Recombination of gliadin genes of chromosome 1D in the common wheat hybrid carrying the introgression from Aegilops cylindrica

2003 ◽  
Vol 122 (1) ◽  
pp. 86-88 ◽  
Author(s):  
N. A. Kozub ◽  
I. A. Sozinov ◽  
A. A. Sozinov
Keyword(s):  
Common Wheat ◽  
Aegilops Cylindrica ◽  
Wheat Hybrid ◽  
The Common

scholarly journals Use of synthetic form Triticum miguschovae Zhir in common wheat breeding

2020 ◽  
Author(s):  
R.O. Davoyan ◽  
◽  
I.V. Bebyakina ◽  
E.R. Davoyan ◽  
V.A. Bibishev ◽  
...  
Keyword(s):  
Leaf Rust ◽  
Common Wheat ◽  
Dna Analysis ◽  
Yellow Rust ◽  
Leaf Rust Resistance ◽  
Wheat Breeding ◽  
Winter Wheat Cultivars ◽  
The Common ◽  
Rust Resistance Genes ◽  
Leaf Rust Resistance Genes

T. miguschovae (GGAADD) was used as a “genetic bridge” to transfer valuable traits to the common wheat instead T. militina and Ae. tauschii. Lines with resistance to leaf rust, yellow rust and powdery mildew, as well as with high protein content (17–18 %) were selected. The lines with translocation Т2BL.2BS-2GL, 5BS.5BL-5GL, T6BS.6BL-6GL and substitution of chromosomes 1D(1Dt), 4D(4Dt), 5D(5Dt), 6D(6Dt) were identified. DNA analysis revealed that the lines can carry leaf rust resistance genes that are different from the known Lr39 and Lr50. Introgression lines have been successfully used in breeding. Five common winter wheat cultivars are developed.

scholarly journals Genotypic variability for salt stress tolerance among wild and cultivated wheat germplasms at an early development stage

2019 ◽  
Vol 4 (1) ◽  
pp. 375-380
Author(s):  
Imen Klay ◽  
Leila Riahi ◽  
Hajer Slim Amara ◽  
Abderrazak Daaloul
Keyword(s):  
Salt Stress ◽  
Stress Tolerance ◽  
Common Wheat ◽  
Triticum Turgidum ◽  
Wheat Variety ◽  
Development Stage ◽  
Salt Stress Tolerance ◽  
Wheat Varieties ◽  
The Common ◽  
Photosynthetic Traits

AbstractThis study was conducted to evaluate the variability of salt tolerance potentials among nine wheat genotypes representing wild and cultivated species namely Triticum turgidum subsp. durum, Triticum aestivum and Aegilops geniculata. Ionomic and photosynthetic traits were used for the screening of the studied samples when faced with four salinity levels of NaCl (0, 50, 100 and 150 mM) under green house conditions at the seedling stage. The investigated genotypes exhibited different levels of salt stress tolerance. Ionomic and photosynthetic traits underline the distinctiveness of the common wheat varieties which highlighted particular performances under salt stress conditions and showed higher tolerance potentials among the studied genotypes. Interestingly, the Vaga variety showed more ability to maintain higher K+/Na+ ratios and Pq coefficients compared with the control conditions and stable Fv/F0 and Fv/Fm ratios. Stable behaviour was exhibited by wild Aegilops accessions while durum wheat varieties have been shown to be more sensitive to salt stress. Further investigations were required for the common wheat variety Vaga, which could be useful for successful breeding and biotechnological improvement strategies concerning wheat species.

FREQUENCY OF MICRONUCLEI IN POLLEN QUARTETS OF COMMON WHEAT MONOSOMICS

1952 ◽  
Vol 30 (4) ◽  
pp. 371-378 ◽  
Author(s):  
J. W. Morrison ◽  
John Unrau
Keyword(s):  
Cell Wall ◽  
Common Wheat ◽  
Chinese Spring ◽  
Wheat Variety ◽  
Early Developmental Stage ◽  
D Genome ◽  
Distinct Cell ◽  
The Common ◽  
Early Developmental ◽  
Common Wheat Variety

The frequency with which 20 different monosomes of the common wheat variety, Chinese Spring, formed micronuclei in pollen quartets was determined. It was found that unless the study was made at an early developmental stage characterized by a distinct cell wall surrounding the quartets, the counts were unreliable, because some micronuclei were lost. The frequency of micronucleus formation was similar for anthers of a floret, florets of a spike, and plants of a monosome. Among the monosomes studied, there were three groups of three and four of two in which the total frequency of quartets with micronuclei, and the distribution of numbers of micronuclei per quartet, were strikingly similar. In the case of the groups of three, two monosomes were from the A and B genomes while one was from the D genome. This is interpreted as evidence of homoeology of chromosomes of a group and also that such chromosomes have undergone less change than those that do not form such series.

A cytogenetic study of the blue-grain line of the common wheat cultivar Saratovskaya 29

2012 ◽  
Vol 48 (8) ◽  
pp. 785-791 ◽  
Author(s):  
V. S. Arbuzova ◽  
E. D. Badaeva ◽  
T. T. Efremova ◽  
T. S. Osadchaya ◽  
N. V. Trubacheeva ◽  
...  
Keyword(s):  
Common Wheat ◽  
Wheat Cultivar ◽  
Cytogenetic Study ◽  
Common Wheat Cultivar ◽  
The Common

scholarly journals A High-Density Genetic Map with Array-Based Markers Facilitates Structural and Quantitative Trait Locus Analyses of the Common Wheat Genome

DNA Research ◽  
2014 ◽  
Vol 21 (5) ◽  
pp. 555-567 ◽  
Author(s):  
Julio Cesar Masaru Iehisa ◽  
Ryoko Ohno ◽  
Tatsuro Kimura ◽  
Hiroyuki Enoki ◽  
Satoru Nishimura ◽  
...  
Keyword(s):  
Quantitative Trait Locus ◽  
Common Wheat ◽  
Genetic Map ◽  
Quantitative Trait ◽  
High Density ◽  
Wheat Genome ◽  
The Common ◽  
Trait Locus

ANEUPLOID ANALYSIS OF A GENE FOR LEAF RUST RESISTANCE DERIVED FROM THE COMMON WHEAT CULTIVAR TERENZIO

1981 ◽  
Vol 23 (3) ◽  
pp. 405-409 ◽  
Author(s):  
P. L. Dyck ◽  
E. R. Kerber
Keyword(s):  
Leaf Rust ◽  
Common Wheat ◽  
Rust Resistance ◽  
Wheat Cultivar ◽  
Leaf Rust Resistance ◽  
Triticum Aestivum L ◽  
Backcross Line ◽  
The Common ◽  
Aneuploid Analysis ◽  
Leaf Rust Resistance Genes

The LrT gene for resistance to leaf rust present in the common wheat (Triticum aestivum L.) backcross line RL 6049, and originally derived from the cultivar Terenzio, was shown to be on chromosome 4B. Farther analysis indicated that it is on the long arm of this chromosome, 2.9 ± 1.3 crossover units from the centromere. It is independent of or loosely linked with Sr7a, a gene for stem rust resistance known to be on the long arm of chromosome 4B. It is inherited independently of leaf rust resistance genes Lr1, Lr2a, Lr3, Lr10, Lr14b, Lr16, Lr17 and Lr18. LrT has been redesignated Lr30.

scholarly journals Variabilitatea genotipurilor de colecţie de grâu (Triticum aestivum L.) în baza sensibilităţii la unele maladii fungice

2021 ◽  
Author(s):  
Nicolae Cristea ◽  
◽  
Galina Lupascu ◽  
Svetlana Gavzer ◽  
◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Triticum Aestivum L ◽  
Brown Rust ◽  
Fungal Diseases ◽  
Extreme Drought ◽  
Initial Material ◽  
Breeding Programs ◽  
Wheat Genotypes ◽  
The Common

The common wheat genotypes under study showed a differentiated variability in terms of suscep-tibility to septoria, brown rust, spike fusariosis, which made it possible to differentiate them into clusters and identify those with higher resistance to these diseases. Based on the assessments from 2020-2021, the varieties Trubion, Numitor, Urbanus, Python, Miranda, Centurion, Amor, Aneta, Neven, Messino, Nasnaga, Tika-Taka, Judița, Avenue, Speranța, Dacia, Transilvania, Selania, Avânt which have shown resistance to extreme drought, fungal diseases and high indices of the spike productivity elements can be recommended as the initial material for the breeding programs.

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