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Abstract:

The meiotic behavior of Robertsonian heterozygotes of Dichroplus pratensis was analyzed in order to establish the nature of the fusion polymorphisms (stable or transient) that occur in the species. The range of fusion frequencies varies widely for each fusion studied and populations with extreme frequencies exist, which could indicate a tendency for the loss or fixation of a given rearrangement. Our results revealed that no significant correlation exists between orientation (convergent and non-convergent) in PMI and MI and fusion frequency, nor between aneuploidy and fusion frequency. Thus, orientation and segregation seem to be independent of the frequencies of the fusions, which also do not appear to affect severely the fertility of heterozygotes. Our data suggest that the polymorphisms are, at least, cytogenetically stable. © 1991 Kluwer Academic Publishers.

Registro:

Documento: Artículo
Título:Meiotic behavior of Robertsonian heterozygotes in populations of Dichroplus pratensis (Acrididae) with different fusion frequencies
Autor:Mirol, P.M.; Bidau, C.J.
Filiación:Laboratorio de Genética, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina
Departamento de Genética, Facultad de Ciencias Exactas, Quimicas y Naturales, Universidad Nacional de Misiones, Félix de Azara 1552, 6 piso, Posadas (Misiones), 3300, Argentina
Palabras clave:Grasshopper; polymorphism; Robertsonian translocation; segregation
Año:1991
Volumen:84
Número:3
Página de inicio:171
Página de fin:178
DOI: http://dx.doi.org/10.1007/BF00127244
Título revista:Genetica
Título revista abreviado:Genetica
ISSN:00166707
CODEN:GENEA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00166707_v84_n3_p171_Mirol

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Citas:

---------- APA ----------
Mirol, P.M. & Bidau, C.J. (1991) . Meiotic behavior of Robertsonian heterozygotes in populations of Dichroplus pratensis (Acrididae) with different fusion frequencies. Genetica, 84(3), 171-178.
http://dx.doi.org/10.1007/BF00127244
---------- CHICAGO ----------
Mirol, P.M., Bidau, C.J. "Meiotic behavior of Robertsonian heterozygotes in populations of Dichroplus pratensis (Acrididae) with different fusion frequencies" . Genetica 84, no. 3 (1991) : 171-178.
http://dx.doi.org/10.1007/BF00127244
---------- MLA ----------
Mirol, P.M., Bidau, C.J. "Meiotic behavior of Robertsonian heterozygotes in populations of Dichroplus pratensis (Acrididae) with different fusion frequencies" . Genetica, vol. 84, no. 3, 1991, pp. 171-178.
http://dx.doi.org/10.1007/BF00127244
---------- VANCOUVER ----------
Mirol, P.M., Bidau, C.J. Meiotic behavior of Robertsonian heterozygotes in populations of Dichroplus pratensis (Acrididae) with different fusion frequencies. Genetica. 1991;84(3):171-178.
http://dx.doi.org/10.1007/BF00127244