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Abstract:

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.

Registro:

Documento: Artículo
Título:Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii
Autor:Fernández Iriarte, P.J.; Levy, E.; Devincenzi, D.; Rodríguez, C.; Fanara, J.J.; Hasson, E.
Filiación:Laboratorio de Genética, Departamento de Biología, Univ. National de Mar del Plata, Buenos Aires, Argentina
Depto. de Ciencias Biológicas, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Laboratorio de Genética, Departamento de Biología, Univ. Nacional de Mar del Plata, Funes 3250, (7600) Mar del Plata, Argentina
Palabras clave: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
Año:1999
Volumen:131
Número:2
Página de inicio:93
Página de fin:99
Título revista:Hereditas
Título revista abreviado:Hereditas
ISSN:00180661
CODEN:HEREA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00180661_v131_n2_p93_FernandezIriarte.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte

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Citas:

---------- APA ----------
Fernández Iriarte, P.J., Levy, E., Devincenzi, D., Rodríguez, C., Fanara, J.J. & Hasson, E. (1999) . Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii. Hereditas, 131(2), 93-99.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte [ ]
---------- CHICAGO ----------
Fernández Iriarte, P.J., Levy, E., Devincenzi, D., Rodríguez, C., Fanara, J.J., Hasson, E. "Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii" . Hereditas 131, no. 2 (1999) : 93-99.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte [ ]
---------- MLA ----------
Fernández Iriarte, P.J., Levy, E., Devincenzi, D., Rodríguez, C., Fanara, J.J., Hasson, E. "Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii" . Hereditas, vol. 131, no. 2, 1999, pp. 93-99.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte [ ]
---------- VANCOUVER ----------
Fernández Iriarte, P.J., Levy, E., Devincenzi, D., Rodríguez, C., Fanara, J.J., Hasson, E. Temporal and spatial variation of inversion polymorphism in two natural populations of Drosophila buzzatii. Hereditas. 1999;131(2):93-99.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00180661_v131_n2_p93_FernandezIriarte [ ]