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Qureshi N, Singh RP, Gonzalez BM, Velazquez-Miranda H, Bhavani S. Genomic Regions Associated with Resistance to Three Rusts in CIMMYT Wheat Line "Mokue#1". Int J Mol Sci 2023; 24:12160. [PMID: 37569535 PMCID: PMC10418946 DOI: 10.3390/ijms241512160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Understanding the genetic basis of rust resistance in elite CIMMYT wheat germplasm enhances breeding and deployment of durable resistance globally. "Mokue#1", released in 2023 in Pakistan as TARNAB Gandum-1, has exhibited high levels of resistance to stripe rust, leaf rust, and stem rust pathotypes present at multiple environments in Mexico and Kenya at different times. To determine the genetic basis of resistance, a F5 recombinant inbred line (RIL) mapping population consisting of 261 lines was developed and phenotyped for multiple years at field sites in Mexico and Kenya under the conditions of artificially created rust epidemics. DArTSeq genotyping was performed, and a linkage map was constructed using 7892 informative polymorphic markers. Composite interval mapping identified three significant and consistent loci contributed by Mokue: QLrYr.cim-1BL and QLrYr.cim-2AS on chromosome 1BL and 2AS, respectively associated with stripe rust and leaf rust resistance, and QLrSr.cim-2DS on chromosome 2DS for leaf rust and stem rust resistance. The QTL on 1BL was confirmed to be the Lr46/Yr29 locus, whereas the QTL on 2AS represented the Yr17/Lr37 region on the 2NS/2AS translocation. The QTL on 2DS was a unique locus conferring leaf rust resistance in Mexico and stem rust resistance in Kenya. In addition to these pleiotropic loci, four minor QTLs were also identified on chromosomes 2DL and 6BS associated with stripe rust, and 3AL and 6AS for stem rust, respectively, using the Kenya disease severity data. Significant decreases in disease severities were also demonstrated due to additive effects of QTLs when present in combinations.
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Affiliation(s)
- Naeela Qureshi
- International Maize and Wheat Improvement Center (CIMMYT), Carretera Mexico-Veracruz Km. 45, El-Batan, Texcoco 56237, Mexico; (N.Q.); (R.P.S.); (B.M.G.); (H.V.-M.)
| | - Ravi Prakash Singh
- International Maize and Wheat Improvement Center (CIMMYT), Carretera Mexico-Veracruz Km. 45, El-Batan, Texcoco 56237, Mexico; (N.Q.); (R.P.S.); (B.M.G.); (H.V.-M.)
| | - Blanca Minerva Gonzalez
- International Maize and Wheat Improvement Center (CIMMYT), Carretera Mexico-Veracruz Km. 45, El-Batan, Texcoco 56237, Mexico; (N.Q.); (R.P.S.); (B.M.G.); (H.V.-M.)
| | - Hedilberto Velazquez-Miranda
- International Maize and Wheat Improvement Center (CIMMYT), Carretera Mexico-Veracruz Km. 45, El-Batan, Texcoco 56237, Mexico; (N.Q.); (R.P.S.); (B.M.G.); (H.V.-M.)
| | - Sridhar Bhavani
- International Maize and Wheat Improvement Center (CIMMYT), Carretera Mexico-Veracruz Km. 45, El-Batan, Texcoco 56237, Mexico; (N.Q.); (R.P.S.); (B.M.G.); (H.V.-M.)
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF Campus, United Nations Avenue, Gigiri, Nairobi P.O. Box 1041-00621, Kenya
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2
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Graham JN, Qureshi N, Ritter C, Manuel P, Wildes AR, Clark L. Experimental Evidence for the Spiral Spin Liquid in LiYbO_{2}. Phys Rev Lett 2023; 130:166703. [PMID: 37154642 DOI: 10.1103/physrevlett.130.166703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/20/2023] [Indexed: 05/10/2023]
Abstract
Spiral spin liquids are an exotic class of correlated paramagnets with an enigmatic magnetic ground state composed of a degenerate manifold of fluctuating spin spirals. Experimental realizations of the spiral spin liquid are scarce, mainly due to the prominence of structural distortions in candidate materials that can trigger order-by-disorder transitions to more conventionally ordered magnetic ground states. Expanding the pool of candidate materials that may host a spiral spin liquid is therefore crucial to realizing this novel magnetic ground state and understanding its robustness against perturbations that arise in real materials. Here, we show that the material LiYbO_{2} is the first experimental realization of a spiral spin liquid predicted to emerge from the J_{1}-J_{2} Heisenberg model on an elongated diamond lattice. Through a complementary combination of high-resolution and diffuse neutron magnetic scattering studies on a polycrystalline sample, we demonstrate that LiYbO_{2} fulfills the requirements for the experimental realization of the spiral spin liquid and reconstruct single-crystal diffuse neutron magnetic scattering maps that reveal continuous spiral spin contours-a characteristic experimental hallmark of this exotic magnetic phase.
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Affiliation(s)
- J N Graham
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
- Institut Laue-Langevin, 71 avenue des Martyrs, CS20156, 38042 Grenoble Cédex 9, France
| | - N Qureshi
- Institut Laue-Langevin, 71 avenue des Martyrs, CS20156, 38042 Grenoble Cédex 9, France
| | - C Ritter
- Institut Laue-Langevin, 71 avenue des Martyrs, CS20156, 38042 Grenoble Cédex 9, France
| | - P Manuel
- ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - A R Wildes
- Institut Laue-Langevin, 71 avenue des Martyrs, CS20156, 38042 Grenoble Cédex 9, France
| | - L Clark
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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Nsabiyera V, Qureshi N, Li J, Randhawa M, Zhang P, Forrest K, Bansal U, Bariana H. Relocation of Sr48 to Chromosome 2D Using an Alternative Mapping Population and Development of a Closely Linked Marker Using Diverse Molecular Technologies. Plants (Basel) 2023; 12:1601. [PMID: 37111824 PMCID: PMC10142899 DOI: 10.3390/plants12081601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
The Ug99-effective stem rust resistance gene Sr48 was mapped to chromosome 2A based on its repulsion linkage with Yr1 in an Arina/Forno recombinant inbred line (RIL) population. Attempts to identify markers closely linked to Sr48 using available genomic resources were futile. This study used an Arina/Cezanne F5:7 RIL population to identify markers closely linked with Sr48. Using the Arina/Cezanne DArTseq map, Sr48 was mapped on the short arm of chromosome 2D and it co-segregated with 12 markers. These DArTseq marker sequences were used for BlastN search to identify corresponding wheat chromosome survey sequence (CSS) contigs, and PCR-based markers were developed. Two simple sequence repeat (SSR) markers, sun590 and sun592, and two Kompetitive Allele-Specific PCR (KASP) markers were derived from the contig 2DS_5324961 that mapped distal to Sr48. Molecular cytogenetic analysis using sequential fluorescent in situ hybridization (FISH) and genomic in situ hybridization (GISH) identified a terminal translocation of chromosome 2A in chromosome 2DL of Forno. This translocation would have led to the formation of a quadrivalent involving chromosomes 2A and 2D in the Arina/Forno population, which would have exhibited pseudo-linkage between Sr48 and Yr1 in chromosome 2AL. Polymorphism of the closet marker sunKASP_239 among a set of 178 wheat genotypes suggested that this marker can be used for marker-assisted selection of Sr48.
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Affiliation(s)
- Vallence Nsabiyera
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia
- Nabuin Zonal Agricultural Research and Development Institute, National Agricultural Research Organization, Moroto P.O. Box 132, Uganda
| | - Naeela Qureshi
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia
- International Maize and Wheat Improvement Center (CIMMYT), Carretera Mexico-Veracruz Km. 45, El Batan, Texcoco C.P. 56237, Mexico
| | - Jianbo Li
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia
| | - Mandeep Randhawa
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia
- International Maize and Wheat Improvement Center (CIMMYT), World Agroforestry Centre (ICRAF Campus), UN Avenue, Gigiri, Nairobi P.O. Box 1041-00621, Kenya
| | - Peng Zhang
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia
| | - Kerrie Forrest
- Agriculture Victoria, AgriBio, Centre for AgriBioscience, 5 Ring Rd., Bundoora, VIC 3083, Australia
| | - Urmil Bansal
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia
| | - Harbans Bariana
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia
- School of Science, Faculty of Science, Hawkesbury Campus, Western Sydney University, Richmond, NSW 2753, Australia
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Rajendran NR, Qureshi N, Pourkheirandish M. Genotyping by Sequencing Advancements in Barley. Front Plant Sci 2022; 13:931423. [PMID: 36003814 PMCID: PMC9394214 DOI: 10.3389/fpls.2022.931423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Barley is considered an ideal crop to study cereal genetics due to its close relationship with wheat and diploid ancestral genome. It plays a crucial role in reducing risks to global food security posed by climate change. Genetic variations in the traits of interest in crops are vital for their improvement. DNA markers have been widely used to estimate these variations in populations. With the advancements in next-generation sequencing, breeders could access different types of genetic variations within different lines, with single-nucleotide polymorphisms (SNPs) being the most common type. However, genotyping barley with whole genome sequencing (WGS) is challenged by the higher cost and computational demand caused by the large genome size (5.5GB) and a high proportion of repetitive sequences (80%). Genotyping-by-sequencing (GBS) protocols based on restriction enzymes and target enrichment allow a cost-effective SNP discovery by reducing the genome complexity. In general, GBS has opened up new horizons for plant breeding and genetics. Though considered a reliable alternative to WGS, GBS also presents various computational difficulties, but GBS-specific pipelines are designed to overcome these challenges. Moreover, a robust design for GBS can facilitate the imputation to the WGS level of crops with high linkage disequilibrium. The complete exploitation of GBS advancements will pave the way to a better understanding of crop genetics and offer opportunities for the successful improvement of barley and its close relatives.
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Affiliation(s)
- Nirmal Raj Rajendran
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Naeela Qureshi
- International Maize and Wheat Improvement Center (CIMMYT), El Batan, Texcoco, Estado de Mexico, Mexico
| | - Mohammad Pourkheirandish
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC, Australia
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Iyen B, Vinogradova Y, Akyea RK, Weng S, Qureshi N, Kai J. Ethnic disparities in mortality among overweight or obese adults with newly diagnosed type 2 diabetes: a population-based cohort study. J Endocrinol Invest 2022; 45:1011-1020. [PMID: 35025081 PMCID: PMC8995280 DOI: 10.1007/s40618-021-01736-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 12/23/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE Ethnic variation in risk of type 2 diabetes is well established, but its impact on mortality is less well understood. This study investigated the risk of all-cause and cardiovascular mortality associated with newly diagnosed type 2 diabetes in White, Asian and Black adults who were overweight or obese. METHODS This population-based cohort study used primary care records from the UK Clinical Practice Research Datalink, linked with secondary care and death registry records. A total of 193,528 obese or overweight adults (BMI of 25 or greater), with ethnicity records and no pre-existing type 2 diabetes were identified between 01 January 1995 and 20 April 2018. Multivariable Cox proportional hazards regression estimated hazards ratios (HR) for incident type 2 diabetes in different ethnic groups. Adjusted hazards ratios for all-cause and cardiovascular mortality were determined in individuals with newly diagnosed type 2 diabetes. RESULTS During follow-up (median 9.8 years), the overall incidence rate of type 2 diabetes (per 1,000 person-years) was 20.10 (95% CI 19.90-20.30). Compared to Whites, type 2 diabetes risk was 2.2-fold higher in Asians (HR 2.19 (2.07-2.32)) and 30% higher in Blacks (HR 1.34 (1.23-1.46)). In individuals with newly diagnosed type 2 diabetes, the rates (per 1,000 person-years) of all-cause mortality and cardiovascular mortality were 24.34 (23.73-24.92) and 4.78 (4.51-5.06), respectively. Adjusted hazards ratios for mortality were significantly lower in Asians (HR 0.70 (0.55-0.90)) and Blacks (HR 0.71 (0.51-0.98)) compared to Whites, and these differences in mortality risk were not explained by differences in severity of hyperglycaemia. CONCLUSIONS/INTERPRETATION Type 2 diabetes risk in overweight and obese adults is greater in Asian and Black compared to White ethnic populations, but mortality is significantly higher in the latter. Greater attention to optimising screening, disease and risk management appropriate to all communities with type 2 diabetes is needed.
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Affiliation(s)
- B Iyen
- Primary Care Stratified Medicine, Population Health and Lifespan Sciences, University of Nottingham, Nottingham, UK.
| | - Y Vinogradova
- Primary Care Stratified Medicine, Population Health and Lifespan Sciences, University of Nottingham, Nottingham, UK
| | - R K Akyea
- Primary Care Stratified Medicine, Population Health and Lifespan Sciences, University of Nottingham, Nottingham, UK
| | - S Weng
- Primary Care Stratified Medicine, Population Health and Lifespan Sciences, University of Nottingham, Nottingham, UK
| | - N Qureshi
- Primary Care Stratified Medicine, Population Health and Lifespan Sciences, University of Nottingham, Nottingham, UK
| | - J Kai
- Primary Care Stratified Medicine, Population Health and Lifespan Sciences, University of Nottingham, Nottingham, UK
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6
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Ruiz-Martín MD, Qureshi N, González MA, Ollivier J, Frick B, Farago B. Influence of water on the microscopic dynamics of 1-butyl-3-methylimidazolium tetrafluoroborate studied by means of quasielastic neutron scattering. J Chem Phys 2022; 156:084505. [DOI: 10.1063/5.0082088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a systematic study on the effect of water on the microscopic dynamics of 1-butyl-3-methylimidazolium tetrafluoroborate by means of quasielastic neutron scattering. By mixing the ionic liquid with either heavy or light water, the different contributions to the quasielastic broadening could be identified and treated separately. This study was performed at room temperature, which is more than 15 °C above the demixing line. Our results show that even small amounts of water accelerate the diffusion mechanisms considerably. While samples with small water percentage reveal a diffusion process confined within ionic liquid nanodomains, an admixture of more than 15 wt. % water relieves the confinement. Furthermore, the presence of two water species was identified: one behaving as free water, whereas the other was interpreted as a component bound to the ionic liquid motion. Based on the fact that water preferentially binds to the BF4 anion, which itself has a negligible contribution to the scattered intensity, our experiments reveal unprecedented information about the microscopic anion dynamics.
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Affiliation(s)
- M. D. Ruiz-Martín
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - N. Qureshi
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - M. A. González
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - J. Ollivier
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - B. Frick
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - B. Farago
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
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Gogoi M, Armitage R, Brown G, Ryan B, Eborall H, Qureshi N, O'Donnell CA, Ciftci Y, Pareek M, Nellums LB. Putting the voices and insights of migrants and diverse ethnic groups at the centre of our response to COVID-19. Public Health 2021; 197:e1-e3. [PMID: 33741187 PMCID: PMC7547632 DOI: 10.1016/j.puhe.2020.09.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 09/14/2020] [Indexed: 12/20/2022]
Affiliation(s)
- M Gogoi
- University of Leicester, UK.
| | | | - G Brown
- University of Leicester, UK.
| | - B Ryan
- University of Leicester, UK.
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Ali NADINE, Arnold AD, Miyazawa AA, Keene D, Peters NS, Kanagaratnam P, Qureshi N, Ng FS, Linton N, Lefroy D, Francis D, Lim PB, Whinnett ZI, Kellman P, Cole GD. Septal late gadolinium enhancement on Cardiac MRI predicts failure to achieve left bundle pacing. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab090.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): British Heart Foundation
Background; Left bundle area pacing is a novel technique that provides direct stimulation of cardiac conduction tissue in order to deliver physiological ventricular activation. The approach for left bundle area pacing is transseptal lead implantation, where the lead is advanced from the right ventricular side of the septum to the left ventricular side to capture the proximal left bundle. Observational data suggests that whilst this is a safe and feasible method, implant success rate is not 100%, and appears to be lower in patients with a cardiac resynchronization therapy (CRT) indication rather than a bradycardia indication for pacing. The mechanisms for failure to advance the lead through the ventricular septum are not well understood.
Purpose; We used pre-procedural CMR to determine whether there are features which can help identify patients where lead implantation may be challenging. We assessed whether the extent and location of septal late gadolinium enhancement identified patients in whom left bundle area pacing will be challenging. We hypothesized that the presence of extensive scar in the septum impedes advancing the lead to the left ventricular septum and prevents capture of the left bundle.
Methods; Patients underwent cardiac MRI including motion corrected free-breathing late gadolinium enhancement imaging1 before implantation. Scar was quantified using the full height half maximum method and expressed as the overall proportion of myocardial mass in the basal anteroseptal and basal inferoseptal segments, as shown in Figure 1. Left bundle area pacing was then attempted in patients with a CRT indication for pacing. We compared the extent of septal scar between patients in whom left bundle area pacing was achieved and those where there was failure to advance the lead deep into the septum.
Results; 12 patients (11 male, 1 female), with average age 72 (IQR 63 to 78) and LVEF 30% (IQR 26 to 33) were studied. There was failure to advance the lead deep into the septum in 4 patients. There was a significantly higher basal septal scar burden in those patients where there was failure to advance the left bundle lead compared to those in which left bundle capture was achieved as shown in Figure 2 (median 55% and 5% respectively, p-value 0.02 by Wilcoxon signed rank test).
Conclusion; The presence and extent of late gadolinium enhancement in the basal septum appears to be an important determinant of successful implantation of left bundle pacing lead using current implant technology. This may be because extensive septal scar prevents advancement of the pacing lead through the septum. Cardiac MRI before left bundle area pacing is likely to be useful in procedural planning.
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Affiliation(s)
- NADINE Ali
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - AD Arnold
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - AA Miyazawa
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - D Keene
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - NS Peters
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kanagaratnam
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - N Qureshi
- Imperial College Healthcare NHS Trust, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - FS Ng
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - N Linton
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - D Lefroy
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - D Francis
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - PB Lim
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - ZI Whinnett
- National Heart and Lung Institute Imperial College, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kellman
- National Heart Lung and Blood Institute, MRI, Bethesda, United States of America
| | - GD Cole
- Imperial College Healthcare NHS Trust, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
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Kanwal M, Qureshi N, Gessese M, Forrest K, Babu P, Bariana H, Bansal U. An adult plant stripe rust resistance gene maps on chromosome 7A of Australian wheat cultivar Axe. Theor Appl Genet 2021; 134:2213-2220. [PMID: 33839800 DOI: 10.1007/s00122-021-03818-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
An adult plant stripe rust resistance gene Yr75 was located on the long arm of chromosome 7A. Fine mapping of the region identified markers closely linked with Yr75. Australian wheat cultivar Axe produced resistant to moderately resistant stripe rust responses under field conditions and was exhibiting seedling responses varying from 33C to 3+ under greenhouse conditions. Experiments covering tests at different growth stages (2nd, 3rd and 4th leaf stages) demonstrated the clear expression of resistance at the 4th leaf stage under controlled-environment greenhouse conditions. A recombinant inbred line (RIL) population was developed from the Axe/Nyabing-3 (Nyb) cross. Genetic analysis of Axe/Nyb RIL population in the greenhouse at the 4th leaf stage showed monogenic inheritance of stripe rust resistance. Selective genotyping using the iSelect 90 K Infinium SNP genotyping array was performed, and the resistance locus was mapped to the long arm of chromosome 7A and named Yr75. The Axe/Nyb RIL population was genotyped using a targeted genotype-by-sequencing assay, and the resistance-linked SNPs were converted into kompetitive allele-specific PCR (KASP) markers. These markers were tested on the entire Axe/Nyb RIL population, and markers sunKASP_430 and sunKASP_427 showed close association with Yr75 in the Axe/Nyb RIL population. A high-resolution mapping family of 1032 F2 plants from the Axe/Nyb cross was developed and genotyped with sunKASP_430 and sunKASP_427, and these markers flanked Yr75 at 0.3 cM and 0.4 cM, respectively. These markers cover 1.24 Mb of the physical map of Chinese Spring, and this information will be useful for map-based cloning of Yr75.
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Affiliation(s)
- Mehwish Kanwal
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
| | - Naeela Qureshi
- Agriculture Victoria, AgriBio, Centre for AgriBioscience, 5 Ring Rd, Bundoora, VIC, 3083, Australia
| | - Mesfin Gessese
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
| | - Kerrie Forrest
- Agriculture Victoria, AgriBio, Centre for AgriBioscience, 5 Ring Rd, Bundoora, VIC, 3083, Australia
| | - Prashanth Babu
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
| | - Harbans Bariana
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia.
| | - Urmil Bansal
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia.
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Arnold A, Shun-Shin MJ, Keene D, Howard JP, Chow J, Miyazawa AA, Qureshi N, Lefroy DC, Koa-Wing M, Linton NWF, Lim PB, Peters NS, Kanagaratnam P, Francis DP, Whinnett ZI. Non-selective and selective His bundle pacing both preserve left ventricular activation time and pattern. Europace 2021. [DOI: 10.1093/europace/euab116.379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): British Heart Foundation
Background: His bundle pacing can be achieved in two ways
selective His bundle pacing, where the His bundle is captured alone, and non-selective His bundle pacing, where local myocardium is also captured resulting a pre-excited ECG appearance. We assessed the impact of this ventricular pre-excitation on left and right ventricular dys-synchrony.
Methods
We recruited patients who displayed both selective and non-selective His bundle pacing. We performed non-invasive epicardial electrical mapping to determine left and right ventricular activation times and patterns.
Results
In the primary analysis (n = 20, all patients), non-selective His bundle pacing did not prolong LVAT compared to select His bundle pacing by a pre-specified non-inferiority margin of 10ms (LVAT prolongation: -5.5ms, 95% confidence interval (CI): -0.6 to -10.4, non-inferiority p < 0.0001). Non-selective His bundle pacing did not prolong right ventricular activation time (4.3ms, 95%CI: -4.0 to 12.8, p = 0.296) but did prolong QRS duration (22.1ms, 95%CI: 11.8 to 32.4, p = 0.0003).
In patients with narrow intrinsic QRS (n = 6), non-selective His bundle pacing preserved left ventricular activation time (-2.9ms, 95%CI: -9.7 to 4.0, p = 0.331) but prolonged QRS duration (31.4ms, 95%CI: 22.0 to 40.7, p = 0.0003) and mean right ventricular activation time (16.8ms, 95%CI: -5.3 to 38.9, p = 0.108) compared to selective His bundle pacing.
Activation pattern of the left ventricular surface was unchanged between selective and non-selective His bundle pacing. Non-selective His bundle pacing produced early basal right ventricular activation, which was not observed with selective His bundle pacing.
Conclusions
Compared to selective His bundle pacing, local myocardial capture during non-selective His bundle pacing produces right ventricular pre-excitation resulting in prolongation of QRS duration. However, non-selective His bundle pacing preserves the left ventricular activation time and pattern of selective His bundle pacing. When choosing between selective and non-selective His bundle pacing, left ventricular dyssynchrony is not an important factor. Abstract Figure: Selective vs Non-Selective HBP
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Affiliation(s)
- A Arnold
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - MJ Shun-Shin
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - D Keene
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - JP Howard
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - J Chow
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - AA Miyazawa
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - N Qureshi
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - DC Lefroy
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - M Koa-Wing
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - NWF Linton
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - PB Lim
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - NS Peters
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kanagaratnam
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - DP Francis
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - ZI Whinnett
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
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11
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Kumar S, Bhardwaj SC, Gangwar OP, Sharma A, Qureshi N, Kumaran VV, Khan H, Prasad P, Miah H, Singh GP, Sharma K, Verma H, Forrest KL, Trethowan RM, Bariana HS, Bansal UK. Lr80: A new and widely effective source of leaf rust resistance of wheat for enhancing diversity of resistance among modern cultivars. Theor Appl Genet 2021; 134:849-858. [PMID: 33388887 DOI: 10.1007/s00122-020-03735-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
A new leaf rust resistance gene Lr80 was identified and closely linked markers were developed for its successful pyramiding with other marker-tagged genes to achieve durable control of leaf rust. Common wheat landrace Hango-2, collected in 2006 from the Himalayan area of Hango, District Kinnaur, in Himachal Pradesh, exhibited a very low infection type (IT;) at the seedling stage to all Indian Puccinia triticina (Pt) pathotypes, except the pathotype 5R9-7 which produced IT 3+. Genetic analysis based on Agra Local/Hango-2-derived F3 families indicated monogenic control of leaf rust resistance, and the underlying locus was temporarily named LrH2. Bulked segregant analysis using 303 simple sequence repeat (SSR) markers located LrH2 in the short arm of chromosome 2D. An additional set of 10 chromosome 2DS-specific markers showed polymorphism between the parents and these were mapped on the entire Agra Local/Hango-2 F3 population. LrH2 was flanked by markers cau96 (distally) and barc124 (proximally). The 90 K Infinium SNP array was used to identify SNP markers linked with LrH2. Markers KASP_17425 and KASP_17148 showed association with LrH2. Comparison of seedling leaf rust response data and marker locations across different maps demonstrated the uniqueness of LrH2 and it was formally named Lr80. The Lr80-linked markers KASP_17425, KASP_17148 and barc124 amplified alleles/products different to Hango-2 in 82 Australian cultivars indicating their robustness for marker-assisted selection of this gene in wheat breeding programs.
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Affiliation(s)
- Subodh Kumar
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research Regional Station, Flowerdale, Shimla, Himachal Pradesh, 171 002, India
| | - Subhash C Bhardwaj
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research Regional Station, Flowerdale, Shimla, Himachal Pradesh, 171 002, India.
| | - Om P Gangwar
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research Regional Station, Flowerdale, Shimla, Himachal Pradesh, 171 002, India
| | - Akanksha Sharma
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, Sydney, NSW, 2570, Australia
| | - Naeela Qureshi
- Agriculture Victoria, AgriBio, Centre for AgriBioscience, 5 Ring Rd, Bundoora, Victoria, 3083, Australia
| | - Vikas V Kumaran
- Indian Council of Agricultural Research (ICAR), Indian Agricultural Research Institute Regional Station, Wellington, Nilgiris, Tamil Nadu, 643231, India
| | - Hanif Khan
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research Regional Station, Flowerdale, Shimla, Himachal Pradesh, 171 002, India
| | - Pramod Prasad
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research Regional Station, Flowerdale, Shimla, Himachal Pradesh, 171 002, India
| | - Hanif Miah
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, Sydney, NSW, 2570, Australia
| | - Gyanendra P Singh
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research, Karnal, Haryana, 132001, India
| | - Kiran Sharma
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research Regional Station, Flowerdale, Shimla, Himachal Pradesh, 171 002, India
| | - Hemlata Verma
- Indian Council of Agricultural Research (ICAR), Indian Institute of Wheat and Barley Research Regional Station, Flowerdale, Shimla, Himachal Pradesh, 171 002, India
| | - Kerrie L Forrest
- Agriculture Victoria, AgriBio, Centre for AgriBioscience, 5 Ring Rd, Bundoora, Victoria, 3083, Australia
| | - Richard M Trethowan
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, Sydney, NSW, 2570, Australia
| | - Harbans S Bariana
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, Sydney, NSW, 2570, Australia.
| | - Urmil K Bansal
- School of Life Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, Sydney, NSW, 2570, Australia.
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12
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Songvilay M, Petit S, Damay F, Roux G, Qureshi N, Walker HC, Rodriguez-Rivera JA, Gao B, Cheong SW, Stock C. From One- to Two-Magnon Excitations in the S=3/2 Magnet β-CaCr_{2}O_{4}. Phys Rev Lett 2021; 126:017201. [PMID: 33480800 DOI: 10.1103/physrevlett.126.017201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 10/14/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
We apply neutron spectroscopy to measure the magnetic dynamics in the S=3/2 magnet β-CaCr_{2}O_{4} (T_{N}=21 K). The low-energy fluctuations, in the ordered state, resemble large-S linear spin waves from the incommensurate ground state. However, at higher energy transfers, these semiclassical and harmonic dynamics are replaced by an energy and momentum broadened continuum of excitations. Applying kinematic constraints required for energy and momentum conservation, sum rules of neutron scattering, and comparison against exact diagonalization calculations, we show that the dynamics at high-energy transfers resemble low-S one-dimensional quantum fluctuations. β-CaCr_{2}O_{4} represents an example of a magnet at the border between classical Néel and quantum phases, displaying dual characteristics.
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Affiliation(s)
- M Songvilay
- School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - S Petit
- Laboratoire Léon Brillouin, CEA-CNRS UMR 12, 91191 Gif-Sur-Yvette Cedex, France
| | - F Damay
- Laboratoire Léon Brillouin, CEA-CNRS UMR 12, 91191 Gif-Sur-Yvette Cedex, France
| | - G Roux
- Université Paris-Saclay, CNRS, LPTMS, 91405 Orsay, France
| | - N Qureshi
- Institut Laue-Langevin, 6 rue Jules Horowitz, Boite postale 156, 38042 Grenoble, France
| | - H C Walker
- ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, United Kingdom
| | - J A Rodriguez-Rivera
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
- Department of Materials Science, University of Maryland, College Park, Maryland 20742, USA
| | - B Gao
- Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA
| | - S-W Cheong
- Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA
| | - C Stock
- School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
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13
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Iyen B, Qureshi N, Roderick P, Durrington P, Mcdowell I, Soran H, Neil A, Weng S, Humphries S. Characteristics and cardiovascular disease morbidity of men and women with familial hypercholesterolaemia (FH): a cohort study using data from the UK Simon Broome register linked with secondary care records. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Iyen B, Qureshi N, Roderick P, Capps N, Durrington P, Mcdowell I, Soran H, Neil A, Weng S, Humphries S. Cardiovascular disease incidence in 21 years follow-up in severe and non-severe familial hypercholesterolaemia (FH) : Data from the UK Simon Broome FH register. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Abdulazeez Z, Kukreja N, Qureshi N, Lascelles S. Colonoscopy and flexible sigmoidoscopy for follow-up of patients with left-sided diverticulitis. Ann R Coll Surg Engl 2020; 102:744-747. [PMID: 32820657 DOI: 10.1308/rcsann.2020.0181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION The prevalence of diverticular disease has been increasing in the western world over the last few decades, causing a growing burden on health care systems. This study compared the uses of flexible sigmoidoscopy with colonoscopy as a follow-up investigation for patients diagnosed with acute left-sided diverticulitis and to evaluate the need for using either procedure. MATERIALS AND METHODS A retrospective study of 327 patients diagnosed with acute diverticulitis was carried out. Of this total, 240 patients with left-sided diverticulitis diagnosed via computed tomography were included. These patients were categorised into two equal groups: the first 120 patients underwent colonoscopy and the second 120 patients underwent flexible sigmoidoscopy. RESULTS All colonoscopes and flexible sigmoidoscopes confirmed the computed tomography diagnosis of sigmoid diverticular disease with no major new findings. All colonoscopes and flexible sigmoidoscopes were reported as having no complications, with nine colonoscopes reported as being difficult compared with only three flexible sigmoidoscopes. All biopsies were reported as no malignancy. Full bowel preparation was required in all colonoscopes, compared with no preparation required for flexible sigmoidoscopes. CONCLUSIONS There is no evidence to support the routine use of endoscopic evaluation after an episode of left-sided diverticulitis diagnosed on computed tomography if no worrying radiological findings have been reported. This study supports similar findings from other studies and therefore we disagree with The Royal College of Surgeons of England (Association of Coloproctology of Great Britain and Ireland recommendations) commissioning guide, which advocates routine surveillance of the colon.
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Affiliation(s)
| | - N Kukreja
- Medway Maritime Hospital, Gillingham, UK
| | - N Qureshi
- Medway Maritime Hospital, Gillingham, UK
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Panagopoulos D, Nagy S, Kim S, Lampridou M, Linton N, Lefroy D, Whinnett Z, Ng FS, Koa-Wing M, Kanagaratnam P, Peters NS, Qureshi N, Lim PB. P967Role of low voltage ablation in catheter ablation of patients with persistent AF- a single centre experience. Europace 2020. [DOI: 10.1093/europace/euaa162.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Research grant from Abbott
Introduction
We have recently described a novel evaluation of AF voltage which correlates better with MRI-DE defined scar than sinus rhythm voltage. We evaluated the clinical efficacy of additional voltage-based substrate modification in the Persistent AF patient cohort in a single centre case series.
Methods
22 PsAF patients undergoing catheter ablation were recruited. Left atrial electroanatomical maps were created in AF before any ablation was performed in all patients. Mean peak to peak AF voltage mapping was undertaken using 8s segments of AF (<0.35mV). PVI was then performed in all patients after which, further ablation lesions were delivered on the underlying scar tissue (transection, box formation or homogenisation).
Results
Of the 22 patients currently under follow up, 16 patients are more than 12 months after their initial procedure. 11/16 patients have had no recurrence and no patient is currently on anti-arrhythmic medication.
Conclusion
From our series, 69% of PsAF patients remain arrhythmia free at one year follow up post blanking period with a single procedure. Ablation of low voltage areas appears to infer incremental benefit in the Persistent AF population.
Table 1 Mean Age, yrs 64 ± 9 Male 19 (86.3) Diabetes mellitus 1 (4.5) Hypertension 7 (31.8) TIA/CVA 2 (9) Left ventricular EF ≥55% 22 (100.0) LA size (diameter, according to British Society of Echocardiography Guidelines) Normal -Mild 12 (54.5) Moderate - Severe 10 (45.5) Mean AF duration, months 24.2 ± 20.8 Current antiarrhythmic strategy Amiodarone 3 (13.6) Sotalol 1 (4.5) Current anticoagulation Warfarin 3 (13.6) Direct oral anticoagulants 19 (86.3) Values are mean ± SD or N (%) or duration in months ± SD AF = atrial fibrillation; CVA= cerebrovascular accident; EF = ejection fraction; LA = left atrium; TIA = transient ischaemic attack. Baseline characteristics of patients (n = 22)
Abstract Figure. Ablation sets and AF Voltage
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Affiliation(s)
- D Panagopoulos
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - S Nagy
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - S Kim
- Abbott Inc, St Paul, MN, United States of America
| | - M Lampridou
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - N Linton
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - D Lefroy
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - Z Whinnett
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - F S Ng
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - M Koa-Wing
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kanagaratnam
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - N S Peters
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - N Qureshi
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - P B Lim
- Imperial College Healthcare NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
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17
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Qureshi N, Gu Q, Li P. Whole genome sequence analysis and in vitro probiotic characteristics of a Lactobacillus strain Lactobacillus paracasei ZFM54. J Appl Microbiol 2020; 129:422-433. [PMID: 32119175 DOI: 10.1111/jam.14627] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 02/27/2020] [Accepted: 02/27/2020] [Indexed: 12/11/2022]
Abstract
AIM The aim was to identify a Lactobacillus strain with potential probiotic characteristics by whole-genome sequence analysis and in vitro experimental studies. METHODS AND RESULTS The whole-genome sequencing was carried out using PacBio RSII sequencing method and Illumina's paired-end sequencing technology. Gene prediction and annotation were achieved using GlimmerVersion 3.02 and NCBI prokaryotic Genome Annotation Pipeline. Identification was done by biochemical tests and 16S rRNA sequence analysis. mega 6 software was used to build phylogenetic tree. Antagonism against pathogen was determined by agar well diffusion method. Resistance and stability to bile, simulated gastric acid, different salt concentration and thermostability were investigated. Hydrophobicity assay, aggregation assay and anti-oxidation assay were performed to check further probiotic traits. Finally antibiotic susceptibility and acute oral toxicity of the strain in mice were investigated to check its safety status. The strain showed >99% similarity to Lactobacillus paracasei which was further confirmed by biochemical tests. It significantly inhibited pathogens in agar well diffusion assay. It showed tolerance to simulated gastric acid (pH 3), 0·3% bile salt and 10% NaCl. Significant hydrophobic, aggregation and anti-oxidizing activities were observed. No resistance to antibiotics tested was observed and no adverse effects during acute oral toxicity in mice were detected. CONCLUSIONS Lactobacillus paracasei ZFM 54, a new and safe Lactobacillus strain was identified with numerous probiotic-associated genes and characteristics confirmed by experimental studies. SIGNIFICANCE AND IMPACT OF THE STUDY A new probiotic strain has been identified which is highly stable, safe and suitable to be used in health and food industries.
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Affiliation(s)
- N Qureshi
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Department of Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Q Gu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Department of Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - P Li
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Department of Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
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Evans WRH, Tranter J, Rafi I, Hayward J, Qureshi N. How genomic information is accessed in clinical practice: an electronic survey of UK general practitioners. J Community Genet 2020; 11:377-386. [PMID: 32125658 PMCID: PMC7295869 DOI: 10.1007/s12687-020-00457-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 02/13/2020] [Indexed: 11/28/2022] Open
Abstract
Genomic technologies are having an increasing impact across medicine, including primary care. To enable their wider adoption and realize their potential, education of primary health-care practitioners will be required. To enable the development of such resources, understanding where GPs currently access genomic information is needed. One-hundred fifty-nine UK GPs completed the survey in response to an open invitation, between September 2017 and September 2018. Questions were in response to 4 clinical genomic scenarios, with further questions exploring resources used for rare disease patients, direct-to-consumer genetic testing and collecting a family history. Respondents were most commonly GP principals (independent GPs who own their clinic) (64.8%), aged 35-49 years (54%), worked as a GP for more than 15 years (44%) and practiced within suburban locations (typically wealthier) (50.3%). The most popular 'just in time' education source for all clinical genomic scenarios were online primary care focussed resources with general Internet search engines also popular. For genomic continuous medical education, over 70% of respondents preferred online learning. Considering specific scenarios, local guidelines were a popular resource for the familial breast cancer scenario. A large proportion (41%) had not heard of Genomics England's 100,000 genome project. Few respondents (4%) would access rare disease specific Internet resources (Orphanet, OMIM). Twenty-five percent of respondents were unsure how to respond to a direct-to-consumer commercial genetic test query, with 41% forwarding such queries to local genetic services. GPs require concise, relevant, primary care focussed resources in trusted and familiar online repositories of information. Inadequate genetic education of GPs could increase burden on local genetic services.
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Affiliation(s)
- W R H Evans
- Primary Care Stratified Medicine (PRISM) Group, Division of Primary Care, University of Nottingham, University Park Campus, Nottingham, NG7 2RD, UK.
| | - J Tranter
- Primary Care Stratified Medicine (PRISM) Group, Division of Primary Care, University of Nottingham, University Park Campus, Nottingham, NG7 2RD, UK
| | - I Rafi
- I.M.B.E, St George's, University of London, London, UK
| | - J Hayward
- Yorkshire and Humber NHS Genomic Medicine Centre, Chapel Allerton Hospital, Leeds, UK
| | - N Qureshi
- Primary Care Stratified Medicine (PRISM) Group, Division of Primary Care, University of Nottingham, University Park Campus, Nottingham, NG7 2RD, UK
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Pakeerathan K, Bariana H, Qureshi N, Wong D, Hayden M, Bansal U. Identification of a new source of stripe rust resistance Yr82 in wheat. Theor Appl Genet 2019; 132:3169-3176. [PMID: 31463519 DOI: 10.1007/s00122-019-03416-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/20/2019] [Indexed: 05/13/2023]
Abstract
Stripe rust resistance gene, Yr82, was mapped in chromosome 3BL using SNP markers. Yr82 interacted with Yr29 to produce lower stripe rust responses at the adult plant stage. Landrace Aus27969 produced low infection types against Australian Puccinia striiformis f. sp. tritici (Pst) pathotypes. A recombinant inbred line (RIL) F7 population from the Aus27969/Avocet S cross was developed. Monogenic segregation for seedling stripe rust response was observed among the RIL population, and the resistance locus was named Yr82. Bulk segregant analysis performed using the iSelect wheat 90 K Infinium SNP array located Yr82 in the long arm of chromosome 3B. The RIL population was screened against stripe rust under field conditions and was genotyped with targeted genotyping-by-sequencing assay. QTL analysis detected the involvement of chromosomes 1B and 3B in controlling stripe rust resistance carried by Aus27969. Incorporation of Yr82 and marker SNPLr46G22 into the linkage map showed that the QTL in 1B and 3B represented Yr29 and Yr82, respectively. Kompetitive allele-specific PCR (KASP) markers sun KASP_300 and KASP_8775 flanked Yr82 distally and proximally, respectively, each at 2 cM distance. These Yr82-linked markers were polymorphic among 84% of Australian cultivars and can be used for marker-assisted selection of Yr82.
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Affiliation(s)
- Kandiah Pakeerathan
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
- Department of Agricultural Biology, The University of Jaffna, Kilinochchi, Sri Lanka
| | - Harbans Bariana
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
| | - Naeela Qureshi
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
- Centre for AgriBioscience, Agriculture Victoria, AgriBio, 5 Ring Road, Bundoora, VIC, 3083, Australia
| | - Debbie Wong
- Centre for AgriBioscience, Agriculture Victoria, AgriBio, 5 Ring Road, Bundoora, VIC, 3083, Australia
| | - Matthew Hayden
- Centre for AgriBioscience, Agriculture Victoria, AgriBio, 5 Ring Road, Bundoora, VIC, 3083, Australia
- School of Applied Systems Biology, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Urmil Bansal
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney Plant Breeding Institute, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia.
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Handa BS, Li X, Qureshi N, Mann I, Kanagaratnam P, Peters NS, Ng FS. P6594Granger Causality-based analysis to accurately identify specific electrophenotypes of myocardial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Clinical identification of fibrillation drivers remains challenging in both atrial and ventricular fibrillation (VF). In this study, we developed novel tools using granger causality (GC) analysis for quantifying the causal relationship between neighbouring fibrillatory signals. We tested whether it was adaptable to low resolution, limited coverage and sequentially acquired data for quantifying global organisation of VF and mapping regions with stable rotational drivers (RDs).
Methods
Eighteen Sprague-Dawley rat hearts were perfused ex vivo for optical mapping studies. VF with differing degrees of organisation was induced with carbenoxolone (10–50μM, n=8), or prior maturation of patchy ventricular fibrosis (n=10) generated by ischaemia-reperfusion. After phase mapping, the data was downsampled to 25% of full resolution to develop validated GC-based tools. The causality pairing index (CPI), a global measure of organisation, quantified propagational effects between all neighboring signals. Low-resolution GC-vector maps localized areas harboring RDs and quantified the prevalence of RDs over time using a novel index called circular interdependence value (CIV). These GC-based tools were then adapted to analyze low-resolution multi-electrode electrograms of sixteen persistent-AF (psAF) patients presenting for a first ablation procedure.
Results
A spectrum of fibrillatory organisation and mechanisms in VF was observed. In rat VF there was a positive correlation between CPI and the number of stable RDs (R2=0.41, p=0.004), and CIV showed a significant difference in driver vs non-driver regions (0.91±0.05 vs 0.35±0.06, p=0.0002). Similarly, in psAF patients, there was a positive correlation between CPI and the number of stable RDs (R2=0.56, p≤0.001). GC vector mapping showed that 8/16 of patients had at least one RD area, and 8/16 had chaotic activity with no RDs.
Conclusion
Mechanisms of myocardial fibrillation occurs along a spectrum between organized activity with discrete areas harboring RDs and disorganised myocardial activation with no RDs. GC maps can be utilised for identifying regions localising RDs with sequential mapping in limited spatial resolution and coverage. In psAF GC-based analysis accurately identified specific fibrillatory mechanisms from low-resolution mapping. GC vector mapping holds potential for development with human fibrillation data as a mapping tool for driver guided ablation.
Acknowledgement/Funding
BHF Programme Grant PG/16/17/32069
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Affiliation(s)
- B S Handa
- Imperial College London, London, United Kingdom
| | - X Li
- Imperial College London, London, United Kingdom
| | - N Qureshi
- Imperial College London, London, United Kingdom
| | - I Mann
- Imperial College London, London, United Kingdom
| | | | - N S Peters
- Imperial College London, London, United Kingdom
| | - F S Ng
- Imperial College London, London, United Kingdom
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21
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Iyen B, Weng S, Kai J, Akyea R, Leonardi-Bee J, Roderick P, Humphries S, Qureshi N. Risk Of Cardiovascular Disease Outcomes In Primary Care Patients With Familial Hypercholesterolaemia: A Prospective Cohort Study. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zghebi SS, Panagioti M, Rutter MK, Ashcroft DM, van Marwijk H, Salisbury C, Chew-Graham CA, Buchan I, Qureshi N, Peek N, Mallen C, Mamas M, Kontopantelis E. Assessing the severity of Type 2 diabetes using clinical data-based measures: a systematic review. Diabet Med 2019; 36:688-701. [PMID: 30672017 DOI: 10.1111/dme.13905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/21/2019] [Indexed: 01/11/2023]
Abstract
AIMS To identify and critically appraise measures that use clinical data to grade the severity of Type 2 diabetes. METHODS We searched MEDLINE, Embase and PubMed between inception and June 2018. Studies reporting on clinical data-based diabetes-specific severity measures in adults with Type 2 diabetes were included. We excluded studies conducted solely in participants with other types of diabetes. After independent screening, the characteristics of the eligible measures including design and severity domains, the clinical utility of developed measures, and the relationship between severity levels and health-related outcomes were assessed. RESULTS We identified 6798 studies, of which 17 studies reporting 18 different severity measures (32 314 participants in 17 countries) were included: a diabetes severity index (eight studies, 44%); severity categories (seven studies, 39%); complication count (two studies, 11%); and a severity checklist (one study, 6%). Nearly 89% of the measures included diabetes-related complications and/or glycaemic control indicators. Two of the severity measures were validated in a separate study population. More severe diabetes was associated with increased healthcare costs, poorer cognitive function and significantly greater risks of hospitalization and mortality. The identified measures differed greatly in terms of the included domains. One study reported on the use of a severity measure prospectively. CONCLUSIONS Health records are suitable for assessment of diabetes severity; however, the clinical uptake of existing measures is limited. The need to advance this research area is fundamental as higher levels of diabetes severity are associated with greater risks of adverse outcomes. Diabetes severity assessment could help identify people requiring targeted and intensive therapies and provide a major benchmark for efficient healthcare services.
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Affiliation(s)
- S S Zghebi
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
- NIHR School for Primary Care Research, Centre for Primary Care, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
| | - M Panagioti
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
- NIHR School for Primary Care Research, Centre for Primary Care, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
| | - M K Rutter
- Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
- Manchester Diabetes Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre (MAHSC), Manchester, Manchester
| | - D M Ashcroft
- NIHR School for Primary Care Research, Centre for Primary Care, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
- Centre for Pharmacoepidemiology and Drug Safety, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
| | - H van Marwijk
- Division of Primary Care and Public Health, Brighton and Sussex Medical School, University of Brighton, Brighton
| | - C Salisbury
- Centre for Academic Primary Care, Department of Population Health Sciences, Bristol Medical School, Bristol
| | - C A Chew-Graham
- Research Institute for Primary Care and Health Sciences, Keele University, Staffordshire
| | - I Buchan
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
- Health eResearch Centre, Division of Informatics, Imaging and Data Science, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester
- Department of Public Health and Policy, Institute of Population Health Sciences, University of Liverpool, Liverpool
| | - N Qureshi
- Primary Care Stratified Medicine (PriSM) group, Division of Primary Care, School of Medicine, University of Nottingham, Nottingham
| | - N Peek
- Health eResearch Centre, Division of Informatics, Imaging and Data Science, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester
| | - C Mallen
- Research Institute for Primary Care and Health Sciences, Keele University, Staffordshire
| | - M Mamas
- Keele Cardiovascular Research group, Centre for Prognosis Research, Institute for Primary Care and Health Sciences, Keele University, Stoke-on-Trent, UK
| | - E Kontopantelis
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
- NIHR School for Primary Care Research, Centre for Primary Care, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester
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Nsabiyera V, Baranwal D, Qureshi N, Kay P, Forrest K, Valárik M, Doležel J, Hayden MJ, Bariana HS, Bansal UK. Fine Mapping of Lr49 Using 90K SNP Chip Array and Flow-Sorted Chromosome Sequencing in Wheat. Front Plant Sci 2019; 10:1787. [PMID: 32117347 PMCID: PMC7010802 DOI: 10.3389/fpls.2019.01787] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 12/20/2019] [Indexed: 05/18/2023]
Abstract
Leaf rust, caused by Puccinia triticina, threatens global wheat production due to the constant evolution of virulent pathotypes that defeat commercially deployed all stage-resistance (ASR) genes in modern cultivars. Hence, the deployment of combinations of adult plant resistance (APR) and ASR genes in new wheat cultivars is desirable. Adult plant resistance gene Lr49 was previously mapped on the long arm of chromosome 4B of cultivar VL404 and flanked by microsatellite markers barc163 (8.1 cM) and wmc349 (10.1 cM), neither of which was sufficiently closely linked for efficient marker assisted selection. This study used high-density SNP genotyping and flow sorted chromosome sequencing to fine-map the Lr49 locus as a starting point to develop a diagnostic marker for use in breeding and to clone this gene. Marker sunKASP_21 was mapped 0.4 cM proximal to Lr49, whereas a group of markers including sunKASP_24 were placed 0.6 cM distal to this gene. Testing of the linked markers on 75 Australian and 90 European cultivars with diverse genetic backgrounds showed that sunKASP_21 was most strongly associated with Lr49. Our results also show that the Lr49 genomic region contains structural variation relative to the reference stock Chinese Spring, possibly an inverted genomic duplication, which introduces a new set of challenges for the Lr49 cloning.
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Affiliation(s)
- Vallence Nsabiyera
- Faculty of Science, School of Life Sciences and Environment, The University of Sydney Plant Breeding Institute, Cobbitty, NSW, Australia
| | - Deepak Baranwal
- Faculty of Science, School of Life Sciences and Environment, The University of Sydney Plant Breeding Institute, Cobbitty, NSW, Australia
| | - Naeela Qureshi
- Faculty of Science, School of Life Sciences and Environment, The University of Sydney Plant Breeding Institute, Cobbitty, NSW, Australia
- Agriculture Victoria Research, AgriBio, Bundoora, VIC, Australia
| | - Pippa Kay
- Agriculture Victoria Research, AgriBio, Bundoora, VIC, Australia
| | - Kerrie Forrest
- Agriculture Victoria Research, AgriBio, Bundoora, VIC, Australia
| | - Miroslav Valárik
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czechia
| | - Jaroslav Doležel
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czechia
| | - Matthew J. Hayden
- Agriculture Victoria Research, AgriBio, Bundoora, VIC, Australia
- School of Applied Systems Biology, La Trobe University, Bundoora, VIC, Australia
- *Correspondence: Matthew J. Hayden, ; Urmil K. Bansal,
| | - Harbans S. Bariana
- Faculty of Science, School of Life Sciences and Environment, The University of Sydney Plant Breeding Institute, Cobbitty, NSW, Australia
| | - Urmil K. Bansal
- Faculty of Science, School of Life Sciences and Environment, The University of Sydney Plant Breeding Institute, Cobbitty, NSW, Australia
- *Correspondence: Matthew J. Hayden, ; Urmil K. Bansal,
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Humphries S, Crosland P, Maconachie R, Buckner S, Mcguire H, Pink J, Qureshi N. Cost-utility analysis of searching electronic health records and cascade testing to identify and diagnose familial hypercholesterolaemia in England and Wales. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nsabiyera V, Bariana HS, Qureshi N, Wong D, Hayden MJ, Bansal UK. Characterisation and mapping of adult plant stripe rust resistance in wheat accession Aus27284. Theor Appl Genet 2018; 131:1459-1467. [PMID: 29560515 DOI: 10.1007/s00122-018-3090-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 03/16/2018] [Indexed: 05/26/2023]
Abstract
A new adult plant stripe rust resistance gene, Yr80, was identified in a common wheat landrace Aus27284. Linked markers were developed and validated for their utility in marker-assisted selection. Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is among the most important constraints to global wheat production. The identification and characterisation of new sources of host plant resistance enrich the gene pool and underpin deployment of resistance gene pyramids in new cultivars. Aus27284 exhibited resistance at the adult plant stage against predominant Pst pathotypes and was crossed with a susceptible genotype Avocet S. A recombinant inbred line (RIL) population comprising 121 lines was developed and tested in the field at three locations in 2016 and two in 2017 crop seasons. Monogenic segregation for adult plant stripe rust response was observed among the Aus27284/Avocet S RIL population and the underlying locus was temporarily designated YrAW11. Bulked-segregant analysis using the Infinium iSelect 90K SNP wheat array placed YrAW11 in chromosome 3B. Kompetitive allele specific PCR (KASP) primers were designed for the linked SNPs and YrAW11 was flanked by KASP_65624 and KASP_53292 (3 cM) proximally and KASP_53113 (4.9 cM) distally. A partial linkage map of the genomic region carrying YrAW11 comprised nine KASP and two SSR markers. The physical position of KASP markers in the pseudomolecule of chromosome 3B placed YrAW11 in the long arm and the location of markers gwm108 and gwm376 in the deletion bin 3BL2-0.22 supported this conclusion. As no other stripe rust resistance locus has been reported in chromosome 3BL, YrAW11 was formally designated Yr80. Marker KASP_ 53113 was polymorphic among 94% of 81 Australian wheat cultivars used for validation.
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Affiliation(s)
- Vallence Nsabiyera
- The University of Sydney Plant Breeding Institute, Cobbitty, NSW, 2570, Australia
| | - Harbans S Bariana
- The University of Sydney Plant Breeding Institute, Cobbitty, NSW, 2570, Australia
| | - Naeela Qureshi
- The University of Sydney Plant Breeding Institute, Cobbitty, NSW, 2570, Australia
| | - Debbie Wong
- Department of Economic Development, Jobs, Transport and Resources, La Trobe University AgriBio, Bundoora, VIC, 3083, Australia
| | - Matthew J Hayden
- Department of Economic Development, Jobs, Transport and Resources, La Trobe University AgriBio, Bundoora, VIC, 3083, Australia
| | - Urmil K Bansal
- The University of Sydney Plant Breeding Institute, Cobbitty, NSW, 2570, Australia.
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Ramírez-Chavarría R, Sánchez-Pérez C, Matatagui D, Qureshi N, Pérez-García A, Hernández-Ruíz J. Ex-vivo biological tissue differentiation by the Distribution of Relaxation Times method applied to Electrical Impedance Spectroscopy. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.04.167] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Qureshi N, Bariana H, Kumran VV, Muruga S, Forrest KL, Hayden MJ, Bansal U. A new leaf rust resistance gene Lr79 mapped in chromosome 3BL from the durum wheat landrace Aus26582. Theor Appl Genet 2018; 131:1091-1098. [PMID: 29396589 DOI: 10.1007/s00122-018-3060-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/19/2018] [Indexed: 05/25/2023]
Abstract
A new leaf rust resistance gene Lr79 has been mapped in the long arm of chromosome 3B and a linked marker was identified for marker-assisted selection. Aus26582, a durum wheat landrace from the A. E. Watkins Collection, showed seedling resistance against durum-specific and common wheat-specific Puccinia triticina (Pt) pathotypes. Genetic analysis using a recombinant inbred line (RIL) population developed from a cross between Aus26582 and the susceptible parent Bansi with Australian Pt pathotype showed digenic inheritance and the underlying loci were temporarily named LrAW2 and LrAW3. LrAW2 was located in chromosome 6BS and this study focused on characterisation of LrAW3 using RILs lacking LrAW2. LrAW3 was incorporated into the DArTseq map of Aus26582/Bansi and was located in chromosome 3BL. Markers linked with LrAW3 were developed from the chromosome survey sequence contig 3B_10474240 in which closely-linked DArTseq markers 1128708 and 3948563 were located. Although bulk segregant analysis (BSA) with the 90 K Infinium array identified 51 SNPs associated with LrAW3, only one SNP-derived KASP marker mapped close to the locus. Deletion bin mapping of LrAW3-linked markers located LrAW3 between bins 3BL11-0.85-0.90 and 3BL7-0.63. Since no other all stage leaf rust resistance gene is located in chromosome 3BL, LrAW3 represented a new locus and was designated Lr79. Marker sun786 mapped 1.8 cM distal to Lr79 and Aus26582 was null for this locus. However, the marker can be reliably scored as it also amplifies a monomorphic fragment that serves as an internal control to differentiate the null status of Aus26582 from reaction failure. This marker was validated among a set of durum and common wheat cultivars and was shown to be useful for marker-assisted selection of Lr79 at both ploidy levels.
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Affiliation(s)
- Naeela Qureshi
- The University of Sydney Plant Breeding Institute, School of Life and Environmental Sciences, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
| | - Harbans Bariana
- The University of Sydney Plant Breeding Institute, School of Life and Environmental Sciences, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia
| | - Vikas Venu Kumran
- ICAR-Indian Agricultural Research Institute Regional Station, Wellington, India
| | - Sivasamy Muruga
- ICAR-Indian Agricultural Research Institute Regional Station, Wellington, India
| | - Kerrie L Forrest
- Agriculture, Energy & Resources, Department of Economic Development, Jobs, Transport and Resources, AgriBio, Bundoora, Australia
| | - Mathew J Hayden
- Agriculture, Energy & Resources, Department of Economic Development, Jobs, Transport and Resources, AgriBio, Bundoora, Australia
| | - Urmil Bansal
- The University of Sydney Plant Breeding Institute, School of Life and Environmental Sciences, 107 Cobbitty Road, Cobbitty, NSW, 2570, Australia.
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Qureshi N, Bariana HS, Zhang P, McIntosh R, Bansal UK, Wong D, Hayden MJ, Dubcovsky J, Shankar M. Genetic Relationship of Stripe Rust Resistance Genes Yr34 and Yr48 in Wheat and Identification of Linked KASP Markers. Plant Dis 2018; 102:413-420. [PMID: 30673523 DOI: 10.1094/pdis-08-17-1144-re] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The Australian continent was free from wheat stripe rust caused by Puccinia striiformis f. sp. tritici until exotic incursions occurred in 1979 and 2002. The 2002 incursion enabled the identification of a new stripe rust resistance gene (Yr34) in the advanced breeding line WAWHT2046. In this study, we developed and validated markers closely linked with Yr34, which is located in the distal region in the long arm of chromosome 5A. Four kompetitive allele-specific polymerase chain reaction (KASP) and three sequence-tagged site (STS) markers derived from the International Wheat Genome Sequencing Consortium RefSeq v1.0 scaffold-77836 cosegregated with Yr34. Markers sun711, sun712, sun725, sunKASP_109, and sunKASP_112 were shown to be suitable for marker-assisted selection in a validation panel of 71 Australian spring wheat genotypes, with the exception of cultivar Orion that carried the Yr34-linked alleles for sunKASP_109 and sunKASP_112. Markers previously reported to be linked with adult plant stripe rust resistance gene Yr48 also cosegregated with Yr34. Wheat genotypes carrying Yr34 and Yr48 produced identical haplotypes for the Yr34-linked markers identified in this study and those previously reported to be linked with Yr48. Phenotypic testing of genotypes carrying Yr34 and Yr48 showed that both genes conferred similar seedling responses to pre-2002 and post-2002 P. striiformis f. sp. tritici pathotypes. Further testing of 600 F2 plants from a cross between WAWHT2046 and RIL143 (Yr48) with P. striiformis f. sp. tritici pathotype 134 E16A+Yr17+Yr27+ failed to reveal any susceptible segregants. Our results strongly suggest that Yr34 and Yr48 are the same gene, and that Yr48 should be considered a synonym of Yr34.
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Affiliation(s)
- N Qureshi
- The University of Sydney Plant Breeding Institute, Faculty of Science, Cobbitty, NSW 2570, Australia
| | - H S Bariana
- The University of Sydney Plant Breeding Institute, Faculty of Science, Cobbitty, NSW 2570, Australia
| | - P Zhang
- The University of Sydney Plant Breeding Institute, Faculty of Science, Cobbitty, NSW 2570, Australia
| | - R McIntosh
- The University of Sydney Plant Breeding Institute, Faculty of Science, Cobbitty, NSW 2570, Australia
| | - U K Bansal
- The University of Sydney Plant Breeding Institute, Faculty of Science, Cobbitty, NSW 2570, Australia
| | - D Wong
- Department of Economic Development, Jobs, Transport and Resources, AgriBio Centre, La Trobe Research and Development Park, Bundoora, VIC 3083, Australia
| | - M J Hayden
- Department of Economic Development, Jobs, Transport and Resources, AgriBio Centre, La Trobe Research and Development Park, Bundoora, VIC 3083, Australia
| | - J Dubcovsky
- Department of Plant Sciences, University of California, Davis 95616
| | - M Shankar
- Agriculture and Food, Department of Primary Industries and Regional Development, South Perth, WA 6151, Australia; and School of Agriculture and Environment, University of Western Australia, Crawley WA 6009, Australia
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Brunt D, Balakrishnan G, Mayoh DA, Lees MR, Gorbunov D, Qureshi N, Petrenko OA. Magnetisation process in the rare earth tetraborides, NdB 4 and HoB 4. Sci Rep 2018; 8:232. [PMID: 29321474 PMCID: PMC5762811 DOI: 10.1038/s41598-017-18301-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 12/06/2017] [Indexed: 11/25/2022] Open
Abstract
A field-induced magnetisation process in the frustrated antiferromagnets is often much richer compared to the materials without competing interactions. The applied field tends to stabilise unusual spin configurations which frequently results in the appearance of magnetisation plateaux. Here we report a study into the field-induced magnetisation of the two frustrated rare earth tetraborides, HoB4 and NdB4. NdB4 shows a fractional magnetisation plateau occurring at M/Msat ≈ \documentclass[12pt]{minimal}
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\begin{document}$$\tfrac{{\bf{1}}}{{\bf{5}}}$$\end{document}15 before saturating in a field of 33 kOe. On cooling down to 0.5 K the temperature dependent susceptibility of NdB4 shows an unconventional transition where the system returns to the zero field antiferromagnetic state from a higher-temperature ferrimagnetic state. We are able to reconstruct the magnetic phase diagram of NdB4 from the magnetisation, susceptibility and resistivity measurements for both H \documentclass[12pt]{minimal}
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\begin{document}$$\parallel $$\end{document}∥ c and H ⊥ c. For HoB4, the most interesting behaviour is found at the lowest temperature of 0.5 K, where the field dependent magnetisation demonstrates a new fractional \documentclass[12pt]{minimal}
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\begin{document}$$\tfrac{{\bf{1}}}{{\bf{2}}}$$\end{document}12-magnetisation plateau. Further insight into the relations between the exchange interactions and single ion effects is gained through high-field magnetisation measurements in both HoB4 and NdB4.
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Affiliation(s)
- D Brunt
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom.
| | - G Balakrishnan
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - D A Mayoh
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - M R Lees
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - D Gorbunov
- Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01314, Dresden, Germany
| | - N Qureshi
- Institut Laue-Langevin, 6 rue Jules Horowitz, BP 156, 28042, Grenoble, Cedex 9, France
| | - O A Petrenko
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom.
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Qureshi N, Bariana H, Kolmer JA, Miah H, Bansal U. Genetic and Molecular Characterization of Leaf Rust Resistance in Two Durum Wheat Landraces. Phytopathology 2017; 107:1381-1387. [PMID: 28812937 DOI: 10.1094/phyto-01-17-0005-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Leaf rust, caused by Puccinia triticina, is a constraint to durum wheat (Triticum turgidum subsp. durum) production, and landraces are reported to be an important source of resistance. Two Portuguese landraces (Aus26582 and Aus26579) showed resistance against durum-specific P. triticina races and were crossed with a susceptible landrace (Bansi) to develop recombinant inbred line (RIL) populations. Monogenic segregation for leaf rust resistance was observed among both RIL populations. The underlying locus, temporarily named LrAW2, was mapped to the short arm of chromosome 6B in the Aus26582/Bansi population and five DArTseq markers cosegregated with LrAW2. Simple sequence repeat markers sun683 and sun684, developed from the chromosome survey sequence (CSS) contig 6BS_2963854, identified through BlastN search of cosegregating DArTseq markers in the International Wheat Genome Sequencing Consortium database, cosegregated with LrAW2. Comparison of the CSS contig 6BS_2963854-based sequences amplified from parental genotypes led to the development of marker sunKASP_60, which also showed close linkage with LrAW2. Markers sun684 and sunKASP_60 showed close association with LrAW2 in both RIL populations. The amplification of LrAW2-specific products by linked markers in Aus26582, Aus26579, and Guayacan (Lr61) indicated that LrAW2 may be Lr61. The alternate amplicon or haplotype produced with LrAW2-linked markers in Australian durum cultivars demonstrated their effectiveness in marker-assisted selection.
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Affiliation(s)
- Naeela Qureshi
- First, second, fourth, and fifth authors: The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW 2567, Australia; and third author: United States Department of Agriculture-Agricultural Research Service Cereal Disease Laboratory, St. Paul, MN, 55108
| | - Harbans Bariana
- First, second, fourth, and fifth authors: The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW 2567, Australia; and third author: United States Department of Agriculture-Agricultural Research Service Cereal Disease Laboratory, St. Paul, MN, 55108
| | - James A Kolmer
- First, second, fourth, and fifth authors: The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW 2567, Australia; and third author: United States Department of Agriculture-Agricultural Research Service Cereal Disease Laboratory, St. Paul, MN, 55108
| | - Hanif Miah
- First, second, fourth, and fifth authors: The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW 2567, Australia; and third author: United States Department of Agriculture-Agricultural Research Service Cereal Disease Laboratory, St. Paul, MN, 55108
| | - Urmil Bansal
- First, second, fourth, and fifth authors: The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW 2567, Australia; and third author: United States Department of Agriculture-Agricultural Research Service Cereal Disease Laboratory, St. Paul, MN, 55108
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Sau A, Sikkel MB, Luther V, Wright I, Guerrero F, Koa-Wing M, Lefroy D, Linton N, Qureshi N, Whinnett Z, Lim PB, Kanagaratnam P, Peters N, Davies DW. 148The sawtooth EKG pattern of typical atrial flutter is not related to differences in conduction velocity around the flutter circuit. Europace 2017. [DOI: 10.1093/europace/eux283.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mann I, Linton NWF, Alexandrov Y, Qureshi N, Koa-Wing M, Lim PB, Whinnett Z, Davies DW, Francis DP, Peters NS, Kanagaratnam P. 85A new mapping technique for atrial fibrillation shows frequent focal and uniform activations. Europace 2017. [DOI: 10.1093/europace/eux283.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Leong KMW, Ng FS, Shun-Shin MJ, Davies N, Francis DP, Lim PB, Qureshi N, Koa-Wing M, Linton N, Whinnett ZI, Lefroy DC, Harding SE, Davies DW, Peters NS, Behr E, Lambiase P, Varnava AM, Kanagaratnam P. 1Non-invasive detection of exercise induced cardiac conduction abnormalities in sudden cardiac death survivors in the inherited arrhythmic syndromes. Europace 2017. [DOI: 10.1093/europace/eux283.141a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Waßer F, Lee CH, Kihou K, Steffens P, Schmalzl K, Qureshi N, Braden M. Anisotropic resonance modes emerging in an antiferromagnetic superconducting state. Sci Rep 2017; 7:10307. [PMID: 28871098 PMCID: PMC5583249 DOI: 10.1038/s41598-017-10208-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 08/04/2017] [Indexed: 11/09/2022] Open
Abstract
Two strong arguments in favor of magnetically driven unconventional superconductivity arise from the coexistence and closeness of superconducting and magnetically ordered phases on the one hand, and from the emergence of magnetic spin-resonance modes at the superconducting transition on the other hand. Combining these two arguments one may ask about the nature of superconducting spin-resonance modes occurring in an antiferromagnetic state. This problem can be studied in underdoped BaFe2 As2, for which the local coexistence of large moment antiferromagnetism and superconductivity is well established by local probes. However, polarized neutron scattering experiments are required to identify the nature of the resonance modes. In the normal state of Co underdoped BaFe2 As2 the antiferromagnetic order results in broad magnetic gaps opening in all three spin directions that are reminiscent of the magnetic response in the parent compound. In the superconducting state two distinct anisotropic resonance excitations emerge, but in contrast to numerous studies on optimum and over-doped BaFe2 As2 there is no isotropic resonance excitation. The two anisotropic resonance modes appearing within the antiferromagnetic phase are attributed to a band selective superconducting state, in which longitudinal magnetic excitations are gapped by antiferromagnetic order with sizable moment.
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Affiliation(s)
- F Waßer
- II. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, D-50937, Köln, Germany.
| | - C H Lee
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8568, Japan
| | - K Kihou
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8568, Japan
| | - P Steffens
- Institut Laue Langevin, 71 avenue des Martyrs, 38000, Grenoble, France
| | - K Schmalzl
- Jülich Centre for Neutron Science, Forschungszentrum Jülich GmbH, Outstation at Institut Laue-Langevin, 71 avenue des Martyrs, 38000, Grenoble, France
| | - N Qureshi
- II. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, D-50937, Köln, Germany.,Institut Laue Langevin, 71 avenue des Martyrs, 38000, Grenoble, France
| | - M Braden
- II. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, D-50937, Köln, Germany.
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Hassan SM, Sultana B, Atta A, Qureshi N, Iqbal M, Abbas M. Aflatoxin, proximate composition and mineral profile of stored broiler feed treated with medicinal plant leaves. J Mycol Med 2017; 27:325-333. [PMID: 28483450 DOI: 10.1016/j.mycmed.2017.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 01/30/2017] [Accepted: 03/02/2017] [Indexed: 11/26/2022]
Abstract
OBJECTIVES In the present investigation, the Morus alba (M. alba), Vitis vinifera (V. vinifera), Ficus religiosa (F. religiosa) and Citrus paradisi (C. paradisi) leaves anti-aflatoxigenic activities were evaluated in Aspergillus flavus (A. flavus) inoculated feed. METHODS The broiler feed inoculated with A. flavus was treated with selected medicinal plant leaf powder (5%, 10% and 15% w/w) and stored for the period of six months at 28°C and 16% moisture. The aflatoxins (AFTs) were estimated at the end of each month by Reversed Phase High Performance Liquid Chromatography (RP-HPLC) method along with proximate composition and mineral contents. RESULTS Plant leaves controlled AFTs efficiently without affecting the feed proximate composition and mineral contents. The M. alba leaves completely inhibition (100%) the AFTs (B1 and B2) in feed at very low concentration (5%). Other plants also showed significant (P<0.05) inhibition of AFTs production without affecting the feed quality over the storage period of six months. CONCLUSION Based on promising efficiency of selected medicinal plant leaves, A. flavus produced AFTs could possibly be controlled in stored poultry feed.
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Affiliation(s)
- S M Hassan
- Department of Chemistry, Lahore Garrison University, Lahore, Pakistan
| | - B Sultana
- Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan.
| | - A Atta
- Department of Biochemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - N Qureshi
- Department of Chemistry, Karakoram International University, Gilgit 15100 Pakistan
| | - M Iqbal
- Department of Chemistry, The University of Lahore, Lahore, Pakistan.
| | - M Abbas
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 54000 Lahore, Pakistan
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Qureshi N, Bariana H, Forrest K, Hayden M, Keller B, Wicker T, Faris J, Salina E, Bansal U. Fine mapping of the chromosome 5B region carrying closely linked rust resistance genes Yr47 and Lr52 in wheat. Theor Appl Genet 2017; 130:495-504. [PMID: 27866228 DOI: 10.1007/s00122-016-2829-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 11/12/2016] [Indexed: 05/26/2023]
Abstract
Fine mapping of Yr47 and Lr52 in chromosome arm 5BS of wheat identified close linkage of the marker sun180 to both genes and its robustness for marker-assisted selection was demonstrated. The widely effective and genetically linked rust resistance genes Yr47 and Lr52 have previously been mapped in the short arm of chromosome 5B in two F3 populations (Aus28183/Aus27229 and Aus28187/Aus27229). The Aus28183/Aus27229 F3 population was advanced to generate an F6 recombinant inbred line (RIL) population to identify markers closely linked with Yr47 and Lr52. Diverse genomic resources including flow-sorted chromosome survey sequence contigs representing the orthologous region in Brachypodium distachyon, the physical map of chromosome arm 5BS, expressed sequence tags (ESTs) located in the 5BS6-0.81-1.00 deletion bin and resistance gene analog contigs of chromosome arm 5BS were used to develop markers to saturate the target region. Selective genotyping was also performed using the iSelect 90 K Infinium wheat SNP assay. A set of SSR, STS, gene-based and SNP markers were developed and genotyped on the Aus28183/Aus27229 RIL population. Yr47 and Lr52 are genetically distinct genes that mapped 0.4 cM apart in the RIL population. The SSR marker sun180 co-segregated with Lr52 and mapped 0.4 cM distal to Yr47. In a high resolution mapping population of 600 F2 genotypes Yr47 and Lr52 mapped 0.2 cM apart and marker sun180 was placed 0.4 cM distal to Lr52. The amplification of a different sun180 amplicon (195 bp) than that linked with Yr47 and Lr52 (200 bp) in 204 diverse wheat genotypes demonstrated its robustness for marker-assisted selection of these genes.
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Affiliation(s)
- Naeela Qureshi
- Faculty of Agriculture, Food and Natural Resources, The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW, 2567, Australia
| | - Harbans Bariana
- Faculty of Agriculture, Food and Natural Resources, The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW, 2567, Australia
| | - Kerrie Forrest
- Department of Economic Development, Jobs, Transport and Resources, La Trobe University AgriBio, Bundoora, VIC, 3083, Australia
| | - Matthew Hayden
- Department of Economic Development, Jobs, Transport and Resources, La Trobe University AgriBio, Bundoora, VIC, 3083, Australia
| | - Beat Keller
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland
| | - Thomas Wicker
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland
| | - Justin Faris
- USDA-ARS Cereal Crops Research Unit, Red River Valley Agricultural Research Center, 1605 Albrecht BLVD, Fargo, ND, 58102-2765, USA
| | - Elena Salina
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Urmil Bansal
- Faculty of Agriculture, Food and Natural Resources, The University of Sydney Plant Breeding Institute, Private Bag 4011, Narellan, NSW, 2567, Australia.
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Chemayek B, Bansal UK, Qureshi N, Zhang P, Wagoire WW, Bariana HS. Tight repulsion linkage between Sr36 and Sr39 was revealed by genetic, cytogenetic and molecular analyses. Theor Appl Genet 2017; 130:587-595. [PMID: 27913833 DOI: 10.1007/s00122-016-2837-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 11/26/2016] [Indexed: 05/13/2023]
Abstract
The shortening of Aegilops speltoides segment did not facilitate recombination between stem rust resistance genes Sr36 and Sr39 . Robustness of marker rwgs28 for marker-assisted selection of Sr39 was demonstrated. Stem rust resistance genes Sr39 and Sr36 were transferred from Aegilops speltoides and Triticum timopheevii, respectively, to chromosome 2B of wheat. Genetic stocks RL6082 and RWG1 carrying Sr39 on a large and a shortened Ae. speltoides segments, respectively, and the Sr36-carrying Australian wheat cultivar Cook were used in this study. This investigation was planned to determine the genetic relationship between these genes. Stem rust tests on F3 populations derived from RL6082/Cook and RWG1/Cook crosses showed tight repulsion linkage between Sr39 and Sr36. The genomic in situ hybridization analysis of heterozygous F3 family from the RWG1/Cook population showed that the translocated segments do not overlap. Meiotic analysis on the F1 plant from RWG1/Cook showed two univalents at the metaphase and anaphase stages in a majority of the cells indicating absence of pairing. Since meiotic pairing has been reported to initiate at the telomere, pairing and recombination may be inhibited due to very little wheat chromatin in the distal end of the chromosome arm 2BS in RWG1. The Sr39-carrying large Ae. speltoides segment transmitted preferentially in the RL6082/Cook F3 population, whereas the Sr36-carrying T. timopheevii segment over-transmitted in the RWG1/Cook cross. Genotyping with the co-dominant Sr39- and Sr36-linked markers rwgs28 and stm773-2, respectively, matched the phenotypic classification of F3 families. The RWG1 allele amplified by rwgs28 was diagnostic for the shortened Ae. speltoides segment and alternate alleles were amplified in 29 Australian cultivars. Marker rwgs28 will be useful in marker-assisted pyramiding of Sr39 with other genes.
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Affiliation(s)
- Bosco Chemayek
- The University of Sydney Plant Breeding Institute-Cobbitty, PMB 4011, Narellan, NSW 2567, Australia
- National Agricultural Research Organisation (NARO), 1356, Mbale, Uganda
| | - Urmil K Bansal
- The University of Sydney Plant Breeding Institute-Cobbitty, PMB 4011, Narellan, NSW 2567, Australia
| | - Naeela Qureshi
- The University of Sydney Plant Breeding Institute-Cobbitty, PMB 4011, Narellan, NSW 2567, Australia
| | - Peng Zhang
- The University of Sydney Plant Breeding Institute-Cobbitty, PMB 4011, Narellan, NSW 2567, Australia
| | - William W Wagoire
- National Agricultural Research Organisation (NARO), 1356, Mbale, Uganda
| | - Harbans S Bariana
- The University of Sydney Plant Breeding Institute-Cobbitty, PMB 4011, Narellan, NSW 2567, Australia.
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Champney F, Maddock L, Welford J, Kemp J, Allan V, Persidskikh Y, Orini M, Ang R, Workman A, Wong L, Honarbakhsh S, Leong K, Silberbauer J, O'Nunain S, Gomes J, McCready J, Bostock J, Shaw K, McKenna C, Bailey J, Honarbakhsh S, Casas J, Wallace J, Hunter R, Schilling R, Perel P, Morley K, Banerjee A, Hemingway H, Mrochak A, Ilyina T, Goncharik D, Chasnoits A, Plashinskaya L, Taggart P, Hayward M, Lambiase P, Hosford P, Kasparov S, Lambiase P, Tinker A, Gourine A, Kettlewell S, Dempster J, Colman M, Rankin A, Myles R, Smith G, Tester D, Jaye A, FitzPatrick D, Evans M, Fleming P, Jeffrey I, Cohen M, Simpson M, Ackerman M, Behr E, Srinivasan N, Kirkby C, Firman E, Tobin L, Murphy C, Lowe M, Hunter RJ, Finlay M, Schilling RJ, Lambiase PD, Ng F, Tomlinson L, Nuthoo S, Cajilog E, Lefroy D, Qureshi N, Koa-Wing M, Whinnett Z, Linton N, Davies D, Lim P, Peters N, Kanagaratnam P, Varnava A. ORAL ABSTRACTS (1)Allied Professionals7CRYOABLATION FOR PAROXYSMAL ATRIAL FIBRILLATION - IS AN EP LAB REQUIRED?8A PATHWAY TO SAFETY - ANTICOAGULATION COMPLIANCE IN CIED PATIENTS WITH AF9UNDERSTANDING THE WAYS IN WHICH OCCUPATION IS AFFECTED BY POSTURAL TACHYCARDIA SYNDROME: A UK OCCUPATIONAL THERAPY PERSPECTIVE10DEVELOPMENT OF AN INTERGRATED SUPPORT PATHWAY FOR PATIENTS FULFILLING NICE CRITERIA FOR AN INTERNAL CARDIOVASCULAR DEBRIBRILLATOR (ICD) IN A DISTRICT GENERAL HOSPITAL11ARE CARDIOVASCULAR RISK FACTORS ALSO ASSOCIATED WITH THE INCIDENCE OF ATRIAL FIBRILLATION? A SYSTEMATIC REVIEW AND FIELD SYNOPSIS OF 23 FACTORS IN 32 INITIALLY HEALTHY COHORTS OF 20 MILLION PARTICIPANTS12BRAIN MRI FINDINGS IN PATIENTS WITH ATRIAL FIBRILLATION UNDERGOING CARDIOVERSIONBasic Science/Sudden Cardiac Death13PRELIMINARY ASSESSMENT OF THE “RE-ENTRY VULNERABILITY INDEX” AS A MARKER OF CARDIAC INSTABILITY IN THE HUMAN HEART USING WHOLE-HEART CONTACT EPICARDIAL MAPPING14OPTOGENETIC STIMULATION OF BRAINSTEM'S VAGAL PREGANGLIONIC NEURONES IS ASSOCIATED WITH NEURONAL NITRIC OXIDE SYNTHASE-DEPENDENT PROLONGATION OF VENTRICULAR EFFECTIVE REFRACTORY PERIOD15A DYNAMIC-CLAMP STUDY OF L-TYPE Ca2+ CURRENT IN RABBIT AND HUMAN ATRIAL MYOCYTES: THE CONTRIBUTION OF WINDOW ICaL TO EARLY AFTERDEPOLARISATIONS16WHOLE EXOME SEQUENCING IN SUDDEN INFANT DEATH SYNDROME17MEDIUM TERM SURVIVAL AND FAMILY SCREENING OUTCOMES IN AN IDIOPATHIC VENTRICULAR FIBRILLATION COHORT - A MULTICENTRE EXPERIENCE18CLINICAL CHARACTERISTICS OF SCD SURVIVORS WITH BRUGADA SYNDROME:- ARE SPONSANEOUS TYPE I ECG AND PREVIOUS SYNCOPE REALLY ASSOCIATED WITH HIGH RISK? Europace 2016. [DOI: 10.1093/europace/euw270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Philippsen T, Orini M, Martin C, Volkova E, Ormerod J, Sohaib S, Elamin N, Blake S, Sawhney V, Ahmad S, Waring O, Bowers R, Raiman L, Hazelwood T, Mills R, Corrado C, Honarbakhsh S, Von Maydell A, Norrish G, Chubb H, Chubb H, Chubb H, Toledano M, Ruiz A, van Zalen J, Foley P, Pearman C, Rehal O, Foley P, Wong L, Foley P, Pearman C, Brahmbhatt D, Khan H, Wardley J, Akbar S, Christensen L, Hansen M, Brandes A, Tinker A, Munroe P, Lambiase P, Honarbakhsh S, McLean A, Lambiase P, Schilling R, Lane J, Chow A, Earley M, Hunter R, Khan F, Lambiase P, Schilling R, Sporton S, Dhinoja M, Camm C, Xavier R, de Sousa M, Betts T, Shun-Shin M, Wright I, Lim E, Lim P, Koawing M, Lefroy D, Linton N, Davies D, Peters N, Kanagaratnam P, Francis D, Whinnett Z, Khan M, Bowes R, Sahu J, Sheridan P, Rogers D, Kyriacou A, Kelland N, Lewis N, Lee J, Segall E, Diab I, Breitenstein A, Ullah W, Sporton S, Earley M, Finlay M, Dhinoja M, Schilling R, Hunter R, Ahmed M, Petkar S, Davidson N, Stout M, Pearce KP, Leo M, Ginks M, Rajappan K, Bashir Y, Balasubramaniam R, Sopher S, Betts T, Paisey J, Cheong J, Roy D, Adhya S, Williams S, O'Neill M, Niederer S, Providencia R, Srinivasan N, Ahsan S, Lowe M, Segal O, Hunter R, Finlay M, Earley M, Schilling R, Lambiase P, Stella S, Cantwell C, Chowdhury R, Kim S, Linton N, Whinnett Z, Koa-Wing M, Lefroy D, Davies DW, Kanagaratnam P, Lim PB, Qureshi N, Peters N, Cantarutti N, Limongelli G, Elliott P, Kaski J, Williams S, Lal K, Harrison J, Whitaker J, Kiedrowicz R, Wright M, O'Neill M, Harrison J, Whitaker J, Williams S, Wright M, Schaeffter T, Razavi R, O'Neill M, Karim R, Williams S, Harrison J, Whitaker J, Wright M, Schaeffter T, Razavi R, O'Neill M, Montanes M, Ella Field E, Walsh H, Callaghan N, Till J, Mangat J, Lowe M, Kaski J, Ruiz Duthil A, Li A, Saba M, Patel N, Beale L, Brickley G, Lloyd G, French A, Khavandi A, McCrea W, Barnes E, Chandrasekaran B, Parry J, Garth L, Chapman J, Todd D, Hobbs J, Modi S, Waktare J, Hall M, Gupta D, Snowdon R, Papageorgiou N, Providência R, Falconer D, Sewart E, Ahsan S, Segal O, Ezzat V, Rowland E, Lowe M, Lambiase P, Chow A, Swift M, Charlton P, James J, Colling A, Barnes E, Starling L, Kontogeorgis A, Roses-Noguer F, Wong T, Jarman J, Clague J, Till J, Colling A, James J, Hawkins M, Burnell S, Chandrasekaran B, Coulson J, Smith L, Choudhury M, Oguguo E, Boyett M, Morris G, Flinn W, Chari A, Belham M, Pugh P, Somarakis K, Parasa R, Allata A, Hashim H, Mathew T, Kayasundar S, Venables P, Quinn J, Ivanova J, Brown S, Oliver R, Lyons M, Chuen M, Walsh J, Robinson T, Staniforth A, Ahsan A, Jamil-Copley S. POSTERS (2)96CONTINUOUS VERSUS INTERMITTENT MONITORING FOR DETECTION OF SUBCLINICAL ATRIAL FIBRILLATION IN HIGH-RISK PATIENTS97HIGH DAY-TO-DAY INTRA-INDIVIDUAL REPRODUCIBILITY OF THE HEART RATE RESPONSE TO EXERCISE IN THE UK BIOBANK DATA98USE OF NOVEL GLOBAL ULTRASOUND IMAGING AND CONTINUEOUS DIPOLE DENSITY MAPPING TO GUIDE ABLATION IN MACRO-REENTRANT TACHYCARDIAS99ANTICOAGULATION AND THE RISK OF COMPLICATIONS IN PATIENTS UNDERGOING VT AND PVC ABLATION100NON-SUSTAINED VENTRICULAR TACHYCARDIA FREQUENTLY PRECEDES CARDIAC ARREST IN PATIENTS WITH BRUGADA SYNDROME101USING HIGH PRECISION HAEMODYNAMIC MEASUREMENTS TO ASSESS DIFFERENCES IN AV OPTIMUM BETWEEN DIFFERENT LEFT VENTRICULAR LEAD POSITIONS IN BIVENTRICULAR PACING102CAN WE PREDICT MEDIUM TERM MORTALITY FROM TRANSVENOUS LEAD EXTRACTION PRE-OPERATIVELY?103PREVENTION OF UNECESSARY ADMISSIONS IN ATRIAL FIBRILLATION104EPICARDIAL CATHETER ABLATION FOR VENTRICULAR TACHYCARDIA ON UNINTERRUPTED WARFARIN: A SAFE APPROACH?105HOW WELL DOES THE NATIONAL INSTITUTE OF CLINICAL EXCELLENCE (NICE) GUIDENCE ON TRANSIENT LOSS OF CONSCIOUSNESS (T-LoC) WORK IN A REAL WORLD? AN AUDIT OF THE SECOND STAGE SPECIALIST CARDIOVASCULAT ASSESSMENT AND DIAGNOSIS106DETECTION OF ATRIAL FIBRILLATION IN COMMUNITY LOCATIONS USING NOVEL TECHNOLOGY'S AS A METHOD OF STROKE PREVENTION IN THE OVER 65'S ASYMPTOMATIC POPULATION - SHOULD IT BECOME STANDARD PRACTISE?107HIGH-DOSE ISOPRENALINE INFUSION AS A METHOD OF INDUCTION OF ATRIAL FIBRILLATION: A MULTI-CENTRE, PLACEBO CONTROLLED CLINICAL TRIAL IN PATIENTS WITH VARYING ARRHYTHMIC RISK108PACEMAKER COMPLICATIONS IN A DISTRICT GENERAL HOSPITAL109CARDIAC RESYNCHRONISATION THERAPY: A TRADE-OFF BETWEEN LEFT VENTRICULAR VOLTAGE OUTPUT AND EJECTION FRACTION?110RAPID DETERIORATION IN LEFT VENTRICULAR FUNCTION AND ACUTE HEART FAILURE AFTER DUAL CHAMBER PACEMAKER INSERTION WITH RESOLUTION FOLLOWING BIVENTRICULAR PACING111LOCALLY PERSONALISED ATRIAL ELECTROPHYSIOLOGY MODELS FROM PENTARAY CATHETER MEASUREMENTS112EVALUATION OF SUBCUTANEOUS ICD VERSUS TRANSVENOUS ICD- A PROPENSITY MATCHED COST-EFFICACY ANALYSIS OF COMPLICATIONS & OUTCOMES113LOCALISING DRIVERS USING ORGANISATIONAL INDEX IN CONTACT MAPPING OF HUMAN PERSISTENT ATRIAL FIBRILLATION114RISK FACTORS FOR SUDDEN CARDIAC DEATH IN PAEDIATRIC HYPERTROPHIC CARDIOMYOPATHY: A SYSTEMATIC REVIEW AND META-ANALYSIS115EFFECT OF CATHETER STABILITY AND CONTACT FORCE ON VISITAG DENSITY DURING PULMONARY VEIN ISOLATION116HEPATIC CAPSULE ENHANCEMENT IS COMMONLY SEEN DURING MR-GUIDED ABLATION OF ATRIAL FLUTTER: A MECHANISTIC INSIGHT INTO PROCEDURAL PAIN117DOES HIGHER CONTACT FORCE IMPAIR LESION FORMATION AT THE CAVOTRICUSPID ISTHMUS? INSIGHTS FROM MR-GUIDED ABLATION OF ATRIAL FLUTTER118CLINICAL CHARACTERISATION OF A MALIGNANT SCN5A MUTATION IN CHILDHOOD119RADIOFREQUENCY ASSOCIATED VENTRICULAR FIBRILLATION120CONTRACTILE RESERVE EXPRESSED AS SYSTOLIC VELOCITY DOES NOT PREDICT RESPONSE TO CRT121DAY-CASE DEVICES - A RETROSPECTIVE STUDY USING PATIENT CODING DATA122PATIENTS UNDERGOING SVT ABLATION HAVE A HIGH INCIDENCE OF SECONDARY ARRHYTHMIA ON FOLLOW UP: IMPLICATIONS FOR PRE-PROCEDURE COUNSELLING123PROGNOSTIC ROLE OF HAEMOGLOBINN AND RED BLOOD CELL DITRIBUTION WIDTH IN PATIENTS WITH HEART FAILURE UNDERGOING CARDIAC RESYNCHRONIZATION THERAPY124REMOTE MONITORING AND FOLLOW UP DEVICES125A 20-YEAR, SINGLE-CENTRE EXPERIENCE OF IMPLANTABLE CARDIOVERTER DEFIBRILLATORS (ICD) IN CHILDREN: TIME TO CONSIDER THE SUBCUTANEOUS ICD?126EXPERIENCE OF MAGNETIC REASONANCE IMAGING (MEI) IN PATIENTS WITH MRI CONDITIONAL DEVICES127THE SINUS BRADYCARDIA SEEN IN ATHLETES IS NOT CAUSED BY ENHANCED VAGAL TONE BUT INSTEAD REFLECTS INTRINSIC CHANGES IN THE SINUS NODE REVEALED BY
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(F) BLOCKADE128SUCCESSFUL DAY-CASE PACEMAKER IMPLANTATION - AN EIGHT YEAR SINGLE-CENTRE EXPERIENCE129LEFT VENTRICULAR INDEX MASS ASSOCIATED WITH ESC HYPERTROPHIC CARDIOMYOPATHY RISK SCORE IN PATIENTS WITH ICDs: A TERTIARY CENTRE HCM REGISTRY130A DGH EXPERIENCE OF DAY-CASE CARDIAC PACEMAKER IMPLANTATION131IS PRE-PROCEDURAL FASTING A NECESSITY FOR SAFE PACEMAKER IMPLANTATION? Europace 2016. [DOI: 10.1093/europace/euw274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Martin C, Papageorgiou N, Srinivasan N, Luther V, Ang R, Saberwal B, Sawhney V, Martin C, Orini M, Srinivasan N, Bhar-Amato J, Chow A, Lowe M, Simon R, Lambiase P, Providência R, Srinivasan N, Bronis K, Moscoso Costa F, Cavaco D, Adragao P, Tousoulis D, Hunter R, Schilling R, Segal O, Chow A, Rowland E, Lowe M, Lambiase P, Orini M, Providencia R, Simon R, Khan F, Segal O, Ahsan S, Chow A, Lowe M, Schilling R, Taggart P, Lambiase P, Linton N, Jamil-Copley S, Koa-Wing M, Lim P, Qureshi N, Whinnett Z, Davies D, Peters N, Kanagaratnam P, Opel A, Ullah W, Baker V, Finlay M, Dhinoja M, Earley M, Sporton S, Hunter R, Schilling R, Roy A, Perera D, Sporton S, Dhinoja M, Segal O, Lambiase P, Lowe M, Chow A, Hunter R, Rowland E, Khan F, Ezzat V, Providencia R, Earley M, Finlay M, Schilling R, Ahsan S, Bacuetes EB, Wray MW, Dhinoja MD, Earley ME, Schilling RJS, Sporton SS, Curtain J, Gajendragadkar P, Begley D, Fynn S, Grace A, Heck P, Virdee M, Salaunkey K, Agarwal S. MODERATED POSTERS (2)51GLOBAL HIGH DENSITY MAPPING OF RE-ENTRY VULNERABILITY INDEX INDENTIFIES SITES OF RIGHT VENTRICULAR ARRHYTHMIA INITIATION IN BRUGADA SYNDROME AND ARVC52THE ROLE OF ADENOSINE-GUIDED PULMONARY VEIN ISOLATION IN PATIENTS UNDERGOING ATRIAL FIBRILLATION ABLATION:AN UPDATED META-ANALYSIS53FIRST EVIDENT THAT T-PEAK AND TPEAK-TEND CORRELATE WITH RIGHT TO LEFT AND TRANSMURAL DYNAMIC DISPERSION OF REPOLARIZATION IN THE INTACT HUMAN HEART54RIPPLE MAPPING VENTRICULAR SCAR TO CHARACTERIZE CHANNELS SUPPORTING RE-ENTRANT TACHYCARDIA AS A GUIDE TO ABLATION55LONG TERM DURABILITY OF PULMONARY VEIN ISOLATION: INSIGHTS FROM A RANDOMISED TRIAL OF CRYOBALLOON VERSUS RADIOFREQUENCY ABLATION FOR A COMBINED APPROACH56A SINGLE-CENTRE EXPERIENCE OF THE CONVERGENT PROCEDURE FOR THE TREATMENT OF LONG-STANDING PERSISTENT ATRIAL FIBRILLATION57MODERATE SEDATION IN THE CARDIAC ELECTROPHYSIOLOGY LABORATORY: A RETROSPECTIVE ANALYSIS TO ASSESS SAFETY58USE OF GENERAL ANAESTHESIA IN CATHETER ABLATION OF PERSISTENT AF: IMPROVED OUTCOME AND COST EFFECTIVENESS:. Europace 2016. [DOI: 10.1093/europace/euw269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kirikae T, Kirikae F, Tominaga K, Qureshi N, YamaMoto S, Nakano M. Rhodobacter sphaeroides diphosphoryl lipid A inhibits interleukin-6 production in CD14-negative murine marrow stromal ST2 cells stimulated with lipopolysaccharide or paclitaxel (taxol). ACTA ACUST UNITED AC 2016. [DOI: 10.1177/096805199700400205] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Paclitaxel (taxol), a microtubule stabilizer with anticancer activity, mimics the actions of lipopolysaccharide (LPS) on murine macrophages in vitro. Recent studies have shown that the Rhodobacter sphaeroides diphosphoryl lipid A (RsDPLA) inhibits both LPS- and paclitaxel-induced activation of murine macrophages, and have suggested that LPS, RsDPLA, and paclitaxel share the same receptor site on murine macrophages. To analyze this receptor site, the present study focused on the interactions between LPS, RsDPLA and paclitaxel in the activation of ST2 cells derived from murine bone marrow stroma. The ST2 cells did not express CD14 mRNA. The cells produced IL-6 molecules and expressed IL-6 mRNA in response to LPS, but did not produce TNF and nitric oxide. Paclitaxel induced IL-6 mRNA expression in ST2 cells. RsDPLA inhibited both LPS- and paclitaxel-induced IL-6 mRNA expression in a dose-dependent manner. These results suggest that LPS, RsDPLA, and paclitaxel are recognized by the same receptor complex on ST2 cells, and that the receptor functions without membrane CD14.
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Affiliation(s)
- T. Kirikae
- Department of Microbiology, Jichi Medical School, Minamikawachi-machi, Tochigi-ken, Japan
| | - F. Kirikae
- Department of Microbiology, Jichi Medical School, Minamikawachi-machi, Tochigi-ken, Japan
| | - K. Tominaga
- Department of Microbiology, Jichi Medical School, Minamikawachi-machi, Tochigi-ken, Japan
| | - N. Qureshi
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veteran's Hospital, Department of Bacteriology, College of Agricultural and Life Sciences, University of Wisconsin, Madison, Wisconsin, USA
| | - S. YamaMoto
- Department of Pathology, Oita Medical University, Oita, Japan
| | - M. Nakano
- Department of Microbiology, Jichi Medical School, Minamikawachi-machi, Tochigi-ken, Japan
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Qureshi N, Takayama K, Seydel U, Wang R, Cotter R, Agrawal P, Bush C, Kurtz R, Berman D. Structural analysis of the lipid A derived from the lipopolysaccharide of Brucella abortus. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/096805199400100303] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Lipopolysaccharide (LPS) of Brucella abortus strain 45/20 was purified using a novel method. Monophosphoryl lipid A (MPLA) was prepared from this LPS, methylated, and purified by high performance liquid chromatography. Chemical, mass spectral, and nuclear magnetic resonance analyses showed that MPLA consists of heptaacyl lipid As with molecular weights of 2095, 2123, 2151 and 2179. They contained the β-1,6-linked 2,3-diamino-2,3,-dideoxy-glucose disaccharide backbone and a phosphate group at the 4' position. Bisphosphoryl lipid A was also prepared and completely O-deacylated. It contained an additional phosphate group, and either 2 hydroxyhexadecanoic, 1 hydroxytetradecanoic, 1 hydroxydodecanoic acids or 2 hydroxyhexadecanoic and 2 hydroxydodecanoic acids, all in amide linkage. The predominant ester-linked fatty acyl group in acyloxyacyl linkage was hexadecanoate. The purified LPS, bisphosphoryl lipid A, and MPLA from B. abortus showed about 14%, 3% and 1%, respectively, of the B cell mitogen activity of ReLPS from Escherichia coli at 1.0 μg/ml.
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Affiliation(s)
- N. Qureshi
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - K. Takayama
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - U. Seydel
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - R. Wang
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - R.J. Cotter
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - P.K. Agrawal
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - C.A. Bush
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - R. Kurtz
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
| | - D.T. Berman
- Mycobacteriology Research Laboratory, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA, Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA, Forschungsinstitut Borstel, Borstel, Germany, Department of Pharmacology and Experimental Therapeutics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA, Department of Chemistry and Biochemistry, University of Maryland, Baltimore, MD, USA
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Heck P, Luther V, Luther V, Williams S, Schricker A, Zaman J, Ang R, Li X, Aziz S, Sugihara C, Grace A, Reddy V, Neuzil P, Linton N, Koa-Wing M, Lim P, Jamil-Copley S, Whinnett Z, Qureshi N, Ng F, Hayat S, Davies D, Peters N, Kanagaratnam P, Jamil-Copley S, Linton N, Koa-Wing M, Lim P, Hayat S, Ng F, Davies D, Peters N, Kanagaratnam P, Chubb H, Harrison J, Whitaker J, Cooklin M, Rinaldi C, Gill J, Wright M, Plank G, Niederer S, O'Neill M, Zaman J, Baykaner T, Lalani G, Hopper K, Moyeda A, Krummen D, Narayan S, Lalani G, Baykaner T, Swerdlow M, Park S, Krummen D, Wang P, Narayan S, Opel A, Ullah W, Baker V, Finlay M, Dhinoja M, Earley M, Sporton S, Schilling R, Hunter R, Chu G, Almeida T, Vanheusden F, Dastagir N, Salinet J, Stafford P, Schlindwein F, Ng G, Chubb H, Harrison J, Williams S, Whitaker J, Wright M, Schaeffter T, Razavi R, O'Neill M, Barlow N, Owens E, Sallomi D, Furniss S, Sulke N. Mapping & Ablation19Novel global ultrasound imaging and continuous dipole density mapping: initial findings in AF patients20Low voltage functional myocardium is critical in determining the substrate of post-ablation atrial tachycardia: results from a prospective study using ripple mapping distinguishing low-voltage scar from conducting tissue21Ripple mapping of post infarct ventricular scar to identify conduction channels and guide substrate based ablation22Effect of chamber geometry and activation pattern on optimal local activation time sampling density for tachycardia diagnosis25Clinical measures of good basket placement predict successful outcome from atrial fibrillation rotor ablation26Unipolar electrogram amplitude is reduced at rotor sites critical to focal termination of human persistent AF27Cryoballoon versus point by point radiofrequency ablation or a novel combined approach: long term follow up and comparison of patterns of pulmonary vein reconnection between different ablation strategies in a randomised controlled trial28Recurrent high dominant frequency patterns in persistent atrial fibrillation29Optimisation of late gadolinium enhanced (LGE) cmr imaging of atrial ablation scar30Hyperacute and chronic changes in cerebral magnetic resonance images after PVAC, NMARQ and epicardial thoracoscopic surgical ablation for paroxysmal atrial fibrillation. Europace 2015. [DOI: 10.1093/europace/euv326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abstract
In this paper, we propose an innovative, simple and inexpensive gas sensor based on the variation in the magnetic properties of nanoparticles due to their interaction with gases. To measure the nanoparticle response a magnetostatic spin wave (MSW) tunable oscillator has been developed using an yttrium iron garnet (YIG) epitaxial thin film as a delay line (DL). The sensor has been prepared by coating a uniform layer of CuFe2O4 nanoparticles on the YIG film. The unperturbed frequency of the oscillator is determined by a bias magnetic field, which is applied parallel to the YIG film and perpendicularly to the wave propagation direction. In this device, the total bias magnetic field is the superposition of the field of a permanent magnet and the field associated with the layer of magnetic nanoparticles. The perturbation produced in the magnetic properties of the nanoparticle layer due to its interaction with gases induces a frequency shift in the oscillator, allowing the detection of low concentrations of gases. In order to demonstrate the ability of the sensor to detect gases, it has been tested with organic volatile compounds (VOCs) which have harmful effects on human health, such as dimethylformamide, isopropanol and ethanol, or the aromatic hydrocarbons like benzene, toluene and xylene more commonly known by its abbreviation (BTX). All of these were detected with high sensitivity, short response time, and good reproducibility.
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Affiliation(s)
- D Matatagui
- Fotónica de Microondas, CCADET, Universidad Nacional Autónoma de México (UNAM), Mexico.
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Qureshi N, Friedl A, Maddox IS. Butanol production from concentrated lactose/whey permeate: Use of pervaporation membrane to recover and concentrate product. Appl Microbiol Biotechnol 2014; 98:9859-67. [DOI: 10.1007/s00253-014-6117-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 09/15/2014] [Accepted: 09/23/2014] [Indexed: 11/30/2022]
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Qureshi N, Singh V, Liu S, Ezeji TC, Saha BC, Cotta MA. Process integration for simultaneous saccharification, fermentation, and recovery (SSFR): production of butanol from corn stover using Clostridium beijerinckii P260. Bioresour Technol 2014; 154:222-8. [PMID: 24398150 DOI: 10.1016/j.biortech.2013.11.080] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 11/26/2013] [Accepted: 11/29/2013] [Indexed: 05/23/2023]
Abstract
A simultaneous saccharification, fermentation, and recovery (SSFR) process was developed for the production of acetone-butanol-ethanol (AB or ABE), of which butanol is the main product, from corn stover employing Clostridium beijerinckii P260. Of the 86 g L(-1) corn stover provided, over 97% of the sugars were released during hydrolysis and these were fermented completely with an ABE productivity of 0.34 g L(-1)h(-1) and yield of 0.39. This productivity is higher than 0.31 g L(-1)h(-1) when using glucose as a substrate demonstrating that AB could be produced efficiently from lignocellulosic biomass. Acetic acid that was released from the biomass during pretreatment and hydrolysis was also used by the culture to produce AB. An average rate of generation of sugars during corn stover hydrolysis was 0.98 g L(-1)h(-1). In this system AB was recovered using vacuum, and as a result of this (simultaneous product recovery), 100% sugars were used by the culture.
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Affiliation(s)
- N Qureshi
- United States Department of Agriculture (USDA), ARS, National Center for Agricultural Utilization Research (NCAUR), Bioenergy Research Unit, 1815 N University Street, Peoria, IL 61604, USA.
| | - V Singh
- University of Illinois, Department of Agricultural & Biological Engineering, 360G Agricultural Engineering Sciences Building, 1304 W. Pennsylvania Avenue, Urbana, IL 61801, USA
| | - S Liu
- USDA, ARS, NCAUR, Renewable Products Technology Unit, 1815 N University Street, Peoria, IL 61604, USA
| | - T C Ezeji
- The Ohio State University, Department of Animal Sciences, Ohio State Agricultural Research & Development Center (OARDC), 305 Gerlaugh Hall, 1680 Madison Avenue, Wooster, OH 44691, USA
| | - B C Saha
- United States Department of Agriculture (USDA), ARS, National Center for Agricultural Utilization Research (NCAUR), Bioenergy Research Unit, 1815 N University Street, Peoria, IL 61604, USA
| | - M A Cotta
- United States Department of Agriculture (USDA), ARS, National Center for Agricultural Utilization Research (NCAUR), Bioenergy Research Unit, 1815 N University Street, Peoria, IL 61604, USA
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Lee G, Hunter R, Lovell M, Finlay M, Sawhney V, Ullah W, Diab I, Dhinoja M, Earley M, Sporton S, Schilling RJ, Williams SE, Linton NWF, Harrison J, Wright M, O'Neill M, Jamil-Copley S, Linton N, Koa-Wing M, Lim PB, Hayat S, Qureshi N, Whinnett Z, Davies W, Peters N, Francis D, Kanagaratnam P, Jamil-Copley S, Ryan B, Kojodjojo P, Qureshi N, Koa-Wing M, Hayat S, Kyriacou A, Sandler B, Sohaib A, Wright I, Davies W, Peters N, Whinnett Z, Kanagaratnam P, Lim PB, Qureshi NA, Bai W, Ariff B, Williams A, Monro C, Kim S, Jamil-Copley S, Hayat S, Kao-Wing M, Kyriacou A, Sandler B, Fu NS, Kanagaratnam P, Whinnett Z, Davies DW, Lefroy D, Peters NS, Lim PB, Ryan MJ, Ezzat VA, O'Leary J, Bull C, Chow A, Lambiase P, Lowe MD, Anwar AS, Collitt S, Iddon P, Rice N, Dodd M, Dunsdale A, Petkar S, Mudd J, Linker N, Fitzpatrick AP, Fraser S, Choo WK, Padfield G, Rushworth G, Bloe C, Forsyth P, Cross SJ, Leslie SJ, Phan TT, Dewhurst M, Lee D, Williams D, James S, Thornley A, de Belder M, Linker N, Turley A, Campbell NG, Cantor E, Sawhney V, Duncan ER, Demartini C, Baker V, Diab IG, Dhinoja M, Earley MJ, Sporton S, Davies LC, Schilling RJ, Pettit SJ, Randles DA, Shaw M, Hawkins NM, Wright DJ, Lambiase PD, Barr C, Knops R, Neuzil P, Theuns D, Johansen JB, Hood M, Pederson S, Reeve HL, Boersma L. ABSTRACTS FOR ORAL PRESENTATION, SESSION 3, HRC 2013. Europace 2013. [DOI: 10.1093/europace/eut316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fabritz L, Fortmuller L, Vloumidi E, Yue TY, Syeda F, Kirchhof P, Leube R, Krusche C, Chin SH, Winter J, Brack KE, Ng GA, Ng FS, Holzem KM, Koppel AC, Janks D, Wit AL, Peters NS, Efimov IR, Chowdhury RA, El-Harasis MA, Dupont E, Terracciano CMN, Peters NS, Mellor GJ, Raju H, de Noronha SV, Papadakis M, Sharma S, Behr ER, Sheppard MN, Jamil-Copley S, Bai W, Ariff B, Lim PB, Koa-Wing M, Kyriacou A, Hayat S, Sohaib A, Qureshi N, Sandler B, O'Regan D, Whinnett Z, Davies W, Rueckert D, Kanagaratnam P, Peters N, Lambiase PD, Chow AW, Lowe MD, Segal OR, Ahsan S, de Bono J, Dhaliwal M, Mfuko C, Ng A, Sandilands A, Paisey J, Roberts P, Morgan JM, McCready J, Yue A, Ullah W, Hunter R, Lovell M, Dhinoja M, Sporton S, Earley M, Schilling R, Ghosh J, Martin A, Keech A, Chan KH, Gomes S, Singarayar S, McGuire M, Lee G, Hunter R, Berriman T, Diab I, Kamdar R, Richmond L, Baker V, Goromonzi F, Sawhney V, Duncan E, Unsworth B, Mayet J, Abrams D, Dhinoja M, Sporton S, Earley M, Schilling RJ, Bowers RW, Mulholland V, Balasubramaniam RN, Paisey JR, Sopher SM, Chu GS, Chin SH, Winter J, Armstrong S, Masca N, Almeida TP, Brown PD, Sandilands AJ, Schlindwein FS, Ng GA. ABSTRACTS FOR ORAL PRESENTATION, SESSION 2, HRC 2013. Europace 2013. [DOI: 10.1093/europace/eut315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lee CH, Steffens P, Qureshi N, Nakajima M, Kihou K, Iyo A, Eisaki H, Braden M. Universality of the dispersive spin-resonance mode in superconducting BaFe2As2. Phys Rev Lett 2013; 111:167002. [PMID: 24182293 DOI: 10.1103/physrevlett.111.167002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 09/09/2013] [Indexed: 06/02/2023]
Abstract
Spin fluctuations in superconducting BaFe2(As(1-x)P(x))2 (x=0.34, T(c)=29.5 K) are studied using inelastic neutron scattering. Well-defined commensurate magnetic signals are observed at (π, 0), which is consistent with the nesting vector of the Fermi surface. Antiferromagnetic (AFM) spin fluctuations in the normal state exhibit a three-dimensional character reminiscent of the AFM order in nondoped BaFe2As2. A clear spin gap is observed in the superconducting phase forming a peak whose energy is significantly dispersed along the c axis. The bandwidth of dispersion becomes larger with approaching the AFM ordered phase universally in all superconducting BaFe2As2, indicating that the dispersive feature is attributed to three-dimensional AFM correlations. The results suggest a strong relationship between the magnetism and superconductivity.
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Affiliation(s)
- C H Lee
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan and Transformative Research-Project on Iron Pnictides (TRIP), JST, Chiyoda, Tokyo 102-0075, Japan
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