Results 211 to 220 of about 79,230 (255)

Harness the wild: progress and perspectives in wheat genetic improvement

Journal of Genetics and Genomics
Bread wheat (Triticum aestivum L.) is a staple hexaploid crop with numerous wild relatives. However, domestication and modern breeding have significantly narrowed its genetic diversity, diminishing its capacity to adapt to climate change. Wild relatives of wheat serve as a vital reservoir of genetic diversity, offering traits that enhance its ...
Yusheng Zhao, Wenxuan Liu, Xiubin Tian   +2 more
exaly   +3 more sources

How Fast Was Wild Wheat Domesticated?

Science, 2006
Prehistoric cultivation of wild wheat in the Fertile Crescent led to the selection of mutants with indehiscent (nonshattering) ears, which evolved into modern domestic wheat. Previous estimates suggested that this transformation was rapid, but our analyses of archaeological plant remains demonstrate that indehiscent domesticates were slow to appear ...
Ken-Ichi, Tanno, George, Willcox
openaire   +2 more sources

Distribution of Wild Wheats and Barley

Science, 1966
If 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.
Jack R. Harlan, Daniel Zohary
openaire   +1 more source

Microsatellite analysis in cultivated hexaploid wheat and wild wheat relatives.

2001
Hexaploid 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, Henry, Robert J, Isaac, P G, Edwards, Keith J   +3 more
openaire   +2 more sources

Phylogeny of the a genomes of wild and cultivated wheat species

Russian Journal of Genetics, 2009
Diploid 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, E Ia, Kondratenko, A G, Blinov, N P, Goncharov   +3 more
openaire   +2 more sources

Gliadin polymorphism in wild and cultivated einkorn wheats

Theoretical and Applied Genetics, 1997
To 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, Dominici, L., Lafiandra, D.   +2 more
openaire   +3 more sources

Selectivity of Dicamba in Wheat and Wild Buckwheat

Weed Science, 1971
The 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
openaire   +1 more source

High Temperature Stress in Wild Wheats and Spring Wheats

Australian Journal of Plant Physiology, 1994
The 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.
openaire   +1 more source