Article
Agronomy
Maria Buerstmayr, Hermann Buerstmayr
Summary: The aim of this study was to dissect the genetic architecture of WDV resistance in resistant germplasm and to identify quantitative trait loci (QTL) to support resistance breeding. QTL analysis revealed two highly significant QTL, Qwdv.ifa-6A and Qwdv.ifa-1B, which explained up to 73.9% and 15.8% of the phenotypic variance, respectively. These QTLs are important resources for improving WDV resistance in wheat.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Plant Sciences
Mahnaz Rashidi, Regina K. Cruzado, Pamela J. S. Hutchinson, Nilsa A. Bosque-Perez, Juliet M. Marshall, Arash Rashed
Summary: The study found that BYDV-PAV and the bird cherryoat aphid were common in the winter wheat production areas in Idaho. It was determined that various grassy weeds and types of corn could be inoculated with BYDV-PAV by the aphid, serving as sources of infection for winter wheat.
Article
Entomology
Zuqing Hu, Ruirui Chai, Xin Liu, Yao Dong, Dan Su, Nicolas Desneux, Xiaoling Tan, Chen Luo
Summary: The selection preferences of different morphs of aphid vectors for infected or noninfected wheat plants were studied, revealing that infective aphids prefer noninfected plants while noninfective aphids tend to select infected plants, possibly due to the influence of volatile components. Furthermore, virus-infected plants release increased volatiles which may attract noninfective aphids in a concentration-dependent manner, providing new evidence for the vector manipulation hypothesis.
JOURNAL OF PEST SCIENCE
(2022)
Article
Plant Sciences
Anne-Kathrin Pfrieme, Britta Ruckwied, Antje Habekuss, Torsten Will, Andreas Stahl, Klaus Pillen, Frank Ordon
Summary: This study aimed at screening WDV resistance and identifying QTL associated with resistance through GWAS. By phenotyping and genotyping a large number of wheat resources, potential WDV-resistant cultivars and relevant genetic loci were identified.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Thomas Armand, Marlene Souquet, Luana Korn, Kevin Gauthier, Emmanuel Jacquot
Summary: The study of plant virus epidemiology has traditionally focused on the interactions between partners of a single pathosystem. However, plants are frequently co-infected with multiple viruses, which can alter virus-vector-host interactions and impact disease epidemiology.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Chuan Shen, Caiyan Wei, Yunfeng Wu
Summary: In this study, it was found that barley yellow dwarf virus-GAV (BYDV-GAV) infection induces the upregulation of autophagy-related genes in wheat and the production of autophagosomes. The direct interaction between viral movement protein (MP) and wheat autophagy-related gene 6 (TaATG6) was confirmed. Through yeast function complementation experiments, TaATG6 was shown to restore the autophagy function. The interaction between TaATG6 and TaATG8, core factors of the autophagic pathway, was also identified. Silencing of TaATG6 and TaATG8 in wheat plants resulted in higher viral content. Overall, this study suggests that wheat activates the MP-TaATG6-TaATG8 regulatory network through the induction of the autophagy pathway in response to BYDV-GAV infection.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Microbiology
Narelle Nancarrow, Mohammad Aftab, Grant Hollaway, Brendan Rodoni, Piotr Trebicki
Summary: Barley yellow dwarf virus (BYDV) transmitted by aphids significantly reduces grain yield of wheat and barley. Virus infection severely affects grain number, but the timing of infection did not show significant differences in yield loss. An estimated impact factor of 0.91% yield loss for each 1% increase in natural BYDV-PAV infection was determined.
Article
Virology
Glenda Alquicer, Emad Ibrahim, Midatharahally N. Maruthi, Jiban Kumar Kundu
Summary: Barley yellow dwarf viruses (BYDVs) are widely spread and economically important pathogens that affect cereal crops. Resistance breeding is the most effective approach to mitigate the impact of BYDVs. Through RNA sequencing analysis, potential genes involved in BYDV infection in resistant barley genotypes have been identified. Nine putative genes related to resistance to BYDV-PAV were selected for investigation, including NBS-LRR, CC-NBS-LRR, RLK, casein kinase, protein kinase, protein phosphatase subunits, MYB TF, GRAS TF, and MADS-box TF.
Article
Microbiology
Yan Zhao, Wei Wei, Robert E. Davis, Ing-Ming Lee, Kristi D. Bottner-Parker
Summary: WBD phytoplasma, as a novel taxon, has unique transmission vector (Psammotettix striatus) and distinctive symptoms in its predominant host (wheat). Ecological, molecular, and genomic evidence justifies the significant divergence of WBD phytoplasma from Ca. P. asteris.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Genetics & Heredity
Paula Silva, Byron Evers, Alexandria Kieffaber, Xu Wang, Richard Brown, Liangliang Gao, Allan Fritz, Jared Crain, Jesse Poland
Summary: This study evaluated the use of high-throughput phenotyping to improve the assessment of barley yellow dwarf, identified genomic regions associated with resistance, and assessed the ability of genomic selection models to predict resistance. The results showed that insecticide treatment reduced the severity of barley yellow dwarf, and identified a translocated segment carrying the resistance gene Bdv2 through association mapping. A potentially novel genomic region for resistance was also mapped. The study demonstrated the potential of high-throughput phenotyping and genomic selection models for improving the assessment of barley yellow dwarf and identifying new sources of resistance.
G3-GENES GENOMES GENETICS
(2022)
Article
Agronomy
Elham Yazdkhasti, Richard J. Hopkins, Anders Kvarnheden
Summary: Non-crop plants like grasses can act as reservoirs for viruses affecting cereal crops, potentially influencing virus transmission and incidence in agricultural fields. Experimental evidence shows that grasses can serve as a source of infection for cereal-infecting viruses, highlighting the importance of understanding virus reservoirs in plant virus control strategies.
Article
Agronomy
Ali Ferhan Morca, Sevgi Coskan, Birol Akbas
Summary: This study presents a comprehensive molecular characterization of WDV isolates causing serious problems in the Central Anatolia Region of Turkey. It identified wheat-specific and barley-specific forms of WDV, with new isolates of the WDV-W specific form being reported for the first time. Phylogenetic analysis showed diversity among the isolates, clustering into WDV-A, WDV-B, and WDV-E, with the first report of B and E strains of WDV in Turkey.
CEREAL RESEARCH COMMUNICATIONS
(2022)
Article
Biology
Nami Minato, Shuichi Hatori, Azusa Okawa, Kai Nakagawa, Mantaro Hironaka
Summary: Previous studies have shown that vector-borne viruses can manipulate the host selection behavior of insect vectors. This study reveals that the host selection behavior of the insect vector of barley yellow dwarf virus-PAV (BYDV-PAV) and cereal yellow dwarf virus-RPS (CYDV-RPS) is dependent on the host plant species and viral co-infection.
Review
Biotechnology & Applied Microbiology
Peter M. Dracatos, Jing Lu, Javier Sanchez-Martin, Brande B. H. Wulff
Summary: Staying ahead of the arms race against rust and mildew diseases in cereal crops is crucial for maintaining food security. Advances in genomics have allowed rapid gene isolation and manipulation in high-yielding crop varieties, providing opportunities for durable resistance through multi-gene stacking. This review discusses how these genomics-enabled developments can lead to new breeding and biotechnological strategies for rust and powdery mildew control in cereals.
PLANT BIOTECHNOLOGY JOURNAL
(2023)
Article
Virology
Behnaz Soleimani, Heike Lehnert, Sarah Trebing, Antje Habekuss, Frank Ordon, Andreas Stahl, Torsten Will
Summary: Wheat dwarf virus (WDV) causes significant yield losses in barley production. In this study, 480 barley genotypes were screened to identify resistance/tolerance to WDV, and 32 genotypes showed resistance or tolerance. Genome-wide association study identified genomic regions associated with WDV resistance/tolerance on chromosomes 3H, 4H, 5H, and 7H for multiple traits.