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Beltrame MO, Moviglia GS, De Tommaso D, Quintana S. Gastrointestinal parasites of domestic sheep from Patagonia throughout historical times: A paleoparasitological approach. Vet Parasitol Reg Stud Reports 2023; 44:100915. [PMID: 37652634 DOI: 10.1016/j.vprsr.2023.100915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 07/19/2023] [Accepted: 07/25/2023] [Indexed: 09/02/2023]
Abstract
Sheep husbandry in Patagonia, Argentina, started at the beginning of the 20th century from European settlers. Sanitary management is minimal, which has serious implications for the sheep health. Sheep can be infested by diverse parasites, with well over 150 species of internal and external parasites reported worldwide. Gastrointestinal parasitism is one of the most common and important infections in sheep concerning the health status, and is the cause of significant morbidity and mortality, which generates considerable production losses. The present work is the first paleoparasitological study of sheep coprolites from Patagonia throughout historical times. Fifty-seven coprolites from the 'Cueva Peligro' archaeological site (Patagonia, Argentina) were analyzed using the Lutz spontaneous sedimentation technique and the modified Faust flotation technique. Ancient DNA (aDNA) study was carried out in order to identify the zoological origin of coprolites. The results obtained from Cytb analysis confirmed the identity of the host as Ovis aries (domestic sheep). A total of 39 coprolites examined were positive for parasites by at least one of the studied methods. Thirty eight samples were positive by spontaneous sedimentation and 10 samples were positive by the modified Faust technique. The parasitic fauna found was Trichuris sp. (Trichinellida: Trichuridae), Nematodirus sp., Nematodirus spathiger (Strongylida, Trichostrongyloidea), two unidentified Strongylida-type egg morphotypes, Fasciola hepatica (Trematoda: Digenea) and coccidia oocysts of Eimeria spp. (Apicomplexa: Eimeriidae). The modified Faust technique provided satisfactory results in terms of sensitivity for the detection of Eimeria spp. The use of this methodology as a routine procedure enables the processing of ancient samples, in order to increase recoveries. These results show the importance of integrating different diagnostic approaches in order to optimize parasitic findings. The recorded parasite diversity appears to have not changed over the last 120 years. The study displayed the presence of different parasitic species which suggests potential exposure to parasitic diseases through the historical times, both for sheep and for other domestic and wild mammals from Patagonia. Also, suggests the presence of fasciolosis, a zoonotic disease that implies a potential risk for Patagonian populations in the past.
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Affiliation(s)
- María Ornela Beltrame
- Instituto de Investigaciones en Producción, Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Buenos Aires, Argentina.
| | - Gloria Sofía Moviglia
- Instituto de Investigaciones en Producción, Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Daniela De Tommaso
- Grupo de Investigación en Gestión, Desarrollo Territorial y Ambiente (GesDTA), Facultad Regional Chubut, Universidad Tecnológica Nacional (FRCh-UTN)
| | - Silvina Quintana
- Instituto de Investigaciones en Producción, Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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Mesozoic origin of coleoid cephalopods and their abrupt shifts of diversification patterns. Mol Phylogenet Evol 2021; 166:107331. [PMID: 34687843 DOI: 10.1016/j.ympev.2021.107331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/25/2021] [Accepted: 10/18/2021] [Indexed: 11/22/2022]
Abstract
Coleoids are the most diverse group of cephalopod mollusks. While their origin is date during the Mesozoic, the diversification pattern is unknown. However, two hypotheses have been proposed. The first suggests an increasing diversification rate after the Cretaceous-Paleogene extinction event (K-Pg) as consequence of empty habitats left by the ammonites and belemnites. The second hypothesis proposes a mid-Cenozoic increase in diversification rate related to distributional changes during ice ages and biotic interactions. To test these hypotheses, we estimated a lineage through time (LTT) and the gamma-statistic along with model-based diversification rates. These analyses were conducted on a dated molecular phylogeny for coleoids that we reconstructed using five molecular markers (cytochrome b, 16S rRNA, cytochrome oxidase I, rhodopsin, and PAX-6). Our divergence time estimation suggests that coleoids originated in the Mesozoic Era (Middle Triassic) and that both main clades (Decapodiformes and Octopodiformes) diverged in the Cretaceous/Jurassic Period. The LTT, gamma statistic, and diversification rates inferred with the Bayesian Analysis of Macro-evolutionary Mixtures (BAMM), indicate an acceleration in diversification rate over time since the origin of coleoids. Additionally, BAMM allowed us to detect abrupt increases in diversification rate before and after the K-Pg boundary. Our results partially support both hypotheses as all analyses indicate that the coleoid diversification rate was increasing during the Cenozoic. However, our results also indicate increasing diversification rates before the K-Pg boundary. We propose that the radiation of coleoids has been shaped by an acceleration in diversification rate over time, including exceptional episodes of abrupt increases before and after the K-Pg boundary.
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Cheuquepán Valenzuela F, Recavarren M, Quintana S, Cantón G, Odeón A, Marin M, Morrell E. Improvement of Leptospira spp. diagnosis in aborted bovine fetuses by qPCR. Comp Immunol Microbiol Infect Dis 2020; 73:101555. [PMID: 33032190 DOI: 10.1016/j.cimid.2020.101555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/31/2020] [Accepted: 09/16/2020] [Indexed: 10/23/2022]
Abstract
Leptospirosis is a disease with major economic impact on livestock industry. The objective of this work was to determine the presence of Leptospira spp. DNA by qPCR in bovine fetuses with presumptive diagnosis of leptospirosis as the cause of abortion. Leptospira spp. DNA was detected by qPCR in 11 out of 34 fetuses. These specimens (10/11) had histopathological findings in hepatic and/or renal tissues compatible with leptospirosis. qPCR detection rate (32.4 %) was higher compared with direct immuno-fluorescence antibody test (DFAT) (11.8 %). The concordance coefficient between both techniques was 0.44. qPCR is a rapid and sensitive technique for the diagnosis of leptospirosis and improved the detection rate in fetal tissues compared with DFAT. Implementation of molecular techniques may increase the accurate detection of leptospirosis as a cause of bovine abortion allowing the application of rapid therapeutic and prophylactics measures in order to reduce the impact of this zoonotic disease.
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Affiliation(s)
- Felipe Cheuquepán Valenzuela
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), CONICET - INTA, Ruta 226 Km 73.5, (7620), Balcarce, Buenos Aires, Argentina
| | - Mariana Recavarren
- Instituto de Análisis Fares Taie, Rivadavia 3331, (7600), Mar del Plata, Buenos Aires, Argentina
| | - Silvina Quintana
- Instituto de Análisis Fares Taie, Rivadavia 3331, (7600), Mar del Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rivadavia 1917, C1033AAJ, Buenos Aires, Argentina; Centro de Investigación en Abejas Sociales, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, UNMDP, Funes, 3350, (7600), Mar del Plata, Buenos Aires, Argentina
| | - Germán Cantón
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, (7620), Balcarce, Buenos Aires, Argentina
| | - Anselmo Odeón
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Ruta 226 Km 73.5, (7620), Balcarce, Buenos Aires, Argentina
| | - Maia Marin
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), CONICET - INTA, Ruta 226 Km 73.5, (7620), Balcarce, Buenos Aires, Argentina.
| | - Eleonora Morrell
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, (7620), Balcarce, Buenos Aires, Argentina
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Shehata HR, Naaum AM, Chen S, Murphy T, Li J, Shannon K, Awmack D, Locas A, Hanner RH. Re-visiting the occurrence of undeclared species in sausage products sold in Canada. Food Res Int 2019; 122:593-598. [PMID: 31229118 DOI: 10.1016/j.foodres.2019.01.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 01/11/2019] [Accepted: 01/13/2019] [Indexed: 11/16/2022]
Abstract
Meat and poultry are major protein sources for humans worldwide. Undeclared ingredients in processed meat products, like sausage, continue to be identified in retail products all over the world. In collaboration with the Canadian Food Inspection Agency, a previous study of products purchased in Canada showed 20% mislabelling rate in sausage meats when tested for beef, pork, chicken, turkey and horse using DNA barcoding and digital PCR. In a follow-up to this study, an additional 100 "single species" sausage products were collected from Canadian retail markets, one year after our earlier study, to determine the prevalence of undeclared meat species in sausage. A new hierarchy of complementary molecular methods was applied in this study, including the testing of new target species (sheep and goat), in addition to beef, pork, chicken, turkey and horse. First, all samples were tested using DNA barcoding using universal primers, which revealed that 97% of the samples contained the declared species, presumably as the predominant species. Second, all samples were tested using ddPCR assays specifically targeting beef, pork, chicken, and turkey, which revealed that five beef samples, three chicken samples and two turkey samples contained undeclared species. Additionally, ddPCR revealed the presence of undeclared sheep in five samples. Overall, using complementary molecular methods, 14% of the samples contained additional undeclared species. It was encouraging to find a reduced rate of mislabelling compared to the previous study, though it remains clear that meat mislabelling is still an issue affecting Canadian consumers. The results from this study can be used to support decision-making processes for future inspection and monitoring activities in order to control species substitution or adulteration to protect consumers.
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Affiliation(s)
- Hanan R Shehata
- Department of Integrative Biology, University of Guelph, ON, Canada; Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada
| | - Amanda M Naaum
- Department of Integrative Biology, University of Guelph, ON, Canada; Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada
| | - Shu Chen
- Laboratory Services Division, University of Guelph, Guelph, ON, Canada
| | - Torie Murphy
- Department of Integrative Biology, University of Guelph, ON, Canada; Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada
| | - Jiping Li
- Laboratory Services Division, University of Guelph, Guelph, ON, Canada
| | - Kelly Shannon
- Laboratory Services Division, University of Guelph, Guelph, ON, Canada
| | - David Awmack
- Canadian Food Inspection Agency Food Safety Science Directorate, Science Branch, Ottawa, ON, Canada
| | - Annie Locas
- Canadian Food Inspection Agency Food Safety Science Directorate, Science Branch, Ottawa, ON, Canada
| | - Robert H Hanner
- Department of Integrative Biology, University of Guelph, ON, Canada; Biodiversity Institute of Ontario, University of Guelph, Guelph, ON, Canada.
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PCR-RFLP for authentication of different species of processed snappers using mitochondrial D-loop region by single enzyme. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.02.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rensetti D, Marin M, Quintana S, Morán P, Verna A, Odeón A, Pérez S. Involvement of toll-like receptors 3 and 7/8 in the neuropathogenesis of bovine herpesvirus types 1 and 5. Res Vet Sci 2016; 107:1-7. [DOI: 10.1016/j.rvsc.2016.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 04/08/2016] [Accepted: 04/29/2016] [Indexed: 01/22/2023]
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7
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Espiñeira M, Vieites JM. FAST Real Time PCR for control of intra-species recycling in aquaculture feed, focused to the most relevant fish species farmed in Europe. Food Chem 2016; 204:352-357. [DOI: 10.1016/j.foodchem.2016.02.114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 09/10/2015] [Accepted: 02/01/2016] [Indexed: 10/22/2022]
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8
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Namavari M, Ezhdehakosh-Pour S, Habibi GR, Rahimian A, Namazi F. First isolation and establishment of in vitro culture of Theileria lestoquardi from a naturally infected cow. J Parasit Dis 2015; 39:328-31. [PMID: 26064029 DOI: 10.1007/s12639-013-0309-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 05/05/2013] [Indexed: 10/26/2022] Open
Abstract
Theileria infected cell line was isolated from the prescapular lymph node of an adult crossbred cow. Molecular study confirmed this cell line of bovine lymphocyte has been transformed by the Theileria lestoquardi. This strain of T. lestoquardi designated Ka-6 and sheep were inoculated with this strain didn't show any clinical signs of theileriosis which shows the significance of this cell line to develop a tissue-culture vaccine against malignant ovine theileriosis. Contrary to accepted belief that the T. lestoquardi not capable of causing disease in cattle, the present study describes the first isolation and establishment of in vitro culture of T. lestoquardi-infected cell line from a naturally infected cow with typical singes of acute theileriosis.
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Affiliation(s)
- M Namavari
- Razi Vaccine and Serum Research Institute, Shiraz, Iran
| | | | - G R Habibi
- Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - A Rahimian
- Razi Vaccine and Serum Research Institute, Shiraz, Iran
| | - F Namazi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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9
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Dalia Z, Sanaa H. Use of molecular biology techniques in the detection of fraud meat in the Egyptian market. ACTA ACUST UNITED AC 2015. [DOI: 10.5897/ajb2014.14297] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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10
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Santaclara FJ, Velasco A, Pérez-Martín RI, Quinteiro J, Rey-Méndez M, Pardo MA, Jimenez E, Sotelo CG. Development of a multiplex PCR-ELISA method for the genetic authentication of Thunnus species and Katsuwonus pelamis in food products. Food Chem 2014; 180:9-16. [PMID: 25766795 DOI: 10.1016/j.foodchem.2014.11.076] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 03/24/2014] [Accepted: 11/12/2014] [Indexed: 10/24/2022]
Abstract
In the present work a PCR-ELISA technique for the authentication of Thunnus species was developed. This method is composed by four systems that can be used in a hierarchical way allowing the identification of several scombroids species; or each individual system independently. The hierarchical strategy, proposes a first step, to assign one sample to the Thunnus genus. Next, if the result is positive, several tests can be applied to assign the sample to some particular species of the Thunnus genus. In the case that the result is negative (absence of Thunnus species), it is possible to verify if Katsuwonus pelamis is included in the sample. The method even allows the detection of mixtures of these species in relatively low amounts (up to 1%). Finally, this method was applied to 11 commercial samples to verify the labelling status of tuna products in the market, detecting that 18% were mislabelling.
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Affiliation(s)
- Francisco J Santaclara
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain.
| | - Amaya Velasco
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
| | - Ricardo I Pérez-Martín
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
| | - Javier Quinteiro
- Universidad de Santiago de Compostela, Facultad de Biología, Departamento de Bioquímica y Biología Molecular, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Manuel Rey-Méndez
- Universidad de Santiago de Compostela, Facultad de Biología, Departamento de Bioquímica y Biología Molecular, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Miguel Angel Pardo
- AZTI - Tecnalia, Unidad de Investigación Alimentaria, Bizkaiko Teknologi Parkea, Astondo Bidea - Edif. 609, 48160 Derio, Bizkaia, Spain
| | - Elisa Jimenez
- AZTI - Tecnalia, Unidad de Investigación Alimentaria, Bizkaiko Teknologi Parkea, Astondo Bidea - Edif. 609, 48160 Derio, Bizkaia, Spain
| | - Carmen G Sotelo
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
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11
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Toll-like receptor expression in the nervous system of bovine alpha-herpesvirus-infected calves. Res Vet Sci 2014; 97:422-9. [DOI: 10.1016/j.rvsc.2014.06.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 05/29/2014] [Accepted: 06/28/2014] [Indexed: 12/25/2022]
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12
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Market Analysis of Food and Feed Products for Detection of Horse DNA by a TaqMan Real-Time PCR. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9914-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Herrero B, Royo LJ, Lago FC, Vieites JM, Espiñeira M. Authentication of male beef by multiplex fast real-time PCR. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013; 30:218-25. [DOI: 10.1080/19440049.2012.740164] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Espiñeira M, Herrero B, Vieites J, Santaclara F. Detection and identification of anisakids in seafood by fragment length polymorphism analysis and PCR–RFLP of ITS-1 region. Food Control 2010. [DOI: 10.1016/j.foodcont.2009.12.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Bishop S, King J, Windsor P, Reichel MP, Ellis J, Slapeta J. The first report of ovine cerebral neosporosis and evaluation of Neospora caninum prevalence in sheep in New South Wales. Vet Parasitol 2010; 170:137-42. [PMID: 20189309 DOI: 10.1016/j.vetpar.2010.01.030] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Revised: 01/15/2010] [Accepted: 01/20/2010] [Indexed: 11/27/2022]
Abstract
Presence of Neospora caninum DNA was detected in the brain and spinal cord of an adult Merino sheep suspected of dying with acute non-suppurative meningoencephalitis and mild to moderate non-suppurative myelitis. The most severe neurological lesions were found in the midbrain at the rostral coliculi with moderate to severe multifocal vasculitis and gliosis. As this was the first known occurrence of cerebral disease in sheep in Australia caused by N. caninum, we surveyed sera from five sheep properties in New South Wales (NSW) to obtain information on the likely prevalence of N. caninum infection in NSW sheep flocks. Serology using a commercial indirect enzyme-linked immunosorbent assay (ELISA) revealed no N. caninum antibody-positive sheep (n=184). However an observed prevalence for N. caninum antibodies using a commercially available competitive ELISA was 2.2% (5/232). We conclude that although the diagnosis of fatal ovine cerebral neosporosis is of importance to our surveillance program for transmissible spongiform encephalopathy (TSE) exclusion, sheep in NSW are not commonly infected with N. caninum and this species likely plays only a minor role in the life cycle of this parasite in Australia.
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Affiliation(s)
- Stephanie Bishop
- Faculty of Veterinary Science, University of Sydney, New South Wales 2006, Australia
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Rojas M, González I, Fajardo V, Martín I, Hernández P, García T, Martín R. Identification of raw and heat-processed meats from game bird species by polymerase chain reaction-restriction fragment length polymorphism of the mitochondrial D-loop region. Poult Sci 2009; 88:669-79. [DOI: 10.3382/ps.2008-00261] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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17
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Espiñeira M, González-Lavín N, Vieites JM, Santaclara FJ. Development of a method for the genetic identification of flatfish species on the basis of mitochondrial DNA sequences. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:8954-8961. [PMID: 18783237 DOI: 10.1021/jf800570r] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In the present study a method for genetic identification of flatfish species was developed. The technique is based on DNA sequencing of amplified DNA by PCR and subsequent phylogenetic analysis ( FINS). A phylogenetic tree using the cytochrome oxidase subunit I (COI) was constructed and the bootstrap values calculated. The mentioned technique allows the genetic identification of more than 50 flatfish species in fresh, frozen, and precooked products. This analytical system was validated and subsequently applied to 30 commercial samples, obtaining 13 that were incorrectly labeled (43%). Four of the mislabeled samples were whole fish (31%), and nine were fillets (69%). The species with the higher rate of incorrect labeling were Pleuronectes platessa (17%) and Solea solea (10%). Other species incorrectly labeled were Hipoglossus hipoglossus (7%), Reinharditus hippoglossoides, Limanda ferruginea, and Microstomus kitt (3% each species). Therefore, this molecular tool is appropriate to clarify questions related with the correct labeling of commercial products, the traceability of raw materials, and the control of imported flatfish, and also can be applied to questions linked to the control of fisheries.
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Affiliation(s)
- Montserrat Espiñeira
- Area of Molecular Biology and Biotechnology, ANFACO-CECOPESCA, Vigo, 36310 Pontevedra, Spain
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Santaclara FJ, Espiñeira M, Vieites JM. Genetic identification of squids (families Ommastrephidae and Loliginidae) by PCR-RFLP and FINS methodologies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:9913-9920. [PMID: 17979229 DOI: 10.1021/jf0707177] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Cephalopods are a taxonomic group that contains a great number of families, genera and species, with many of them very important at the commercial level. The existence of very similar species in this class added up to the transformation process applied to them makes it difficult or even impossible for species identification based on morphological characterization. Moreover, the global commerce makes it possible that one determined species can be marketed in its antipodes. These questions suggest the necessity of molecular techniques to solve this situation. In the present work, a genetic method was developed on the basis of the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and forensically informative nucleotide sequencing (FINS) technique and makes possible the identification of more than 20 species belonging to the families Ommastrephidae and Loliginidae, as well as some octopus and sepia species. The PCR was employed to amplify 651 and 208 bp fragments of the mitochondrial cytochrome b gene. These molecular systems were applied to fresh, frozen, precooked, even canned cephalopods, allowing for the identification of the species included in these products. Therefore, these molecular tools could be applied in questions related to correct labeling, traceability, and importation controls of squids, sepias, and octopuses.
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