scholarly journals A Genome-Wide Association Study Reveals a Rich Genetic Architecture of Flour Color-Related Traits in Bread Wheat

2018 ◽  
Vol 9 ◽  
Author(s):  
Shengnan Zhai ◽  
Jindong Liu ◽  
Dengan Xu ◽  
Weie Wen ◽  
Jun Yan ◽  
...  
Keyword(s):  
Association Study ◽  
Bread Wheat ◽  
Genetic Architecture ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Genome Wide ◽  
A Genome ◽  
Flour Color

scholarly journals Identification of Quantitative Trait Loci for Leaf Rust and Stem Rust Seedling Resistance in Bread Wheat Using a Genome-Wide Association Study

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 74
Author(s):  
Alibek Zatybekov ◽  
Yuliya Genievskaya ◽  
Aralbek Rsaliyev ◽  
Akerke Maulenbay ◽  
Gulbahar Yskakova ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Association Study ◽  
Leaf Rust ◽  
Bread Wheat ◽  
Stem Rust ◽  
Quantitative Trait ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Genome Wide ◽  
A Genome

In recent years, leaf rust (LR) and stem rust (SR) have become a serious threat to bread wheat production in Kazakhstan. Most local cultivars are susceptible to these rusts, which has affected their yield and quality. The development of new cultivars with high productivity and LR and SR disease resistance, including using marker-assisted selection, is becoming an important priority in local breeding projects. Therefore, the search for key genetic factors controlling resistance in all plant stages, including the seedling stage, is of great significance. In this work, we applied a genome-wide association study (GWAS) approach using 212 local bread wheat accessions that were phenotyped for resistance to specific races of Puccinia triticina Eriks. (Pt) and Puccinia graminis f. sp. tritici (Pgt) at the seedling stages. The collection was genotyped using a 20 K Illumina iSelect SNP assay, and 11,150 polymorphic SNP markers were selected for the association mapping. Using a mixed linear model, we identified 11 quantitative trait loci (QTLs) for five out of six specific races of Pt and Pgt. The comparison of the results from this GWAS with those from previously published work showed that nine out of eleven QTLs for LR and SR resistance had been previously reported in a GWAS study at the adult plant stages of wheat growth. Therefore, it was assumed that these nine common identified QTLs were effective for all-stage resistance to LR and SR, and the two other QTLs appear to be novel QTLs. In addition, five out of these nine QTLs that had been identified earlier were found to be associated with yield components, suggesting that they may directly influence the field performance of bread wheat. The identified QTLs, including novel QTLs found in this study, may play an essential role in the breeding process for improving wheat resistance to LR and SR.

scholarly journals Elucidating the Genetic Architecture of Fiber Quality in Hemp (Cannabis sativa L.) Using a Genome-Wide Association Study

2020 ◽  
Vol 11 ◽  
Author(s):  
Jordi Petit ◽  
Elma M. J. Salentijn ◽  
Maria-João Paulo ◽  
Christel Denneboom ◽  
Eibertus N. van Loo ◽  
...  
Keyword(s):  
Association Study ◽  
Genetic Architecture ◽  
Genome Wide Association Study ◽  
Cannabis Sativa ◽  
Fiber Quality ◽  
Genome Wide Association ◽  
Genome Wide ◽  
A Genome

scholarly journals Genome-wide association study for anther length in some elite bread wheat germplasm

2018 ◽  
Vol 54 (No. 3) ◽  
pp. 109-114 ◽  
Author(s):  
Song Xiaopeng ◽  
Feng Jie ◽  
Cui Zixia ◽  
Zhang Chuanliang ◽  
Sun Daojie
Keyword(s):  
Association Study ◽  
Bread Wheat ◽  
Genome Wide Association Study ◽  
Snp Array ◽  
Pollen Grains ◽  
Triticum Aestivum L ◽  
Genome Wide Association ◽  
Genome Wide ◽  
Anther Length ◽  
A Genome

The anther is a crucial organ for the development of the spike in bread wheat (Triticum aestivum L.). Long anthers contain large amounts of pollen grains; thus, they are favourable for cross-pollination and increase resilience against adverse environmental conditions. We conducted a genome-wide association study (GWAS) of anther length in 305 elite wheat lines evaluated during 2013–2015 in two locations and two growing seasons. The mapping panel was genotyped using a high-density Illumina iSelect 90K single nucleotide polymorphism (SNP) array. The GWAS used 18763 SNPs and identified 17 markers associated with anther length in wheat. The loci were mainly distributed across the chromosomes 3A, 3B and 7B. Further studies are required to determine if these are candidate genomic regions of anther length. In addition, anther length had high heritability, and positive correlations between anther length and grain weight per spike were observed.  

scholarly journals Genome-wide association study reveals sex-specific genetic architecture of facial attractiveness

2018 ◽  
Author(s):  
Bowen Hu ◽  
Ning Shen ◽  
James J. Li ◽  
Hyunseung Kang ◽  
Jinkuk Hong ◽  
...  
Keyword(s):  
Association Study ◽  
Genetic Architecture ◽  
Genetic Basis ◽  
Genome Wide Association Study ◽  
Genetic Correlations ◽  
Facial Attractiveness ◽  
Genome Wide Association ◽  
Hormone Synthesis ◽  
Genome Wide ◽  
A Genome

AbstractFacial attractiveness is a complex human trait of great interest in both academia and industry. Literature on sociological and phenotypic factors associated with facial attractiveness is rich, but its genetic basis is poorly understood. In this paper, we conducted a genome-wide association study to discover genetic variants associated with facial attractiveness using 3,928 samples in the Wisconsin Longitudinal Study. We identified two genome-wide significant loci and highlighted a handful of candidate genes, many of which are specifically expressed in human tissues involved in reproduction and hormone synthesis. Additionally, facial attractiveness showed strong and negative genetic correlations with BMI in females and with blood lipids in males. Our analysis also suggested sex-specific selection pressure on variants associated with lower male attractiveness. These results revealed sex-specific genetic architecture of facial attractiveness and provided fundamental new insights into its genetic basis.

scholarly journals Dissection of the Genetic Architecture of Rice Tillering using a Genome-wide Association Study

Rice ◽  
2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Su Jiang ◽  
Dan Wang ◽  
Shuangyong Yan ◽  
Shiming Liu ◽  
Bin Liu ◽  
...  
Keyword(s):  
Association Study ◽  
Genetic Architecture ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Genome Wide ◽  
A Genome
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