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dc.provenanceFacultad de Ciencias Exactas y Naturales de la UBA-
dc.contributor<div class="autor_fcen" id="7503">Rosetti, N.</div>-
dc.contributor<div class="autor_fcen" id="7196">Remis, M.I.</div>-
dc.creator<div class="autor_fcen" id="7503">Rosetti, N.</div>-
dc.creator<div class="autor_fcen" id="7196">Remis, M.I.</div>-
dc.date.accessioned2018-05-04T21:58:29Z-
dc.date.accessioned2018-05-28T15:49:21Z-
dc.date.available2018-05-04T21:58:29Z-
dc.date.available2018-05-28T15:49:21Z-
dc.date.issued2012-
dc.identifier.urihttp://10.0.0.11:8080/jspui/handle/bnmm/68634-
dc.descriptionMany grasshopper species are considered of agronomical importance because they cause damage to pastures and crops. Comprehension of pest population dynamics requires a clear understanding of the genetic diversity and spatial structure of populations. In this study we report on patterns of genetic variation in the South American grasshopper Dichroplus elongatus which is an agricultural pest of crops and forage grasses of great economic significance in Argentina. We use Direct Amplification of Minisatellite Regions (DAMD) and partial sequences of the cytochrome oxydase 1 (COI) mitochondrial gene to investigate intraspecific structure, demographic history and gene flow patterns in twenty Argentinean populations of this species belonging to different geographic and biogeographic regions. DAMD data suggest that, although genetic drift and migration occur within and between populations, measurable relatedness among neighbouring populations declines with distance and dispersal over distances greater than 200 km is not typical, whereas effective gene flow may occur for populations separated by less than 100 km. Landscape analysis was useful to detect genetic discontinuities associated with environmental heterogeneity reflecting the changing agroecosystem. The COI results indicate the existence of strong genetic differentiation between two groups of populations located at both margins of the Paraná River which became separated during climate oscillations of the Middle Pleistocene, suggesting a significant restriction in effective dispersion mediated by females and large scale geographic differentiation. The number of migrants between populations estimated through mitochondrial and DAMD markers suggest that gene flow is low prompting a non-homogeneous spatial structure and justifying the variation through space. Moreover, the genetic analysis of both markers allows us to conclude that males appear to disperse more than females, reducing the chance of the genetic loss associated with recent anthropogenic fragmentation of the D. elongatus studied range. © 2012 Rosetti, Remis.-
dc.descriptionFil:Rosetti, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.-
dc.descriptionFil:Remis, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.-
dc.formatapplication/pdf-
dc.languageeng-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttp://creativecommons.org/licenses/by/2.5/ar-
dc.sourcePLoS ONE 2012;7(7)-
dc.source.urihttp://digital.bl.fcen.uba.ar/Download/paper/paper_19326203_v7_n7_p_Rosetti.pdf-
dc.subjectcytochrome c oxidase-
dc.subjectcytochrome c oxidase 1-
dc.subjectmitochondrial DNA-
dc.subjectunclassified drug-
dc.subjectagroecosystem-
dc.subjectArgentina-
dc.subjectarticle-
dc.subjectCO1 gene-
dc.subjectcontrolled study-
dc.subjectDichroplus elongatus-
dc.subjectDNA determination-
dc.subjectgene-
dc.subjectgene flow-
dc.subjectgene sequence-
dc.subjectgenetic heterogeneity-
dc.subjectgenetic variability-
dc.subjectgenotype environment interaction-
dc.subjectgeographic distribution-
dc.subjectgeographic origin-
dc.subjectgrasshopper-
dc.subjectMiddle Pleistocene-
dc.subjectmitochondrial gene-
dc.subjectnonhuman-
dc.subjectphylogeny-
dc.subjectphylogeography-
dc.subjectpopulation distribution-
dc.subjectvariable number of tandem repeat-
dc.subjectAnimal Distribution-
dc.subjectAnimals-
dc.subjectArgentina-
dc.subjectBayes Theorem-
dc.subjectCluster Analysis-
dc.subjectDNA, Mitochondrial-
dc.subjectElectron Transport Complex IV-
dc.subjectFemale-
dc.subjectGene Flow-
dc.subjectGenetic Speciation-
dc.subjectGenetic Variation-
dc.subjectGrasshoppers-
dc.subjectHaplotypes-
dc.subjectInsect Proteins-
dc.subjectMale-
dc.subjectModels, Genetic-
dc.subjectPhylogeny-
dc.subjectPhylogeography-
dc.subjectSequence Analysis, DNA-
dc.subjectDichroplus elongatus-
dc.subjectPoaceae-
dc.subjectSchistocerca americana-
dc.titleSpatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:ar-repo/semantics/artículo-
dc.typeinfo:eu-repo/semantics/publishedVersion-
Aparece en las colecciones: FCEN - Facultad de Ciencias Exactas y Naturales. UBA

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