Monosomic analysis of heading date and spikelet number in the common wheat (Triticum aestivum L.) multispikelet line ?Noa?

1987 ◽  
Vol 74 (4) ◽  
pp. 487-492 ◽  
Author(s):  
E. Millet
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Heading Date ◽  
Triticum Aestivum L ◽  
Monosomic Analysis ◽  
Spikelet Number ◽  
The Common

Pleiotropic QTL influencing spikelet number and heading date in common wheat (Triticum aestivum L.)

2020 ◽  
Vol 133 (6) ◽  
pp. 1825-1838
Author(s):  
Zhaoyan Chen ◽  
Xuejiao Cheng ◽  
Lingling Chai ◽  
Zihao Wang ◽  
Dejie Du ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Heading Date ◽  
Triticum Aestivum L ◽  
Spikelet Number ◽  
Pleiotropic Qtl

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.

scholarly journals Characterization of the common wheat (Triticum aestivum L.) mutation line producing three pistils in a floret

Hereditas ◽  
2004 ◽  
Vol 141 (1) ◽  
pp. 15-18 ◽  
Author(s):  
ZHENG-SONG PENG ◽  
JUN YANG ◽  
SHU-HONG WEI ◽  
JIAN-HONG ZENG
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Triticum Aestivum L ◽  
The Common

scholarly journals TaGW2L, a GW2-like RING finger E3 ligase, positively regulates heading date in common wheat (Triticum aestivum L.)

2022 ◽  
Author(s):  
Daijing Zhang ◽  
Xiaoxu Zhang ◽  
Wu Xu ◽  
Tingting Hu ◽  
Jianhui Ma ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Heading Date ◽  
Ring Finger ◽  
E3 Ligase ◽  
Triticum Aestivum L

Genes for stem rust resistance in Thatcher wheat

2009 ◽  
Vol 89 (6) ◽  
pp. 1003-1008
Author(s):  
D R Knott
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Stem Rust ◽  
Rust Resistance ◽  
Triticum Aestivum L ◽  
Stem Rust Resistance ◽  
Puccinia Graminis ◽  
Genetic Studies ◽  
Number Of Genes ◽  
The Common

The common wheat (Triticum aestivum L.) cultivar Thatcher has resistance to many of the older races of stem rust (Puccinia graminis Pers. f. sp. tritici Eriks. & Henn.). Several genetic studies have shown that its resistance is complex in inheritance. To attempt to clarify the inheritance, 28 lines, each believed to carry a single resistance gene from Thatcher, were developed. The lines were tested with 13 races of stem rust. They fell into 13 types with resistance to from 1 to 11 races. Of the five genes previously identified in Thatcher, only two, Sr9g, and Sr12, were present in the lines. Four lines carried named genes, Sr6, Sr7a, Sr8a and S9d, which had not previously been detected in Thatcher. Thatcher is resistant to 8 of the 13 races. At least one line was resistant to each of the 13 races, including the five to which Thatcher is susceptible. Eleven of the 13 types of lines were resistant to race MCCD to which Thatcher is resistant. Seven of the types were resistant to race TMRT(15B-1) to which Thatcher is susceptible. Clearly, the inheritance of resistance in Thatcher is very complex and involves a considerable number of genes. It carries a surprising number of genes that appear to be hidden by the presence of suppressor genes or transposons.Key words: Common wheat, Triticum aestivum, Puccinia graminis, suppressors, tansposons

Evidence for the multiplicity of alleles at Vrn1, the winter–spring habit locus in common wheat

1984 ◽  
Vol 26 (2) ◽  
pp. 191-193 ◽  
Author(s):  
D. W. A. Roberts ◽  
M. D. MacDonald
Keyword(s):  
Triticum Aestivum ◽  
Key Words ◽  
Common Wheat ◽  
Triticum Aestivum L ◽  
Substitution Lines ◽  
Chromosome 5A ◽  
The Common

Changes in the number of days to first emergence of the spike head with increasing duration of vernalization were examined in the common wheats (Triticum aestivum L.) 'Rescue,' 'Winalta,' 'Kharkov 22 MC,' and the disomic substitution lines of 'Winalta' and 'Kharkov 22 MC possessing the 5A chromosome from 'Rescue.' The data suggest the existence of three Vrn1 alleles in addition to the Vrn1 allele which occurs in 'Cadet.'Key words: vernalization, Triticum, Vrn alleles, chromosome 5A.

scholarly journals Identification and Validation of a QTL for Spikelet Number on Chromosome Arm 6BL of Common Wheat (Triticum Aestivum L.)

2021 ◽  
Author(s):  
Andrew Katz ◽  
Patrick Byrne ◽  
Scott Reid ◽  
Sarah Bratschun ◽  
Scott Haley ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Great Plains ◽  
Positional Cloning ◽  
Heading Date ◽  
Triticum Aestivum L ◽  
The United States ◽  
World Population ◽  
Spikelet Number ◽  
Wheat Varieties ◽  
Chromosome Arm

Abstract To provide food security for a growing world population, it will be necessary to increase yields of staple crops such as wheat (Triticum aestivum L.). Yield is a complex, polygenic trait influenced by grain weight and number, which are negatively correlated with one another. Spikelet number is an important determinant of grain number, but allelic variants impacting its expression are often associated with heading date, constraining their use in wheat germplasm that must be adapted for specific environments. Identification and characterization of genetic variants affecting spikelet number will increase selection efficiency through their deployment in breeding programs.In this study, a quantitative trait locus (QTL) on chromosome arm 6BL for spikelet number was identified and validated using an association mapping panel, a recombinant inbred line population, and seven derived heterogeneous inbred families. The superior allele, QSn.csu-6Bb, was associated with an increase of 0.248 to 0.808 spikelets per spike across multiple environments that varied for mean spikelet number. Despite epistatic interactions between QSn.csu-6B and three other loci (WAPO-A1, VRN-D3 and PPD-B1), genotypes with a greater number of superior alleles at these loci consistently exhibit higher spikelet number. The frequency of superior alleles at these loci varies among winter wheat varieties adapted to different latitudes of the United States Great Plains, revealing opportunities for breeders to select for increased spikelet number using simple molecular markers. This work lays the foundation for the positional cloning of the genetic variant underlying the QSn.csu-6B QTL to strengthen our understanding of spikelet number determination in wheat.

GENETIC INHIBITION OF EXPRESSION OF RESISTANCE GENE Lr23 IN WHEAT TO Puccinia recondita

1982 ◽  
Vol 62 (1) ◽  
pp. 219-220 ◽  
Author(s):  
P. L. DYCK
Keyword(s):  
Triticum Aestivum ◽  
Leaf Rust ◽  
Resistance Gene ◽  
Common Wheat ◽  
Triticum Aestivum L ◽  
Puccinia Recondita ◽  
Seedling Resistance ◽  
Experimental Line ◽  
The Common

The common wheat (Triticum aestivum L.) experimental line Prelude/8* Marquis was determined to have a gene that inhibits the expression of gene Lr23 for seedling resistance to leaf rust (Puccinia recondita Rob. ex. Desm.) whereas the cultivar Prelude does not. This inhibitor had previously been reported in the cultivar Thatcher.

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