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
- Institución
- Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
- OAI Identificador
- paperaa:paper_00180661_v126_n3_p233_Fanara
Ver los metadatos del registro completo
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Biblioteca Digital (UBA-FCEN) |
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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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13.070432 |