The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina

Autores
Fanara, J.J.; Hasson, E.; Rodríguez, C.
Año de publicación
1997
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Previous works in a colonized and an original population of Drosophila buzzatii have shown a consistent relationship between the inversion polymorphism and thorax length, a measure of body size. However, the populations studied in those reports share a close genealogical relationship as suggested by several lines of evidence. In the present paper, we revisit this issue by analysing the correlation between second chromosome arrangements and thorax length in two Argentinian natural populations (Termas de Rio Hondo and Arroyo Escobar) from different biogeographic areas with different host plants. Our findings are: (1) inversion frequencies were significantly different between populations; (2) the mean thorax length of flies collected in both populations was not significantly different; and (3) we obtain confirming evidence that flies carrying 2st, the ancestral gene order, have on average a smaller body size than those carrying the derived arrangements (2j and 2jz3). These results suggest that the biometrical effect of inversions on body size previously described are due to genetic differences between arrangements and not to the close historical relationship between the populations studied in previous reports.
Fil:Fanara, J.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Hasson, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Rodríguez, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
HEREDITAS 1997;126(3):233-237
Materia
argentina
article
body size
chromosome inversion
chromosome polymorphism
drosophila
gene order
genealogy
host
karyotype
natural population
nonhuman
plant
population genetics
thorax
Animals
Argentina
Body Constitution
Drosophila
Inversion, Chromosome
Polymorphism, Genetic
Drosophila buzzatii
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_v126_n3_p233_Fanara

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oai_identifier_str paperaa:paper_00180661_v126_n3_p233_Fanara
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from ArgentinaFanara, J.J.Hasson, E.Rodríguez, C.argentinaarticlebody sizechromosome inversionchromosome polymorphismdrosophilagene ordergenealogyhostkaryotypenatural populationnonhumanplantpopulation geneticsthoraxAnimalsArgentinaBody ConstitutionDrosophilaInversion, ChromosomePolymorphism, GeneticDrosophila buzzatiiPrevious works in a colonized and an original population of Drosophila buzzatii have shown a consistent relationship between the inversion polymorphism and thorax length, a measure of body size. However, the populations studied in those reports share a close genealogical relationship as suggested by several lines of evidence. In the present paper, we revisit this issue by analysing the correlation between second chromosome arrangements and thorax length in two Argentinian natural populations (Termas de Rio Hondo and Arroyo Escobar) from different biogeographic areas with different host plants. Our findings are: (1) inversion frequencies were significantly different between populations; (2) the mean thorax length of flies collected in both populations was not significantly different; and (3) we obtain confirming evidence that flies carrying 2st, the ancestral gene order, have on average a smaller body size than those carrying the derived arrangements (2j and 2jz3). These results suggest that the biometrical effect of inversions on body size previously described are due to genetic differences between arrangements and not to the close historical relationship between the populations studied in previous reports.Fil:Fanara, J.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Hasson, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Rodríguez, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.1997info: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_v126_n3_p233_FanaraHEREDITAS 1997;126(3):233-237reponame: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/ar2025-09-29T13:42:51Zpaperaa:paper_00180661_v126_n3_p233_FanaraInstitucionalhttps://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 13:42:52.992Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
title The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
spellingShingle The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
Fanara, J.J.
argentina
article
body size
chromosome inversion
chromosome polymorphism
drosophila
gene order
genealogy
host
karyotype
natural population
nonhuman
plant
population genetics
thorax
Animals
Argentina
Body Constitution
Drosophila
Inversion, Chromosome
Polymorphism, Genetic
Drosophila buzzatii
title_short The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
title_full The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
title_fullStr The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
title_full_unstemmed The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
title_sort The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
dc.creator.none.fl_str_mv Fanara, J.J.
Hasson, E.
Rodríguez, C.
author Fanara, J.J.
author_facet Fanara, J.J.
Hasson, E.
Rodríguez, C.
author_role author
author2 Hasson, E.
Rodríguez, C.
author2_role author
author
dc.subject.none.fl_str_mv argentina
article
body size
chromosome inversion
chromosome polymorphism
drosophila
gene order
genealogy
host
karyotype
natural population
nonhuman
plant
population genetics
thorax
Animals
Argentina
Body Constitution
Drosophila
Inversion, Chromosome
Polymorphism, Genetic
Drosophila buzzatii
topic argentina
article
body size
chromosome inversion
chromosome polymorphism
drosophila
gene order
genealogy
host
karyotype
natural population
nonhuman
plant
population genetics
thorax
Animals
Argentina
Body Constitution
Drosophila
Inversion, Chromosome
Polymorphism, Genetic
Drosophila buzzatii
dc.description.none.fl_txt_mv Previous works in a colonized and an original population of Drosophila buzzatii have shown a consistent relationship between the inversion polymorphism and thorax length, a measure of body size. However, the populations studied in those reports share a close genealogical relationship as suggested by several lines of evidence. In the present paper, we revisit this issue by analysing the correlation between second chromosome arrangements and thorax length in two Argentinian natural populations (Termas de Rio Hondo and Arroyo Escobar) from different biogeographic areas with different host plants. Our findings are: (1) inversion frequencies were significantly different between populations; (2) the mean thorax length of flies collected in both populations was not significantly different; and (3) we obtain confirming evidence that flies carrying 2st, the ancestral gene order, have on average a smaller body size than those carrying the derived arrangements (2j and 2jz3). These results suggest that the biometrical effect of inversions on body size previously described are due to genetic differences between arrangements and not to the close historical relationship between the populations studied in previous reports.
Fil:Fanara, J.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Hasson, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Rodríguez, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description Previous works in a colonized and an original population of Drosophila buzzatii have shown a consistent relationship between the inversion polymorphism and thorax length, a measure of body size. However, the populations studied in those reports share a close genealogical relationship as suggested by several lines of evidence. In the present paper, we revisit this issue by analysing the correlation between second chromosome arrangements and thorax length in two Argentinian natural populations (Termas de Rio Hondo and Arroyo Escobar) from different biogeographic areas with different host plants. Our findings are: (1) inversion frequencies were significantly different between populations; (2) the mean thorax length of flies collected in both populations was not significantly different; and (3) we obtain confirming evidence that flies carrying 2st, the ancestral gene order, have on average a smaller body size than those carrying the derived arrangements (2j and 2jz3). These results suggest that the biometrical effect of inversions on body size previously described are due to genetic differences between arrangements and not to the close historical relationship between the populations studied in previous reports.
publishDate 1997
dc.date.none.fl_str_mv 1997
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_v126_n3_p233_Fanara
url http://hdl.handle.net/20.500.12110/paper_00180661_v126_n3_p233_Fanara
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 1997;126(3):233-237
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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