Article
Agronomy
Wenjing Hu, Derong Gao, Sen Liao, Shunhe Cheng, Jizeng Jia, Weigang Xu
Summary: New QTLs for Fusarium head blight resistance and yield components were identified in wheat, and breeder-friendly markers were developed, providing opportunities for marker-assisted selection in wheat breeding for high-yielding varieties with enhanced disease resistance.
Article
Genetics & Heredity
Junqiao Song, Yuhui Pang, Chunping Wang, Xuecai Zhang, Zhankui Zeng, Dehui Zhao, Leiyi Zhang, Yong Zhang
Summary: In this study, the QTL associated with resistance to wheat head blight caused by Fusarium verticillioides (F.v) were mapped using genotype data from a population of 262 recombinant inbred lines (RILs) derived from Zhongmai 578 and Jimai 22. A total of 22 QTL were identified, with one novel QTL and one stable QTL detected. Forty-seven candidate genes related to disease resistance were found in the interval of the QTL. Genomic prediction accuracies for the disease traits were estimated using the cross-validation scheme.
FRONTIERS IN GENETICS
(2022)
Article
Plant Sciences
Wenjing Hu, Derong Gao, Yong Zhang, Xu Zheng, Chengbin Lu, Hongya Wu, Weigang Xu, Shunhe Cheng, Jizeng Jia
Summary: The genetic basis of resistance to Fusarium head blight (FHB) in wheat was studied in two elite cultivars using quantitative trait loci (QTL) mapping. It was found that there is a common QTL with a large effect on FHB resistance in both cultivars, and a novel QTL was identified in one of the populations. These resistance alleles do not affect plant height or flowering dates, and have been verified to be effective in other cultivars.
Article
Plant Sciences
Lingli Li, Yingjun Zhang, Yong Zhang, Ming Li, Dengan Xu, Xiuling Tian, Jie Song, Xumei Luo, Lina Xie, Desen Wang, Zhonghu He, Xianchun Xia, Yan Zhang, Shuanghe Cao
Summary: This study identified four QTL associated with PHS resistance in wheat, providing valuable genetic resources and breeding tools. Development of KASP markers and validation of their effectiveness in a test panel of cultivars offer new approaches for marker-assisted selection in wheat breeding.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Firdissa E. Bokore, Richard D. Cuthbert, Ron E. Knox, Colin W. Hiebert, Curtis J. Pozniak, Samia Berraies, Yuefeng Ruan, Brad Meyer, Pierre Hucl, Brent D. McCallum
Summary: This study aimed to identify and map the leaf rust resistance of six Canadian Western Red Spring wheat cultivars. Three doubled haploid populations were evaluated for seedling resistance and adult plant disease response and genotyped with a SNP array. Multiple QTL for leaf rust resistance were found in each population, with contributions from different cultivars. The results provide valuable information for resistance breeding and expanding our knowledge of leaf rust resistance genes in Canadian wheat.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Francis Fabre, Serge Urbach, Sylvie Roche, Thierry Langin, Ludovic Bonhomme
Summary: The study found that different wheat cultivars exhibit variations in susceptibility to Fusarium head blight (FHB), but share common characteristics in the core proteome. Susceptibility changes are mainly influenced by genotype-dependent factors, while shared molecular adjustments are independent of the aggressiveness of F. graminearum strains.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Firdissa E. Bokore, Ron E. Knox, Colin W. Hiebert, Richard D. Cuthbert, Ron M. DePauw, Brad Meyer, Amidou N'Diaye, Curtis J. Pozniak, Brent D. McCallum
Summary: Carberry is a widely grown spring wheat cultivar in Canada with high level of leaf rust resistance. The genetic basis of Carberry's resistance includes multiple genes, such as Lr46 and Lr34. Despite the evolution of virulence in the pathogen population towards other resistance genes, Carberry's resistance remains effective.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Zhankui Zeng, Cheng Guo, Xuefang Yan, Junqiao Song, Chunping Wang, Xiaoting Xu, Yuanfeng Hao
Summary: Seed vigor is an important trait in wheat breeding, and this study identified multiple quantitative trait loci (QTLs) associated with various seed vigor traits in a doubled haploid population derived from a cross between Yangmai 16 and Zhongmai 895. The QTLs were located on chromosomes 2B, 3D, 4B, 4D, 5A, 5B, 6A, 6B, 6D, 7A, and 7D, explaining significant portions of the phenotypic variances. The study also developed KASP markers for a QTL cluster on chromosome 4D and validated them in a panel of wheat accessions. These findings provide valuable genetic resources for improving seed vigor in wheat breeding programs.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Samia Berraies, Richard Cuthbert, Ron Knox, Arti Singh, Ron DePauw, Yuefeng Ruan, Firdissa Bokore, Maria Antonia Henriquez, Santosh Kumar, Andrew Burt, Curtis Pozniak, Amidou N'Diaye, Brad Meyer
Summary: This study aimed to map quantitative trait loci (QTL) responsible for the expression of FHB resistance in two adapted cultivars and evaluate their co-localization with agronomic traits. It was found that FHB resistance QTL co-localized with QTL for plant height, days to heading, and days to maturity. Selecting for improved FHB resistance within adapted cultivars can be done by using markers associated with complementary QTL.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agriculture, Multidisciplinary
Yang Meng-jiao, Wang Cai-rong, Muhammad Adeel Hassan, Wu Yu-ying, Xia Xian-chun, Shi Shu-bing, Xiao Yong-gui, He Zhong-hu
Summary: This study utilized 198 doubled haploid lines from a wheat cross to identify QTLs related to root traits and nitrogen uptake. Significant correlations were observed, and 12 new QTLs influencing root and biomass traits were discovered.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Article
Agronomy
Sheila M. P. Andrade, Guilherme R. Augusti, Gabriel F. Paiva, Heraldo R. Feksa, Dauri J. Tessmann, Franklin J. Machado, Eduardo S. G. Mizubuti, Emerson M. Del Ponte
Summary: The study characterized 225 strains of F. graminearum from two states in Brazil in regards to their response to two QoI fungicides. The median EC50 values for azoxystrobin and pyraclostrobin varied between the two populations, with no evidence of cross-resistance detected. The frequency of less-sensitive isolates increased over time in the RS state of Brazil.
Article
Agronomy
Nachaat Sakr
Summary: The study demonstrated that supplying silicon through soil and foliar applications can enhance the resistance of wheat against fungal diseases, particularly Fusarium head blight (FHB) pathogens. The application of silicon had a significant impact on moderately resistant wheat varieties, suggesting its potential as a valuable tool in disease management.
Article
Plant Sciences
Yike Liu, Guang Zhu, Zhangwang Zhu, Lin Chen, Hongli Niu, Weijie He, Hanwen Tong, Jinghan Song, Yuqing Zhang, Dongfang Ma, Chunbao Gao
Summary: In this study, 240 Chinese elite wheat cultivars and lines were evaluated for Fusarium seedling blight (FSB) resistance, with 23 accessions showing potential for FSB resistance breeding. Six stable quantitative trait loci (QTLs) were detected, with four KASP markers identified for marker-assisted selection. Analysis of defense-related genes revealed candidates for mapping QTLs, providing valuable resources for wheat breeding to enhance FSB resistance.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Zhankui Zeng, Dehui Zhao, Chunping Wang, Xuefang Yan, Junqiao Song, Peng Chen, Caixia Lan, Ravi P. Singh
Summary: This study evaluated the phenotypes of kernel traits and constructed a high-density genetic linkage map to identify related QTLs in a wheat RIL population. A total of 48 QTLs were identified, and the TaTKW-1A gene was found to be closely related to thousand-kernel weight. This study provides a basis for cloning functional genes underlying kernel traits and a reliable marker for molecular breeding.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
M. F. Franco, G. A. Lori, G. Cendoya, M. P. Alonso, J. S. Panelo, I Malbran, N. E. Mirabella, A. C. Pontaroli
Summary: In this study, the relationship between spike architecture traits and FHB Type II resistance in bread wheat was evaluated. It was found that the number of florets per spike and per spikelet were significantly associated with FHB severity and AUDPC, indicating a greater spread of the fungus in spikes with higher floret numbers. This suggests that consideration of spike architecture traits is important in FHB resistance breeding efforts.