Article
Plant Sciences
Hongna Li, Lei Hua, Matthew N. Rouse, Tianya Li, Shuyong Pang, Shengsheng Bai, Tao Shen, Jing Luo, Hongyu Li, Wenjun Zhang, Xiaodong Wang, Jorge Dubcovsky, Shisheng Chen
Summary: In this study, a stem rust resistance gene SrKN was mapped and characterized from the durum wheat variety Kronos. The gene confers resistance to multiple virulent Pgt races and was mapped to chromosome 2B. Through a large mapping population, SrKN was located within a 0.29 cM region containing nucleotide binding leucine-repeat (NLR) genes that may include the candidate gene. An allelism test suggested that SrKN and the previously mapped Sr9e gene may represent the same gene. SrKN was introgressed into common wheat and completely linked markers were developed for accelerated deployment in wheat breeding programs.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Xiangxi Zhuansun, Junna Sun, Nannan Liu, Shengnan Zhang, Huifang Wang, Zhaorong Hu, Jun Ma, Qixin Sun, Chaojie Xie
Summary: Epidemics of leaf rust pose a threat to wheat production. The discovery of the leaf rust resistance gene LrOft in the durum wheat cultivar Ofanto provides a potential solution. Fine mapping identified a suppressor locus for LrOft on chromosome arm 2AS, narrowing down the potential candidate genes.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Yan Ren, Xiaonan Sun, Jingyun Nie, Peng Guo, Xiaohui Wu, Yixiao Zhang, Mengjuan Gao, Mohsin Niaz, Xia Yang, Congwei Sun, Ning Zhang, Feng Chen
Summary: This study aimed to identify QTLs associated with flag leaf senescence in wheat. Bulked segregant analysis using the wheat 660K SNP array identified 3225 SNPs between extreme-phenotype bulks. Based on InDel markers and gene expression analysis, two major QTLs were identified. This study has potential for cloning key genes and marker-assisted breeding for flag leaf senescence.
MOLECULAR BREEDING
(2023)
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
Genetics & Heredity
Daniela Marone, Elisabetta Mazzucotelli, Oadi Matny, Francesca Desiderio, Giuseppe Sciara, Marco Maccaferri, Ilaria Marcotuli, Agata Gadaleta, Brian Steffenson, Anna Maria Mastrangelo
Summary: Stem rust, caused by the fungus Puccinia graminis f. sp. tritici (Pgt), is a devastating fungal disease affecting wheat worldwide. This study identified 14 QTLs associated with stem rust resistance in different segregating populations. The QTLs were found on chromosomes 3A, 4A, 6A, and 6B, some of which overlapped with previously identified resistance loci. Novel genes or alleles for stem rust resistance may be present on chromosomes 3A and 6B.
Article
Plant Sciences
Julio Huerta-Espino, Ravi P. Singh, Hector Eduardo Villasenor-Mir, Karim Ammar
Summary: In this study, 482 tetraploid wheat accessions were screened for resistance to leaf rust disease. Among them, 79 genotypes showed resistance to all tested leaf rust races in the seedling stage. The potential of these resistant genotypes in breeding programs was evaluated.
Article
Agronomy
Dinushika Thambugala, Mallorie K. Lewarne, Brent D. McCallum, Andriy Bilichak, Colin W. Hiebert, Curt A. McCartney
Summary: Incorporating the Lr2a resistance gene into high-yielding wheat cultivars has been an effective method of disease control. In this study, the Lr2a gene was genetically mapped to the 2DS chromosome arm in three populations, and DNA markers were developed to facilitate its use in wheat breeding programs.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Plant Sciences
Mathieu Deblieck, Frank Ordon, Albrecht Serfling
Summary: Wheat leaf rust is a significant fungal disease of wheat, and its control measures often break down when the virulence pattern of the fungus changes. In contrast, einkorn wheat shows prehaustorial resistance, which is not dependent on the specific race of the pathogen. By analyzing the genetic population of einkorn wheat, a major QTL associated with resistance was identified, and a specific gene involved in a hypersensitive defense reaction was found within this QTL interval.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Qiang Zhang, Wenxin Wei, Xiangxi Zuansun, Shengnan Zhang, Chen Wang, Nannan Liu, Lina Qiu, Weidong Wang, Weilong Guo, Jun Ma, Huiru Peng, Zhaorong Hu, Qixin Sun, Chaojie Xie
Summary: In this study, the location of the leaf rust resistance gene Lr65 was determined using two larger segregating populations, and a high-resolution genetic linkage map was constructed, providing a solid foundation for map-based cloning of Lr65 and facilitating marker-assisted selection.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Martin Chemonges, Liezel Herselman, Zacharias A. Pretorius, Matthew N. Rouse, Ansori Mare, Willem H. P. Boshoff
Summary: Four South African winter wheat cultivars express resistance to Puccinia graminis f. sp. tritici (Pgt), which is controlled by a single dominant gene located on the short arm of chromosome 6D. In addition, SNP marker BS00085937 and SSR markers psp3200 and wms4862 can be used to predict stem rust resistance among 55 South African genotypes.
Article
Agronomy
Jianian Zhou, Xiaochen Zheng, Xiao Zhong, Wenjing Tan, Chunhua Ma, Yuqi Wang, Ran Tian, Suizhuang Yang, Xin Li, Chongjing Xia, Zhensheng Kang, Xianming Chen, Xinli Zhou
Summary: In this study, four Chinese wheat cultivars were crossed with PI 660,060, a wheat line carrying the Yr62 gene for high-temperature adult-plant resistance to wheat stripe rust. After several generations of breeding, nine wheat lines with good agronomic traits and disease resistance were successfully selected. These selected lines provide material support for future breeding of wheat for stripe rust resistance.
MOLECULAR BREEDING
(2023)
Review
Agronomy
Elena Gultyaeva, Ekaterina Shaydayuk, Philipp Gannibal
Summary: Winter wheat is mainly grown in the North Caucasian, Central Black Earth, and Central agroecological regions in Russia, while spring wheat dominates in the Urals, Volga region, and Western Siberia. Wheat leaf rust, caused by Puccinia triticina, is an important disease affecting wheat production. Research shows that the evolution of the wheat leaf rust pathogen occurs more frequently in regions where pathotype-specific resistance cultivars are commonly grown.
Article
Agronomy
Peipei Zhang, Xiaocui Yan, Takele-Weldu Gebrewahid, Yue Zhou, Ennian Yang, Xianchun Xia, Zhonghu He, Zaifeng Li, Daqun Liu
Summary: A genome-wide association analysis identified multiple loci associated with resistance to leaf rust and stripe rust at both seedling and adult plant stages. Potential new loci were discovered, providing valuable information for wheat breeding.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Plant Sciences
Weixiu Hou, Qisen Lu, Lin Ma, Xiaonan Sun, Liyan Wang, Jingyun Nie, Peng Guo, Ti Liu, Zaifeng Li, Congwei Sun, Yan Ren, Xiaodong Wang, Jian Yang, Feng Chen
Summary: This study identified four quantitative trait loci associated with adult-plant resistance to leaf rust in wheat, and discovered a key gene that enhances resistance to leaf rust.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Elena Gultyaeva, Ekaterina Shaydayuk
Summary: The significance of yellow rust caused by Puccinia striiformis (Pst) has increased worldwide, including in Russia. The study aimed to explore the yellow rust resistance potential of modern common winter wheat cultivars included in the Russian Register of Breeding Achievements. The research found that some cultivars had multiple resistance genes, which can enhance genetic diversity and overall yellow rust resistance.
Article
Multidisciplinary Sciences
Firdissa E. Bokore, Ron E. Knox, Richard D. Cuthbert, Curtis J. Pozniak, Brent D. McCallum, Amidou N'Diaye, Ron M. DePauw, Heather L. Campbell, Catherine Munro, Arti Singh, Colin W. Hiebert, Curt A. McCartney, Andrew G. Sharpe, Asheesh K. Singh, Dean Spaner, D. B. Fowler, Yuefeng Ruan, Samia Berraies, Brad Meyer
Article
Agronomy
Dinushika Thambugala, Anita L. Brule-Babel, Barbara A. Blackwell, George Fedak, Adam J. Foster, Dan MacEachern, Jeannie Gilbert, Maria Antonia Henriquez, Richard A. Martin, Brent D. McCallum, Dean Spaner, Muhammad Iqbal, Curtis J. Pozniak, Amidou N'Diaye, Curt A. McCartney
THEORETICAL AND APPLIED GENETICS
(2020)
Article
Plant Sciences
Amidou N'Diaye, Brook Byrns, Aron T. Cory, Kirby T. Nilsen, Sean Walkowiak, Andrew Sharpe, Stephen J. Robinson, Curtis J. Pozniak
Article
Biochemical Research Methods
Zhen Yao, Frank M. You, Amidou N'Diaye, Ron E. Knox, Curt McCartney, Colin W. Hiebert, Curtis Pozniak, Wayne Xu
BMC BIOINFORMATICS
(2020)
Article
Genetics & Heredity
Mariaelisa Graff, Anne E. Justice, Kristin L. Young, Eirini Marouli, Xinruo Zhang, Rebecca S. Fine, Elise Lim, Victoria Buchanan, Kristin Rand, Mary F. Feitosa, Mary K. Wojczynski, Lisa R. Yanek, Yaming Shao, Rebecca Rohde, Adebowale A. Adeyemo, Melinda C. Aldrich, Matthew A. Allison, Christine B. Ambrosone, Stefan Ambs, Christopher Amos, Donna K. Arnett, Larry Atwood, Elisa Bandera, Traci Bartz, Diane M. Becker, Sonja Berndt, Leslie Bernstein, Lawrence F. Bielak, William J. Blot, Erwin P. Bottinger, Donald W. Bowden, Jonathan P. Bradfield, Jennifer A. Brody, Ulrich Broeckel, Gregory Burke, Brian E. Cade, Qiuyin Cai, Neil Caporaso, Chris Carlson, John Carpten, Graham Casey, Stephen J. Chanock, Guanjie Chen, Minhui Chen, Yii-Der Chen, Wei-Min Chen, Alessandra Chesi, Charleston W. K. Chiang, Lisa Chu, Gerry A. Coetzee, David Conti, Richard S. Cooper, Mary Cushman, Ellen Demerath, Sandra L. Deming, Latchezar Dimitrov, Jingzhong Ding, W. Ryan Diver, Qing Duan, Michele K. Evans, Adeyinka G. Falusi, Jessica D. Faul, Myriam Fornage, Caroline Fox, Barry Freedman, Melissa Garcia, Elizabeth M. Gillanders, Phyllis Goodman, Omri Gottesman, Struan F. A. Grant, Xiuqing Guo, Hakon Hakonarson, Talin Haritunians, Tamara B. Harris, Curtis C. Harris, Brian E. Henderson, Anselm Hennis, Dena G. Hernandez, Joel N. Hirschhorn, Lorna Haughton McNeill, Timothy D. Howard, Barbara Howard, Ann W. Hsing, Yu-Han H. Hsu, Jennifer J. Hu, Chad D. Huff, Dezheng Huo, Sue A. Ingles, Marguerite R. Irvin, Esther M. John, Karen C. Johnson, Joanne M. Jordan, Edmond K. Kabagambe, Sun J. Kang, Sharon L. Kardia, Brendan J. Keating, Rick A. Kittles, Eric A. Klein, Suzanne Kolb, Laurence N. Kolonel, Charles Kooperberg, Lewis Kuller, Abdullah Kutlar, Leslie Lange, Carl D. Langefeld, Loic Le Marchand, Hampton Leonard, Guillaume Lettre, Albert M. Levin, Yun Li, Jin Li, Yongmei Liu, Youfang Liu, Simin Liu, Kurt Lohman, Vaneet Lotay, Yingchang Lu, William Maixner, JoAnn E. Manson, Barbara McKnight, Yan Meng, Keri L. Monda, Kris Monroe, Jason H. Moore, Thomas H. Mosley, Poorva Mudgal, Adam B. Murphy, Rajiv Nadukuru, Mike A. Nalls, Katherine L. Nathanson, Uma Nayak, Amidou N'Diaye, Barbara Nemesure, Christine Neslund-Dudas, Marian L. Neuhouser, Sarah Nyante, Heather Ochs-Balcom, Temidayo O. Ogundiran, Adesola Ogunniyi, Oladosu Ojengbede, Hayrettin Okut, Olufunmilayo Olopade, Andrew Olshan, Badri Padhukasahasram, Julie Palmer, Cameron D. Palmer, Nicholette D. Palmer, George Papanicolaou, Sanjay R. Patel, Curtis A. Pettaway, Patricia A. Peyser, Michael F. Press, D. C. Rao, Laura J. Rasmussen-Torvik, Susan Redline, Alex P. Reiner, Suhn K. Rhie, Jorge L. Rodriguez-Gil, Charles N. Rotimi, Jerome Rotter, Edward A. Ruiz-Narvaez, Benjamin A. Rybicki, Babatunde Salako, Michele M. Sale, Maureen Sanderson, Eric Schadt, Pamela J. Schreiner, Claudia Schurmann, Ann G. Schwartz, Daniel A. Shriner, Lisa B. Signorello, Andrew B. Singleton, David S. Siscovick, Jennifer A. Smith, Shad Smith, Elizabeth Speliotes, Margaret Spitz, Janet L. Stanford, Victoria L. Stevens, Alex Stram, Sara S. Strom, Lara Sucheston, Yan Sun, Salman M. Tajuddin, Herman Taylor, Kira Taylor, Bamidele O. Tayo, Michael J. Thun, Margaret A. Tucker, Dhananjay Vaidya, David J. Van den Berg, Sailaja Vedantam, Mara Vitolins, Zhaoming Wang, Erin B. Ware, Sylvia Wassertheil-Smoller, David R. Weir, John K. Wiencke, Scott M. Williams, L. Keoki Williams, James G. Wilson, John S. Witte, Margaret Wrensch, Xifeng Wu, Jie Yao, Neil Zakai, Krista Zanetti, Babette S. Zemel, Wei Zhao, Jing Hua Zhao, Wei Zheng, Degui Zhi, Jie Zhou, Xiaofeng Zhu, Regina G. Ziegler, Joe Zmuda, Alan B. Zonderman, Bruce M. Psaty, Ingrid B. Borecki, L. Adrienne Cupples, Ching-Ti Liu, Christopher A. Haiman, Ruth Loos, Maggie C. Y. Ng, Kari E. North
Summary: The study identified new height-related loci in African ancestry individuals and revealed additional signals by combining African and European GWAS data, improving the fine-mapping of potential causal variants shared between populations of African and European ancestry.
AMERICAN JOURNAL OF HUMAN GENETICS
(2021)
Article
Plant Sciences
Kassa Semagn, Muhammad Iqbal, Hua Chen, Enid Perez-Lara, Darcy H. Bemister, Rongrong Xiang, Jun Zou, Muhammad Asif, Atif Kamran, Amidou N'Diaye, Harpinder Randhawa, Curtis Pozniak, Dean Spaner
Summary: In this study, QTL associated with heading, flowering, and maturity time in four hard red spring wheat populations were mapped and characterized using the IWGSC RefSeq v2.0 physical map. A total of 44 QTL were identified, with 15 QTL common to both conventional and organic management systems, while the rest were specific to either system. Some QTL contain known genes that regulate important agronomic traits in wheat, providing a basis for further cloning and characterization.
Article
Plant Sciences
Firdissa E. Bokore, Richard D. Cuthbert, Colin W. Hiebert, Tom G. Fetch, Curtis J. Pozniak, Amidou N'Diaye, Yuefeng Ruan, Brad Meyer, Ron E. Knox
Summary: This study identified stable major and minor QTL associated with field stem rust resistance in 'AAC Prevail' and 'BW961MODIFIER LETTER PRIME', providing breeders with new information and markers to utilize these sources of stem rust resistance.
CANADIAN JOURNAL OF PLANT PATHOLOGY
(2021)
Article
Agronomy
Kassa Semagn, Muhammad Iqbal, Hua Chen, Enid Perez-Lara, Darcy H. Bemister, Rongrong Xiang, Jun Zou, Muhammad Asif, Atif Kamran, Amidou N'Diaye, Harpinder Randhawa, Brian L. Beres, Curtis Pozniak, Dean Spaner
Summary: This study identified 152 QTL and 22 QTL hotspots associated with nine agronomic and end-use quality traits in spring wheat populations. Two QTL with major effects were consistently detected in all environments, providing a strong foundation for further characterization and possibly cloning. The physical positions of these QTL offer valuable information for marker development and comparison across independent studies.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Agronomy
Kassa Semagn, Muhammad Iqbal, Jose Crossa, Diego Jarquin, Reka Howard, Hua Chen, Darcy H. Bemister, Brian L. Beres, Harpinder Randhawa, Amidou N'Diaye, Curtis Pozniak, Dean Spaner
Summary: This study utilized phenotype data from three spring wheat populations to assess prediction accuracies under organic and conventional management systems for seven traits. Results showed that phenotype data collected under organic management effectively predicted performance under conventional management, and vice versa, with high prediction accuracies observed.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Multidisciplinary Sciences
Kassa Semagn, Muhammad Iqbal, Nikolaos Alachiotis, Amidou N'Diaye, Curtis Pozniak, Dean Spaner
Summary: A study using a large number of markers assessed the genetic diversity of historical and modern Canadian spring wheat varieties, revealing a high proportion of allelic redundancy and a lack of clear structure or differentiation. Different wheat classes and predicted groups exhibit diverse levels of genetic divergence, with cultivars registered from 1970 to 1980 having the highest diversity indices and those registered from 2011 to 2018 having the lowest.
SCIENTIFIC REPORTS
(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
Agronomy
Kassa Semagn, Muhammad Iqbal, Amidou N'Diaye, Curtis J. Pozniak, Izabela Ciechanowska, Steliana-Paula Barbu, Dean Spaner
Summary: This study used a panel of 192 spring wheat cultivars widely used in western Canada to explore allelic variation and effects of known genes, and identified genomic regions associated with agronomic traits using the IWGSC RefSeq v2.0 map.
Article
Agronomy
Firdissa E. Bokore, Richard D. Cuthbert, Ron E. Knox, Heather L. Campbell, Brad Meyer, Amidou N'Diaye, Curtis J. Pozniak, Ron DePauw
Summary: This study identified QTL associated with shattering resistance in wheat and analyzed the epistatic interactions between QTL. The results showed that QTL on chromosome arms 4BS and 5AL were associated with reduced shattering. These findings are important for understanding the inheritance of shattering resistance and developing wheat cultivars with shattering resistance.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Genetics & Heredity
Kassa Semagn, Muhammad Iqbal, Diego Jarquin, Jose Crossa, Reka Howard, Izabela Ciechanowska, Maria Antonia Henriquez, Harpinder Randhawa, Reem Aboukhaddour, Brent D. McCallum, Anita L. Brule-Babel, Alireza Navabi, Amidou N'Diaye, Curtis Pozniak, Dean Spaner
Summary: This study investigated the application of genomic selection in major diseases of spring wheat and compared the impact of different models on prediction accuracies. The results showed that the M3 model, which incorporated GE interactions, outperformed the M2 model in reducing residual variance and improving prediction accuracies.
Article
Agronomy
Teketel A. Haile, Sean Walkowiak, Amidou N'Diaye, John M. Clarke, Pierre J. Hucl, Richard D. Cuthbert, Ron E. Knox, Curtis J. Pozniak
Summary: Genomic predictions within populations show moderate to high accuracies, while across-population genomic predictions in wheat with small population size should be approached with caution. BayesB model performs well in the presence of few QTL, and cross-validation design has a significant impact on prediction accuracy.
THEORETICAL AND APPLIED GENETICS
(2021)
