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https://www.readbyqxmd.com/read/28428792/identification-of-candidate-genes-and-biosynthesis-pathways-related-to-fertility-conversion-by-wheat-ktm3315a-transcriptome-profiling
#1
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/28427033/toxicity-of-sulfadiazine-and-copper-and-their-interaction-to-wheat-triticum-aestivum-l-seedlings
#2
Yonggang Xu, Wantai Yu, Qiang Ma, Hua Zhou, Chunming Jiang
A pot experiment was carried out to investigate the single and combined effect of different concentrations of sulfadiazine (SDZ) (1 and 10mgkg(-1)) and copper (Cu) (20 and 200mgkg(-1)) stresses on growth, hydrogen peroxide (H2O2), malondialdehyde (MDA), antioxidant enzyme activities of wheat seedlings and their accumulation. High SDZ or Cu level significantly inhibited the growth of wheat seedlings, but the emergence rate was only inhibited by high SDZ level. The presence of Cu reduced the accumulation of SDZ, whereas the effect of SDZ on the accumulation of Cu depended on their concentrations...
April 17, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28426157/effects-of-ambient-temperature-in-association-with-photoperiod-on-phenology-and-on-the-expressions-of-major-plant-developmental-genes-in-wheat-triticum-aestivum-l
#3
Tibor Kiss, Laura E Dixon, Alexandra Soltész, Judit Bányai, Marianna Mayer, Krisztina Balla, Vincent Allard, Gábor Galiba, Gustavo A Slafer, Simon Griffiths, Ottó Veisz, Ildikó Karsai
In addition to its role in vernalization, temperature is an important environmental stimulus in determining plant growth and development. We used factorial combinations of two photoperiods (16H, 12H) and three temperature levels (11 °C, 18 °C, and 25 °C) to study the temperature responses of 19 wheat cultivars with established genetic relationships. Temperature produced more significant effects on plant development than photoperiod, with strong genotypic components. Wheat genotypes with PPD-D1 photoperiod sensitive allele were sensitive to temperature; their development was delayed by higher temperature, which intensified under non-inductive conditions...
April 20, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28424873/the-changes-in-the-reproductive-barrier-between-hexaploid-wheat-triticum-aestivum-l-and-rye-secale-cereale-l-different-states-lead-to-different-fates
#4
Natalia Tikhenko, Twan Rutten, Angelika Senula, Myroslava Rubtsova, E R Joachim Keller, Andreas Börner
The changes in the reproductive barrier between hexaploid wheat ( Triticum aestivum L.) and rye ( Secale cereale L.) can be induced using in situ embryo rescue of abnormal embryos, yielding stable fertile amphidiploid plants. In intergeneric crosses between hexaploid wheat (Triticum aestivum L.) and rye (Secale cereale L.), postzygotic barriers may occur at different stages of hybrid development. One such mechanism is embryo lethality, which is genetically determined by the interaction and expression of two incompatible genes in wheat (Eml-A1) and rye (Eml-R1)...
April 19, 2017: Planta
https://www.readbyqxmd.com/read/28424717/expression-of-the-maize-dof1-transcription-factor-in-wheat-and-sorghum
#5
Pamela A Peña, Truyen Quach, Shirley Sato, Zhengxiang Ge, Natalya Nersesian, Taity Changa, Ismail Dweikat, Madhavan Soundararajan, Tom E Clemente
Nitrogen is essential for plant growth and development. Improving the ability of plants to acquire and assimilate nitrogen more efficiently is a key agronomic parameter that will augment sustainability in agriculture. A transcription factor approach was pursued to address improvement of nitrogen use efficiency in two major commodity crops. To this end, the Zea mays Dof1 (ZmDof1) transcription factor was expressed in both wheat (Triticum aestivum) and sorghum (Sorghum bicolor) either constitutively, UBI4 promoter from sugarcane, or in a tissue specific fashion via the maize rbcS1 promoter...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424709/evolutionary-analysis-of-snf1-related-protein-kinase2-snrk2-and-calcium-sensor-scs-gene-lineages-and-dimerization-of-rice-homologs-suggest-deep-biochemical-conservation-across-angiosperms
#6
Lynn D Holappa, Pamela C Ronald, Elena M Kramer
Members of the sucrose non-fermenting related kinase Group2 (SnRK2) subclasses are implicated in both direct and indirect abscisic acid (ABA) response pathways. We have used phylogenetic, biochemical, and transient in vivo approaches to examine interactions between Triticum tauschii protein kinase 1 (TtPK1) and an interacting protein, Oryza sativa SnRK2-calcium sensor (OsSCS1). Given that TtPK1 has 100% identity with its rice ortholog, osmotic stress/ABA-activated protein kinase (OsSAPK2), we hypothesized that the SCS and TtPK1 interactions are present in both wheat and rice...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424706/evaluation-of-yield-and-drought-using-active-and-passive-spectral-sensing-systems-at-the-reproductive-stage-in-wheat
#7
Elisabeth Becker, Urs Schmidhalter
Active and passive sensors are available for ground-based, high-throughput phenotyping in the field. However, these sensor systems have seldom been compared with respect to their determination of plant water status and water use efficiency related parameters under drought conditions. In this study, five passive and active reflectance sensors, including a hyperspectral passive sensor, an active flash sensor (AFS), the Crop Circle, and the GreenSeeker, were evaluated to assess drought-related destructive and non-destructive morphophysiological parameters (ground cover, relative leaf water content, leaf temperature, and carbon isotope discrimination of leaves and grain) and grain yield of twenty wheat (Triticum aestivum L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28407081/isolation-of-early-responsive-microrna-from-diuraphis-noxia-hemiptera-aphididae-resistant-wheat
#8
Vittorio F Nicolis, Sonia-Mari Greyling, Eduard Venter
The Russian wheat aphid (Diuraphis noxia Kurdjumov) is an economically important pest of small grains in many countries. The past decades have seen the deployment of resistance-carrying wheat (Triticum aestivum L.) cultivars to control D. noxia. However, the emergence of resistance-breaking biotypes is negating this strategy. The role that noncoding RNA (ncRNA) molecules play in the wheat-D. noxia interaction has not been studied to date. This study aimed to isolate differentially regulated microRNA from a resistant and susceptible near-isogenic wheat line after aphid infestation...
April 12, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28406246/unravelling-mycorrhiza-induced-wheat-susceptibility-to-the-english-grain-aphid-sitobion-avenae
#9
Amma L Simon, Peter A D Wellham, Gudbjorg I Aradottir, Alan C Gange
Arbuscular mycorrhizal (AM) fungi are root symbionts that can increase or decrease aphid growth rates and reproduction, but the reason by which this happens is unknown. To investigate the underlying mechanisms of this interaction, we examined the effect of AM fungi on the English Grain aphid (Sitobion avenae) development, reproduction, attraction, settlement and feeding behaviour on two naturally susceptible varieties Triticum aestivum (L.) variety Solstice and T. monococcum MDR037, and two naturally resistant lines, T...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28401336/genome-wide-identification-and-characterization-of-nb-arc-resistant-genes-in-wheat-triticum-aestivum-l-and-their-expression-during-leaf-rust-infection
#10
Saket Chandra, Andaleeb Z Kazmi, Zainab Ahmed, Gargi Roychowdhury, Veena Kumari, Manish Kumar, Kunal Mukhopadhyay
NB-ARC domain-containing resistance genes from the wheat genome were identified, characterized and localized on chromosome arms that displayed differential yet positive response during incompatible and compatible leaf rust interactions. Wheat (Triticum aestivum L.) is an important cereal crop; however, its production is affected severely by numerous diseases including rusts. An efficient, cost-effective and ecologically viable approach to control pathogens is through host resistance. In wheat, high numbers of resistance loci are present but only few have been identified and cloned...
April 11, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28399136/high-density-mapping-and-haplotype-analysis-of-the-major-stem-solidness-locus-sst1-in-durum-and-common-wheat
#11
Kirby T Nilsen, Amidou N'Diaye, P R MacLachlan, John M Clarke, Yuefeng Ruan, Richard D Cuthbert, Ron E Knox, Krystalee Wiebe, Aron T Cory, Sean Walkowiak, Brian L Beres, Robert J Graf, Fran R Clarke, Andrew G Sharpe, Assaf Distelfeld, Curtis J Pozniak
Breeding for solid-stemmed durum (Triticum turgidum L. var durum) and common wheat (Triticum aestivum L.) cultivars is one strategy to minimize yield losses caused by the wheat stem sawfly (Cephus cinctus Norton). Major stem-solidness QTL have been localized to the long arm of chromosome 3B in both wheat species, but it is unclear if these QTL span a common genetic interval. In this study, we have improved the resolution of the QTL on chromosome 3B in a durum (Kofa/W9262-260D3) and common wheat (Lillian/Vesper) mapping population...
2017: PloS One
https://www.readbyqxmd.com/read/28397121/effect-of-biochar-on-alleviation-of-cadmium-toxicity-in-wheat-triticum-aestivum-l-grown-on-cd-contaminated-saline-soil
#12
Tahir Abbas, Muhammad Rizwan, Shafaqat Ali, Muhammad Adrees, Muhammad Zia-Ur-Rehman, Muhammad Farooq Qayyum, Yong Sik Ok, Ghulam Murtaza
Soil degradation by salinity and accumulation of trace elements such as cadmium (Cd) in the soils are expected to become one of the most critical issues hindering sustainable production and feeding the increasing population. Biochar (BC) has been known to protect the plants against soil salinity and heavy metal stress. A soil culture study was performed to evaluate the effect of BC on wheat (Triticum aestivum L.) growth, biomass, and reducing Cd and sodium (Na) uptake grown in Cd-contaminated saline soil under ambient conditions...
April 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28396677/gametocidal-factor-transferred-from-aegilops-geniculata-roth-can-be-adapted-for-large-scale-chromosome-manipulations-in-cereals
#13
Michał T Kwiatek, Halina Wiśniewska, Aurelia Ślusarkiewicz-Jarzina, Joanna Majka, Maciej Majka, Jolanta Belter, Hanna Pudelska
Segregation distorters are curious, evolutionarily selfish genetic elements, which distort Mendelian segregation in their favor at the expense of others. Those agents include gametocidal factors (Gc), which ensure their preferential transmission by triggering damages in cells lacking them via chromosome break induction. Hence, we hypothesized that the gametocidal system can be adapted for chromosome manipulations between Triticum and Secale chromosomes in hexaploid triticale (×Triticosecale Wittmack). In this work we studied the little-known gametocidal action of a Gc factor located on Aegilops geniculata Roth chromosome 4M(g)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28393303/genomic-and-pedigree-based-prediction-for-leaf-stem-and-stripe-rust-resistance-in-wheat
#14
Philomin Juliana, Ravi P Singh, Pawan K Singh, Jose Crossa, Julio Huerta-Espino, Caixia Lan, Sridhar Bhavani, Jessica E Rutkoski, Jesse A Poland, Gary C Bergstrom, Mark E Sorrells
Genomic prediction for seedling and adult plant resistance to wheat rusts was compared to prediction using few markers as fixed effects in a least-squares approach and pedigree-based prediction. The unceasing plant-pathogen arms race and ephemeral nature of some rust resistance genes have been challenging for wheat (Triticum aestivum L.) breeding programs and farmers. Hence, it is important to devise strategies for effective evaluation and exploitation of quantitative rust resistance. One promising approach that could accelerate gain from selection for rust resistance is 'genomic selection' which utilizes dense genome-wide markers to estimate the breeding values (BVs) for quantitative traits...
April 9, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28391694/molecular-characterization-and-variation-of-the-celiac-disease-epitope-domains-among-%C3%AE-gliadin-genes-in-aegilops-tauschii
#15
Yu-Ge Li, Hui-Hui Liang, Sheng-Long Bai, Yun Zhou, Guiling Sun, Ya-Rui Su, An-Li Gao, Da-Le Zhang, Suo-Ping Li
To explore the distribution and quantity of toxic epitopes in α-gliadins from Aegilops tauschii, a total of 133 complete α-gliadin coding sequences were obtained, including 69 pseudogenes with at least one premature stop codon and 64 genes with complete open reading frames (ORFs). Plenty of deletions and single amino acid substitutions were found in the 4 celiac disease (CD) toxic epitope domains through multiple alignments, in which the sequence of DQ2.5-glia-α2 demonstrated the most significant changes...
April 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28391467/osmopriming-with-cacl2-improves-wheat-triticum-aestivum-l-production-under-water-limited-environments
#16
Shahid Farooq, Mubshar Hussain, Khawar Jabran, Waseem Hassan, Muhammad S Rizwan, Tauqeer A Yasir
This 2-year field study investigates the potential of seed priming to mitigate losses caused by drought stress at different phenophases of wheat. Wheat seeds were soaked either in distilled water or in aerated solution of CaCl2 (ψs -1.25 MPa) for 18 h to accomplish hydropriming and osmopriming, respectively. The soil moisture was maintained at 90-100% field capacity (well-watered) or 45-50% field capacity at vegetative (vegetative drought) and reproductive (terminal drought) phases. Allometric traits leaf area index, leaf area duration, and crop growth rate were initially more affected by vegetative drought; however, terminal drought was more severe at later stages...
April 9, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28389147/contribution-of-crop-models-to-adaptation-in-wheat
#17
REVIEW
Karine Chenu, John Roy Porter, Pierre Martre, Bruno Basso, Scott Cameron Chapman, Frank Ewert, Marco Bindi, Senthold Asseng
With world population growing quickly, agriculture needs to produce more with fewer inputs while being environmentally friendly. In a context of changing environments, crop models are useful tools to simulate crop yields. Wheat (Triticum spp.) crop models have been evolving since the 1960s to translate processes related to crop growth and development into mathematical equations. These have been used over decades for agronomic purposes, and have more recently incorporated advances in the modeling of environmental footprints, biotic constraints, trait and gene effects, climate change impact, and the upscaling of global change impacts...
April 4, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28386380/wheatgrass-extract-inhibits-hypoxia-inducible-factor-1-mediated-epithelial-mesenchymal-transition-in-a549-cells
#18
Nam Yong Do, Hyun-Jae Shin, Ji-Eun Lee
BACKGROUND/OBJECTIVES: Epithelial-mesenchymal transition (EMT) is involved in not only cancer development and metastasis but also non-cancerous conditions. Hypoxia is one of the proposed critical factors contributing to formation of chronic rhinosinusitis or nasal polyposis. Wheatgrass (Triticum aestivum) has antioxidant, anti-aging, and anti-inflammatory effects. In this study, we analyzed whether wheatgrass has an inhibitory effect on the EMT process in airway epithelial cells. MATERIALS/METHODS: A549 human lung adenocarcinoma cells were incubated in hypoxic conditions (CO2 5%/O2 1%) for 24 h in the presence of different concentrations of wheatgrass extract (50, 75, 100, and 150 µg/mL) and changes in expression of epithelial or mesenchymal markers were evaluated by immunoblotting and immunofluorescence...
April 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28386232/transcriptomic-profiles-reveal-the-interactions-of-cd-zn-in-dwarf-polish-wheat-triticum-polonicum-l-roots
#19
Yi Wang, Xiaolu Wang, Chao Wang, Fan Peng, Ruijiao Wang, Xue Xiao, Jian Zeng, Houyang Kang, Xing Fan, Lina Sha, Haiqin Zhang, Yonghong Zhou
Different intra- or interspecific wheat show different interactions of Cd/Zn. Normally, Zn has been/being widely utilized to reduce the Cd toxicity. In the present study, the DPW seedlings exhibited strong Cd tolerance. Zn and Cd mutually inhibited their uptake in the roots, showed antagonistic Cd/Zn interactions. However, Zn promoted the Cd transport from the roots to shoots, showed synergistic. In order to discover the interactive molecular responses, a transcriptome, including 123,300 unigenes, was constructed using RNA-Sequencing (RNA-Seq)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28384292/molecular-mapping-of-the-grain-iron-and-zinc-concentration-protein-content-and-thousand-kernel-weight-in-wheat-triticum-aestivum-l
#20
Gopalareddy Krishnappa, Anju Mahendru Singh, Swati Chaudhary, Arvind Kumar Ahlawat, Santosh Kumar Singh, Ram Bihari Shukla, Jai Prakash Jaiswal, Gyanendra Pratap Singh, Ishwar Singh Solanki
Genomic regions responsible for accumulation of grain iron concentration (Fe), grain zinc concentration (Zn), grain protein content (PC) and thousand kernel weight (TKW) were investigated in 286 recombinant inbred lines (RILs) derived from a cross between an old Indian wheat variety WH542 and a synthetic derivative (Triticum dicoccon PI94624/Aegilops squarrosa [409]//BCN). RILs were grown in six environments and evaluated for Fe, Zn, PC, and TKW. The population showed the continuous distribution for all the four traits, that for pooled Fe and PC was near normal, whereas, for pooled Zn, RILs exhibited positively skewed distribution...
2017: PloS One
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