Article
Plant Sciences
Jana Palicova, Pavel Matusinsky, Veronika Dumalasova, Alena Hanzalova, Ivana Svacinova, Jana Chrpova
Summary: The reaction of 25 winter wheat cultivars to Oculimacula yallundae and Oculimacula acuformis was evaluated over a period of three years (2019-2021). Cultivars with the resistance gene Pch1 showed the lowest levels of eyespot infection, while Turandot and RGT Sacramento were the most susceptible. The qPCR method was able to distinguish between the two eyespot pathogens, with O. yallundae being detected at higher concentrations. The highest infection rate occurred in 2020 due to favorable weather conditions.
Article
Plant Sciences
S. Gargouri, A. Bouatrous, T. D. Murray, T. C. Paulitz, E. Khemir, A. Souissi, S. Chekali, L. W. Burgess
Summary: This study investigated the occurrence of eyespot in commercial spring cereal crops and identified the dominant species of Oculimacula responsible for the disease. The research found that the incidence and severity of eyespot disease increased significantly over the study period, with wetter areas having higher disease incidence. The predominance of O. yallundae and the presence of both mating types suggest the possibility of sexual reproduction occurring.
CANADIAN JOURNAL OF PLANT PATHOLOGY
(2022)
Article
Plant Sciences
Bin Yang, Nan Chen, Yifei Dang, Yuzhi Wang, Hongwei Wen, Jun Zheng, Xingwei Zheng, Jiajia Zhao, Jinxiu Lu, Ling Qiao
Summary: This study investigated the changes in chlorophyll content in wheat flag leaves under different phosphorus conditions and identified 157 QTLs associated with this trait. Six major QTLs were detected under multiple phosphorus conditions, and two novel major QTLs were discovered. Additionally, SNP markers closely linked to these QTLs were validated.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Ling Qiao, Justin Wheeler, Rui Wang, Kyle Isham, Natalie Klassen, Weidong Zhao, Meng Su, Junli Zhang, Jun Zheng, Jianli Chen
Summary: This study conducted multiple field trials in Southeast Idaho, United States, to identify three major QTL regions associated with Cd content in wheat grain and proposed TaHMA2 gene as a candidate gene for grain Cd content in wheat.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Genetics & Heredity
John W. Bagwell, Madhav Subedi, Suraj Sapkota, Benjamin Lopez, Bikash Ghimire, Zhenbang Chen, G. David Buntin, Bochra A. Bahri, Mohamed Mergoum
Summary: The Hessian fly (HF) is an invasive insect that has caused significant yield losses in southeastern US wheat farms. Genetic resistance is the most effective solution, but the emergence of new biotypes threatens existing resistance genes. In this study, a population of recombinant inbred lines derived from a cross between a resistant line and a susceptible variety was phenotyped in growth chamber and field trials. A major QTL on chromosome 3D, associated with resistance gene H32, was identified, and SNP marker IWB65911 was found to be linked to this QTL. This marker may be valuable for marker-assisted selection.
Article
Agronomy
Chuang Gao, Gaili Song, Kefei Qu, Mengyu Li, Yumei Jiang, Guihong Yin, Jishan Niu, Jianwei Tang, Yan Gao, Qiaoyun Li
Summary: This study aimed to identify major quantitative trait loci (QTL) for resistance to black point disease in wheat and develop molecular markers for marker-assisted selection (MAS). A recombinant inbred line (RIL) population was evaluated for resistance to Bipolaris sorokiniana, and resistant and susceptible bulks were genotyped using a wheat 660 K SNP array. Several QTL for black point resistance were identified on three chromosomes, with potential markers for MAS-based breeding. These findings contribute to our understanding and potential improvement of black point disease management in wheat production.
MOLECULAR BREEDING
(2023)
Article
Developmental Biology
Yuji Matsuoka And, Antoonia Monteiro
Summary: Nymphalid butterfly species exhibit asymmetry in the number of eyespots on their forewings and hindwings. A study on Bicyclus anynana butterflies revealed similar genetic interactions between three eyespot-essential genes in both fore- and hindwings, but also identified three regulatory differences. The study proposed a model explaining how the regulatory connections between these genes evolved to generate wing- and sector-specific variation in eyespot number.
Article
Plant Sciences
Jiang Liu, David C. Cobertera, Robert S. Zemetra, Christopher C. Mundt
Summary: Wheat sharp eyespot (SES), caused by Rhizoctonia cerealis Van der Hoeven, is a common stem disease of wheat worldwide. In 2014, it caused a severe epidemic in the Willamette Valley of Oregon and has remained a significant wheat disease in the region. A study using a recombinant inbred line (RIL) population found four quantitative trait loci (QTL) associated with SES resistance, which may help in marker-assisted breeding. Genotyping by sequencing revealed low heritability across different environments.
Article
Plant Sciences
Xujiang Wu, Junchan Wang, Di Wu, Wei Jiang, Zhifu Gao, Dongsheng Li, Rongling Wu, Derong Gao, Yong Zhang
Summary: A genome-wide association study of sharp eyespot resistance in 262 wheat varieties from all China wheat regions identified two QTLs and 5 significantly related SNP loci. Results showed that only 6.5% of the varieties were resistant to sharp eyespot, with varieties from the middle and lower Yangtze River exhibiting higher resistance than those from Huanghuai wheat zone.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemical Research Methods
Chen Lyu, Manyan Huang, Nianjun Liu, Zhongxue Chen, Philip J. Lupo, Benjamin Tycko, John S. Witte, Charlotte A. Hobbs, Ming Li
Summary: The proposed Methylation Random Field (MRF) method offers advantages in detecting Methylation Quantitative Trait Loci (mQTLs) by utilizing a beta distribution and considering multiple common and rare genetic variants. Through simulations and application to a study on congenital heart defects, the MRF demonstrated improved power in detecting rare variants, especially with small sample sizes. This tool is useful for identifying novel mQTLs, particularly in studies with limited sample sizes.
BRIEFINGS IN BIOINFORMATICS
(2021)
Article
Plant Sciences
Tilahun Mekonnen, Clay H. Sneller, Teklehaimanot Haileselassie, Cathrine Ziyomo, Bekele G. Abeyo, Stephen B. Goodwin, Dagnachew Lule, Kassahun Tesfaye
Summary: This study aimed to elucidate the genomic architecture of septoria tritici blotch (STB) resistance in an association panel of 178 bread wheat genotypes. Through phenotyping and genotyping, 53 loci associated with STB resistance were identified, with 33 putative quantitative trait loci (QTLs) confirmed. Population structure and principal component analyses revealed two sub-groups with high degrees of admixture.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Genetics & Heredity
Bin Yang, Xiaojie Wen, Hongwei Wen, Yanru Feng, Jiajia Zhao, Bangbang Wu, Xingwei Zheng, Chenkang Yang, Sanwei Yang, Ling Qiao, Jun Zheng
Summary: In this study, a recombinant inbred line (RIL) population was constructed from a cross of drought-sensitive and drought-resistant wheat varieties to analyze 29 QTLs controlling flag leaf chlorophyll content. The major QTLs detected under different water regimes provide valuable information for understanding the genetic mechanism underlying chlorophyll content and molecular marker-assisted breeding.
FRONTIERS IN GENETICS
(2022)
Article
Plant Sciences
Lu Lu, Hui Liu, Yu Wu, Guijun Yan
Summary: This study identified and validated QTL related to heat tolerance in common wheat, which provides valuable genetic information for wheat breeding. The study found that 6 major QTL associated with different traits under heat stress and validated a hotspot QTL located on chromosome 4D.
Article
Agronomy
Qiaoyun Li, Runyu Hu, Zhenfeng Guo, Siyu Wang, Chuang Gao, Yumei Jiang, Jianwei Tang, Guihong Yin
Summary: This study aimed to identify major quantitative trait loci (QTL) for resistance to black point disease in wheat and develop molecular markers for marker-assisted selection (MAS). Through artificial inoculation and genotyping, two new QTL for black point resistance were discovered on chromosomes 4A and 5A. These findings provide potential markers for MAS-based breeding and contribute to the understanding of the genetic basis of resistance to black point disease in wheat.
Article
Agronomy
Qiaoyun Li, Runyu Hu, Zhenfeng Guo, Siyu Wang, Chuang Gao, Yumei Jiang, Jianwei Tang, Guihong Yin
Summary: By genetic mapping of wheat varieties, two major QTL for resistance to black point disease were identified, and molecular markers were developed for potential application in breeding programs.
Article
Plant Sciences
Lei Cui, Dan Qiu, Lei Sun, Yu Sun, Yongkang Ren, Hongjun Zhang, Jingting Li, Jingwei Zou, Peipei Wu, Jinghuang Hu, Jingzhong Xie, Hongwei Liu, Li Yang, Yang Zhou, Yan Wang, Yan Lv, Zhiyong Liu, T. D. Murray, Hongjie Li
Article
Plant Sciences
Dennis Lozada, Jayfred V. Godoy, Timothy D. Murray, Brian P. Ward, Arron H. Carter
FRONTIERS IN PLANT SCIENCE
(2019)
Article
Chemistry, Applied
Douglas G. Luster, Michael B. McMahon, Melissa L. Carter, Aaron J. Sechler, Elizabeth E. Rogers, Brenda K. Schroeder, Timothy D. Murray
FOOD AND AGRICULTURAL IMMUNOLOGY
(2020)
News Item
Plant Sciences
T. D. Murray, B. Barrantes-Infante, B. K. Schroeder
Article
Microbiology
Matthew A. Tancos, Aaron J. Sechler, Edward W. Davis, Jeff H. Chang, Brenda K. Schroeder, Timothy D. Murray, Elizabeth E. Rogers
FRONTIERS IN MICROBIOLOGY
(2020)
Article
Agronomy
S. Gargouri, E. Khemir, A. Souissi, T. C. Paulitz, T. D. Murray, M. Fakhfakh, I Achour, S. Chekali, Y. Mliki, L. W. Burgess
Article
Agronomy
A. H. Carter, K. A. Balow, G. B. Shelton, A. B. Burke, K. E. Hagemeyer, J. Worapong, R. W. Higginbotham, X. M. Chen, D. A. Engle, T. D. Murray, C. F. Morris
JOURNAL OF PLANT REGISTRATIONS
(2020)
Article
Plant Sciences
Erika B. Kruse, Samuel Revolinski, Jesse Aplin, Daniel Z. Skinner, Timothy D. Murray, Charles G. Edwards, Arron H. Carter
Article
Plant Sciences
S. Gargouri, A. Bouatrous, T. D. Murray, T. C. Paulitz, E. Khemir, A. Souissi, S. Chekali, L. W. Burgess
Summary: This study investigated the occurrence of eyespot in commercial spring cereal crops and identified the dominant species of Oculimacula responsible for the disease. The research found that the incidence and severity of eyespot disease increased significantly over the study period, with wetter areas having higher disease incidence. The predominance of O. yallundae and the presence of both mating types suggest the possibility of sexual reproduction occurring.
CANADIAN JOURNAL OF PLANT PATHOLOGY
(2022)
Article
Agronomy
Savannah N. Phipps, Adrienne B. Burke, Kerry Balow, Jared Smith, Timothy Murray, Arron H. Carter
Summary: This study investigated snow mold tolerance in winter wheat by analyzing a doubled haploid population derived from a cross between the Japanese variety PI 173438 and the susceptible variety WA 8137. Six quantitative trait loci (QTL) associated with snow mold tolerance were identified, with one QTL on chromosome 1D being previously unreported. Marker-assisted selection (MAS) testing showed no significant difference among the tested QTL and linked markers in separate populations. These findings highlight the complexity of breeding for snow mold tolerance using molecular markers.
Article
Agronomy
Kimberly Garland-Campbell, Brian S. Bellinger, Arron H. Carter, Xianming Chen, Patricia DeMacon, Doug Engle, Christina H. Hagerty, Alecia Kiszonas, Emily Klarquist, Timothy Murray, Craig Morris, Clark Neely, Steven Odubiyi, Arash Rashad, Deven See, Camille Steber, Nuan Wen
Summary: Soft white club wheat is an important crop in the Pacific Northwest, mainly grown in central Washington but there is also interest in the Palouse region of Washington and Idaho. The 'Cameo' club wheat cultivar has been developed specifically for the Palouse region, with superior agronomic performance, resistance to stripe rust and other stresses, consistent grain quality and tolerance to low falling numbers. It is well suited for increasing the acreage of club wheat in the Palouse region.
JOURNAL OF PLANT REGISTRATIONS
(2022)
Article
Agronomy
Savannah N. Phipps, Kerry Balow, Adrienne B. Burke, Anna Stowe, Jared H. Smith, Timothy Murray, Arron H. Carter
Summary: A mapping population was developed from a cross between two different types of wheat, and quantitative trait loci associated with snow mold tolerance were successfully identified in this population. Other traits related to snow mold tolerance were also discovered, and this population may be useful in identifying other novel traits of interest.
JOURNAL OF PLANT REGISTRATIONS
(2023)
Article
Plant Sciences
Hongyan Sheng, Kathy L. E. Klos, Timothy D. Murray
Summary: This study aimed to correlate disease intensity in the field with percentage of infected seed and amount of pathogen DNA using a high-throughput PCR method. The results showed that the fluorescent-labeled PCR was more sensitive than the culture-based method or conventional PCR, and disease index was positively correlated with seed infection rate.
Meeting Abstract
Plant Sciences
M. Tancos, A. Sechler, E. Davis, J. Chang, B. Schroeder, T. D. Murray, E. E. Rogers
Meeting Abstract
Plant Sciences
B. Schroeder, A. Sechler, M. Tancos, E. E. Rogers, D. Luster, W. Schneider, T. D. Murray
