Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus

Many 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 va...

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Autores principales:	Rosetti, Maria Eva Natalia, Remis, Maria Isabel
Publicado:	2012
Materias:	cytochrome c oxidase cytochrome c oxidase 1 mitochondrial DNA unclassified drug agroecosystem Argentina article CO1 gene controlled study Dichroplus elongatus DNA determination gene gene flow gene sequence genetic heterogeneity genetic variability genotype environment interaction geographic distribution geographic origin grasshopper Middle Pleistocene mitochondrial gene nonhuman phylogeny phylogeography population distribution variable number of tandem repeat Animal Distribution Animals Bayes Theorem Cluster Analysis DNA, Mitochondrial Electron Transport Complex IV Female Gene Flow Genetic Speciation Genetic Variation Grasshoppers Haplotypes Insect Proteins Male Models, Genetic Phylogeny Phylogeography Sequence Analysis, DNA Poaceae Schistocerca americana
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n7_p_Rosetti http://hdl.handle.net/20.500.12110/paper_19326203_v7_n7_p_Rosetti
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	paper:paper_19326203_v7_n7_p_Rosetti2023-06-08T16:31:08Z Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus Rosetti, Maria Eva Natalia Remis, Maria Isabel cytochrome c oxidase cytochrome c oxidase 1 mitochondrial DNA unclassified drug agroecosystem Argentina article CO1 gene controlled study Dichroplus elongatus DNA determination gene gene flow gene sequence genetic heterogeneity genetic variability genotype environment interaction geographic distribution geographic origin grasshopper Middle Pleistocene mitochondrial gene nonhuman phylogeny phylogeography population distribution variable number of tandem repeat Animal Distribution Animals Argentina Bayes Theorem Cluster Analysis DNA, Mitochondrial Electron Transport Complex IV Female Gene Flow Genetic Speciation Genetic Variation Grasshoppers Haplotypes Insect Proteins Male Models, Genetic Phylogeny Phylogeography Sequence Analysis, DNA Dichroplus elongatus Poaceae Schistocerca americana Many 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. Fil:Rosetti, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Remis, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n7_p_Rosetti http://hdl.handle.net/20.500.12110/paper_19326203_v7_n7_p_Rosetti
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	cytochrome c oxidase cytochrome c oxidase 1 mitochondrial DNA unclassified drug agroecosystem Argentina article CO1 gene controlled study Dichroplus elongatus DNA determination gene gene flow gene sequence genetic heterogeneity genetic variability genotype environment interaction geographic distribution geographic origin grasshopper Middle Pleistocene mitochondrial gene nonhuman phylogeny phylogeography population distribution variable number of tandem repeat Animal Distribution Animals Argentina Bayes Theorem Cluster Analysis DNA, Mitochondrial Electron Transport Complex IV Female Gene Flow Genetic Speciation Genetic Variation Grasshoppers Haplotypes Insect Proteins Male Models, Genetic Phylogeny Phylogeography Sequence Analysis, DNA Dichroplus elongatus Poaceae Schistocerca americana
spellingShingle	cytochrome c oxidase cytochrome c oxidase 1 mitochondrial DNA unclassified drug agroecosystem Argentina article CO1 gene controlled study Dichroplus elongatus DNA determination gene gene flow gene sequence genetic heterogeneity genetic variability genotype environment interaction geographic distribution geographic origin grasshopper Middle Pleistocene mitochondrial gene nonhuman phylogeny phylogeography population distribution variable number of tandem repeat Animal Distribution Animals Argentina Bayes Theorem Cluster Analysis DNA, Mitochondrial Electron Transport Complex IV Female Gene Flow Genetic Speciation Genetic Variation Grasshoppers Haplotypes Insect Proteins Male Models, Genetic Phylogeny Phylogeography Sequence Analysis, DNA Dichroplus elongatus Poaceae Schistocerca americana Rosetti, Maria Eva Natalia Remis, Maria Isabel Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus
topic_facet	cytochrome c oxidase cytochrome c oxidase 1 mitochondrial DNA unclassified drug agroecosystem Argentina article CO1 gene controlled study Dichroplus elongatus DNA determination gene gene flow gene sequence genetic heterogeneity genetic variability genotype environment interaction geographic distribution geographic origin grasshopper Middle Pleistocene mitochondrial gene nonhuman phylogeny phylogeography population distribution variable number of tandem repeat Animal Distribution Animals Argentina Bayes Theorem Cluster Analysis DNA, Mitochondrial Electron Transport Complex IV Female Gene Flow Genetic Speciation Genetic Variation Grasshoppers Haplotypes Insect Proteins Male Models, Genetic Phylogeny Phylogeography Sequence Analysis, DNA Dichroplus elongatus Poaceae Schistocerca americana
description	Many 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.
author	Rosetti, Maria Eva Natalia Remis, Maria Isabel
author_facet	Rosetti, Maria Eva Natalia Remis, Maria Isabel
author_sort	Rosetti, Maria Eva Natalia
title	Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus
title_short	Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus
title_full	Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus
title_fullStr	Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus
title_full_unstemmed	Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus
title_sort	spatial genetic structure and mitochondrial dna phylogeography of argentinean populations of the grasshopper dichroplus elongatus
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n7_p_Rosetti http://hdl.handle.net/20.500.12110/paper_19326203_v7_n7_p_Rosetti
work_keys_str_mv	AT rosettimariaevanatalia spatialgeneticstructureandmitochondrialdnaphylogeographyofargentineanpopulationsofthegrasshopperdichropluselongatus AT remismariaisabel spatialgeneticstructureandmitochondrialdnaphylogeographyofargentineanpopulationsofthegrasshopperdichropluselongatus
_version_	1768544339220234240

Spatial genetic structure and mitochondrial DNA phylogeography of Argentinean populations of the Grasshopper dichroplus elongatus

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