang, Xuewen Zheng, Bo Shu, Shengyou Shi, Weicai Li
In Arabidopsis, treating shoots with uniconazole can result in enhanced primary root elongation and bolting delay. Uniconazole spraying has become an important cultivation technique in controlling the flowering and improving the fruit-setting of litchi. However, the mechanism by which uniconazole regulates the complicated developmental processes in litchi remains unclear. This study aimed to determine which signal pathways and genes drive the responses of litchi inflorescences to uniconazole treatment. We monitored the transcriptional activity in inflorescences after uniconazole treatment by Illumina sequencing technology...
2017: PloS One
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