keyword
MENU ▼
Read by QxMD icon Read
search

plant genetics

keyword
https://www.readbyqxmd.com/read/29779236/arabidopsis-inositol-phosphate-kinases-ipk1-and-itpk1-constitute-a-metabolic-pathway-in-maintaining-phosphate-homeostasis
#1
Hui-Fen Kuo, Yu-Ying Hsu, Wei-Chi Lin, Kai-Yu Chen, Teun Munnik, Charles A Brearley, Tzyy-Jen Chiou
Emerging studies have implicated a close link between inositol phosphate (InsP) metabolism and cellular phosphate (Pi ) homeostasis in eukaryotes; however, whether a common InsP species is deployed as an evolutionarily conserved metabolic messenger to mediate Pi signaling remains unknown. Here, using genetics and InsP profiling combined with Pi starvation response (PSR) analysis in Arabidopsis thaliana, we showed that the kinase activity of inositol pentakisphosphate 2-kinase (IPK1), an enzyme required for phytate (inositol hexakisphosphates; InsP6 ) synthesis, is indispensable for maintaining Pi homeostasis under Pi -replete conditions, and inositol 1,3,4-trisphosphate 5/6-kinase 1 (ITPK1) plays an equivalent role...
May 19, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29779125/genetic-diversity-and-structure-of-a-rare-endemic-cactus-and-an-assessment-of-its-genetic-relationship-with-a-more-common-congener
#2
Niraj Rayamajhi, Jyotsna Sharma
Endemic, obligate outcrossing plant species with narrow geographic distributions and disjunct populations are prone to loss of genetic diversity. Simultaneously, delineating clear species boundaries is important for targeted conservation efforts. The rare and endemic cactus, Sclerocactus brevihamatus subsp. tobuschii (SBT), has a parapatric relationship with Sclerocactus brevihamatus subsp. brevihamatus (SBB) but genetic distance between the two taxa is unknown. We: (1) developed taxon-specific polymorphic microsatellites, (2) assessed genetic diversity within and among nine populations of SBT, and within one population of SBB, and (3) estimated the genetic relationship between the two subspecies...
May 19, 2018: Genetica
https://www.readbyqxmd.com/read/29778978/tough-love-accommodating-intracellular-bacteria-through-directed-secretion-of-antimicrobial-peptides-during-the-nitrogen-fixing-symbiosis
#3
REVIEW
Christina Stonoha-Arther, Dong Wang
The symbiosis formed by nitrogen-fixing bacteria with plant hosts mainly in the legume family involves a very intimate interaction. Within the symbiotic organ (the nodule) the bacteria are fully internalized by the host cell to become an intracellular organelle surrounded by a host-derived membrane. This arrangement is probably necessary for the efficient provision of energy and the sequestration of free oxygen molecules, two conditions required for sustained nitrogen fixation. Recent advances made in model legume species, such as Medicago truncatula, are beginning to uncover the genetic components allowing rhizobia to access the host cytoplasm and establish chronic intracellular infections without overt detrimental effects...
May 17, 2018: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/29778840/identification-of-a-novel-promoter-from-banana-aquaporin-family-gene-matip1-2-which-responses-to-drought-and-salt-stress-in-transgenic-arabidopsis-thaliana
#4
Shun Song, Yi Xu, Dongmei Huang, Hongxia Miao, Juhua Liu, Caihong Jia, Wei Hu, Ana Valeria Valarezo, Biyu Xu, Zhiqiang Jin
Drought and salt stresses often affect plant growth and crop yields. Identification of promoters involved in drought and salt stress responses is of great significance for genetic improvement of crop resistance. Our previous studies showed that aquaporin can respond to drought and salt stresses, but its promoter has not yet been reported in plants. In the present study, cis-acting elements of MaAQP family member promoters were systematically analyzed in banana. Expression of MaTIP1; 2 was induced by drought and salt stresses but not sensitive to cold stress, waterlogging stress, or mechanical damage, and its promoter contained five stress-related cis-acting elements...
May 17, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29778216/nitric-oxide-signalling-in-yeast
#5
Rika I Astuti, Ryo Nasuno, Hiroshi Takagi
Nitric oxide (NO) is a cellular signalling molecule widely conserved among organisms, including microorganisms such as bacteria, yeasts, and fungi, and higher eukaryotes such as plants and mammals. NO is mainly produced by the activities of NO synthase (NOS) or nitrite reductase (NIR). There are several NO detoxification systems, including NO dioxygenase (NOD) and S-nitrosoglutathione reductase (GSNOR). NO homeostasis, based on the balance between NO synthesis and degradation, is important for regulating its physiological functions, since an excess of NO causes nitrosative stress due to the high reactivity of NO and NO-derived compounds...
2018: Advances in Microbial Physiology
https://www.readbyqxmd.com/read/29777901/interrogation-of-ethnomedicinal-plants-for-synthetic-lethality-effects-in-combination-with-deficiency-in-the-dna-repair-endonuclease-rad1-using-a-yeast-cell-based-assay
#6
Hsu Mon Aung, Chananya Huangteerakul, Wittaya Panvongsa, Amornrat N Jensen, Arthit Chairoungdua, Suchada Sukrong, Laran T Jensen
ETHNOPHARMACOLOGICAL RELEVANCE: Plant materials used in this study were selected based on the ethnobotanical literature. Plants have either been utilized by Thai practitioners as alternative treatments for cancer or identified to exhibit anti-cancer properties. AIM OF THE STUDY: To screen ethnomedicinal plants using a yeast cell-based assay for synthetic lethal interactions with cells deleted for RAD1, the yeast homologue of human ERCC4 (XPF) MATERIALS AND METHODS: Ethanolic extracts from thirty-two species of medicinal plants utilized in Thai traditional medicine were screened for synthetic lethal/sick interactions using a yeast cell-based assay...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29777775/genome-analysis-of-the-ancient-tracheophyte-selaginella-tamariscina-reveals-evolutionary-features-relevant-to-the-acquisition-of-desiccation-tolerance
#7
Zhichao Xu, Tianyi Xin, Dorothea Bartels, Ying Li, Wei Gu, Hui Yao, Sai Liu, Haoying Yu, Xiangdong Pu, Jianguo Zhou, Jiang Xu, Caicai Xi, Hetian Lei, Jingyuan Song, Shilin Chen
Resurrection plants, which are the "gifts" of natural evolution, are ideal models for studying genetic basis of plant desiccation tolerance. Here, we report a high-quality genome assembly of 301 Mb for the diploid spike moss Selaginella tamariscina, a primitive vascular resurrection plant. We predicated 27,761 protein-coding genes from the assembled S. tamariscina genome, 11.38% (2363) of which showed significant expression changes in response to desiccation. Approximately 60.58% of the S. tamariscina genome was annotated as repetitive DNA, which is almost 2-fold increase of that in the genome of desiccation-sensitive S...
May 16, 2018: Molecular Plant
https://www.readbyqxmd.com/read/29777501/expression-of-endogenous-proteins-in-maize-hybrids-in-a-multi-location-field-trial-in-india
#8
Linga R Gutha, Divakar Purushottam, Aruna Veeramachaneni, Sarita Tigulla, Vikas Kodappully, Chandana Enjala, Hitendrasinh Rajput, Jennifer Anderson, Bonnie Hong, Jean Schmidt, Shveta Bagga
Genetically modified (GM) crops undergo large scale multi-location field trials to characterize agronomics, composition, and the concentration of newly expressed protein(s) [herein referred to as transgenic protein(s)]. The concentration of transgenic proteins in different plant tissues and across the developmental stages of the plant is considered in the safety assessment of GM crops. Reference or housekeeping proteins are expected to maintain a relatively stable expression pattern in healthy plants given their role in cellular functions...
May 17, 2018: Transgenic Research
https://www.readbyqxmd.com/read/29777161/genetic-diversity-analysis-reveals-genetic-differentiation-and-strong-population-structure-in-calotropis-plants
#9
Nkatha G Muriira, Alice Muchugi, Anmin Yu, Jianchu Xu, Aizhong Liu
The genus Calotropis (Asclepiadaceae) is comprised of two species, C. gigantea and C. procera, which both show significant economic potential for use of their seed fibers in the textile industry, and of their bioactive compounds as new medicinal resources. The available wild-sourced germplasm contains limited genetic information that restricts further germplasm exploration for the purposes of domestication. We here developed twenty novel EST-SSR markers and applied them to assess genetic diversity, population structure and differentiation within Calotropis...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29777105/phenotypic-diversification-by-enhanced-genome-restructuring-after-induction-of-multiple-dna-double-strand-breaks
#10
Nobuhiko Muramoto, Arisa Oda, Hidenori Tanaka, Takahiro Nakamura, Kazuto Kugou, Kazuki Suda, Aki Kobayashi, Shiori Yoneda, Akinori Ikeuchi, Hiroki Sugimoto, Satoshi Kondo, Chikara Ohto, Takehiko Shibata, Norihiro Mitsukawa, Kunihiro Ohta
DNA double-strand break (DSB)-mediated genome rearrangements are assumed to provide diverse raw genetic materials enabling accelerated adaptive evolution; however, it remains unclear about the consequences of massive simultaneous DSB formation in cells and their resulting phenotypic impact. Here, we establish an artificial genome-restructuring technology by conditionally introducing multiple genomic DSBs in vivo using a temperature-dependent endonuclease TaqI. Application in yeast and Arabidopsis thaliana generates strains with phenotypes, including improved ethanol production from xylose at higher temperature and increased plant biomass, that are stably inherited to offspring after multiple passages...
May 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29776925/unravelling-the-reduction-pathway-as-alternative-metabolic-route-to-hydroxycinnamate-decarboxylation-in-lactobacillus-plantarum
#11
Laura Santamaría, Inés Reverón, Félix López de Felipe, Blanca de Las Rivas, Rosario Muñoz
Lactobacillus plantarum is the lactic acid bacterial species most frequently found in plant-food fermentations where hydroxycinnamic acids are abundant. L. plantarum efficiently decarboxylates these compounds, and also reduces them, yielding substituted phenylpropionic acids. Although the reduction step is known to be induced by a hydroxycinnamic acid, the enzymatic machinery responsible for this reduction pathway has not been yet identified and characterized. A previous study on the transcriptomic response of L...
May 18, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29775784/genome-wide-association-mapping-of-virulence-gene-in-rice-blast-fungus-magnaporthe-oryzae-using-a-genotyping-by-sequencing-approach
#12
Siripar Korinsak, Sithichoke Tangphatsornruang, Wirulda Pootakham, Samart Wanchana, Anucha Plabpla, Chatchawan Jantasuriyarat, Sujin Patarapuwadol, Apichart Vanavichit, Theerayut Toojinda
Magnaporthe oryzae is a fungal pathogen causing blast disease in many plant species. In this study, Seventy three isolates of M. oryzae collected from rice (Oryza sativa) in 1996-2014 were genotyped using a genotyping-by-sequencing approach to detect genetic variation. Association study was performed to identify single nucleotide polymorphism (SNP) associated with virulence genes using 831 selected SNP and infection phenotypes on local and improved rice varieties. Population structure analysis revealed eight subpopulations...
May 15, 2018: Genomics
https://www.readbyqxmd.com/read/29775508/lfr-is-functionally-associated-with-as2-to-mediate-leaf-development-in-arabidopsis
#13
Xiaowei Lin, Dandan Gu, Hongtao Zhao, Yue Peng, Guofang Zhang, Mengge Li, Zhijuan Wang, Xiutang Wang, Sujuan Cui
Leaves are essential organs for plants. We previously identified a functional gene possibly encoding a component of the SWI/SNF complex named LFR (Leaf and Flower Related) in Arabidopsis thaliana. Loss-of-function mutants of LFR displayed obvious defects in leaf morphogenesis, indicating its vital role in leaf development. Here an allelic null mutant of ASYMMETRIC LEAVES2 (AS2), as2-6, was isolated as an enhancer of lfr-1 in petiole length, vasculature pattern and leaf margin development. The lfr as2 double mutants showed enhanced ectopic expression of BP than each of the single mutant, which is consistent with their synergistic genetic enhancement in multiple BP-dependent development processes...
May 18, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29774547/petunia-as-model-for-elucidating-adventitious-root-formation-and-mycorrhizal-symbiosis-at-the-nexus-of-physiology-genetics-microbiology-and-horticulture
#14
Uwe Druege, Philipp Franken
Adventitious root formation in cuttings and establishment of arbuscular mycorrhizal symbiosis reflect the enormous plasticity of plants and are key factors in the efficient and sustainable clonal propagation and production of ornamental crops. Based on the high importance of Petunia hybrida for the European and US annual bedding plant markets and its suitability as a model for basic plant sciences, petunia has been established as an experimental system for elucidating the molecular and physiological processes underlying adventitious root formation and mycorrhizal symbiosis...
May 17, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29774148/genetic-variations-in-the-tlr3-locus-are-associated-with-eosinophilic-esophagitis
#15
Robledo Ávila-Castellano, José-Raúl García-Lozano, Stefan Cimbollek, Alfredo J Lucendo, Juan-Manuel Bozada, Joaquín Quiralte
Background: Eosinophilic esophagitis (EoE) is an antigen-driven disease mediated by an abnormal immune Th2 response. Objective: The objective of this article is to investigate genes associated with regulating immune responses leading to disease susceptibility. Methods: Twenty-seven tag single nucleotide polymorphisms (tSNPs) selected in five candidate genes ( TLR3, TLR4, FOXP3, FLG and TSLP ) were genotyped in 218 EoE patients and 376 controls...
April 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29774046/identification-of-rice-genes-associated-with-enhanced-cold-tolerance-by-comparative-transcriptome-analysis-with-two-transgenic-rice-plants-overexpressing-dacbf4-or-dacbf7-isolated-from-antarctic-flowering-plant-deschampsia-antarctica
#16
Mi Young Byun, Li Hua Cui, Jungeun Lee, Hyun Park, Andosung Lee, Woo Taek Kim, Hyoungseok Lee
Few plant species can survive in Antarctica, the harshest environment for living organisms. Deschampsia antarctica is the only natural grass species to have adapted to and colonized the maritime Antarctic. To investigate the molecular mechanism of the Antarctic adaptation of this plant, we identified and characterized D. antarctica C-repeat binding factor 4 ( DaCBF4 ), which belongs to monocot CBF group IV. The transcript level of DaCBF4 in D. antarctica was markedly increased by cold and dehydration stress...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29773972/genetic-diversity-and-structure-of-tea-plant-in-qinba-area-in-china-by-three-types-of-molecular-markers
#17
Yu Zhang, Xiaojuan Zhang, Xi Chen, Wang Sun, Jiao Li
Background: Qinba area has a long history of tea planting and is a northernmost region in China where Camellia sinensis L. is grown. In order to provide basic data for selection and optimization of molecular markers of tea plants. 118 markers, including 40 EST-SSR, 40 SRAP and 38 SCoT markers were used to evaluate the genetic diversity of 50 tea plant ( Camellia sinensis. ) samples collected from Qinb. tea germplasm, assess population structure. Results: In this study, a total of 414 alleles were obtained using 38 pairs of SCoT primers, with an average of 10...
2018: Hereditas
https://www.readbyqxmd.com/read/29771953/mitochondrial-disease-patient-motivations-and-barriers-to-participate-in-clinical-trials
#18
Zarazuela Zolkipli-Cunningham, Rui Xiao, Amy Stoddart, Elizabeth M McCormick, Amy Holberts, Natalie Burrill, Shana McCormack, Lauren Williams, Xiaoyan Wang, John L P Thompson, Marni J Falk
BACKGROUND: Clinical treatment trials are increasingly being designed in primary mitochondrial disease (PMD), a phenotypically and genetically heterogeneous collection of inherited multi- system energy deficiency disorders that lack effective therapy. We sought to identify motivating factors and barriers to clinical trial participation in PMD. METHODS: A survey study was conducted in two independent mitochondrial disease subject cohorts. A discovery cohort invited subjects with well-defined biochemical or molecularly- confirmed PMD followed at a single medical center (CHOP, n = 30/67 (45%) respondents)...
2018: PloS One
https://www.readbyqxmd.com/read/29771908/elevated-temperature-increases-meiotic-crossover-frequency-via-the-interfering-type-i-pathway-in-arabidopsis-thaliana
#19
Jennifer L Modliszewski, Hongkuan Wang, Ashley R Albright, Scott M Lewis, Alexander R Bennett, Jiyue Huang, Hong Ma, Yingxiang Wang, Gregory P Copenhaver
For most eukaryotes, sexual reproduction is a fundamental process that requires meiosis. In turn, meiosis typically depends on a reciprocal exchange of DNA between each pair of homologous chromosomes, known as a crossover (CO), to ensure proper chromosome segregation. The frequency and distribution of COs are regulated by intrinsic and extrinsic environmental factors, but much more is known about the molecular mechanisms governing the former compared to the latter. Here we show that elevated temperature induces meiotic hyper-recombination in Arabidopsis thaliana and we use genetic analysis with mutants in different recombination pathways to demonstrate that the extra COs are derived from the major Type I interference sensitive pathway...
May 17, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29771364/broad-genomic-sampling-reveals-a-smut-pathogenic-ancestry-of-the-fungal-clade-ustilaginomycotina
#20
Teeratas Kijpornyongpan, Stephen J Mondo, Kerrie Barry, Laura Sandor, Juna Lee, Anna Lipzen, Jasmyn Pangilinan, Kurt LaButti, Matthieu Hainaut, Bernard Henrissat, Igor V Grigoriev, Joseph W Spatafora, M Catherine Aime
Ustilaginomycotina is home to a broad array of fungi including important plant pathogens collectively called smut fungi. Smuts are biotrophs that produce characteristic perennating propagules called teliospores, one of which, Ustilago maydis, is a model genetic organism. Broad exploration of smut biology has been hampered by limited phylogenetic resolution of Ustilaginiomycotina as well as an overall lack of genomic data for members of this subphylum. In this study, we sequenced eight Ustilaginomycotina genomes from previously unrepresented lineages, deciphered ordinal-level phylogenetic relationships for the subphylum, and performed comparative analyses...
May 15, 2018: Molecular Biology and Evolution
keyword
keyword
85666
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"