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https://www.readbyqxmd.com/read/29143607/features-of-ppd-b1-expression-regulation-and-their-impact-on-the-flowering-time-of-wheat-near-isogenic-lines
#1
Antonina A Kiseleva, Elena K Potokina, Elena A Salina
BACKGROUND: Photoperiod insensitive Ppd-1a alleles determine early flowering of wheat. Increased expression of homoeologous Ppd-D1a and Ppd-A1a result from deletions in the promoter region, and elevated expression of Ppd-B1a is determined by an increased copy number. RESULTS: In this study, using bread wheat cultivars Sonora and PSL2, which contrast in flowering time, and near-isogenic lines resulting from their cross, "Ppd-m" and "Ppd-w" with Ppd-B1a introgressed from Sonora, we investigated the putative factors that influence Ppd-B1a expression...
November 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29143604/fine-organization-of-genomic-regions-tagged-to-the-5s-rdna-locus-of-the-bread-wheat-5b-chromosome
#2
Ekaterina M Sergeeva, Andrey B Shcherban, Irina G Adonina, Michail A Nesterov, Alexey V Beletsky, Andrey L Rakitin, Andrey V Mardanov, Nikolai V Ravin, Elena A Salina
BACKGROUND: The multigene family encoding the 5S rRNA, one of the most important structurally-functional part of the large ribosomal subunit, is an obligate component of all eukaryotic genomes. 5S rDNA has long been a favored target for cytological and phylogenetic studies due to the inherent peculiarities of its structural organization, such as the tandem arrays of repetitive units and their high interspecific divergence. The complex polyploid nature of the genome of bread wheat, Triticum aestivum, and the technically difficult task of sequencing clusters of tandem repeats mean that the detailed organization of extended genomic regions containing 5S rRNA genes remains unclear...
November 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29137113/integrated-evaluation-of-the-potential-health-benefits-of-einkorn-based-breads
#3
Fabiana Antognoni, Roberto Mandrioli, Alessandra Bordoni, Mattia Di Nunzio, Blanca Viadel, Elisa Gallego, María Paz Villalba, Lidia Tomás-Cobos, Danielle Laure Taneyo Saa, Andrea Gianotti
Nowadays the high nutritional value of whole grains is recognized, and there is an increasing interest in the ancient varieties for producing wholegrain food products with enhanced nutritional characteristics. Among ancient crops, einkorn could represent a valid alternative. In this work, einkorn flours were analyzed for their content in carotenoids and in free and bound phenolic acids, and compared to wheat flours. The most promising flours were used to produce conventional and sourdough fermented breads. Breads were in vitro digested, and characterized before and after digestion...
November 11, 2017: Nutrients
https://www.readbyqxmd.com/read/29131335/shelf-life-characteristics-of-bread-produced-from-ozonated-wheat-flour
#4
Mohammed Obadi, Ke-Xue Zhu, Wei Peng, Abdellatif A Sulieman, Amer Ali Mahdi, Khalid Mohammed, Hui-Ming Zhou
The objective of this work was to study the effect of ozone treatment on the quality of bread and its shelf life. Flour was treated with ozone gas a rate of 5 L/min for 5, 15, 25, 35, and 45 min. Baking studies showed that bread made from flour treated with ozone for 15 min exhibited improved quality properties (in terms of specific volume, bread color, and crumb cell numbers). Expousre to ozone for shorter times did not cause obvious changes in the major volatile compounds of bread. A shelf life tests showed that ozone gas treatment influenced the extent of starch crystallinity...
November 13, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/29125785/cytogenetic-analysis-and-mapping-of-leaf-rust-resistance-in-aegilops-speltoides-tausch-derived-bread-wheat-line-selection2427-carrying-putative-gametocidal-gene-s
#5
M Niranjana, Vinod, J B Sharma, Niharika Mallick, S M S Tomar, S K Jha
Leaf rust (Puccinia triticina) is a major biotic stress affecting wheat yields worldwide. Host-plant resistance is the best method for controlling leaf rust. Aegilops speltoides is a good source of resistance against wheat rusts. To date, five Lr genes, Lr28, Lr35, Lr36, Lr47, and Lr51, have been transferred from Ae. speltoides to bread wheat. In Selection2427, a bread wheat introgresed line with Ae. speltoides as the donor parent, a dominant gene for leaf rust resistance was mapped to the long arm of chromosome 3B (LrS2427)...
August 25, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/29116352/a-multiplex-competitive-elisa-for-the-detection-and-characterization-of-gluten-in-fermented-hydrolyzed-foods
#6
Rakhi Panda, Marc Boyer, Eric A E Garber
A novel competitive ELISA was developed utilizing the G12, R5, 2D4, MIoBS, and Skerritt antibody-HRP conjugates employed in nine commercial ELISA test kits that are routinely used for gluten detection. This novel multiplex competitive ELISA simultaneously measures gliadin-, deamidated gliadin-, and glutenin-specific epitopes. The assay was used to evaluate 20 wheat beers, 20 barley beers, 6 barley beers processed to reduce gluten, 15 soy sauces, 6 teriyaki sauces, 6 Worcestershire sauces, 6 vinegars, and 8 sourdough breads...
November 7, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29116063/-myc-gene-family-in-cereals-transformations-during-evolution-of-hexaploid-bread-wheat-and-its-relatives
#7
K V Strygina, E K Khlestkina
The transcription factors of the MYC gene family are an integral part of the MYB + MYC + WD40 regulatory complex required to activate the genes of plant flavonoid biosynthesis. The TaMyc1 gene, which controls the synthesis of flavonoid pigments in the grain pericarp, is known in bread wheat (Triticum aestivum L., BBAADD genome, 2n = 6x = 42). In the present work, we identified 10 copies of this gene in the T. aestivum genome, 22 copies in the nearest bread wheat relatives (T. durum, T. urartu, T. monococcum, Aegilops speltoides, Ae...
September 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/29113045/pilot-study-comparison-of-sourdough-wheat-bread-and-yeast-fermented-wheat-bread-in-individuals-with-wheat-sensitivity-and-irritable-bowel-syndrome
#8
Reijo Laatikainen, Jari Koskenpato, Sanna-Maria Hongisto, Jussi Loponen, Tuija Poussa, Xin Huang, Tuula Sontag-Strohm, Hanne Salmenkari, Riitta Korpela
Many patients suspect wheat as being a major trigger of their irritable bowel syndrome (IBS) symptoms. Our aim was to evaluate whether sourdough wheat bread baked without baking improvers and using a long dough fermentation time (>12 h), would result in lower quantities of alpha-amylase/trypsin inhibitors (ATIs) and Fermentable, Oligo-, Di-, Mono-saccharides and Polyols (FODMAPs), and would be better tolerated than yeast-fermented wheat bread for subjects with IBS who have a poor subjective tolerance to wheat...
November 4, 2017: Nutrients
https://www.readbyqxmd.com/read/29109252/poaceae-specific-ms1-encodes-a-phospholipid-binding-protein-for-male-fertility-in-bread-wheat
#9
Zheng Wang, Jian Li, Shaoxia Chen, Yanfang Heng, Zhuo Chen, Jing Yang, Kuanji Zhou, Jiawei Pei, Hang He, Xing Wang Deng, Ligeng Ma
Male sterility is an essential trait in hybrid seed production for monoclinous crops, including rice and wheat. However, compared with the high percentage of hybrid rice planted in the world, little commercial hybrid wheat is planted globally as a result of the lack of a suitable system for male sterility. Therefore, understanding the molecular nature of male fertility in wheat is critical for commercially viable hybrid wheat. Here, we report the cloning and characterization of Male Sterility 1 (Ms1) in bread wheat by using a combination of advanced genomic approaches...
November 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29105256/fusarium-crown-rot-caused-by-fusarium-pseudograminearum-in-cereal-crops-recent-progress-and-future-prospects
#10
Kemal Kazan, Donald Gardiner
Diseases caused by Fusarium pathogens inflict major yield and quality losses on many economically important plant species worldwide, including cereals. Fusarium crown rot (FCR) caused by Fusarium pseudograminearum is a cereal disease that occurs in many arid and semi-arid cropping regions of the world. In recent years, this disease has become more prevalent, in part due to the adoption of moisture-preserving cultural practices such as minimum tillage and stubble retention. In this pathogen profile, we present a brief overview of recent research efforts that not only have advanced our understanding of the interactions between F...
November 4, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/29105087/predicting-rheological-behaviour-and-baking-quality-of-wheat-flour-using-a-glutopeak-test
#11
Slađana Rakita, Ljubica Dokić, Tamara Dapčević Hadnađev, Miroslav Hadnađev, Aleksandra Torbica
The purpose of this research was to gain an insight into the ability of the Glutopeak instrument to predict flour functionality for bread making, as well as to determine which of the Glutopeak parameters shows the best potential in predicting dough rheological behaviour and baking performance. Obtained results showed that GlutoPeak parameters correlated better with the indices of extensional rheological tests which consider constant dough hydration than with those which were performed at constant dough consistency...
November 4, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/29103142/unlocking-the-diversity-of-genebanks-whole-genome-marker-analysis-of-swiss-bread-wheat-and-spelt
#12
Thomas Müller, Beate Schierscher-Viret, Dario Fossati, Cécile Brabant, Arnold Schori, Beat Keller, Simon G Krattinger
High-throughput genotyping of Swiss bread wheat and spelt accessions revealed differences in their gene pools and identified bread wheat landraces that were not used in breeding. Genebanks play a pivotal role in preserving the genetic diversity present among old landraces and wild progenitors of modern crops and they represent sources of agriculturally important genes that were lost during domestication and in modern breeding. However, undesirable genes that negatively affect crop performance are often co-introduced when landraces and wild crop progenitors are crossed with elite cultivars, which often limit the use of genebank material in modern breeding programs...
November 4, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29102241/from-genetic-stock-to-genome-editing-gene-exploitation-in-wheat
#13
REVIEW
Meng Wang, Shubin Wang, Zhen Liang, Weiming Shi, Caixia Gao, Guangmin Xia
Bread wheat (Triticum aestivum) ranks as one of our most important staple crops. However, its hexaploid nature has complicated our understanding of the genetic bases underlying many of its traits. Historically, functional genetic studies in wheat have focused on identifying natural variations and have contributed to assembling and enriching its genetic stock. Recently, mold-breaking advances in whole genome sequencing, exome-capture based mutant libraries, and genome editing have revolutionized strategies for genetic research in wheat...
October 25, 2017: Trends in Biotechnology
https://www.readbyqxmd.com/read/29100539/genome-wide-analysis-of-the-cellulose-synthase-like-csl-gene-family-in-bread-wheat-triticum-aestivum-l
#14
Simerjeet Kaur, Kanwarpal S Dhugga, Robin Beech, Jaswinder Singh
BACKGROUND: Hemicelluloses are a diverse group of complex, non-cellulosic polysaccharides, which constitute approximately one-third of the plant cell wall and find use as dietary fibres, food additives and raw materials for biofuels. Genes involved in hemicellulose synthesis have not been extensively studied in small grain cereals. RESULTS: In efforts to isolate the sequences for the cellulose synthase-like (Csl) gene family from wheat, we identified 108 genes (hereafter referred to as TaCsl)...
November 3, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29099990/transfer-of-a-starch-phenotype-from-wild-wheat-to-bread-wheat-by-deletion-of-a-locus-controlling-b-type-starch-granule-content
#15
Tansy Chia, Nikolai M Adamski, Benedetta Saccomanno, Andy Greenland, Alastair Nash, Cristobal Uauy, Kay Trafford
Our previous genetic analysis of a tetraploid wild wheat species, Aegilops peregrina, predicted that a single gene per haploid genome, Bgc-1, controls B-type starch granule content in the grain. To test whether bread wheat (Triticum aestivum L.) has orthologous Bgc-1 loci, we screened a population of γ-irradiated bread wheat cv. Paragon for deletions of the group 4 chromosomes spanning Bgc-1. Suitable deletions, each encompassing ~600-700 genes, were discovered for chromosomes 4A and 4D. These two deletions are predicted to have 240 homoeologous genes in common...
November 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29089851/lactic-acid-fermentation-improved-textural-behaviour-phenolic-compounds-and-antioxidant-activity-of-chia-%C3%A2-salvia-hispanica-l-dough
#16
Ana Yanina Bustos, Carla Luciana Gerez, Lina Goumana Mohtar Mohtar, Verónica Irene Paz Zanini, Mónica Azucena Nazareno, María Pía Taranto, Laura Beatriz Iturriaga
In this work, autochthonous lactic acid bacteria (LAB) were isolated from chia (Salvia hispanica L.) dough and selected on the basis of the kinetics of acidification and proteolytic activity. Strain no. C8, identified as Lactobacillus plantarum C8, was selected and used as starter to obtain chia sourdough. Lactic acid fermentation increased the organic acid mass fractions (lactic, acetic and phenyl lactic acids to 12.3 g, 1.0 g and 23.8 µg per kg of dough respectively), and antioxidant activities, which increased by approx...
September 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/29069494/the-first-near-complete-assembly-of-the-hexaploid-bread-wheat-genome-triticum-aestivum
#17
Aleksey V Zimin, Daniela Puiu, Richard Hall, Sarah Kingan, Bernardo J Clavijo, Steven L Salzberg
Common bread wheat, Triticum aestivum , has one of the most complex genomes known to science, with 6 copies of each chromosome, enormous numbers of near-identical sequences scattered throughout, and an overall haploid size of more than 15 billion bases. Multiple past attempts to assemble the genome have produced assemblies that were well short of the estimated genome size. Here we report the first near-complete assembly of T. aestivum , using deep sequencing coverage from a combination of short Illumina reads and very long Pacific Biosciences reads...
October 23, 2017: GigaScience
https://www.readbyqxmd.com/read/29063161/improving-the-baking-quality-of-bread-wheat-by-genomic-selection-in-early-generations
#18
Sebastian Michel, Christian Kummer, Martin Gallee, Jakob Hellinger, Christian Ametz, Batuhan Akgöl, Doru Epure, Franziska Löschenberger, Hermann Buerstmayr
Genomic selection shows great promise for pre-selecting lines with superior bread baking quality in early generations, 3 years ahead of labour-intensive, time-consuming, and costly quality analysis. The genetic improvement of baking quality is one of the grand challenges in wheat breeding as the assessment of the associated traits often involves time-consuming, labour-intensive, and costly testing forcing breeders to postpone sophisticated quality tests to the very last phases of variety development. The prospect of genomic selection for complex traits like grain yield has been shown in numerous studies, and might thus be also an interesting method to select for baking quality traits...
October 23, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29058608/in-vivo-phosphoproteome-characterization-reveals-key-starch-granule-binding-phosphoproteins-involved-in-wheat-water-deficit-response
#19
Guan-Xing Chen, Shou-Min Zhen, Yan-Lin Liu, Xing Yan, Ming Zhang, Yue-Ming Yan
BACKGROUND: Drought stress during grain development causes significant yield loss in cereal production. The phosphorylated modification of starch granule-binding proteins (SGBPs) is an important mechanism regulating wheat starch biosynthesis. In this study, we performed the first proteomics and phosphoproteomics analyses of SGBPs in elite Chinese bread wheat (Triticum aestivum L.) cultivar Jingdong 17 under well-watered and water-stress conditions. RESULTS: Water stress treatment caused significant reductions in spike grain numbers and weight, total starch and amylopectin content, and grain yield...
October 23, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29057794/food-and-beverage-availability-in-small-food-stores-located-in-healthy-food-financing-initiative-eligible-communities
#20
Chelsea R Singleton, Yu Li, Ana Clara Duran, Shannon N Zenk, Angela Odoms-Young, Lisa M Powell
Food deserts are a major public health concern. This study aimed to assess food and beverage availability in four underserved communities eligible to receive funding from the Healthy Food Financing Initiative (HFFI). Data analyzed are part of a quasi-experimental study evaluating the impact of the HFFI on the retail food environment in selected Illinois communities. In 2015, 127 small grocery and limited service stores located in the four selected communities were audited. All communities had a large percentage of low-income and African-American residents...
October 18, 2017: International Journal of Environmental Research and Public Health
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