Patterns of Abiotic Stress-Induced Homoeologous Gene Silencing in Hexaploid Wheat

2013 ◽  
Vol 199 (6) ◽  
pp. 466-469 ◽  
Author(s):  
A. Bottley
Keyword(s):  
Abiotic Stress ◽  
Gene Silencing ◽  
Hexaploid Wheat ◽  
Homoeologous Gene

scholarly journals Homoeologous gene silencing in hexaploid wheat

2006 ◽  
Vol 47 (6) ◽  
pp. 897-906 ◽  
Author(s):  
A. Bottley ◽  
G. M. Xia ◽  
R. M. D. Koebner
Keyword(s):  
Gene Silencing ◽  
Hexaploid Wheat ◽  
Homoeologous Gene

scholarly journals Variation for homoeologous gene silencing in hexaploid wheat

2008 ◽  
Vol 56 (2) ◽  
pp. 297-302 ◽  
Author(s):  
Andrew Bottley ◽  
Robert M.D. Koebner
Keyword(s):  
Gene Silencing ◽  
Hexaploid Wheat ◽  
Homoeologous Gene

scholarly journals Mining Fiskeby III and Mandarin (Ottawa) Expression Profiles to Understand Iron Stress Tolerant Responses in Soybean

2021 ◽  
Vol 22 (20) ◽  
pp. 11032
Author(s):  
Jamie A. O’Rourke ◽  
Michael J. Morrisey ◽  
Ryan Merry ◽  
Mary Jane Espina ◽  
Aaron J. Lorenz ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Iron Deficiency ◽  
Gene Silencing ◽  
Stress Tolerance ◽  
Abiotic Stresses ◽  
Yield Loss ◽  
Abiotic Stress Tolerance ◽  
Iron Stress ◽  
Rna Seq ◽  
Virus Induced Gene Silencing

The soybean (Glycine max L. merr) genotype Fiskeby III is highly resistant to a multitude of abiotic stresses, including iron deficiency, incurring only mild yield loss during stress conditions. Conversely, Mandarin (Ottawa) is highly susceptible to disease and suffers severe phenotypic damage and yield loss when exposed to abiotic stresses such as iron deficiency, a major challenge to soybean production in the northern Midwestern United States. Using RNA-seq, we characterize the transcriptional response to iron deficiency in both Fiskeby III and Mandarin (Ottawa) to better understand abiotic stress tolerance. Previous work by our group identified a quantitative trait locus (QTL) on chromosome 5 associated with Fiskeby III iron efficiency, indicating Fiskeby III utilizes iron deficiency stress mechanisms not previously characterized in soybean. We targeted 10 of the potential candidate genes in the Williams 82 genome sequence associated with the QTL using virus-induced gene silencing. Coupling virus-induced gene silencing with RNA-seq, we identified a single high priority candidate gene with a significant impact on iron deficiency response pathways. Characterization of the Fiskeby III responses to iron stress and the genes underlying the chromosome 5 QTL provides novel targets for improved abiotic stress tolerance in soybean.

scholarly journals An integrative approach to identify hexaploid wheat miRNAome associated with development and tolerance to abiotic stress

BMC Genomics ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Zahra Agharbaoui ◽  
Mickael Leclercq ◽  
Mohamed Amine Remita ◽  
Mohamed A Badawi ◽  
Etienne Lord ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Hexaploid Wheat ◽  
Integrative Approach

scholarly journals Evolutionary Divergence and Biased Expression of NAC Transcription Factors in Hexaploid Bread Wheat (Triticum aestivum L.)

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 382
Author(s):  
Jianhui Ma ◽  
Meng Yuan ◽  
Bo Sun ◽  
Daijing Zhang ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Transcription Factors ◽  
Abiotic Stress ◽  
Hexaploid Wheat ◽  
Evolutionary Divergence ◽  
Snp Analysis ◽  
Biotic And Abiotic Stress ◽  
Nac Transcription Factors ◽  
Group I ◽  
Wide Range

The NAC genes, a large plant-specific family of transcription factors, regulate a wide range of pathways involved in development and response to biotic and abiotic stress. In this study, the NAC transcription factors were identified in 27 green plants, and the results showed that NAC transcription factors in plants undergo an appearance stage from water to land and a number expansion stage from gymnosperm to angiosperm. Investigating the evolutionary process of the NAC transcription factors from diploid species to hexaploid wheat revealed that tandem replications during the polyploidization process is an important event for increasing the number of NAC transcription factors in wheat. Then, the molecular characteristics, phylogenetic relationships, and expression patterns of 462 NAC transcription factors of hexaploid wheat (TaNACs) were analyzed. The protein structure results showed that TaNAC was relatively conservative at the N-terminal that contains five subdomains. All these TaNACs were divided into Group I and Group II by phylogenetic analysis, and the TaNACs in Group I should undergo strong artificial selection based on single nucleotide polymorphism (SNP) analysis. Through genome synteny and phylogenetic analysis, these TaNACs were classified into 88 groups and 9 clusters. The biased expression results of these TaNACs showed that there are 24 groups and 67 groups of neofunctionalization genes under biotic and abiotic stress, respectively, and 16 groups and 59 groups of subfunctionalization genes. This shows that neofunctionalization plays an important role in coping with different stresses. Our study provides new insights into the evolution of NAC transcription factors in hexaploid wheat.

scholarly journals Homoeologous gene silencing in tissue cultured wheat callus

BMC Genetics ◽  
2008 ◽  
Vol 9 (1) ◽  
Author(s):  
Andrew Bottley ◽  
Natalie H Chapman ◽  
Robert MD Koebner
Keyword(s):  
Gene Silencing ◽  
Homoeologous Gene ◽  
Wheat Callus
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