نتایج جستجو برای: in ae tauschii
تعداد نتایج: 16977902 فیلتر نتایج به سال:
تنش شوری یکی از اصلی ترین عوامل محیطی است که تولید و توزیع جغرافیایی گیاهان را در سراسر جهان محدود میکند. گیاه آژیلوپس یک گونه وحشی از خانواده گندمیان است که واجد ژن های تحمل به شوری می¬باشد. در این آزمایش، 12 ژنوتیپ آژیلوپس شامل چهار گونه aegilops tauschii، aegilops crassa، aegilops cylindrical و aegilops triunciali از نقاط مختلف ایران از موسسه بانک ژن گیاهی ملی ایران تهیه شد. شاخص¬های مورفولو...
Nascent allohexaploid wheat may represent the initial genetic state of common wheat (Triticum aestivum), which arose as a hybrid between Triticum turgidum (AABB) and Aegilops tauschii (DD) and by chromosome doubling and outcompeted its parents in growth vigor and adaptability. To better understand the molecular basis for this success, we performed mRNA and small RNA transcriptome analyses in na...
44 Effects of polyploidy in allohexaploid wheat (Triticum aestivum L.) have primarily been ascribed 45 to increases in coding sequence variation and potential to acquire new gene functions through 46 mutation of redundant loci. However, regulatory variation that arises through new promoter and 47 transcription factor combinations or epigenetic events may also contribute to the effects of 48 pol...
The classic wheat evolutionary history is one of adaptive radiation of the diploid Triticum/Aegilops species (A, S, D), genome convergence and divergence of the tetraploid (Triticum turgidum AABB, and Triticum timopheevii AAGG) and hexaploid (Triticum aestivum, AABBDD) species. We analyzed Acc-1 (plastid acetyl-CoA carboxylase) and Pgk-1 (plastid 3-phosphoglycerate kinase) genes to determine ph...
Using Roche/454 technology, we sequenced the chloroplast genomes of 12 Triticeae species, including bread wheat, barley and rye, as well as the diploid progenitors and relatives of bread wheat Triticum urartu, Aegilops speltoides and Ae. tauschii. Two wild tetraploid taxa, Ae. cylindrica and Ae. geniculata, were also included. Additionally, we incorporated wild Einkorn wheat Triticum boeoticum ...
Heat shock proteins (Hsps) are believed to play essential roles in developmental processes and in responses to heat stress. Heat shock transcription factors (Hsfs) are important Hsp regulators, but their functions are poorly understood, especially in wheat. In this study, a comprehensive bioinformatics analysis was conducted in wheat A and D genome donors, Triticum urartu and Aegilops tauschii,...
Fluorescence in situ hybridization (FISH) is widely used in the physical mapping of genes and chromosome landmarks in plants and animals. Bacterial artificial chromosomes (BACs) contain large inserts, making them amenable for FISH mapping. In our BAC-FISH experiments, we selected 56 restriction fragment length polymorphism (RFLP)-locus-specific BAC clones from the libraries of Triticum monococc...
Leaf rust is one of the most devastating wheat diseases worldwide, to which many resistance genes have been successfully introgressed from wild relatives. Though Thinopyrum ponticum-derived leaf gene Lr19 widely effective, and previous studies shown its likely presence in Aegilops tauschii, no thorough investigation has conducted confirm this. The current study examined Ae. tauschii using molec...
Barley (Hordeum vulgare L.) possesses a large and highly repetitive genome of 5.1 Gb that has hindered the development of a complete sequence. In 2012, the International Barley Sequencing Consortium released a resource integrating whole-genome shotgun sequences with a physical and genetic framework. However, because only 6278 bacterial artificial chromosome (BACs) in the physical map were seque...
خواص بی نظیر آرد گندم بستگی به پروتئین های ذخیره ای بذر دارند، گلوتن که رابطه مستقیمی با کیفیت خمیر دارد، از سه جزء گلوتنین های با وزن مولکولی بالا، گلوتنین های با وزن مولکولی پایین و گلیادین تشکیل شده است و در حدود 80 درصد پروتئین های ذخیره ای بذر را تشکیل می دهد. تنوع ژنتیکی در سطح دی ان ای برای گلوتنین های با وزن مولکولی پایین و گلیادین ها به دلیل تنوع اللی بالا و همپوشانی آنها با هم هنوز به...
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