The wheat species: A critique

1930 ◽  
Vol 23 (2) ◽  
pp. 173-263 ◽  
Author(s):  
A. E. Watkins
Keyword(s):  
Wheat Species

scholarly journals The Independent Domestication of Timopheev’s Wheat: Insights from Haplotype Analysis of the Brittle rachis 1 (BTR1-A) Gene

Genes ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 338
Author(s):  
Moran Nave ◽  
Mihriban Taş ◽  
John Raupp ◽  
Vijay K. Tiwari ◽  
Hakan Ozkan ◽  
...  
Keyword(s):  
Promoter Region ◽  
Haplotype Analysis ◽  
Common Ancestor ◽  
Triticum Turgidum ◽  
Tetraploid Wheat ◽  
Wheat Species ◽  
Loss Of Function ◽  
Brittle Rachis ◽  
Gene Level ◽  
Large Panel

Triticum turgidum and T. timopheevii are two tetraploid wheat species sharing T. urartu as a common ancestor, and domesticated accessions from both of these allopolyploids exhibit nonbrittle rachis (i.e., nonshattering spikes). We previously described the loss-of-function mutations in the Brittle Rachis 1 genes BTR1-A and BTR1-B in the A and B subgenomes, respectively, that are responsible for this most visible domestication trait in T. turgidum. Resequencing of a large panel of wild and domesticated T. turgidum accessions subsequently led to the identification of the two progenitor haplotypes of the btr1-A and btr1-B domesticated alleles. Here, we extended the haplotype analysis to other T. turgidum subspecies and to the BTR1 homologues in the related T. timopheevii species. Our results showed that all the domesticated wheat subspecies within T. turgidum share common BTR1-A and BTR1-B haplotypes, confirming their common origin. In T. timopheevii, however, we identified a novel loss-of-function btr1-A allele underlying a partially brittle spike phenotype. This novel recessive allele appeared fixed within the pool of domesticated Timopheev’s wheat but was also carried by one wild timopheevii accession exhibiting partial brittleness. The promoter region for BTR1-B could not be amplified in any T. timopheevii accessions with any T. turgidum primer combination, exemplifying the gene-level distance between the two species. Altogether, our results support the concept of independent domestication processes for the two polyploid, wheat-related species.

Evaluation of puroindoline b as a house keeping gene in wild wheat species

2011 ◽  
Vol 22 ◽  
pp. S145
Author(s):  
Erdogan Esref Hakki ◽  
Songul Uygan ◽  
Mehmet Hamurcu ◽  
Sait Gezgin ◽  
Buket Serife Bozkurt ◽  
...  
Keyword(s):  
Wheat Species ◽  
Wild Wheat

scholarly journals Using genic sequence capture in combination with a syntenic pseudo genome to map a deletion mutant in a wheat species

2014 ◽  
Vol 80 (5) ◽  
pp. 895-904 ◽  
Author(s):  
Laura‐Jayne Gardiner ◽  
Piotr Gawroński ◽  
Lisa Olohan ◽  
Thorsten Schnurbusch ◽  
Neil Hall ◽  
...  
Keyword(s):  
Deletion Mutant ◽  
Wheat Species ◽  
Sequence Capture

Phylogeny of the a genomes of wild and cultivated wheat species

2009 ◽  
Vol 45 (11) ◽  
pp. 1360-1367 ◽  
Author(s):  
K. A. Golovnina ◽  
E. Ya. Kondratenko ◽  
A. G. Blinov ◽  
N. P. Goncharov
Keyword(s):  
Wheat Species

scholarly journals Tissue culture efficiency of wheat species with different genomic formulas

2016 ◽  
Vol 16 (4) ◽  
pp. 307-314 ◽  
Author(s):  
Оlga Alikina ◽  
Mariya Chernobrovkina ◽  
Sergey Dolgov ◽  
Dmitry Miroshnichenko
Keyword(s):  
Tissue Culture ◽  
Wheat Species

scholarly journals Analysis of Glu-1 loci in samples of rare wheat species and their hybrides

2018 ◽  
Vol 23 ◽  
pp. 120-125
Author(s):  
S. M. Sichkar ◽  
L. H. Velykozhon ◽  
O. V. Dubrovna ◽  
B. V. Morgun
Keyword(s):  
Bread Wheat ◽  
Hexaploid Wheat ◽  
Pcr Analysis ◽  
Dasypyrum Villosum ◽  
Wheat Species ◽  
Triticum Spelta ◽  
Spring Bread Wheat ◽  
Breeding Work ◽  
Allele Composition

Aim. Determination of the allelic composition of Glu-1 loci in samples of rare wheat species and their hybrids with spring bread wheat. Methods. PCR analysis. Results. In existing collection samples of the rare wheat species the alleles of the a/c loci Glu-A1 were found, while allele b was found only in T.dicoccum, var. volgense (Emmer Kokchetavskaya). An additional amplicon with a length of 450 bp was found in the Glu-A1 locus in the sample (T. dicoccum × Dasypyrum villosum), and in (Ae. ventricosa × T. dicoccum) another one a length of 700 bp in genome B, was found require further research. Among hexaploid wheat, it was revealed genotypes differing in the presence of alleles a and d of the locus Glu-D1. The hybridity of the received forms has been confirmed, as evidenced by the identification of both parent components in the hybrids or alleles of the Glu-D1 locus of bread wheat in hybrids with emmer. Conclusions. Analysis of the allele composition of Glu1 locuses in samples of rare wheat species and their hybrids with bread wheat allowed to select genotypes and hybrid combinations that may be promising for further breeding work. Keywords: Triticum spelta L., T. dicoccum, hybrids, PCR analysis, Glu-1 locus.

scholarly journals DETERMINATION OF THE METAL CONTENT IN SOME FLOURS AND PASTES OBTAINED FROM DIFFERENT WHEAT SPECIES

1970 ◽  
Vol 62 ◽  
Author(s):  
Nicoleta Diana Raba ◽  
Iosif Gherhen ◽  
Florina Furdi
Keyword(s):  
Triticum Aestivum ◽  
Atomic Absorption ◽  
Spectrophotometric Method ◽  
Triticum Durum ◽  
Metal Content ◽  
Wheat Species ◽  
Triticum Spelta ◽  
Basic Composition ◽  
Different Types

In the present paper, we followed to determine the metal content in some different types of flour obtained from different wheat species, and in several pastes that contain flour made out of the Triticum aestivum, Triticum durum si Triticum spelta wheat species in their basic composition. In order to do this we have analyzed 10 samples: 2 flours and 8 pastes harvested from random stores, belonging to different local and foreign manufacturers. In the same time, we tryed to identify the wheat species used to produce the pastes, analyzing them depending on the metal content. The determination has been realysed using the atomic absorption spectrophotometric method, the analyzed metals being: Cu, Zn, Mn, Fe, Ca, Mg, K şi Na.

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