Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii

The inversion polymorphism of the cactophilic fly Drosophila buzzatii was studied in two natural populations. We assessed the temporal changes and microspatial population structure. We observed a significant increase in the frequency of arrangement 2J at the expense of 2ST in both populations. These...

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Detalles Bibliográficos
Autores principales: Fernández Iriarte, Pedro José, Levy, Estrella Mariel, Rodríguez, Constantina, Fanara, Juan Jose, Hasson, Esteban Ruben
Publicado: 1999
Materias:
animal tissue
article
chromosome inversion
Drosophila
environment
genetic drift
genetic heterogeneity
genetic polymorphism
genetic variability
nonhuman
population genetics
Animals
Environment
Inversion, Chromosome
Karyotyping
Models, Genetic
Models, Statistical
Polymorphism, Genetic
Variation (Genetics)
Animalia
Drosophila buzzatii
Opuntia
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte
http://hdl.handle.net/20.500.12110/paper_00180661_v131_n2_p93_FernandezIriarte
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00180661_v131_n2_p93_FernandezIriarte
record_format dspace
spelling paper:paper_00180661_v131_n2_p93_FernandezIriarte2023-06-08T14:39:15Z Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii Fernández Iriarte, Pedro José Levy, Estrella Mariel Rodríguez, Constantina Fanara, Juan Jose Hasson, Esteban Ruben animal tissue article chromosome inversion Drosophila environment genetic drift genetic heterogeneity genetic polymorphism genetic variability nonhuman population genetics Animals Drosophila Environment Inversion, Chromosome Karyotyping Models, Genetic Models, Statistical Polymorphism, Genetic Variation (Genetics) Animalia Drosophila buzzatii Opuntia The inversion polymorphism of the cactophilic fly Drosophila buzzatii was studied in two natural populations. We assessed the temporal changes and microspatial population structure. We observed a significant increase in the frequency of arrangement 2J at the expense of 2ST in both populations. These gene arrangements appear to affect the life-history of flies differently. Environmental heterogeneity explains the karyotype coexistence in nature. The analysis of population structure showed that differentiation of inversion frequencies among individual breeding sites, the rotting clacodes of Opuntia vulgaris, was highly significant. The karyotypic frequencies did not depart significantly from Hardy-Weinberg expectations, neither in individual rots nor in the total population. These results suggest that the observed population structure can be easily accounted by random genetic drift. Fil:Fernández Iriarte, P.J. 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:Rodríguez, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 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. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte http://hdl.handle.net/20.500.12110/paper_00180661_v131_n2_p93_FernandezIriarte
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic animal tissue
article
chromosome inversion
Drosophila
environment
genetic drift
genetic heterogeneity
genetic polymorphism
genetic variability
nonhuman
population genetics
Animals
Drosophila
Environment
Inversion, Chromosome
Karyotyping
Models, Genetic
Models, Statistical
Polymorphism, Genetic
Variation (Genetics)
Animalia
Drosophila buzzatii
Opuntia
spellingShingle animal tissue
article
chromosome inversion
Drosophila
environment
genetic drift
genetic heterogeneity
genetic polymorphism
genetic variability
nonhuman
population genetics
Animals
Drosophila
Environment
Inversion, Chromosome
Karyotyping
Models, Genetic
Models, Statistical
Polymorphism, Genetic
Variation (Genetics)
Animalia
Drosophila buzzatii
Opuntia
Fernández Iriarte, Pedro José
Levy, Estrella Mariel
Rodríguez, Constantina
Fanara, Juan Jose
Hasson, Esteban Ruben
Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii
topic_facet animal tissue
article
chromosome inversion
Drosophila
environment
genetic drift
genetic heterogeneity
genetic polymorphism
genetic variability
nonhuman
population genetics
Animals
Drosophila
Environment
Inversion, Chromosome
Karyotyping
Models, Genetic
Models, Statistical
Polymorphism, Genetic
Variation (Genetics)
Animalia
Drosophila buzzatii
Opuntia
description The inversion polymorphism of the cactophilic fly Drosophila buzzatii was studied in two natural populations. We assessed the temporal changes and microspatial population structure. We observed a significant increase in the frequency of arrangement 2J at the expense of 2ST in both populations. These gene arrangements appear to affect the life-history of flies differently. Environmental heterogeneity explains the karyotype coexistence in nature. The analysis of population structure showed that differentiation of inversion frequencies among individual breeding sites, the rotting clacodes of Opuntia vulgaris, was highly significant. The karyotypic frequencies did not depart significantly from Hardy-Weinberg expectations, neither in individual rots nor in the total population. These results suggest that the observed population structure can be easily accounted by random genetic drift.
author Fernández Iriarte, Pedro José
Levy, Estrella Mariel
Rodríguez, Constantina
Fanara, Juan Jose
Hasson, Esteban Ruben
author_facet Fernández Iriarte, Pedro José
Levy, Estrella Mariel
Rodríguez, Constantina
Fanara, Juan Jose
Hasson, Esteban Ruben
author_sort Fernández Iriarte, Pedro José
title Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii
title_short Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii
title_full Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii
title_fullStr Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii
title_full_unstemmed Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii
title_sort temporal and spatial variation of inversion polymorphism in two natural populations of drosophila buzzatii
publishDate 1999
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte
http://hdl.handle.net/20.500.12110/paper_00180661_v131_n2_p93_FernandezIriarte
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AT hassonestebanruben temporalandspatialvariationofinversionpolymorphismintwonaturalpopulationsofdrosophilabuzzatii
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