Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)

Autores
Colombo, P.C.
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Grasshoppers have been much less studied than Drosophila when it comes to inversion polymorphisms, despite the occurrence of this rearrangement in several species of grasshoppers. In the present study, 354 males from a natural population of the New World species Trimerotropis pallidipennis, polymorphic for 6 pericentric inversions in 4 chromosome pairs, were sampled at the beginning and at the end of the adult life span. This sampling, along with the fact that generations in this grasshopper are annual and discrete, was done to detect differential adult male longevity among karyotypes and departures from formal null models, such as gametic phase equilibrium. These methods allow the detection of natural selection taking place in the wild. The comparison between age classes showed that some inversions were significantly more frequent in one sample, thus revealing the operation of natural selection. Gametic phase disequilibrium was detected in the sample of aged males but not in the sample of young ones. Furthermore, here we aim to detect the phenotypic targets of longevity selection by examining morphometric characters, in order to have a clearer idea of the relation between inversions and natural selection in this species. These results corroborate previous studies that suggested that the inversions are involved in natural selection, and an adaptive model has been proposed for the pattern of inversion frequencies throughout several populations at different altitudes and latitudes.
Fil:Colombo, P.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Hereditas 2003;139(1):68-74
Materia
age
altitude
article
chromosome pairing
controlled study
gamete
gene frequency
gene rearrangement
genetic polymorphism
grasshopper
karyotype
latitude
lifespan
longevity
male
morphometrics
natural population
natural selection
nonhuman
Orthoptera
pericentric chromosome inversion
phenotype
population genetics
species distribution
species identification
Trimerotropis pallidipennis
Animals
Chromosome Mapping
Grasshoppers
Karyotyping
Linkage Disequilibrium
Male
Orthoptera
Phenotype
Polymorphism, Genetic
Regression Analysis
Time Factors
Insecta
Orthoptera
Trimerotropis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_00180661_v139_n1_p68_Colombo

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oai_identifier_str paperaa:paper_00180661_v139_n1_p68_Colombo
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)Colombo, P.C.agealtitudearticlechromosome pairingcontrolled studygametegene frequencygene rearrangementgenetic polymorphismgrasshopperkaryotypelatitudelifespanlongevitymalemorphometricsnatural populationnatural selectionnonhumanOrthopterapericentric chromosome inversionphenotypepopulation geneticsspecies distributionspecies identificationTrimerotropis pallidipennisAnimalsChromosome MappingGrasshoppersKaryotypingLinkage DisequilibriumMaleOrthopteraPhenotypePolymorphism, GeneticRegression AnalysisTime FactorsInsectaOrthopteraTrimerotropisGrasshoppers have been much less studied than Drosophila when it comes to inversion polymorphisms, despite the occurrence of this rearrangement in several species of grasshoppers. In the present study, 354 males from a natural population of the New World species Trimerotropis pallidipennis, polymorphic for 6 pericentric inversions in 4 chromosome pairs, were sampled at the beginning and at the end of the adult life span. This sampling, along with the fact that generations in this grasshopper are annual and discrete, was done to detect differential adult male longevity among karyotypes and departures from formal null models, such as gametic phase equilibrium. These methods allow the detection of natural selection taking place in the wild. The comparison between age classes showed that some inversions were significantly more frequent in one sample, thus revealing the operation of natural selection. Gametic phase disequilibrium was detected in the sample of aged males but not in the sample of young ones. Furthermore, here we aim to detect the phenotypic targets of longevity selection by examining morphometric characters, in order to have a clearer idea of the relation between inversions and natural selection in this species. These results corroborate previous studies that suggested that the inversions are involved in natural selection, and an adaptive model has been proposed for the pattern of inversion frequencies throughout several populations at different altitudes and latitudes.Fil:Colombo, P.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2003info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00180661_v139_n1_p68_ColomboHereditas 2003;139(1):68-74reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:42:57Zpaperaa:paper_00180661_v139_n1_p68_ColomboInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:58.639Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
title Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
spellingShingle Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
Colombo, P.C.
age
altitude
article
chromosome pairing
controlled study
gamete
gene frequency
gene rearrangement
genetic polymorphism
grasshopper
karyotype
latitude
lifespan
longevity
male
morphometrics
natural population
natural selection
nonhuman
Orthoptera
pericentric chromosome inversion
phenotype
population genetics
species distribution
species identification
Trimerotropis pallidipennis
Animals
Chromosome Mapping
Grasshoppers
Karyotyping
Linkage Disequilibrium
Male
Orthoptera
Phenotype
Polymorphism, Genetic
Regression Analysis
Time Factors
Insecta
Orthoptera
Trimerotropis
title_short Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
title_full Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
title_fullStr Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
title_full_unstemmed Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
title_sort Inversion polymorphisms and natural selection in Trimerotropis pallidipennis (Orthoptera)
dc.creator.none.fl_str_mv Colombo, P.C.
author Colombo, P.C.
author_facet Colombo, P.C.
author_role author
dc.subject.none.fl_str_mv age
altitude
article
chromosome pairing
controlled study
gamete
gene frequency
gene rearrangement
genetic polymorphism
grasshopper
karyotype
latitude
lifespan
longevity
male
morphometrics
natural population
natural selection
nonhuman
Orthoptera
pericentric chromosome inversion
phenotype
population genetics
species distribution
species identification
Trimerotropis pallidipennis
Animals
Chromosome Mapping
Grasshoppers
Karyotyping
Linkage Disequilibrium
Male
Orthoptera
Phenotype
Polymorphism, Genetic
Regression Analysis
Time Factors
Insecta
Orthoptera
Trimerotropis
topic age
altitude
article
chromosome pairing
controlled study
gamete
gene frequency
gene rearrangement
genetic polymorphism
grasshopper
karyotype
latitude
lifespan
longevity
male
morphometrics
natural population
natural selection
nonhuman
Orthoptera
pericentric chromosome inversion
phenotype
population genetics
species distribution
species identification
Trimerotropis pallidipennis
Animals
Chromosome Mapping
Grasshoppers
Karyotyping
Linkage Disequilibrium
Male
Orthoptera
Phenotype
Polymorphism, Genetic
Regression Analysis
Time Factors
Insecta
Orthoptera
Trimerotropis
dc.description.none.fl_txt_mv Grasshoppers have been much less studied than Drosophila when it comes to inversion polymorphisms, despite the occurrence of this rearrangement in several species of grasshoppers. In the present study, 354 males from a natural population of the New World species Trimerotropis pallidipennis, polymorphic for 6 pericentric inversions in 4 chromosome pairs, were sampled at the beginning and at the end of the adult life span. This sampling, along with the fact that generations in this grasshopper are annual and discrete, was done to detect differential adult male longevity among karyotypes and departures from formal null models, such as gametic phase equilibrium. These methods allow the detection of natural selection taking place in the wild. The comparison between age classes showed that some inversions were significantly more frequent in one sample, thus revealing the operation of natural selection. Gametic phase disequilibrium was detected in the sample of aged males but not in the sample of young ones. Furthermore, here we aim to detect the phenotypic targets of longevity selection by examining morphometric characters, in order to have a clearer idea of the relation between inversions and natural selection in this species. These results corroborate previous studies that suggested that the inversions are involved in natural selection, and an adaptive model has been proposed for the pattern of inversion frequencies throughout several populations at different altitudes and latitudes.
Fil:Colombo, P.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description Grasshoppers have been much less studied than Drosophila when it comes to inversion polymorphisms, despite the occurrence of this rearrangement in several species of grasshoppers. In the present study, 354 males from a natural population of the New World species Trimerotropis pallidipennis, polymorphic for 6 pericentric inversions in 4 chromosome pairs, were sampled at the beginning and at the end of the adult life span. This sampling, along with the fact that generations in this grasshopper are annual and discrete, was done to detect differential adult male longevity among karyotypes and departures from formal null models, such as gametic phase equilibrium. These methods allow the detection of natural selection taking place in the wild. The comparison between age classes showed that some inversions were significantly more frequent in one sample, thus revealing the operation of natural selection. Gametic phase disequilibrium was detected in the sample of aged males but not in the sample of young ones. Furthermore, here we aim to detect the phenotypic targets of longevity selection by examining morphometric characters, in order to have a clearer idea of the relation between inversions and natural selection in this species. These results corroborate previous studies that suggested that the inversions are involved in natural selection, and an adaptive model has been proposed for the pattern of inversion frequencies throughout several populations at different altitudes and latitudes.
publishDate 2003
dc.date.none.fl_str_mv 2003
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_00180661_v139_n1_p68_Colombo
url http://hdl.handle.net/20.500.12110/paper_00180661_v139_n1_p68_Colombo
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Hereditas 2003;139(1):68-74
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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