The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina
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...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Artículo publishedVersion |
| Publicado: |
1997
|
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00180661_v126_n3_p233_Fanara https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00180661_v126_n3_p233_Fanara_oai |
| Aporte de: |
| id |
I28-R145-paper_00180661_v126_n3_p233_Fanara_oai |
|---|---|
| record_format |
dspace |
| spelling |
I28-R145-paper_00180661_v126_n3_p233_Fanara_oai2024-08-16 Fanara, J.J. Hasson, E. Rodríguez, C. 1997 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. application/pdf http://hdl.handle.net/20.500.12110/paper_00180661_v126_n3_p233_Fanara info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar HEREDITAS 1997;126(3):233-237 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 The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00180661_v126_n3_p233_Fanara_oai |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-145 |
| collection |
Repositorio Digital de la Universidad de Buenos Aires (UBA) |
| 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 |
| spellingShingle |
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 Fanara, J.J. Hasson, E. Rodríguez, C. The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina |
| topic_facet |
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 |
| 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. |
| format |
Artículo Artículo publishedVersion |
| author |
Fanara, J.J. Hasson, E. Rodríguez, C. |
| author_facet |
Fanara, J.J. Hasson, E. Rodríguez, C. |
| author_sort |
Fanara, J.J. |
| title |
The effect of polymorphic inversions on body size in two natural populations of Drosophila buzzatii from Argentina |
| 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 |
effect of polymorphic inversions on body size in two natural populations of drosophila buzzatii from argentina |
| publishDate |
1997 |
| url |
http://hdl.handle.net/20.500.12110/paper_00180661_v126_n3_p233_Fanara https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00180661_v126_n3_p233_Fanara_oai |
| work_keys_str_mv |
AT fanarajj theeffectofpolymorphicinversionsonbodysizeintwonaturalpopulationsofdrosophilabuzzatiifromargentina AT hassone theeffectofpolymorphicinversionsonbodysizeintwonaturalpopulationsofdrosophilabuzzatiifromargentina AT rodriguezc theeffectofpolymorphicinversionsonbodysizeintwonaturalpopulationsofdrosophilabuzzatiifromargentina AT fanarajj effectofpolymorphicinversionsonbodysizeintwonaturalpopulationsofdrosophilabuzzatiifromargentina AT hassone effectofpolymorphicinversionsonbodysizeintwonaturalpopulationsofdrosophilabuzzatiifromargentina AT rodriguezc effectofpolymorphicinversionsonbodysizeintwonaturalpopulationsofdrosophilabuzzatiifromargentina |
| _version_ |
1809356961497481216 |