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
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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
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Palabras clave: | Grasshopper; polymorphism; Robertsonian translocation; segregation |
Año: | 1991
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Volumen: | 84
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Número: | 3
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Página de inicio: | 171
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Página de fin: | 178
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DOI: |
http://dx.doi.org/10.1007/BF00127244 |
Título revista: | Genetica
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Título revista abreviado: | Genetica
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ISSN: | 00166707
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CODEN: | GENEA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00166707_v84_n3_p171_Mirol |
Referencias:
- Arundhati, A., Narasinga Rao, P.S.R.L., Sybenga, J., Possible causes of variation in trivalent orientation frequencies in pearl millet and rye (1986) Genetica, 70, pp. 81-87
- Bidau, C. J., 1989. Zonas hibridas en ortópteros: el ejemplo de Dichroplus pratensis (Acrididae). Proceedings I Congreso Argentino de Entomologia (Tucumán), pp. 109–124; Bidau, C.J., The complex Robertsonian system of Dichroplus pratensis (Melanoplinae, Acrididae). II. Effects of the fusion polymorphisms on chiasma frequency and distribution (1990) Heredity, 64, pp. 145-159
- Bidau, C.J., Multivalents resulting from monobrachial homologies within a hybrid zone in Dichroplus pratensis (Acrididae): meiotic orientation and segregation (1991) Heredity, 66, pp. 219-232
- Bidau, C.J., Confalonieri, V.A., A cytophotometric study of micro-and macrospermatids in three species of grasshoppers (Acrididae) (1988) Cytobios, 53, pp. 31-41
- Bidau, C.J., Mirol, P.M., Orientation and segregation of Robertsonian trivalents in Dichroplus pratensis (Acrididae) (1988) Genome, 30, pp. 947-955
- Bidau, C. J., Belinco, C., Mirol, P. M. & Tosto, D. S., 1991. The complex Robertsonian system of Dicroplus pratensis (Melanoplinae, Acrididae). I. Geographic distribution of fusion polymorphisms. Selection, Genetique, Evolution 23 (5) (in press); Chesser, R.K., Baker, R.J., On factors affecting the fixation of chromosomal rearrangements and neutral genes: computer simulations (1986) Evolution, 40 (3), pp. 625-632
- Colombo, P.C., Effects on centric fusions on chiasma frequency and position in Leptysma argentina (Acrididae: Orthoptera). I. Spontaneous and stable polymorphic centric fusions (1987) Genetica, 72, pp. 171-179
- John, B., The role of chromosome change in the evolution of orthopteroid insects (1983) Chromosomes in the evolution of eukaryotes’. Vol. I, pp. 1-110. , A. K., Sharma, A. S., Sharma, CRC Press, Boca Raton
- John, B., Lightfoot, D.C., Weissman, D.B., The meiotic behavior of natural F1 hybrids between Trimerotropis suffusa Scudder and T. cyanipennis Benner (Orthoptera: Oedipodinae) (1983) Canadian Journal of Genetics and Cytology, 25, pp. 467-477
- King, M., Chromosomal rearrangements, speciation and the theoretical approach (1987) Heredity, 59, pp. 1-6
- Lande, R., Effective deme size during long-term evolution estimated from rates of chromosomal rearrangement (1979) Evolution, 33 (1), pp. 234-251
- Long, S.E., Segregation patterns and fertility of domestical mammals with chromosome translocations (1988) The cytogenetics of mammalian autosomal rearrangements, pp. 383-396. , A., Daniel, Alan R. Liss, New York
- López-Fernández, C., Rufas, J.S., Garcia de la Vega, C., Gosávez, J., Cytogenetic studies on Chorthippus jucundus (Fisch.) (Orthoptera). III. The meiotic consequences of a spontaneous centric fusion (1984) Genetica, 63, pp. 3-7
- Redi, C., Capanna, E., Robertsonian heterozygotes in the house mouse and the fate of their germ cells (1988) The cytogenetics of mammalian autosomal rearrangements, pp. 315-359. , A., Daniel, Alan R. Liss, New York
- Searle, J.B., Factors responsible for a karyotypic polymorphism in the common shrew, Sorex araneus (1986) Proc. R. Soc. London B., 229, pp. 277-298
- Searle, J.B., Selection and Robertsonian variation in nature: the case of the common shrew (1988) The cytogenetics of mammalian autosomal rearrangements, pp. 507-531. , A., Daniel, Alan R. Liss, New York
- Sites, J.W., Moritz, C., Chromosomal evolution and speciation revisited (1987) Systematic Zoology, 36 (2), pp. 153-174
- Smith, S.J., Virkii, N., Coleoptera (1978) Animal Cytogenetics, , B., John, Gebruder Borntraeger, Berlin-Stuttgart
- Teoh, S.B., Yong, H.S., A spontaneous centric fusion heterozygote in the tropical grasshopper, Valanga nigricornis (Burmeister) (1983) Caryologia, 36, pp. 165-173
- Tosto, D. S., 1989. Estudios citogenéticos y morfológicos en Dichroplus pratensis (Melanoplinae, Acrididae). Tesis de Licenciatura, Universidad de Buenos Aires; White, M.J.D., (1973) Animal cytology and evolution, , 3rd edit, Cambridge University Press, London-New York
- White, M.J.D., (1978) Modes of speciation, , W. H. Freeman & Co., San Francisco
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