scholarly journals A Single Nucleotide Deletion in the Third Exon of FT‐D1 Increases the Spikelet Number and Delays Heading Date in Wheat ( Triticum aestivum L.)

2022 ◽  
Author(s):  
Zhaoyan Chen ◽  
Wensheng Ke ◽  
Fei He ◽  
Lingling Chai ◽  
Xuejiao Cheng ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Heading Date ◽  
Triticum Aestivum L ◽  
Spikelet Number ◽  
Single Nucleotide ◽  
Single Nucleotide Deletion ◽  
Nucleotide Deletion ◽  
The Third

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 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.

scholarly journals A novel cryptic exon in intron 3 of the dystrophin gene was incorporated into dystrophin mRNA with a single nucleotide deletion in exon 5

2002 ◽  
Vol 47 (4) ◽  
pp. 196-201 ◽  
Author(s):  
R. Suminaga ◽  
Y. Takeshima ◽  
K. Adachi ◽  
M. Yagi ◽  
H. Nakamura ◽  
...  
Keyword(s):  
Dystrophin Gene ◽  
Single Nucleotide ◽  
Single Nucleotide Deletion ◽  
Cryptic Exon ◽  
Nucleotide Deletion

A single nucleotide deletion at the C1 inhibitor gene as the cause of hereditary angioedema: insights from a Brazilian family

Allergy ◽  
2011 ◽  
Vol 66 (10) ◽  
pp. 1384-1390 ◽  
Author(s):  
M. F. Ferraro ◽  
A. S. Moreno ◽  
E. C. Castelli ◽  
E. A. Donadi ◽  
M. S. Palma ◽  
...  
Keyword(s):  
Hereditary Angioedema ◽  
C1 Inhibitor ◽  
Single Nucleotide ◽  
Single Nucleotide Deletion ◽  
Nucleotide Deletion ◽  
Inhibitor Gene

scholarly journals Marker-trait associations of yield related traits in bread wheat (Triticum aestivum L.) under a semi-arid climate

2019 ◽  
Vol 55 (No. 4) ◽  
pp. 138-145 ◽  
Author(s):  
Salem Marzougui ◽  
Mohamed Kharrat ◽  
Mongi ben Younes
Keyword(s):  
Triticum Aestivum ◽  
Bread Wheat ◽  
Heading Date ◽  
Triticum Aestivum L ◽  
Pleiotropic Effect ◽  
Arid Climate ◽  
Log P ◽  
Spring Bread Wheat ◽  
Semi Arid ◽  
Trait Associations

Identifying QTLs (quantitative trait loci) that control yield related traits under a stressed environment is very useful for marker-assisted selection (MAS). Marker-trait associations (MTA) for several agro-morphological traits were performed with 130 Tunisian and exotic spring bread wheat (Triticum aestivum L.) accessions under a semi-arid climate in El Kef, Tunisia. Grain yield and other important traits were evaluated. A population structural analysis identified two sub populations. In total, 29 MTAs were detected at –log P ≥ 3 using an MLM (mixed linear model), and only 5 MTAs with –log P ≥ 4. The locus on chromosome 4A was detected to control the heading date accounting for up to 22% of the trait variance. Two other loci located on chromosomes 3B and 7B were found to be stable during the two cropping seasons and have a pleiotropic effect on the heading date, yield, internodes length and grain per spike. These two regions are candidates for further genetic analysis.  

31-OR: Single Nucleotide Deletion on Exon 2 Causes a Novel Null DRB1*01 Allele

2010 ◽  
Vol 71 ◽  
pp. S132
Author(s):  
Andrea A. Zimmerman ◽  
Laura K. Spruit ◽  
Walter F. Herczyk ◽  
Janine M. Ternes ◽  
Jerome G. Weidner ◽  
...  
Keyword(s):  
Single Nucleotide ◽  
Exon 2 ◽  
Single Nucleotide Deletion ◽  
Nucleotide Deletion
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