Artículo
Rebagliati, P.; Papeschi, A.G.; Mola, L.M.; Pietrokovsky, S.; Gajate, P.; Bottazzi, V.; Wisnivesky-Colli, C. "Comparative Meiotic Studies in Triatoma sordida (Stål) and T. guasayana Wygodzinsky & Abalos (Reduviidae, Heteroptera)" (1998) Memorias do Instituto Oswaldo Cruz. 93(3):309-315
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Abstract:
Triatoma sordida and T. guasayana are competent Trypanosoma cruzi vectors, with overlapping distribution areas in Argentina. Both species are morphologically similar, and their immature stages are hard to discriminate. Cytogenetic studies in the genus Triatoma reveal scarce karyotypic variations, being 2n= 20 + XY the most frequent diploid number in males. In the present work the meiotic behaviour of different Argentinian populations of T. sordida and T. guasayana has been analyzed; the meiotic karyotype of both species has also been compared. The species differ in total chromosome area and in the relative area of the sex chromosomes. These meiotic karyotypic differences constitute an additional tool for the taxonomic characterization of T. sordida and T. guasayana. The analysis of an interpopulation hybrid of T. sordida (Brazil x Argentina) reveals a regular meiotic behaviour, despite the presence of heteromorphic bivalents. Our observations support the hypothesis that karyotype variations through the gain or loss of heterochromatin can not be considered as a primary mechanism of reproductive isolation in Triatoma.
Registro:
| Documento: | Artículo |
| Título: | Comparative Meiotic Studies in Triatoma sordida (Stål) and T. guasayana Wygodzinsky & Abalos (Reduviidae, Heteroptera) |
| Autor: | Rebagliati, P.; Papeschi, A.G.; Mola, L.M.; Pietrokovsky, S.; Gajate, P.; Bottazzi, V.; Wisnivesky-Colli, C. |
| Filiación: | Laboratorio de Genética, Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428, Buenos Aires, Argentina U. Ecologia Reservorios Vectores P., Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428, Buenos Aires, Argentina |
| Palabras clave: | Heteroptera; Holokinetic chromosomes; Meiotic behaviour; Meiotic karyotype; Triatoma; Heteroptera; Reduviidae; Triatoma guasayana; Triatoma sordida; Trypanosoma; Trypanosoma cruzi; animal; Argentina; article; chromosome map; classification; comparative study; cytology; genetics; karyotyping; male; meiosis; sex chromosome; spermatogenesis; Triatoma; Triatominae; Animals; Argentina; Chromosome Mapping; Karyotyping; Male; Meiosis; Sex Chromosomes; Spermatogenesis; Triatoma; Triatominae |
| Año: | 1998 |
| Volumen: | 93 |
| Número: | 3 |
| Página de inicio: | 309 |
| Página de fin: | 315 |
| DOI: | http://dx.doi.org/10.1590/S0074-02761998000300007 |
| Título revista: | Memorias do Instituto Oswaldo Cruz |
| Título revista abreviado: | Mem. Inst. Oswaldo Cruz |
| ISSN: | 00740276 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00740276_v93_n3_p309_Rebagliati |
Referencias:
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Citas:
---------- APA ----------
Rebagliati, P., Papeschi, A.G., Mola, L.M., Pietrokovsky, S., Gajate, P., Bottazzi, V. & Wisnivesky-Colli, C. (1998) . Comparative Meiotic Studies in Triatoma sordida (Stål) and T. guasayana Wygodzinsky & Abalos (Reduviidae, Heteroptera). Memorias do Instituto Oswaldo Cruz, 93(3), 309-315.http://dx.doi.org/10.1590/S0074-02761998000300007
---------- CHICAGO ----------
Rebagliati, P., Papeschi, A.G., Mola, L.M., Pietrokovsky, S., Gajate, P., Bottazzi, V., et al. "Comparative Meiotic Studies in Triatoma sordida (Stål) and T. guasayana Wygodzinsky & Abalos (Reduviidae, Heteroptera)" . Memorias do Instituto Oswaldo Cruz 93, no. 3 (1998) : 309-315.http://dx.doi.org/10.1590/S0074-02761998000300007
---------- MLA ----------
Rebagliati, P., Papeschi, A.G., Mola, L.M., Pietrokovsky, S., Gajate, P., Bottazzi, V., et al. "Comparative Meiotic Studies in Triatoma sordida (Stål) and T. guasayana Wygodzinsky & Abalos (Reduviidae, Heteroptera)" . Memorias do Instituto Oswaldo Cruz, vol. 93, no. 3, 1998, pp. 309-315.http://dx.doi.org/10.1590/S0074-02761998000300007
---------- VANCOUVER ----------
Rebagliati, P., Papeschi, A.G., Mola, L.M., Pietrokovsky, S., Gajate, P., Bottazzi, V., et al. Comparative Meiotic Studies in Triatoma sordida (Stål) and T. guasayana Wygodzinsky & Abalos (Reduviidae, Heteroptera). Mem. Inst. Oswaldo Cruz. 1998;93(3):309-315.http://dx.doi.org/10.1590/S0074-02761998000300007
