Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation
Babesia bovis is a tick-transmitted haemoprotozoan and a causative agent of bovine babesiosis, a cattle disease that causes significant economic loss in tropical and subtropical regions. A panel of nineteen micro- and minisatellite markers was used to estimate population genetic parameters of eighte...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1756 http://onlinelibrary.wiley.com/doi/10.1111/tbed.12121/abstract |
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| author | Flores, Daniela Minichiello, Y. Araujo, Flabio Ribeiro de Shkap, V. Benitez, Daniel Francisco Echaide, Ignacio Eduardo Rolls, P. Mosqueda, J. Pacheco, Maria Gabriela Petterson, Maria Elizabeth Florin-Christensen, Mónica Schnittger, Leonhard |
| author_browse | Araujo, Flabio Ribeiro de Benitez, Daniel Francisco Echaide, Ignacio Eduardo Flores, Daniela Florin-Christensen, Mónica Minichiello, Y. Mosqueda, J. Pacheco, Maria Gabriela Petterson, Maria Elizabeth Rolls, P. Schnittger, Leonhard Shkap, V. |
| author_facet | Flores, Daniela Minichiello, Y. Araujo, Flabio Ribeiro de Shkap, V. Benitez, Daniel Francisco Echaide, Ignacio Eduardo Rolls, P. Mosqueda, J. Pacheco, Maria Gabriela Petterson, Maria Elizabeth Florin-Christensen, Mónica Schnittger, Leonhard |
| author_sort | Flores, Daniela |
| collection | INTA Digital |
| description | Babesia bovis is a tick-transmitted haemoprotozoan and a causative agent of bovine babesiosis, a cattle disease that causes significant economic loss in tropical and subtropical regions. A panel of nineteen micro- and minisatellite markers was used to estimate population genetic parameters of eighteen parasite isolates originating from different continents, countries and geographic regions including North America (Mexico, USA), South America (Argentina, Brazil), the Middle East (Israel) and Australia. For eleven of the eighteen isolates, a unique haplotype was inferred suggesting selection of a single genotype by either in vitro cultivation or amplification in splenectomized calves. Furthermore, a high genetic diversity (H = 0.780) over all marker loci was estimated. Linkage disequilibrium was observed in the total study group but also in sample subgroups from the Americas, Brazil, and Israel and Australia. In contrast, corresponding to their more confined geographic origin, samples from Israel and Argentina were each found to be in equilibrium suggestive of random mating and frequent genetic exchange. The genetic differentiation (FST) of the total study group over all nineteen loci was estimated by analysis of variance (Θ) and Nei's estimation of heterozygosity (GST') as 0.296 and 0.312, respectively. Thus, about 30% of the genetic diversity of the parasite population is associated with genetic differences between parasite isolates sampled from the different geographic regions. The pairwise similarity of multilocus genotypes (MLGs) was assessed and a neighbour-joining dendrogram generated. MLGs were found to cluster according to the country/continent of origin of isolates, but did not distinguish the attenuated from the pathogenic parasite state. The distant geographic origin of the isolates studied allows an initial glimpse into the large extent of genetic diversity and differentiation of the B. bovis population on a global scale. |
| format | Artículo |
| id | INTA1756 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA17562019-06-05T16:50:18Z Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation Flores, Daniela Minichiello, Y. Araujo, Flabio Ribeiro de Shkap, V. Benitez, Daniel Francisco Echaide, Ignacio Eduardo Rolls, P. Mosqueda, J. Pacheco, Maria Gabriela Petterson, Maria Elizabeth Florin-Christensen, Mónica Schnittger, Leonhard Babesia Bovis Variación Genética Genetic Variation Genetic Markers Population Structure Babesiosis Marcadores Genéticos Estructura de la Población Babesia bovis is a tick-transmitted haemoprotozoan and a causative agent of bovine babesiosis, a cattle disease that causes significant economic loss in tropical and subtropical regions. A panel of nineteen micro- and minisatellite markers was used to estimate population genetic parameters of eighteen parasite isolates originating from different continents, countries and geographic regions including North America (Mexico, USA), South America (Argentina, Brazil), the Middle East (Israel) and Australia. For eleven of the eighteen isolates, a unique haplotype was inferred suggesting selection of a single genotype by either in vitro cultivation or amplification in splenectomized calves. Furthermore, a high genetic diversity (H = 0.780) over all marker loci was estimated. Linkage disequilibrium was observed in the total study group but also in sample subgroups from the Americas, Brazil, and Israel and Australia. In contrast, corresponding to their more confined geographic origin, samples from Israel and Argentina were each found to be in equilibrium suggestive of random mating and frequent genetic exchange. The genetic differentiation (FST) of the total study group over all nineteen loci was estimated by analysis of variance (Θ) and Nei's estimation of heterozygosity (GST') as 0.296 and 0.312, respectively. Thus, about 30% of the genetic diversity of the parasite population is associated with genetic differences between parasite isolates sampled from the different geographic regions. The pairwise similarity of multilocus genotypes (MLGs) was assessed and a neighbour-joining dendrogram generated. MLGs were found to cluster according to the country/continent of origin of isolates, but did not distinguish the attenuated from the pathogenic parasite state. The distant geographic origin of the isolates studied allows an initial glimpse into the large extent of genetic diversity and differentiation of the B. bovis population on a global scale. Fil: Flores, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina Fil: Minichiello, Y. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina Fil: Araujo, Flabio R. EMBRAPA ; Brasil Fil: Shkap, V. Kimron Veterinary Institute; Israel Fil: Benitez, Daniel Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mercedes; Argentina Fil: Echaide, Ignacio Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Rolls, P. Tick Fever Centre; Australia Fil: Mosqueda, J. Universidad Autónoma de Querétaro; México Fil: Pacheco, Maria Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Petterson, Maria Elizabeth. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Florin-Christensen, Mónica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Schnittger, Leonhard. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2017-11-13T16:55:40Z 2017-11-13T16:55:40Z 2013-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1756 http://onlinelibrary.wiley.com/doi/10.1111/tbed.12121/abstract 1865-1674 (Print) 1865-1682 (Online) DOI: 10.1111/tbed.12121 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Transboundary and Emerging Diseases 60 (s2) : 131–136 (November 2013) |
| spellingShingle | Babesia Bovis Variación Genética Genetic Variation Genetic Markers Population Structure Babesiosis Marcadores Genéticos Estructura de la Población Flores, Daniela Minichiello, Y. Araujo, Flabio Ribeiro de Shkap, V. Benitez, Daniel Francisco Echaide, Ignacio Eduardo Rolls, P. Mosqueda, J. Pacheco, Maria Gabriela Petterson, Maria Elizabeth Florin-Christensen, Mónica Schnittger, Leonhard Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation |
| title | Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation |
| title_full | Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation |
| title_fullStr | Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation |
| title_full_unstemmed | Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation |
| title_short | Evidence for extensive genetic diversity and substructuring of the Babesia bovis metapopulation |
| title_sort | evidence for extensive genetic diversity and substructuring of the babesia bovis metapopulation |
| topic | Babesia Bovis Variación Genética Genetic Variation Genetic Markers Population Structure Babesiosis Marcadores Genéticos Estructura de la Población |
| url | http://hdl.handle.net/20.500.12123/1756 http://onlinelibrary.wiley.com/doi/10.1111/tbed.12121/abstract |
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