Results 241 to 250 of about 1,537,395 (283)
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Microsatellite analysis in cultivated hexaploid wheat and wild wheat relatives.
2001Hexaploid bread wheat contains three genomes, A, B and D with the formula AABBDD, amounting to a very large and complex total genome. Although bread wheat, Triticum aestivum (2n = 6x = 42), is one of the most extensively studied polyploid crops, the probable evolutionary history has only recently been established by studying the various wild relatives.
McLauchlan, A +3 more
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Phylogeny of the a genomes of wild and cultivated wheat species
Russian Journal of Genetics, 2009Diploid species of the genus Triticum L. are its most ancient representatives and have the A genome, which was more recently inherited by all polyploid species. Studies of the phylogenetic relationships among diploid and polyploid wheat species help to identify the donors of elementary genomes and to examine the species specificity of genomes.
K A, Golovnina +3 more
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Gliadin polymorphism in wild and cultivated einkorn wheats
Theoretical and Applied Genetics, 1997To study the relationships between different species of the Einkorn group, 408 accessions of Triticum monococcum, T. boeoticum, T. boeoticum ssp. thauodar and T. urartu were analyzed electrophoretically for their protein composition at the Gli-1 and Gli-2 loci. In all the species the range of allelic variation at the loci examined is remarkable.
Ciaffi, Mario +2 more
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High Temperature Stress in Wild Wheats and Spring Wheats
Australian Journal of Plant Physiology, 1994The effect of high temperature stress on wild and spring wheats is reviewed. Wild wheats include species in the genera Aegilops L. and Triticum L. Species exist in a polyploid series, diploid, tetraploid and hexaploid, based on the genome formula, n = x = 7 chromosomes.
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Selectivity of Dicamba in Wheat and Wild Buckwheat
Weed Science, 1971The uptake, translocation, and fate of14C-labeled 3,6-dichloro-o-anisic acid (14C-dicamba) were studied in wheat (Triticum aestivumL., 'Selkirk’) and wild buckwheat (Polygonum convolvulusL.) as resistant and susceptible species, respectively. Selectivity could not be explained by interspecific differences in uptake of14C-dicamba by leaf sections ...
P. C. Quimby, John D. Nalewaja
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Wheat Pre-Breeding Using Wild Progenitors
Euphytica, 2001To facilitate the use of wheat wild relatives in conventional breedingprograms, a wheat pre-breeding activity started at ICARDA in 1994/1995season. Preliminary results of gene introgression from wild diploidprogenitors, Triticum urartu, T. baeoticum, Aegilops speltoides andAe. tauschii and tetraploid T. dicoccoides are described.
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How and When Was Wild Wheat Domesticated?
Science, 2006Estimating the time span of plant domestication is fundamental to understanding and reconstructing the cultural processes underlying the “Neolithic Revolution.” In their Brevia “How fast was wild wheat domesticated?” (31 Mar., p. [1886][1]), K. Tanno and G.
Simcha Lev-Yadun +2 more
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Wild Relatives of the Wheat Grain Proteome
Journal of Plant Biology, 2010We applied proteomics analysis to generate a map of the wild relatives of wheat grain proteins. These differentially expressed proteins are potentially involved in metabolism, stress responses, and other biological activities. Using two-dimensional electrophoresis, we detected 119, 134, and 193 reproducible spots on gels loaded with protein samples ...
Ki-Hyun Kim +6 more
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Distribution of wild wheats and barley.
Science (New York, N.Y.), 2010If we accept the evidence at face value, we are led to conclude that emmer was probably domesticated in the upper Jordan watershed and that einkorn was domesticated in southeast Turkey. Barley could have been domesticated almost anywhere within the arc bordering the fertile crescent.
J R, Harlan, D, Zohary
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Competition of Wild Oat in Wheat and Barley
Weed Science, 1968Wild oat (Avena fatua L.) competition increased the losses in yield of both wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) with increased densities of seedlings. At Fargo in 1965, wild oat densities of 70 and 160 seedlings/sq yd reduced the wheat yield 22.1% and 39.1%, respectively, compared to the wild oat-free check.
Allyn R. Bell, John D. Nalewaja
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