A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster

Autores
Goenaga, Julieta; Fanara, Juan Jose; Hasson, Esteban Ruben
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Food shortage is a stress factor that commonly affects organisms in nature. Resistance to food shortage or starvation resistance (SR) is a complex quantitative trait with direct implications on fitness. However, surveys of natural genetic variation in SR at different geographic scales are scarce. Here, we have measured variation in SR in sets of lines derived from nine natural populations of Drosophila melanogaster collected in western Argentina. Our study shows that within population variation explained a larger proportion of overall phenotypic variance (80%) than among populations (72%). We also noticed that an important fraction of variation was sex-specific. Overall females were more resistant to starvation than males; however, the magnitude of the sexual dimorphism (SD) in SR varied among lines and explained a significant fraction of phenotypic variance in all populations. Estimates of cross-sex genetic correlations suggest that the genetic architecture of SR is only partially shared between sexes in the populations examined, thus, facilitating further evolution of the SD.
Fil: Goenaga, Julieta. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
Fil: Fanara, Juan Jose. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hasson, Esteban Ruben. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Starvation Resistance
Natural Genetic Variation
Sexual Dimorphism
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68688
Acceder
id CONICETDig_2e6ce903bb15a83d71bbc5ef1c89fde0
oai_identifier_str oai:ri.conicet.gov.ar:11336/68688
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogasterGoenaga, JulietaFanara, Juan JoseHasson, Esteban RubenStarvation ResistanceNatural Genetic VariationSexual Dimorphismhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Food shortage is a stress factor that commonly affects organisms in nature. Resistance to food shortage or starvation resistance (SR) is a complex quantitative trait with direct implications on fitness. However, surveys of natural genetic variation in SR at different geographic scales are scarce. Here, we have measured variation in SR in sets of lines derived from nine natural populations of Drosophila melanogaster collected in western Argentina. Our study shows that within population variation explained a larger proportion of overall phenotypic variance (80%) than among populations (72%). We also noticed that an important fraction of variation was sex-specific. Overall females were more resistant to starvation than males; however, the magnitude of the sexual dimorphism (SD) in SR varied among lines and explained a significant fraction of phenotypic variance in all populations. Estimates of cross-sex genetic correlations suggest that the genetic architecture of SR is only partially shared between sexes in the populations examined, thus, facilitating further evolution of the SD.Fil: Goenaga, Julieta. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; ArgentinaFil: Fanara, Juan Jose. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Hasson, Esteban Ruben. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaCambridge University Press2010-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68688Goenaga, Julieta; Fanara, Juan Jose; Hasson, Esteban Ruben; A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster; Cambridge University Press; Genetical Research; 92; 4; 8-2010; 253-2591469-5073CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1017/S0016672310000327info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/genetics-research/article/quantitative-genetic-study-of-starvation-resistance-at-different-geographic-scales-in-natural-populations-of-drosophila-melanogaster/558DD2E4BB976EA45376883072A48E32info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:23Zoai:ri.conicet.gov.ar:11336/68688instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:48:24.248CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
title A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
spellingShingle A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
Goenaga, Julieta
Starvation Resistance
Natural Genetic Variation
Sexual Dimorphism
title_short A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
title_full A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
title_fullStr A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
title_full_unstemmed A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
title_sort A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster
dc.creator.none.fl_str_mv Goenaga, Julieta
Fanara, Juan Jose
Hasson, Esteban Ruben
author Goenaga, Julieta
author_facet Goenaga, Julieta
Fanara, Juan Jose
Hasson, Esteban Ruben
author_role author
author2 Fanara, Juan Jose
Hasson, Esteban Ruben
author2_role author
author
dc.subject.none.fl_str_mv Starvation Resistance
Natural Genetic Variation
Sexual Dimorphism
topic Starvation Resistance
Natural Genetic Variation
Sexual Dimorphism
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Food shortage is a stress factor that commonly affects organisms in nature. Resistance to food shortage or starvation resistance (SR) is a complex quantitative trait with direct implications on fitness. However, surveys of natural genetic variation in SR at different geographic scales are scarce. Here, we have measured variation in SR in sets of lines derived from nine natural populations of Drosophila melanogaster collected in western Argentina. Our study shows that within population variation explained a larger proportion of overall phenotypic variance (80%) than among populations (72%). We also noticed that an important fraction of variation was sex-specific. Overall females were more resistant to starvation than males; however, the magnitude of the sexual dimorphism (SD) in SR varied among lines and explained a significant fraction of phenotypic variance in all populations. Estimates of cross-sex genetic correlations suggest that the genetic architecture of SR is only partially shared between sexes in the populations examined, thus, facilitating further evolution of the SD.
Fil: Goenaga, Julieta. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
Fil: Fanara, Juan Jose. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hasson, Esteban Ruben. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Food shortage is a stress factor that commonly affects organisms in nature. Resistance to food shortage or starvation resistance (SR) is a complex quantitative trait with direct implications on fitness. However, surveys of natural genetic variation in SR at different geographic scales are scarce. Here, we have measured variation in SR in sets of lines derived from nine natural populations of Drosophila melanogaster collected in western Argentina. Our study shows that within population variation explained a larger proportion of overall phenotypic variance (80%) than among populations (72%). We also noticed that an important fraction of variation was sex-specific. Overall females were more resistant to starvation than males; however, the magnitude of the sexual dimorphism (SD) in SR varied among lines and explained a significant fraction of phenotypic variance in all populations. Estimates of cross-sex genetic correlations suggest that the genetic architecture of SR is only partially shared between sexes in the populations examined, thus, facilitating further evolution of the SD.
publishDate 2010
dc.date.none.fl_str_mv 2010-08
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/11336/68688
Goenaga, Julieta; Fanara, Juan Jose; Hasson, Esteban Ruben; A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster; Cambridge University Press; Genetical Research; 92; 4; 8-2010; 253-259
1469-5073
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68688
identifier_str_mv Goenaga, Julieta; Fanara, Juan Jose; Hasson, Esteban Ruben; A quantitative genetic study of starvation resistance at different geographic scales in natural populations of Drosophila melanogaster; Cambridge University Press; Genetical Research; 92; 4; 8-2010; 253-259
1469-5073
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1017/S0016672310000327
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/genetics-research/article/quantitative-genetic-study-of-starvation-resistance-at-different-geographic-scales-in-natural-populations-of-drosophila-melanogaster/558DD2E4BB976EA45376883072A48E32
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613504110166016
score 13.070432

Publicaciones similares