Article
Agronomy
Admas Alemu, Lorena Batista, Pawan K. Singh, Alf Ceplitis, Aakash Chawade
Summary: LD-based haplotyping with subsequent SNP tagging improved the genomic prediction accuracy for Fusarium head blight resistance and spike width. The study showed that pre-selecting SNPs can enhance the prediction accuracy and reduce genotyping costs in genomic selection.
THEORETICAL AND APPLIED GENETICS
(2023)
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
Genetics & Heredity
Admas Alemu, Gintaras Brazauskas, David S. Gaikpa, Tina Henriksson, Bulat Islamov, Lise Nistrup Jorgensen, Mati Koppel, Reine Koppel, Zilvinas Liatukas, Jan T. Svensson, Aakash Chawade
Summary: The study evaluated 175 winter wheat landraces and historical cultivars from the Nordic region for adult-plant resistance to Septoria tritici blotch (STB) and powdery mildew (PM), highlighting their potential as valuable sources of resistance genes for modern breeding lines.
FRONTIERS IN GENETICS
(2021)
Article
Plant Sciences
Dylan L. Larkin, Richard Esten Mason, David E. Moon, Amanda L. Holder, Brian P. Ward, Gina Brown-Guedira
Summary: The study compared the performance of naive GS (NGS) models and multi-trait GS (MTGS) models for FHB resistance traits, finding that MTGS model outperformed NGS model in all three traits during the 2019 breeding cycle, while NGS model outperformed MTGS model in all three traits during the 2018 breeding cycle.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Sara Louriki, Sajid Rehman, Samira El Hanafi, Yassine Bouhouch, Muamar Al-Jaboobi, Ahmed Amri, Allal Douira, Wuletaw Tadesse
Summary: This study aimed to identify sources of resistance to Septoria tritici blotch in wheat, using a panel of breeding lines from ICARDA, and to identify loci associated with resistance using genome-wide association mapping. The study found several resistant genotypes and identified quantitative trait loci (QTL) for resistance at both seedling and adult plant stages. The QTL for adult plant stage resistance explained a significant proportion of phenotypic variance, which will be valuable for STB resistance breeding.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Sobia Ajaz, Harriet R. Benbow, Thalia Christodoulou, Cristobal Uauy, Fiona M. Doohan
Summary: This research identified wild wheat relatives and Watkins collection lines with exceptional resistance to a range of Zymoseptoria tritici isolates, and developed backcross derivatives of wheat cultivar Cadenza TILLING population lines that show dominant partial resistance to Septoria tritici blotch. These backcross lines, along with the wild and ancestral lines identified, provide a useful reservoir of STB-resistant germplasm for wheat breeding programs.
Article
Microbiology
Minely Ceron-Bustamante, Francesco Tini, Giovanni Beccari, Paolo Benincasa, Lorenzo Covarelli
Summary: The wheat pathogen Zymoseptoria tritici responds to light by modulating its gene expression, and different light wavelengths have specific effects on its growth and host colonization. Blue light reduces colony growth, while dark and red light promote fungal development. White light stimulates host colonization, while red light represses it. This study demonstrates the importance of light in the interaction between Z. tritici and wheat.
Article
Plant Sciences
J. Garcia-Abadillo, L. Morales, H. Buerstmayr, S. Michel, M. Lillemo, J. Holzapfel, L. Hartl, D. Akdemir, H. F. Carvalho, J. Isidro-Sanchez
Summary: Fusarium head blight (FHB) is a fungal disease of wheat that causes yield losses and produces mycotoxins. Efficient alternatives to the commonly used Area Under the Disease Progress Curve (AUDPC) metric for evaluating FHB have been identified, with the method capturing the maximum variance in FHB severity across plots being the most optimal approach.
FRONTIERS IN PLANT SCIENCE
(2023)
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
Biochemistry & Molecular Biology
Yasir Sidiq, Masataka Nakano, Yumi Mori, Takashi Yaeno, Makoto Kimura, Takumi Nishiuchi
Summary: Nicotinamide pretreatment effectively suppresses Fusarium Head Blight in wheat plants and significantly reduces DON mycotoxin accumulation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Taheni Gargouri Jbir, Frankie K. Crutcher, John Rickertsen, Dimitri Fonseka, Andrew J. Friskop, Audrey K. Kalil
Summary: In the semiarid regions of North Dakota and Montana, modifying planting date can reduce disease risk and maximize yield of durum wheat. Early planting increases yield and influences ergot incidence. Reduced susceptibility to leaf spot and Fusarium head blight is associated with decreased disease severity and deoxynivalenol levels.
Article
Agronomy
Kassa Semagn, Jose Crossa, Jaime Cuevas, Muhammad Iqbal, Izabela Ciechanowska, Maria Antonia Henriquez, Harpinder Randhawa, Brian L. Beres, Reem Aboukhaddour, Brent D. McCallum, Anita L. Brule-Babel, Amidou N'Diaye, Curtis Pozniak, Dean Spaner
Summary: This study comprehensively analyzed the predictive abilities of single-trait and multi-trait models across different populations. The results showed that multi-trait models outperformed single-trait models in predicting various agronomic and disease resistance traits. The study also demonstrated the potential of multi-trait models in improving prediction accuracies and highlighted the need for further investigation in diverse traits and management systems.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Plant Sciences
Henry Tidd, Jason J. J. Rudd, Rumiana V. V. Ray, Ruth Bryant, Kostya Kanyuka
Summary: Septoria tritici blotch (STB), a damaging fungal disease of wheat in Europe, has become resistant to current protection methods. This study assessed the effectiveness of 19 known STB resistance genes in wheat genotypes, and found that Stb10, Stb11, Stb12, Stb16q, Stb17, and Stb19 provided broad spectrum disease resistance. Synthetic hexaploid wheat lines were identified as promising sources of effective STB resistance.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Tony Twamley, Mark Gaffney, Angela Feechan
Summary: Research has shown that a microbial fermentation-based product can effectively control non-biotrophic fungal pathogens on wheat, particularly demonstrating significant inhibition against F. graminearum, and improving grain number and weight in wheat heads.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2022)
Article
Plant Sciences
Christopher Stephens, Fatih Olmez, Hannah Blyth, Megan McDonald, Anuradha Bansal, Emine Burcu Turgay, Florian Hahn, Cyrille Saintenac, Vladimir Nekrasov, Peter Solomon, Andrew Milgate, Bart Fraaije, Jason Rudd, Kostya Kanyuka
Summary: Septoria tritici blotch (STB), caused by the fungus Zymoseptoria tritici, is a major economically important disease of wheat. Recent research has identified gene-for-gene interaction factors between Z. tritici and wheat, namely the wheat receptor-like kinase Stb6 and the Z. tritici secreted effector protein AvrStb6. Studies show a high diversity of AvrStb6 haplotypes in earlier Z. tritici isolates, but a complete absence of the avirulence isoform among modern isolates, indicating a trend towards elimination of avirulence haplotypes in subsequent Z. tritici populations.
MOLECULAR PLANT PATHOLOGY
(2021)
Article
Agronomy
Anna Kodisch, Brigitta Schmiedchen, Jakob Eifler, Andres Gordillo, Dorthe Siekmann, Franz Joachim Fromme, Michael Oberforster, Thomas Miedaner
Summary: Claviceps purpurea causing ergot is a problem in CMS-based hybrid rye growing, and this study identified maternal differences in ergot infection in the absence of pollen. Spray and needle inoculation are suitable for testing unfertilized male-sterile rye materials, and testing across multiple environments is necessary. Selecting specific females has the potential to reduce ergot contamination further.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Yan-Fei Li, Ying-Hui Li, Shan-Shan Su, Jochen C. Reif, Zhao-Ming Qi, Xiao-Bo Wang, Xing Wang, Yu Tian, De-Lin Li, Ru-Jian Sun, Zhang-Xiong Liu, Ze-Jun Xu, Guang-Hui Fu, Ya-Liang Ji, Qing-Shan Chen, Ji-Qiang Liu, Li-Juan Qiu
Summary: The development and validation of the SoySNP618K array, a genomic tool for soybean, is described. This array contains a large number of SNPs and can be used for gene bank management, population stratification analysis, and genome-wide association mapping. The array enables the fine-mapping of key genes influencing flowering and maturity time in soybean and demonstrates its importance in applied breeding and basic crop research.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Editorial Material
Biochemistry & Molecular Biology
Junjie Fu, Yangfan Hao, Huihui Li, Jochen C. Reif, Shaojiang Chen, Changling Huang, Guoying Wang, Xinhai Li, Yunbi Xu, Liang Li
Review
Agronomy
Lea Schwarzwalder, Patrick Thorwarth, Yusheng Zhao, Jochen Christoph Reif, C. Friedrich H. Longin
Summary: Heterosis effects for dough quality and baking volume were close to zero, but hybrids showed higher grain yield at a given level of bread making quality compared to their parental lines. Wheat hybrids can combine high grain yield with high bread making quality, but the future use depends on a cost-efficient and reliable seed production system.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Agronomy
Thomas Miedaner, Melissa Lenhardt, Janosch Grehl, Paul Gruner, Silvia Koch
Summary: This study investigated the effect of the Rht24b gene on Fusarium head blight (FHB) response in wheat and found that Rht24b had no significant impact on FHB severity, while Rht-D1b increased FHB susceptibility by 37%. The most resistant cultivars either had the Rht-D1 gene or Rht24b alone. The study also found that Rht24b reduced average plant height by 6.8 cm, while Rht-D1b conferred a reduction of 13.6 cm. For breeding short, FHB-resistant germplasm, the neutral Rht24 gene must be combined with other FHB-neutral QTL or Rht genes.
Article
Biotechnology & Applied Microbiology
Sandip M. Kale, Albert W. Schulthess, Sudharsan Padmarasu, Philipp H. G. Boeven, Johannes Schacht, Axel Himmelbach, Burkhard Steuernagel, Brande B. H. Wulff, Jochen C. Reif, Nils Stein, Martin Mascher
Summary: This article reports on the sequencing and assembly of resistance gene homologs in a diversity panel of winter wheat genotypes, as well as the construction of a chromosome-scale genome sequence assembly. It illustrates the value of this resource for breeders and geneticists through comparing resistance gene complements and conducting genome-wide association scans.
PLANT BIOTECHNOLOGY JOURNAL
(2022)
Article
Plant Sciences
Valentin Hinterberger, Dimitar Douchkov, Stefanie Lueck, Sandip Kale, Martin Mascher, Nils Stein, Jochen C. Reif, Albert W. Schulthess
Summary: Genetic pathogen control is a cost-effective and sustainable alternative to chemical-based methods. In this study, we phenotyped a collection of winter wheat genotypes and identified genetic resistance mechanisms against powdery mildew, a major wheat pathogen. Through genome-wide association study and domain enrichment analysis, we discovered novel candidate genes for disease resistance in wheat.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Genetics & Heredity
Albert W. Schulthess, Sandip M. Kale, Fang Liu, Yusheng Zhao, Norman Philipp, Maximilian Rembe, Yong Jiang, Ulrike Beukert, Albrecht Serfling, Axel Himmelbach, Jorg Fuchs, Markus Oppermann, Stephan Weise, Philipp H. G. Boeven, Johannes Schacht, C. Friedrich H. Longin, Sonja Kollers, Nina Pfeiffer, Viktor Korzun, Matthias Lange, Uwe Scholz, Nils Stein, Martin Mascher, Jochen C. Reif
Summary: This study implemented a genomics-informed prebreeding strategy for wheat improvement, which does not discriminate against nonadapted germplasm. By collecting and analyzing genetic profiles of a large winter wheat collection, the study identified potential donors of resistance sources not yet deployed in breeding. Through genomic prediction, the best parents were identified to be used in crosses with elite cultivars, leading to advanced progenies with higher yield than current wheat varieties in multiple field trials.
Article
Biochemistry & Molecular Biology
Paul Gruner, Anne Witzke, Kerstin Flath, Jakob Eifler, Brigitta Schmiedchen, Malthe Schmidt, Andres Gordillo, Doerthe Siekmann, Franz Joachim Fromme, Silvia Koch, Hans-Peter Piepho, Thomas Miedaner
Summary: This study screened several breeding populations for resistance to stem rust and leaf rust and identified multiple genetic loci associated with resistance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Albert W. Schulthess, Sandip M. Kale, Yusheng Zhao, Abhishek Gogna, Maximilian Rembe, Norman Philipp, Fang Liu, Ulrike Beukert, Albrecht Serfling, Axel Himmelbach, Markus Oppermann, Stephan Weise, Philipp H. G. Boeven, Johannes Schacht, C. Friedrich H. Longin, Sonja Kollers, Nina Pfeiffer, Viktor Korzun, Anne Fiebig, Danuta Schueler, Matthias Lange, Uwe Scholz, Nils Stein, Martin Mascher, Jochen C. Reif
Summary: This study provides a basis for future breeding and research activities by conducting genomic sequencing and field trials on winter wheat genetic resources.
Article
Plant Sciences
Rhonda C. Meyer, Kathleen Weigelt-Fischer, Henning Tschiersch, Georgia Topali, Lothar Altschmied, Marc C. Heuermann, Dominic Knoch, Markus Kuhlmann, Yusheng Zhao, Thomas Altmann
Summary: Plant growth is influenced by numerous genetic and environmental factors. In this study, the genetic factors affecting plant performance under different light regimes were identified using high-throughput phenotyping and genome-wide association studies. The results showed that the identified quantitative trait loci (QTL) for leaf area, growth rate, and PSII efficiency were specific to different light conditions and displayed distinct temporal activity patterns. Several candidate genes were identified at consistently found QTL regions under both light regimes. These findings highlight the importance of considering environmental and temporal patterns of gene actions in understanding plant growth.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Genetics & Heredity
Osval A. Montesinos-Lopez, Carolina Saint Pierre, Salvador A. Gezan, Alison R. Bentley, Brandon A. Mosqueda-Gonzalez, Abelardo Montesinos-Lopez, Fred van Eeuwijk, Yoseph Beyene, Manje Gowda, Keith Gardner, Guillermo S. Gerard, Leonardo Crespo-Herrera, Jose Crossa
Summary: This research evaluated four methods (M1-M4) for sparse testing allocation of lines to environments in genomic prediction. It found that the multi-trait model had better prediction accuracy than the uni-trait model, and methods M3 and M4 were slightly better for line allocation than methods M1 and M2.
Correction
Plant Sciences
Thomas Miedaner, Viktor Korzun, Peer Wilde
Review
Agronomy
Tobias Wuerschum, Xintian Zhu, Yusheng Zhao, Yong Jiang, Jochen C. Reif, Hans Peter Maurer
Summary: Heterosis refers to the improved performance of hybrid offspring compared with their parental components and is widely used in agriculture. The relationship between heterosis and genetic distance has been a topic of intensive research, but remains unclear. Experimental studies have found a positive association between heterosis and genetic distance, but the strength of this association varies. It is still unknown whether heterosis continues to increase with genetic distance or if there is an optimum genetic distance after which heterosis declines again.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Agronomy
Abhishek Gogna, Jie Zhang, Yong Jiang, Albert W. Schulthess, Yusheng Zhao, Jochen C. Reif
Summary: This study investigates the contribution of deleterious alleles to the grain yield heterosis of wheat. It is found that including these low-frequency alleles in prediction models significantly improves accuracy. The study also highlights the difference in allele frequency between elite cultivars and plant genetic resources, suggesting the role of purifying selection. Additionally, the study explores the heterotic-quantitative trait loci underlying heterosis in different crosses.