نتایج جستجو برای: aegilops tauschii
تعداد نتایج: 1040 فیلتر نتایج به سال:
در این پژوهش بهمنظور شناسایی زیرواحدهای سبک گلوتنین (LMW-GS) از ژنوم D، 110 نمونه از گونههای گیاهی گندم نان،Aegilops crassa ، Ae. cylindrica و Ae. tauschii. ارزیابی شد. در مجموع با توجه به نتایج آنالیز ژلهای SDS-PAGE چهار آلل شناسایی شد. آلل a با فراوانی 45 درصد دارای بیشترین فراوانی و پس از آن آللهای b، c و d بهترتیب دارای فراوانیهای 1/38 ، 8/11 و 1/9 درصد بودند. در گونة Ae. crassa، آلل...
Adaptation to edaphic stress may have a key role in plant species range expansion. Aegilops tauschii Coss., the common wheat's D-genome progenitor native to the Transcaucasus-Middle East region, is a good model to study the relationships between soil salinity and plant distributions: one of its intraspecific sublineages, TauL1b, drove the long-distance eastward expansion of this species range r...
The wheat leaf-rust resistance gene Lr21 was first identified in an Iranian accession of goatgrass, Aegilops tauschii Coss., the D-genome donor of hexaploid bread wheat, and was introgressed into modern wheat cultivars by breeding. To elucidate the origin of the gene, we analyzed sequences of Lr21 and lr21 alleles from 24 wheat cultivars and 25 accessions of Ae. tauschii collected along the Cas...
In higher plants, seed storage proteins (SSPs) are frequently expressed from complex gene families, and allelic variation of SSP genes often affects the quality traits of crops. In common wheat, the Glu-D1 locus, encoding 1Dx and 1Dy SSPs, has multiple alleles. The Glu-D1d allele frequently confers superior end-use qualities to commercial wheat varieties. Here, we studied the haplotype structur...
Bread wheat (Triticum aestivum, AABBDD) is an allohexaploid species derived from two rounds of interspecific hybridizations. A high-quality genome sequence assembly of diploid Aegilops tauschii, the donor of the wheat D genome, will provide a useful platform to study polyploid wheat evolution. A combined approach of BAC pooling and next-generation sequencing technology was employed to sequence ...
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