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https://www.readbyqxmd.com/read/29161754/the-sorghum-bicolor-reference-genome-improved-assembly-gene-annotations-a-transcriptome-atlas-and-signatures-of-genome-organization
#1
Ryan F McCormick, Sandra K Truong, Avinash Sreedasyam, Jerry Jenkins, Shengqiang Shu, David Sims, Megan Kennedy, Mojgan Amirebrahimi, Brock D Weers, Brian McKinley, Ashley Mattison, Daryl T Morishige, Jane Grimwood, Jeremy Schmutz, John E Mullet
Sorghum bicolor is a drought tolerant C4 grass used for production of grain, forage, sugar, and lignocellulosic biomass and a genetic model for C4 grasses due to its relatively small genome (~800 Mbp), diploid genetics, diverse germplasm, and colinearity with other C4 grass genomes. In this study, deep sequencing, genetic linkage analysis, and transcriptome data were used to produce and annotate a high-quality reference genome sequence. Reference genome sequence order was improved, 29.6 Mbp of additional sequence was incorporated, the number of genes annotated increased 24% to 34,211, average gene length and N50 increased, and error frequency was reduced 10-fold to 1 per 100 kbp...
November 21, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29161464/increased-efficiency-of-targeted-mutagenesis-by-crispr-cas9-in-plants-using-heat-stress
#2
Chantal Le Blanc, Fei Zhang, Josefina Mendez, Yamile Lozano, Krishna Chatpar, Vivian Irish, Yannick Jacob
The CRISPR/Cas9 system has greatly improved our ability to engineer targeted mutations in eukaryotic genomes. While CRISPR/Cas9 appears to work universally, the efficiency of targeted mutagenesis and the adverse generation of off-target mutations vary greatly between different organisms. In this study, we report that Arabidopsis plants subjected to heat stress at 37°C show much higher frequencies of CRISPR-induced mutations compared to plants grown continuously at the standard temperature (22°C). Using quantitative assays relying on GFP reporter genes, we found that targeted mutagenesis by CRISPR/Cas9 in Arabidopsis is increased by ~5-fold in somatic tissues and up to 100-fold in the germline upon heat treatment...
November 21, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29161428/arabidopsis-inositol-polyphosphate-multikinase-delays-flowering-time-through-mediating-transcriptional-activation-of-flowering-locus-c
#3
Sihong Sang, Yao Chen, Qiaofeng Yang, Peng Wang
Timely flowering is critical for successful reproduction and seed yield in plants. A diverse range of regulators have been found to control flowering time in response to environmental and endogenous signals. Among these regulators, FLOWERING LOCUS C (FLC) acts as a central repressor of floral transition by blocking the expression of flowering integrator genes. Here, we report that Arabidopsis inositol polyphosphate multikinase (AtIPK2β) functions in flowering time control by mediating transcriptional regulation of FLC at the chromatin level...
November 17, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29161311/expression-and-regulation-of-atl9-an-e3-ubiquitin-ligase-involved-in-plant-defense
#4
Fengyan Deng, Tingwei Guo, Mitchell Lefebvre, Steven Scaglione, Christopher J Antico, Tao Jing, Xin Yang, Weixing Shan, Katrina M Ramonell
Plants are continually exposed to a variety of pathogenic organisms, including bacteria, fungi and viruses. In response to these assaults, plants have developed various defense pathways to protect themselves from pathogen invasion. An understanding of the expression and regulation of genes involved in defense signaling is essential to controlling plant disease. ATL9, an Arabidopsis RING zinc finger protein, is an E3 ubiquitin ligase that is induced by chitin and involved in basal resistance to the biotrophic fungal pathogen, Golovinomyces cichoracearum (G...
2017: PloS One
https://www.readbyqxmd.com/read/29161206/a-hypersensitivity-like-response-to-meloidogyne-graminicola-in-rice-oryza-sativa-l
#5
Ngan Thi Phan, Dirk De Waele, Mathias Lorieux, Lizhong Xiong, Stephane Bellafiore
Meloidogyne graminicola (M. graminicola) is a major plant-parasitic nematode affecting rice cultivation in Asia. Resistance to this nematode was found in the African rice genotypes Oryza glaberrima and O. longistaminata, however, due to interspecific hybrid sterility, the introgression of resistance genes in the widely consumed O. sativa varieties remains challenging. Recently, resistance was found in O. sativa and here we report for the first time the histological and genetic characterization of the resistance to M...
November 21, 2017: Phytopathology
https://www.readbyqxmd.com/read/29160852/the-complete-chloroplast-genome-sequences-of-aconitum-pseudolaeve-and-aconitum-longecassidatum-and-development-of-molecular-markers-for-distinguishing-species-in-the-aconitum-subgenus-lycoctonum
#6
Inkyu Park, Sungyu Yang, Goya Choi, Wook Jin Kim, Byeong Cheol Moon
Aconitum pseudolaeve Nakai and Aconitum longecassidatum Nakai, which belong to the Aconitum subgenus Lycoctonum, are distributed in East Asia and Korea. Aconitum species are used in herbal medicine and contain highly toxic components, including aconitine. A. pseudolaeve, an endemic species of Korea, is a commercially valuable material that has been used in the manufacture of cosmetics and perfumes. Although Aconitum species are important plant resources, they have not been extensively studied, and genomic information is limited...
November 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29160794/ghmap3k65-a-cotton-raf-like-map3k-gene-enhances-susceptibility-to-pathogen-infection-and-heat-stress-by-negatively-modulating-growth-and-development-in-transgenic-nicotiana-benthamiana
#7
Na Zhai, Haihong Jia, Dongdong Liu, Shuchang Liu, Manli Ma, Xingqi Guo, Han Li
Mitogen-activated protein kinase kinase kinases (MAP3Ks), the top components of MAPK cascades, modulate many biological processes, such as growth, development and various environmental stresses. Nevertheless, the roles of MAP3Ks remain poorly understood in cotton. In this study, GhMAP3K65 was identified in cotton, and its transcription was inducible by pathogen infection, heat stress, and multiple signalling molecules. Silencing of GhMAP3K65 enhanced resistance to pathogen infection and heat stress in cotton...
November 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29160609/plant-arthropod-interactions-who-is-the-winner
#8
Elia Stahl, Olivier Hilfiker, Philippe Reymond
Herbivorous arthropods have interacted with plants for millions of years. During feeding they release chemical cues that allow plants to detect the attack and mount an efficient defense response. A signaling cascade triggers the expression of hundreds of genes, which encode defensive proteins and enzymes for synthesis of toxic metabolites. This direct defense is often complemented by emission of volatiles that attract beneficial parasitoids. In return, arthropods have evolved strategies to interfere with plant defenses, either by producing effectors to inhibit detection and downstream signaling steps, or by adapting to their detrimental effect...
November 21, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29160202/re-classification-of-clavibacter-michiganensis-subspecies-on-the-basis-of-whole-genome-and-multi-locus-sequence-analyses
#9
Xiang Li, James Tambong, Kat Xiaoli Yuan, Wen Chen, Huimin Xu, C André Lévesque, Solke H De Boer
Although the genus Clavibacter was originally proposed to accommodate all phytopathogenic coryneform bacteria containing B2γ diaminobutyrate in the peptidoglycan, reclassification of all but one species into other genera has resulted in the current monospecific status of the genus. The single species in the genus, Clavibacter michiganensis, has multiple subspecies, which are all highly host-specific plant pathogens. Whole genome analysis based on average nucleotide identity and digital DNA-DNA hybridization as well as multi-locus sequence analysis (MLSA) of seven housekeeping genes support raising each of the C...
November 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29159588/arabidopsis-thaliana-mlo-genes-are-expressed-in-discrete-domains-during-reproductive-development
#10
Thomas C Davis, Daniel S Jones, Arianna J Dino, Nicholas I Cejda, Jing Yuan, Andrew C Willoughby, Sharon A Kessler
MLOs in Plant Reproduction. The MILDEW RESISTANCE LOCUS-O (MLO) protein family, comprised of 15 members, plays roles in diverse cell-cell communication processes such as powdery mildew susceptibility, root thigmomorphogenesis, and pollen tube reception. The NORTIA (NTA, AtMLO7) gene is expressed in the synergid cells of the female gametophyte where it functions in intercellular communication with the pollen tube. Discrepancies between previously published promoter::GUS and promoter::gene-GUS constructs expression patterns led us to explore the regulation of NTA expression...
November 20, 2017: Plant Reproduction
https://www.readbyqxmd.com/read/29159222/data-on-metagenomic-profiles-of-activated-sludge-from-a-full-scale-wastewater-treatment-plant
#11
Jianhua Guo, Bing-Jie Ni, Xiaoyu Han, Xueming Chen, Philip Bond, Yongzhen Peng, Zhiguo Yuan
The data in this article mainly present the sequences of activated sludge from a full-scale municipal wastewater treatment plant (WWTP) carrying out simultaneous nitrogen and phosphorous removal in Beijing, China. Data include the operational conditions and performance, dominant microbes and taxonomic analysis in this WWTP, and function annotation results based on SEED, Clusters of Orthologous Groups (COG), and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. Sequencing data were generated by using Illumina HiSeq...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29159138/paternal-inheritance-of-plastid-encoded-transgenes-in-petunia-hybrida-in-the-greenhouse-and-under-field-conditions
#12
Patricia Horn, Henrik Nausch, Susanne Baars, Jörg Schmidtke, Kerstin Schmidt, Inge Broer
As already demonstrated in greenhouse trials, outcrossing of transgenic plants can be drastically reduced via transgene integration into the plastid. We verified this result in the field with Petunia, for which the highest paternal leakage has been observed. The variety white 115 (W115) served as recipient and Pink Wave (PW) and the transplastomic variant PW T16, encoding the uidA reporter gene, as pollen donor. While manual pollination in the greenhouse led to over 90% hybrids for both crossings, the transgenic donor resulted only in 2% hybrids in the field...
December 2017: Biotechnology Reports
https://www.readbyqxmd.com/read/29158982/genome-wide-in-silico-identification-of-membrane-bound-transcription-factors-in-plant-species
#13
Shixiang Yao, Lili Deng, Kaifang Zeng
Membrane-bound transcription factors (MTFs) are located in cellular membranes due to their transmembrane domains. In plants, proteolytic processing is considered to be the main mechanism for MTF activation, which ensures the liberation of MTFs from membranes and further their translocation into the nucleus to regulate gene expression; this process skips both the transcriptional and translational stages, and thus it guarantees the prompt responses of plants to various stimuli. Currently, information concerning plant MTFs is limited to model organisms, including Arabidopsis thaliana and Oryza sativa, and little is known in other plant species at the genome level...
2017: PeerJ
https://www.readbyqxmd.com/read/29158974/whole-genome-sequencing-of-rhodotorula-mucilaginosa-isolated-from-the-chewing-stick-distemonanthus-benthamianus-insights-into-rhodotorula-phylogeny-mitogenome-dynamics-and-carotenoid-biosynthesis
#14
Han Ming Gan, Bolaji N Thomas, Nicole T Cavanaugh, Grace H Morales, Ashley N Mayers, Michael A Savka, André O Hudson
In industry, the yeast Rhodotorula mucilaginosa is commonly used for the production of carotenoids. The production of carotenoids is important because they are used as natural colorants in food and some carotenoids are precursors of retinol (vitamin A). However, the identification and molecular characterization of the carotenoid pathway/s in species belonging to the genus Rhodotorula is scarce due to the lack of genomic information thus potentially impeding effective metabolic engineering of these yeast strains for improved carotenoid production...
2017: PeerJ
https://www.readbyqxmd.com/read/29158777/combined-genome-and-transcriptome-sequencing-to-investigate-the-plant-cell-wall-degrading-enzyme-system-in-the-thermophilic-fungus-malbranchea-cinnamomea
#15
Silvia Hüttner, Thanh Thuy Nguyen, Zoraide Granchi, Thomas Chin-A-Woeng, Dag Ahrén, Johan Larsbrink, Vu Nguyen Thanh, Lisbeth Olsson
Background: Genome and transcriptome sequencing has greatly facilitated the understanding of biomass-degrading mechanisms in a number of fungal species. The information obtained enables the investigation and discovery of genes encoding proteins involved in plant cell wall degradation, which are crucial for saccharification of lignocellulosic biomass in second-generation biorefinery applications. The thermophilic fungus Malbranchea cinnamomea is an efficient producer of many industrially relevant enzymes and a detailed analysis of its genomic content will considerably enhance our understanding of its lignocellulolytic system and promote the discovery of novel proteins...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29158640/a-sucrose-non-fermenting-1-related-protein-kinase-1-gene-from-potato-stsnrk1-regulates-carbohydrate-metabolism-in-transgenic-tobacco
#16
Feibing Wang, Yuxiu Ye, Xinhong Chen, Jizhong Wang, Zhiyuan Chen, Qing Zhou
Sucrose non-fermenting-1-related protein kinase 1 (SnRK1) has been shown to play an essential role in regulating saccharide metabolism and starch biosynthesis of plant. The regulatory role of StSnRK1 from potato in regulating carbohydrate metabolism and starch accumulation has not been investigated. In this work, a cDNA encoding the SnRK1 protein, named StSnRK1, was isolated from potato. The open reading frame contained 1545 nucleotides encoding 514 amino acids. Subcellular localization analysis in onion epidermal cells indicated that StSnRK1 protein was localized to the nucleus...
October 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/29158635/gene-expression-and-activity-of-antioxidant-enzymes-in-rice-plants-cv-brs-ag-under-saline-stress
#17
Tatiana Rossatto, Marcelo Nogueira do Amaral, Letícia Carvalho Benitez, Isabel Lopes Vighi, Eugenia Jacira Bolacel Braga, Ariano Martins de Magalhães Júnior, Mara Andrade Colares Maia, Luciano da Silva Pinto
The rice cultivar (Oryza sativa L.) BRS AG, developed by Embrapa Clima Temperado, is the first cultivar designed for purposes other than human consumption. It may be used in ethanol production and animal feed. Different abiotic stresses negatively affect plant growth. Soil salinity is responsible for a serious reduction in productivity. Therefore, the objective of this study was to evaluate the gene expression and the activity of antioxidant enzymes (SOD, CAT, APX and GR) and identify their functions in controlling ROS levels in rice plants, cultivar BRS AG, after a saline stress period...
October 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/29158629/overexpression-of-lhsornpr1-a-npr1-like-gene-from-the-oriental-hybrid-lily-sorbonne-conferred-enhanced-resistance-to-pseudomonas-syringae-pv-tomato-dc3000-in-arabidopsis
#18
Le Wang, Zhihong Guo, Yubao Zhang, Yajun Wang, Guo Yang, Liu Yang, Li Wang, Ruoyu Wang, Zhongkui Xie
The non-expressor of the pathogenesis-related genes 1 (NPR1) is a master regulator in defense signaling of plants and plays a key role in basal and systemic acquired resistance. In this study, we isolated a NPR1-like gene from the oriental hybrid lily 'Sorbonne' (designated as LhSorNPR1) using rapid amplification of cDNA ends (RACE). The open reading frame of LhSorNPR1 consisted of 1854 bp, encoding a protein of 617 amino acids. Multiple sequence alignment revealed that LhSorNPR1 shares high similarity to NPR1-like proteins and characteristics of the BTB/POZ domain and ankyrin repeats...
October 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/29158628/identification-and-expression-profiling-analysis-of-tcp-family-genes-involved-in-growth-and-development-in-maize
#19
Wenbo Chai, Pengfei Jiang, Guoyu Huang, Haiyang Jiang, Xiaoyu Li
The TCP family is a group of plant-specific transcription factors. TCP genes encode proteins harboring bHLH structure, which is implicated in DNA binding and protein-protein interactions and known as the TCP domain. TCP genes play important roles in plant development and have been evolutionarily and functionally elaborated in various plants, however, no overall phylogenetic analysis or expression profiling of TCP genes in Zea mays has been reported. In the present study, a systematic analysis of molecular evolution and functional prediction of TCP family genes in maize (Z...
October 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/29158627/development-of-transcriptome-based-web-genomic-resources-of-yellow-mosaic-disease-in-vigna-mungo
#20
Rahul Singh Jasrotia, Mir Asif Iquebal, Pramod Kumar Yadav, Neeraj Kumar, Sarika Jaiswal, U B Angadi, Anil Rai, Dinesh Kumar
Vigna mungo (Urdbean) is cultivated in the tropical and sub-tropical continental region of Asia. It is not only important source of dietary protein and nutritional elements, but also of immense value to human health due to medicinal properties. Yellow mosaic disease caused by Mungbean Yellow Mosaic India Virus is known to incur huge loss to crop, adversely affecting crop yield. Contrasting genotypes are ideal source for knowledge discovery of plant defence mechanism and associated candidate genes for varietal improvement...
October 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
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