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Article ; Online: The changing profile of SARS-CoV-2 serology in Irish blood donors.

Coyne, Dermot / Butler, Dearbhla / Meehan, Adrienne / Keogh, Evan / Williams, Pádraig / Carterson, Alex / Hervig, Tor / O'Flaherty, Niamh / Waters, Allison

Global epidemiology

2023 Volume 5, Page(s) 100108

Abstract: Background: The present study aimed to investigate the progression of the SARS-CoV-2 pandemic in Ireland over the first three waves of infection.: Method: A selection of blood donor serum samples collected between February 2020 and December 2021 were ...

Abstract	Background: The present study aimed to investigate the progression of the SARS-CoV-2 pandemic in Ireland over the first three waves of infection. Method: A selection of blood donor serum samples collected between February 2020 and December 2021 were analysed by various commercially available serological assays for antibodies to SARS-CoV-2 ( Results: An increase in seropositivity was observed between wave 1 (February to September 2020) and wave 2 (November and December 2020) of 2.20% to 3.55%. A large increase in estimated seroprevalence to 11.89% was observed in samples collected in February and March 2021 (wave 3 of infection).The rate of seropositivity varied by age group, with the highest rate observed in the youngest donors (18-29 years) peaking at 18.79% in wave 3. The results of spike antibody (anti-S) testing indicated that 44/1009 (4.36%) of seroreactive donors in wave 3 had a serological profile consistent with vaccination. By November 2021, we detected an overall seropositivity of 97.04%. Conclusions: The present study provides a comprehensive estimation of the level of circulating SARS-CoV-2 antibodies in Irish blood donors, enabling differentiation between vaccination and natural infection, as well as real-time monitoring of the progression of the COVID-19 pandemic in Ireland. Seroepidemiology has a role in determining reliable estimates of transmission, infection fatality rates and vaccine uptake. The continued screening of blood donors for this purpose has the potential to generate important data to assist with the management of future waves of SARS-CoV-2.
Language	English
Publishing date	2023-04-21
Publishing country	United States
Document type	Journal Article
ISSN	2590-1133
ISSN (online)	2590-1133
DOI	10.1016/j.gloepi.2023.100108
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Article: Isolates of Uromyces appendiculatus with Specific Virulence to Landraces of Phaseolus vulgaris of Andean Origin.

Sandlin, Craig M / Steadman, James R / Araya, Carlos M / Coyne, Dermot P

Plant disease

2019 Volume 83, Issue 2, Page(s) 108–113

Abstract: Five isolates of the bean rust fungus Uromyces appendiculatus were shown to be specifically virulent on bean genotypes of Andean origin. This specificity was demonstrated by the virulence of five pairs of isolates on a differential set of 30 Phaseolus ... ...

Abstract	Five isolates of the bean rust fungus Uromyces appendiculatus were shown to be specifically virulent on bean genotypes of Andean origin. This specificity was demonstrated by the virulence of five pairs of isolates on a differential set of 30 Phaseolus vulgaris landraces. Each isolate pair was from a different country in the Americas and consisted of one Andean-specific isolate and one nonspecific isolate. Of the differential P. vulgaris landraces, 15 were of Middle American origin and 15 were of Andean origin. The Andean-specific rust isolates were highly virulent on Andean landraces but not on landraces of Middle American origin. Rust isolates with virulence to Middle American landraces were also generally virulent on Andean material; no truly Middle American-specific isolates were found. Random amplified polymorphic DNA (RAPD) analysis of the rust isolates also distinguished the two groups. Four of the Andean-specific rust isolates formed a distinct group compared to four of the nonspecific isolates. Two of the isolates, one from each of the two virulence groups, had intermediate RAPD banding patterns, suggesting that plasmagomy but not karyogamy occurred between isolates of the two groups.
Language	English
Publishing date	2019-03-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	754182-x
ISSN	0191-2917
ISSN	0191-2917
DOI	10.1094/PDIS.1999.83.2.108
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Article ; Online: Confirmed circulation of SARS-CoV-2 in Irish blood donors prior to first national notification of infection.

Butler, Dearbhla / Coyne, Dermot / Pomeroy, Louise / Williams, Pádraig / Holder, Paul / Carterson, Alex / Field, Stephen / Waters, Allison / O'Flaherty, Niamh

Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology

2021 Volume 146, Page(s) 105045

Abstract: Introduction: Blood donor studies offer a unique opportunity to screen healthy populations for the presence of antibodies to emerging infections. We describe the use of blood donor specimens to track the 'first-wave' of the COVID-19 pandemic in Ireland.! ...

Abstract	Introduction: Blood donor studies offer a unique opportunity to screen healthy populations for the presence of antibodies to emerging infections. We describe the use of blood donor specimens to track the 'first-wave' of the COVID-19 pandemic in Ireland. Methodology: A random selection of donor samples received by the Irish Blood Transfusion Service (IBTS) between February and September 2020 (n = 8,509) were screened by multiple commercial SARs-CoV-2 antibody assays. The antibody detection rate was adjusted to the population to determine the SARS-CoV-2 seroprevalence in Ireland. Results: SARS-CoV-2 antibody detection rose significantly during the first peak of COVID-19 infection, increasing from 0.3% in March, to 2.9% in April (p < 0.0001, The first SARS-CoV-2 antibody positive donor samples were collected on the 17th February 2020, 2 weeks prior to the first official notification. This is the earliest serological evidence of SARS-CoV-2 circulating in the Irish population. Our results also show a significantly higher antibody prevalence in the Capital city and in donors less than 40 years of age. Conclusions: The present study demonstrates evidence of SARS-CoV-2 antibody reactivity across all age groups and counties. The critical value of blood donor seroprevalence studies is apparent in this report which identified the earliest serological evidence of SARS-CoV-2 infection in Ireland, as well as documenting the evolution of COVID-19 pandemic in Ireland over time.
MeSH term(s)	Antibodies, Viral ; Blood Donors ; COVID-19 ; Humans ; Pandemics ; SARS-CoV-2 ; Seroepidemiologic Studies
Chemical Substances	Antibodies, Viral
Language	English
Publishing date	2021-11-25
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1446080-4
ISSN	1873-5967 ; 1386-6532
ISSN (online)	1873-5967
ISSN	1386-6532
DOI	10.1016/j.jcv.2021.105045
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Article ; Online: Seroprevalence of human herpesvirus 8 in Ireland among blood donors, men who have sex with men, and heterosexual genitourinary medicine and infectious diseases clinic attendees.

O'Rourke, Sadhbh / O'Flaherty, Niamh / Coyne, Dermot / Lynam, Almida / Clarke, Susan / O'Dea, Siobhán / Fitzpatrick, Sarah / Connell, Jeff / Crowley, Brendan

Journal of medical virology

2021 Volume 93, Issue 8, Page(s) 5058–5064

Abstract: Human herpesvirus 8 (HHV-8) seroprevalence varies geographically and between subpopulations. High seroprevalence rates have been ascribed to men who have sex with men (MSM), African migrants, and HIV-infected individuals. The objective of this study was ... ...

Abstract	Human herpesvirus 8 (HHV-8) seroprevalence varies geographically and between subpopulations. High seroprevalence rates have been ascribed to men who have sex with men (MSM), African migrants, and HIV-infected individuals. The objective of this study was to determine the seroprevalence of HHV-8 in an Irish population, including specific risk groups. A cross-sectional study of 200 blood donors and 200 genitourinary medicine (GUM) and infectious diseases (ID) clinic patients was performed, with testing for Immunoglobulin G (IgG) antibodies to HHV-8 lytic antigens using a commercial indirect fluorescence assay (Scimedx Corp.). Verification was performed at the Centers for Disease Control and Prevention (CDC). All 200 blood donor samples were negative for HHV-8 IgG antibodies. 21% of GUM and ID patients were positive for HHV-8 IgG antibodies. One hundred of these patients were MSM, 35% of whom were HHV-8 seropositive (46% of HIV-positive MSM and 24% of HIV-negative MSM). Of 100 heterosexual patients, only 7% were HHV-8 seropositive. The absence of seropositivity in 200 Irish blood donors may suggest that Ireland has a low overall population HHV-8 seroprevalence. The proportion of HHV-8 seropositivity in the MSM population was significantly higher than in the heterosexual population and most marked in HIV-positive MSM.
MeSH term(s)	Adult ; Aged ; Antibodies, Viral/blood ; Antibodies, Viral/immunology ; Basic-Leucine Zipper Transcription Factors/immunology ; Blood Donors/statistics & numerical data ; Communicable Diseases/blood ; Communicable Diseases/epidemiology ; Cross-Sectional Studies ; Female ; HIV Seropositivity/blood ; HIV Seropositivity/epidemiology ; Herpesviridae Infections/blood ; Herpesviridae Infections/epidemiology ; Herpesvirus 8, Human/immunology ; Herpesvirus 8, Human/isolation & purification ; Heterosexuality/statistics & numerical data ; Homosexuality, Male/statistics & numerical data ; Humans ; Ireland/epidemiology ; Male ; Middle Aged ; Repressor Proteins/immunology ; Seroepidemiologic Studies ; Viral Proteins/immunology ; Young Adult
Chemical Substances	Antibodies, Viral ; Basic-Leucine Zipper Transcription Factors ; K8 protein, Human herpesvirus 8 ; Repressor Proteins ; Viral Proteins
Language	English
Publishing date	2021-03-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	752392-0
ISSN	1096-9071 ; 0146-6615
ISSN (online)	1096-9071
ISSN	0146-6615
DOI	10.1002/jmv.26813
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Article ; Online: Influence of Phaseolus vulgaris blossoming characteristics and canopy structure upon reaction to Sclerotinia sclerotiorum

Schwartz, Howard F. / Steadman, James R. / Coyne, Dermot P.

Phytopathology

2014

Abstract: Bean (Phaseolus vulgaris) lines or cultivars with indeterminate growth habit produced more blossoms, and had more colonized senescent blossoms than did those with determinate growth habits, but senescent blossoms accumulated within and around both types; ...

Abstract	Bean (Phaseolus vulgaris) lines or cultivars with indeterminate growth habit produced more blossoms, and had more colonized senescent blossoms than did those with determinate growth habits, but senescent blossoms accumulated within and around both types; thus, many potential sites for colonization by Sclerotinia sclerotiorum were present in both. However, disease severity was not always correlated with frequency of colonizable sites. The structure of a dry edible bean canopy affected white mold disease incidence and severity. The most susceptible entries produced a canopy that was significantly more dense in terms of leaf area × dry weight/height than was that of resistant types. The growth habit of the plant; i.e., determinate or indeterminate, did not exclusively influence the incidence of infection. The more critical determinant of disease severity was conferred by the distribution of the leaf area, especially near the ground. Bean germplasm can be screened in the greenhouse for reaction to S. sclerotiorum if suitable methodology is utilized.
Keywords	phaseolus vulgaris ; whetzelinia sclerotiorum ; plant habit ; canopy ; leaf area ; stems ; leaves ; pods ; flowering
Language	English
Publishing date	2014-09-24T08:42:20Z
Publisher	Scientific Societies
Publishing country	fr
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Development of SCAR markers linked to common bacterial blight resistance genes (QTL) in common bean

Jung, Geunhwua / Beebe, Stephen E. / Nienhuis, James / Park, Sung-Jo / Coyne, Dermot P. / Marita, J. / Pedraza García, Fabio / Tohme, Joseph M.

2017

Keywords	phaseolus vulgaris ; xanthomonas campestris ; genetic markers ; genetic resistance ; inbred lines ; marcadores genéticos ; resistencia genética ; líneas consanguíneas
Language	English
Publishing date	2017-10-12T08:04:25Z
Publishing country	fr
Document type	Article ; Online
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Article ; Online: Progress reported at the 2nd International Bean Rust Workshop

Steadman, James R. / Beaver, James S. / Boudreau, M. / Coyne, Dermot P. / Groth, James V. / Kelly, J. / McMillan, Mark S. / McMillan, Robert T. / Miklas, P.N. / Pastor Corrales, Marcial A. / Schwartz, Howard F. / Stavely, J.R.

2017

Keywords	phaseolus vulgaris ; rusts ; uromyces ; breeding methods ; disease control ; roya ; métodos de mejoramiento ; control de enfermedades
Language	English
Publishing date	2017-10-12T08:04:13Z
Publishing country	fr
Document type	Article ; Online
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Article: Mapping of the Ur-7 Gene for Specific Resistance to Rust in Common Bean

Park, Soon O / Coyne, Dermot P / Skroch, Paul W / Steadman, James R

Crop science. 2003 July, v. 43, no. 4

2003

Abstract: Bean rust, caused by Uromyces appendiculatus (Pers.: Pers.) Unger, is a major disease of common bean (Phaseolus vulgaris L.). A recommended strategy to obtain durable rust resistance is to use molecular markers linked to rust resistance genes for ... ...

Abstract	Bean rust, caused by Uromyces appendiculatus (Pers.: Pers.) Unger, is a major disease of common bean (Phaseolus vulgaris L.). A recommended strategy to obtain durable rust resistance is to use molecular markers linked to rust resistance genes for pyramiding monogenic resistance genes into a single bean cultivar. However, markers linked to the Ur-7 gene for specific resistance (SR) to rust present in the cultivar Great Northern (GN) 1140 have not been reported. Our objectives were to identify random amplified polymorphic DNA (RAPD) markers linked to the Ur-7 gene for SR to rust race 59 using bulked segregant analysis in an F2 population from the Middle American (MA) common bean cross ‘GN1140’ (resistant) × GN Nebr. #1 (susceptible) and to map the Ur-7 gene on an existing RAPD marker-based linkage map constructed by means of recombinant inbred lines (RILs) from the MA cross GN BelNeb-RR-1 × A 55. A single dominant gene controlling SR to race 59 was found in the F2 and confirmed in the F3 Six RAPD markers were detected in a coupling phase linkage with the Ur-7 gene. Cosegregating coupling-phase markers OAD12.550 and OAF17.900 were found. These were also present in pinto US-5 from which the rust resistance of GN1140 was derived. Among the three repulsion-phase markers, marker OAB18.650 was the most closely linked to the Ur-7 gene at a distance of 7.6 centimorgans (cM). All linked markers detected in the F2 population also segregated in the RILs and were located on linkage group 11 of the existing linkage map. These markers linked to the Ur-7 gene of MA origin identified here, along with other independent rust resistance genes from other germplasm, could be utilized to pyramid multiple genes into a bean cultivar for more durable rust resistance.
Keywords	bean rust ; beans ; chromosome mapping ; cultivars ; dominant genes ; genetic markers ; germplasm ; inbred lines ; linkage groups ; Phaseolus vulgaris ; random amplified polymorphic DNA technique ; resistance genes ; Uromyces appendiculatus
Language	English
Dates of publication	2003-07
Size	p. 1470-1476.
Publishing place	Crop Science Society of America
Document type	Article
Note	epub
ZDB-ID	410209-5
ISSN	0011-183X
ISSN	0011-183X
DOI	10.2135/cropsci2003.1470
Database	NAL-Catalogue (AGRICOLA)

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Book: Growing dry edible beans in Nebraska

Coyne, Dermot P

(SB / University of Nebraska-Lincoln. Agricultural Experiment Station ; 527)

1973

Author's details	[D.P. Coyne ... et al.]
Series title	SB / University of Nebraska-Lincoln. Agricultural Experiment Station ; 527
Keywords	Beans
Language	English
Size	39 p. :, ill. ;, 22 cm.
Publisher	University of Nebraska-Lincoln, College of Agriculture, Agricultural Experiment Station
Publishing place	Lincoln
Document type	Book
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Article: Mapping of QTL for Resistance to White Mold Disease in Common Bean

Park, Soon O / Coyne, Dermot P / Steadman, James R / Skroch, Paul W

Crop science. 2001 July, v. 41, no. 4

2001

Abstract: White mold (WM), incited by Sclerotinia sclerotiorum (Lib.) de Bary, is a serious disease of common bean (Phaseolus vulgaris L.). However, plant breeders have had very limited success in developing resistant (R) cultivars. Molecular markers linked to ... ...

Abstract	White mold (WM), incited by Sclerotinia sclerotiorum (Lib.) de Bary, is a serious disease of common bean (Phaseolus vulgaris L.). However, plant breeders have had very limited success in developing resistant (R) cultivars. Molecular markers linked to genes for R to WM may improve selection for R. The objective was to identify random amplified polymorphic DNA (RAPD) markers linked to quantitative trait loci (QTL) for partial physiological resistance (PPR), partial field resistance (PFR), porosity over the furrow (POF), and plant height (PH) in a linkage map by means of recombinant inbred lines (RILs) from the cross ‘PC-50’ (R) × XAN-159 (susceptible). The parents and RILs were inoculated in two separate greenhouse experiments for each isolate and were also infected naturally in the field. Significant correlations (0.39, 0.47) were found for the WM reactions in the greenhouse and field. Nine candidate QTL were found affecting PPR isolate 152 (comparison-wise P < 0.05) with strong evidence (genome-wise P < 0.01) for three QTL on linkage groups (LGs) 4, 7, and 8, based on composite interval mapping analysis. Candidate QTL affecting PPR to isolate 279 were found on LGs 2, 3, 4, 7, and 8 with very strong evidence (genome-wise P < 0.001) for a QTL linked to the C locus for seedcoat pattern. Seven candidate QTL for PFR were observed on LGs 4, 7, 8, and 11. Six of the seven candidate QTL for PFR were found in the same locations as QTL for PPR. However, two of the seven genomic regions were associated with PFR and POF that may contribute to disease avoidance.
Keywords	Phaseolus vulgaris ; Sclerotinia sclerotiorum ; beans ; chromosome mapping ; furrows ; genes ; genetic markers ; genomics ; greenhouse experimentation ; greenhouses ; inbred lines ; linkage groups ; loci ; molds (fungi) ; parents ; plant breeders ; plant height ; porosity ; quantitative trait loci ; random amplified polymorphic DNA technique ; seed coat
Language	English
Dates of publication	2001-07
Size	p. 1253-1262.
Publishing place	Crop Science Society of America
Document type	Article
Note	epub
ZDB-ID	410209-5
ISSN	0011-183X
ISSN	0011-183X
DOI	10.2135/cropsci2001.4141253x
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