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https://www.readbyqxmd.com/read/28090692/a-high-resolution-reference-genetic-map-positioning-8-8k-genes-for-the-conifer-white-spruce-structural-genomics-implications-and-correspondence-with-physical-distance
#1
Nathalie Pavy, Manuel Lamothe, Betty Pelgas, France Gagnon, Inanç Birol, Joerg Bohlmann, John Mackay, Nathalie Isabel, Jean Bousquet
Over the last decade, extensive genetic and genomic resources have been developed for the conifer white spruce (Picea glauca, Pinaceae), which has one of the largest plant genomes (20 Gbp). Draft genome sequences of white spruce and other conifers have recently been produced, but dense genetic maps are needed to comprehend genome macrostructure, delineate regions involved in quantitative traits, complement functional genomic investigations, and assist the assembly of fragmented genomic sequences. A greatly expanded P...
January 15, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28090408/development-of-microsatellite-markers-for-viscum-coloratum-santalaceae-and-their-application-to-wild-populations
#2
Bo-Yun Kim, Han-Sol Park, Soonok Kim, Young-Dong Kim
PREMISE OF THE STUDY: Microsatellite primers were developed for Viscum coloratum (Santalaceae), a semiparasitic medicinal plant that is known for its anticancer properties. Due to excessive human harvesting and loss of suitable habitat of its populations, it has become a potentially threatened species requiring immediate conservation efforts. METHODS AND RESULTS: Based on transcriptome data for V. coloratum, 124 primer pairs were randomly selected for initial validation, of which 19 yielded polymorphic microsatellite loci, with two to six alleles per locus...
January 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28089951/bzr1-positively-regulates-freezing-tolerance-via-cbf-dependent-and-cbf-independent-pathways-in-arabidopsis
#3
Hui Li, Keyi Ye, Yiting Shi, Jinkui Cheng, Xiaoyan Zhang, Shuhua Yang
Cold stress is a major environmental factor that adversely affects plant growth and development. The C-repeat Binding Factor/DRE Binding Factor 1 (CBF/DREB1) transcriptional regulatory cascade has been shown to play important roles in plant response to cold. Here we demonstrate that two key components of BR signaling modulate freezing tolerance of plants. The loss-of-function mutant of the GSK3-like kinases involved in BR signaling, bin2-3 bil1 bil2, showed increased freezing tolerance, whereas overexpression of BIN2 resulted in hypersensitivity to freezing stress under both non-acclimated and acclimated conditions...
January 13, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28088182/overexpression-of-wheat-ferritin-gene-tafer-5b-enhances-tolerance-to-heat-stress-and-other-abiotic-stresses-associated-with-the-ros-scavenging
#4
Xinshan Zang, Xiaoli Geng, Fei Wang, Zhenshan Liu, Liyuan Zhang, Yue Zhao, Xuejun Tian, Zhongfu Ni, Yingyin Yao, Mingming Xin, Zhaorong Hu, Qixin Sun, Huiru Peng
BACKGROUND: The yield of wheat (Triticum aestivum L.), an important crop, is adversely affected by heat stress in many regions of the world. However, the molecular mechanisms underlying thermotolerance are largely unknown. RESULTS: A novel ferritin gene, TaFER, was identified from our previous heat stress-responsive transcriptome analysis of a heat-tolerant wheat cultivar (TAM107). TaFER was mapped to chromosome 5B and named TaFER-5B. Expression pattern analysis revealed that TaFER-5B was induced by heat, polyethylene glycol (PEG), H2O2 and Fe-ethylenediaminedi(o-hydroxyphenylacetic) acid (Fe-EDDHA)...
January 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28086860/nicotiana-attenuata-data-hub-nadh-an-integrative-platform-for-exploring-genomic-transcriptomic-and-metabolomic-data-in-wild-tobacco
#5
Thomas Brockmöller, Zhihao Ling, Dapeng Li, Emmanuel Gaquerel, Ian T Baldwin, Shuqing Xu
BACKGROUND: Nicotiana attenuata (coyote tobacco) is an ecological model for studying plant-environment interactions and plant gene function under real-world conditions. During the last decade, large amounts of genomic, transcriptomic and metabolomic data have been generated with this plant which has provided new insights into how native plants interact with herbivores, pollinators and microbes. However, an integrative and open access platform that allows for the efficient mining of these -omics data remained unavailable until now...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28086783/de-novo-transcriptome-analysis-of-rose-scented-geranium-provides-insights-into-the-metabolic-specificity-of-terpene-and-tartaric-acid-biosynthesis
#6
Lokesh K Narnoliya, Girija Kaushal, Sudhir P Singh, Rajender S Sangwan
BACKGROUND: Rose-scented geranium (Pelargonium sp.) is a perennial herb that produces a high value essential oil of fragrant significance due to the characteristic compositional blend of rose-oxide and acyclic monoterpenoids in foliage. Recently, the plant has also been shown to produce tartaric acid in leaf tissues. Rose-scented geranium represents top-tier cash crop in terms of economic returns and significance of the plant and plant products. However, there has hardly been any study on its metabolism and functional genomics, nor any genomic expression dataset resource is available in public domain...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28081283/transcriptome-analysis-of-peach-prunus-persica-l-batsch-during-the-late-stage-of-fruit-ripening
#7
H F Pan, Y Sheng, Z H Gao, H L Chen, Y J Qi, X K Yi, G H Qin, J Y Zhang
Fruit ripening is a complex developmental process, the details of which remain largely unknown in fleshy fruits. In this paper, the fruit flesh of two peach varieties, "Zhongyou9" (a nectarine; Prunus persica L. Batsch) and its mutant "Hongyu", was analyzed by RNA-seq technology during two stages of ripening at 20-day intervals. One hundred and eighty significant upregulated and two hundred and thirty-five downregulated genes were identified in the experiment. Many of these genes were related to plant hormones, chlorophyll breakdown, accumulation of aroma and flavor volatiles, and stress...
December 23, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28081213/transcriptome-profiling-to-understand-the-effect-of-citrus-rootstocks-on-the-growth-of-shatangju-mandarin
#8
Xiang-Yu Liu, Juan Li, Meng-Meng Liu, Qing Yao, Jie-Zhong Chen
To obtain insight into potential mechanisms underlying the influence of rootstock on scion growth, we performed a comparative analysis of 'Shatangju' mandarin grafted onto 5 rootstocks: Fragrant orange (Citrus junons Sieb. ex. Tanaka), Red tangerine (Citrus reticulata Blanco), 'Shatangju' mandarin (Citrus reticulata Blanco), Rough lemon (Citrus jambhiri Lush) and Canton lemon (Citrus limonia Osbeck). The tree size of 'Shatangju' mandarin grafted onto Canton lemon and Rough lemon were the largest, followed by self-rooted rootstock trees, and the lowest tree sizes correspond to ones grafted on Red tangerine and Fragrant orange rootstocks...
2017: PloS One
https://www.readbyqxmd.com/read/28081189/global-gene-expression-analysis-of-cross-protected-phenotype-of-pectobacterium-atrosepticum
#9
Vladimir Gorshkov, Stanford Kwenda, Olga Petrova, Elena Osipova, Yuri Gogolev, Lucy N Moleleki
The ability to adapt to adverse conditions permits many bacterial species to be virtually ubiquitous and survive in a variety of ecological niches. This ability is of particular importance for many plant pathogenic bacteria that should be able to exist, except for their host plants, in different environments e.g. soil, water, insect-vectors etc. Under some of these conditions, bacteria encounter absence of nutrients and persist, acquiring new properties related to resistance to a variety of stress factors (cross-protection)...
2017: PloS One
https://www.readbyqxmd.com/read/28081140/bnlate-a-cys2-his2-type-zinc-finger-protein-enhances-silique-shattering-resistance-by-negatively-regulating-lignin-accumulation-in-the-silique-walls-of-brassica-napus
#10
Zhangsheng Tao, Yi Huang, Lida Zhang, Xinfa Wang, Guihua Liu, Hanzhong Wang
Silique shattering resistance is one of the most important agricultural traits in oil crop breeding. Seed shedding from siliques prior to and during harvest causes devastating losses in oilseed yield. Lignin biosynthesis in the silique walls is thought to affect silique-shattering resistance in oil crops. Here, we identified and characterized B. napus LATE FLOWERING (BnLATE), which encodes a Cys2/His2-type zinc-finger protein. Heterologous expression of BnLATE under the double enhanced CaMV 35S promoter (D35S) in wild-type Arabidopsis plants resulted in a marked decrease in lignification in the replum, valve layer (carpel) and dehiscence zone...
2017: PloS One
https://www.readbyqxmd.com/read/28078730/a-fern-aintegumenta-gene-mirrors-baby-boom-in-promoting-apogamy-in-ceratopteris-richardii
#11
Linh T Bui, Dzevida Pandzic, Christopher E Youngstrom, Simon Wallace, Erin E Irish, Péter Szövényi, Chi-Lien Cheng
Asexual reproduction is widespread in land plants, including ferns where 10% of all species are obligate asexuals. In these ferns, apogamous sporophytes are generated directly from gametophytes, bypassing fertilization. In the model fern Ceratopteris richardii, a sexual species, apogamy can be induced by culture on high sugar media. BABY BOOM (BBM) genes in angiosperms are known to promote somatic embryogenesis, which like apogamy produce sporophytes without fertilization. Here, a Brassica napus BBM (BnBBM) was used to investigate genetic similarity between apogamy in ferns and somatic embryogenesis in angiosperms...
January 12, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28076886/the-ectomycorrhizal-basidiomycete-hebeloma-cylindrosporum-undergoes-early-waves-of-transcriptional-reprogramming-prior-to-symbiotic-structures-differentiation
#12
Jeanne Doré, Annegret Kohler, Audrey Dubost, Hope Hundley, Vasanth Singan, Yi Peng, Alan Kuo, Igor V Grigoriev, Francis Martin, Roland Marmeisse, And Gilles Gay
To clarify the early molecular interaction between ectomycorrhizal partners, we performed a RNA-Seq study of transcriptome reprogramming of the basidiomycete Hebeloma cylindrosporum before symbiotic structure differentiation with Pinus pinaster. Mycorrhiza transcriptome was studied for comparison. By reference to asymbiotic mycelium, 47 and 46 genes were specifically up-regulated over five-fold (p≤0.05) upon rhizosphere colonization and root adhesion respectively. Other 45 were up-regulated throughout the symbiotic interaction, from rhizosphere colonization to differentiated mycorrhizas, whereas 274 were specifically up-regulated in mycorrhizas...
January 11, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28073541/the-main-nitrate-transporter-of-the-dinoflagellate-lingulodinium-polyedrum-is-constitutively-expressed-and-not-responsible-for-daily-variations-in-nitrate-uptake-rates
#13
Steve Dagenais Bellefeuille, David Morse
Dinoflagellates are unicellular eukaryotes capable of forming spectacular harmful algal blooms (HABs). Eutrophication of coastal waters by fertilizer runoff, nitrate in particular, has contributed to recent increases in the frequency, magnitude and geographic extent of HABs. Although physiological nitrate uptake and assimilation in dinoflagellates have often been measured in the field and in the laboratory, no molecular components involved in nitrate transport have yet been reported. This study reports the first identification and characterization of dinoflagellate nitrate transporters, found in the transcriptome of the bloom-forming Lingulodinium polyedrum...
May 2016: Harmful Algae
https://www.readbyqxmd.com/read/28071978/nup82-functions-redundantly-with-nup136-in-a-salicylic-acid-dependent-defense-response-of-arabidopsis-thaliana
#14
Kentaro Tamura, Yoichiro Fukao, Noriyuki Hatsugai, Fumiaki Katagiri, Ikuko Hara-Nishimura
The nuclear pore complex (NPC) comprises more than 30 nucleoporins (Nups). NPC mediates macromolecular trafficking between the nucleoplasm and the cytoplasm, but specific roles of individual Nups are poorly understood in higher plants. Here, we show that the novel nucleoporin unique to angiosperm plants (designated as Nup82) functions in a salicylic acid-dependent defense in a redundant manner with Nup136, which is a component of the nuclear basket in the NPC. Arabidopsis thaliana Nup82 had a similar amino acid sequence to the N-terminal half of Nup136 and a Nup82-GFP fusion was localized on the nuclear envelope...
January 10, 2017: Nucleus
https://www.readbyqxmd.com/read/28070488/transcriptome-profiling-of-elettaria-cardamomum-l-maton-small-cardamom
#15
F Nadiya, N Anjali, Jinu Thomas, A Gangaprasad, K K Sabu
Elettaria cardamomum (L.) Maton, known as 'queen of spices, is a perennial herbaceous monocot of the family Zingiberaceae, native to southern India. Cardamom is an economically valuable spice crop and used widely in culinary and medicinal purposes. In the present study, using Ion Proton RNA sequencing technology, we performed transcriptome sequencing and de novo transcriptome assembly of a wild and five cultivar genotypes of cardamom. RNA-seq generated a total of 22,811,983 (92 base) and 24,889,197 (75 base) raw reads accounting for approximately 8...
March 2017: Genomics Data
https://www.readbyqxmd.com/read/28068903/comparative-transcriptome-analysis-reveals-candidate-genes-for-the-biosynthesis-of-natural-insecticide-in-tanacetum-cinerariifolium
#16
Sana Khan, Swati Upadhyay, Feroz Khan, Sudeep Tandon, Rakesh Kumar Shukla, Sumit Ghosh, Vikrant Gupta, Suchitra Banerjee, Laiq Ur Rahman
BACKGROUND: Pyrethrins are monoterpenoids and consist of either a chrysanthemic acid or pyrethric acid with a rethrolone moiety. Natural pyrethrins are safe and eco-friendly while possessing strong insecticidal properties. Despite such advantages of commercial value coming with the eco-friendly tag, most enzymes/genes involved in the pyrethrin biosynthesis pathway remain unidentified and uncharacterized. Since the flowers of Tanacetum cinerariifolium are rich in major pyrethrins, next generation transcriptome sequencing was undertaken to compare the flowers and the leaves of the plant de novo to identify differentially expressed transcripts and ascertain which among them might be involved in and responsible for the differential accumulation of pyrethrins in T...
January 9, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28064246/the-arabidopsis-n-acetylornithine-deacetylase-controls-ornithine-biosynthesis-via-a-linear-pathway-with-downstream-effects-on-polyamine-levels
#17
Barbara Molesini, Serena Zanzoni, Giuseppe Mennella, Gianluca Francese, Alessia Losa, Giuseppe L Rotino, Tiziana Pandolfini
Arabidopsis thaliana At4g17830 codes for a protein showing sequence similarity with the Escherichia coli N-acetylornithine deacetylase (EcArgE), an enzyme implicated in the linear ornithine (Orn) biosynthetic pathway. In plants, N-acetylornithine deacetylase (NAOD) activity has yet to be demonstrated; however, At4g17830-silenced and mutant (atnaod) plants display an impaired reproductive phenotype and altered foliar levels of Orn and polyamines (PAs). Here, we showed the direct connection between At4g17830 function and Orn biosynthesis, demonstrating biochemically that At4g17830 codes for a NAOD...
November 15, 2016: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28062751/transcriptome-wide-mapping-of-rna-5-methylcytosine-in-arabidopsis-mrnas-and-non-coding-rnas
#18
Rakesh David, Alice Burgess, Brian Parker, Jun Li, Kalinya Pulsford, Tennille Sibbritt, Thomas Preiss, Iain R Searle
Post-transcriptional methylation of RNA cytosine residues to 5-methylcytosine (m5C) is an important modification with diverse roles, such as regulating stress responses, stem cell proliferation, and RNA metabolism. Here, we used RNA bisulfite sequencing (bsRNA-seq) for transcriptome-wide quantitative mapping of m5C in the model plant, Arabidopsis thaliana. We discovered more than a thousand m5C sites in Arabidopsis mRNAs, long non-coding RNAs, and other non-coding RNAs across three tissue types (siliques, seedling shoots, and roots) and validated a number of these sites...
January 6, 2017: Plant Cell
https://www.readbyqxmd.com/read/28062412/plant-genome-and-transcriptome-annotations-from-misconceptions-to-simple-solutions
#19
Marie E Bolger, Borjana Arsova, Björn Usadel
Next-generation sequencing has triggered an explosion of available genomic and transcriptomic resources in the plant sciences. Although genome and transcriptome sequencing has become orders of magnitudes cheaper and more efficient, often the functional annotation process is lagging behind. This might be hampered by the lack of a comprehensive enumeration of simple-to-use tools available to the plant researcher. In this comprehensive review, we present (i) typical ontologies to be used in the plant sciences, (ii) useful databases and resources used for functional annotation, (iii) what to expect from an annotated plant genome, (iv) an automated annotation pipeline and (v) a recipe and reference chart outlining typical steps used to annotate plant genomes/transcriptomes using publicly available resources...
January 5, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28061745/large-scale-transcriptome-comparison-of-sunflower-genes-responsive-to-verticillium-dahliae
#20
Shuchun Guo, Yongchun Zuo, Yanfang Zhang, Chengyan Wu, Wenxia Su, Wen Jin, Haifeng Yu, Yulin An, Qianzhong Li
BACKGROUND: Sunflower Verticillium wilt (SVW) is a vascular disease caused by root infection with Verticillium dahliae (V. dahlia). It is a serious threat to the yield and quality of sunflower. However, chemical and agronomic measures for controlling this disease are not effective. The selection of more resistant genotypes is a desirable strategy to reduce contamination. A deeper knowledge of the molecular mechanisms and genetic basis underlying sunflower Verticillium wilt is necessary to accelerate breeding progress...
January 6, 2017: BMC Genomics
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