نتایج جستجو برای: aegilops tauschii
تعداد نتایج: 1040 فیلتر نتایج به سال:
Aegilops tauschii is the D-genome progenitor of hexaploid wheat (Triticum aestivum). It is considered to be an important source of genetic variation for wheat breeding, and its genome is an invaluable reference for wheat genomics. We conducted a genome-wide association study using 7,185 single nucleotide polymorphism (SNP) markers across 322 diverse accessions of Ae. tauschii that were systemat...
Vernalization promotes flowering in winter wheat cultivars, whereas spring wheat cultivars are able to transition from vegetative to reproductive phase without vernalization. The wheat vernalization requirement is mainly controlled by the major locus Vrn-1, an APETALA1/FRUITFULL MADS-box gene homolog. To study natural variation of the vernalization requirement in a wild progenitor of common whe...
The D-genome progenitor of wheat (Triticum aestivum), Aegilops tauschii, possesses numerous genes for resistance to abiotic stresses, including drought. Therefore, information on the genetic architecture of A. tauschii can aid the development of drought-resistant wheat varieties. Here, we evaluated 13 traits in 373 A. tauschii accessions grown under normal and polyethylene glycol-simulated drou...
Towards the end of World War II, McFadden & Sears (1946) published a lengthy and classic paper on the origin of hexaploid or bread wheat. In the appendix to this paper they acknowledged that Kihara (1944) had also independently identified Aegilops tauschii (syn. Ae. squarrosa, Tritcum tauschii) as the D-genome donor of bread wheat. Since then, there have been many studies on the taxonomy, biolo...
Aegilops tauschii Coss., the D genome donor of hexaploid wheat (Triticum aestivum L.), is most promising resource used to broaden genetic diversity wheat. Taxonomical studies have classified Ae. into two subspecies, ssp. and strangulata. However, molecular analysis revealed three distantly related lineages, TauL1, TauL2 TauL3. TauL1 TauL3 includes only tauschii, whereas both subspecies. This st...
به منظور بررسی میزان جذب فسفر و آهن و برخی شاخصهای فیزیولوژیک در گندم نان (رقم سرداری) و گونههای وحشی اجدادی آن جهت گزینشهای بهنژادی و انتقال ژن، آزمایش فاکتوریلی در قالب طرح بلوکهای کامل تصادفی اجرا شد. در این آزمایش، خصوصیات فیزیولوژیک و میزان جذب فسفر و آهن گندم نان و گونه های اجدادی آن (boeoticumTriticum ، Aegilops speltoides، Triticum diccocoides وAegilops tauschii) تحت تأثیر عامل ک...
The current limitations in genome sequencing technology require the construction of physical maps for high-quality draft sequences of large plant genomes, such as that of Aegilops tauschii, the wheat D-genome progenitor. To construct a physical map of the Ae. tauschii genome, we fingerprinted 461,706 bacterial artificial chromosome clones, assembled contigs, designed a 10K Ae. tauschii Infinium...
Sequence tagged site (STS) markers have been developed recently to identify resistance genes in wheat. A number of wild relatives have been used to transfer resistance genes into wheat cultivars. Accessions of wild species of Triticeae: Aegilops longissima (4), Ae. speltoides (6), Ae. tauschii (8), Ae. umbellulata (3), Ae. ventricosa (3), Triticum spelta (2), T. timopheevi (3), T. boeoticum (4)...
The diploid Aegilops tauschii is the D-genome donor to hexaploid wheat (Triticum aestivum) and represents a potential source for genetic study in common wheat. The ubiquitous wax covering the aerial parts of plants plays an important role in protecting plants against non-stomatal water loss. Cuticular waxes are complex mixtures of very-long-chain fatty acids, alkanes, primary and/or secondary a...
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