Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii

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Second chromosome inversion and genotypic frequencies at seven allozyme loci, differentially associated with inversions, were determined in seven natural populations of Drosophila buzzatii. The patterns of variation of allozymes and the inversion polymorphisms were significantly different, indicatin...

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Autores principales: Rodriguez, C., Piccinali, R., Levy, E., Hasson, E.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2000
Materias:
Allozymes
Drosophila buzzatii
Inversion polymorphism
Population structure
allozyme
genetic structure
polymorphism
population genetics
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1010061X_v13_n6_p976_Rodriguez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paperaa:paper_1010061X_v13_n6_p976_Rodriguez
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spelling paperaa:paper_1010061X_v13_n6_p976_Rodriguez2023-06-12T16:48:50Z Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii J. Evol. Biol. 2000;13(6):976-984 Rodriguez, C. Piccinali, R. Levy, E. Hasson, E. Allozymes Drosophila buzzatii Inversion polymorphism Population structure allozyme genetic structure polymorphism population genetics Second chromosome inversion and genotypic frequencies at seven allozyme loci, differentially associated with inversions, were determined in seven natural populations of Drosophila buzzatii. The patterns of variation of allozymes and the inversion polymorphisms were significantly different, indicating the role of adaptive differentiation for the latter. Moreover, the patterns of population structure varied among allozyme loci, suggesting the operation of diversifying selection for certain loci. Differentiation was negligible for Leucyl-amino peptidase (Lap) and Peptidase-2 (Pep-2), low to moderate for Aldehyde oxidase (Aldox), Peptidase-1 (Pep-1) and Esterase-1 (Est-1) and high for Esterase-2 (Est-2) and Xanthine dehydrogenase (Xdh). Significant linkage disequilibria were detected between inversions and Aldox, Est-1, Est-2 and Xdh. Multiple regression analyses of inversion and allele frequencies on environmental variables revealed the existence of clines for inversions, Est-1, Est-2, Xdh and Aldox along altitudinal, latitudinal and/or climatic gradients. Tests using conditional allele frequencies showed that Est-1 and Aldox clines could be accounted for by hitchhiking with inversions, whereas natural selection should be invoked to explain the clines observed for Est-2 and Xdh. Fil:Rodriguez, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Piccinali, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Levy, E. 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. 2000 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1010061X_v13_n6_p976_Rodriguez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic Allozymes
Drosophila buzzatii
Inversion polymorphism
Population structure
allozyme
genetic structure
polymorphism
population genetics
spellingShingle Allozymes
Drosophila buzzatii
Inversion polymorphism
Population structure
allozyme
genetic structure
polymorphism
population genetics
Rodriguez, C.
Piccinali, R.
Levy, E.
Hasson, E.
Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii
topic_facet Allozymes
Drosophila buzzatii
Inversion polymorphism
Population structure
allozyme
genetic structure
polymorphism
population genetics
description Second chromosome inversion and genotypic frequencies at seven allozyme loci, differentially associated with inversions, were determined in seven natural populations of Drosophila buzzatii. The patterns of variation of allozymes and the inversion polymorphisms were significantly different, indicating the role of adaptive differentiation for the latter. Moreover, the patterns of population structure varied among allozyme loci, suggesting the operation of diversifying selection for certain loci. Differentiation was negligible for Leucyl-amino peptidase (Lap) and Peptidase-2 (Pep-2), low to moderate for Aldehyde oxidase (Aldox), Peptidase-1 (Pep-1) and Esterase-1 (Est-1) and high for Esterase-2 (Est-2) and Xanthine dehydrogenase (Xdh). Significant linkage disequilibria were detected between inversions and Aldox, Est-1, Est-2 and Xdh. Multiple regression analyses of inversion and allele frequencies on environmental variables revealed the existence of clines for inversions, Est-1, Est-2, Xdh and Aldox along altitudinal, latitudinal and/or climatic gradients. Tests using conditional allele frequencies showed that Est-1 and Aldox clines could be accounted for by hitchhiking with inversions, whereas natural selection should be invoked to explain the clines observed for Est-2 and Xdh.
format Artículo
Artículo
publishedVersion
author Rodriguez, C.
Piccinali, R.
Levy, E.
Hasson, E.
author_facet Rodriguez, C.
Piccinali, R.
Levy, E.
Hasson, E.
author_sort Rodriguez, C.
title Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii
title_short Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii
title_full Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii
title_fullStr Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii
title_full_unstemmed Contrasting population genetic structures using allozymes and the inversion polymorphism in Drosophila buzzatii
title_sort contrasting population genetic structures using allozymes and the inversion polymorphism in drosophila buzzatii
publishDate 2000
url http://hdl.handle.net/20.500.12110/paper_1010061X_v13_n6_p976_Rodriguez
work_keys_str_mv AT rodriguezc contrastingpopulationgeneticstructuresusingallozymesandtheinversionpolymorphismindrosophilabuzzatii
AT piccinalir contrastingpopulationgeneticstructuresusingallozymesandtheinversionpolymorphismindrosophilabuzzatii
AT levye contrastingpopulationgeneticstructuresusingallozymesandtheinversionpolymorphismindrosophilabuzzatii
AT hassone contrastingpopulationgeneticstructuresusingallozymesandtheinversionpolymorphismindrosophilabuzzatii
_version_ 1769810396209741824

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