Artículo

Fradkin, M.; Greizerstein, E.; Paccapelo, H.; Ferreira, V.; Grassi, E.; Poggio, L.; Ferrari, M.R. "Cytological analysis of hybrids among triticales and trigopiros" (2009) Genetics and Molecular Biology. 32(4):797-801
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Abstract:

We studied three different tricepiros: (Don Santiago x Don Noé), (Cumé x Horovitz) and (Cumé x Don Noé). The tricepiro (Don Santiago x Don Noé) was obtained by crossing the triticale Don Santiago INTA (AABBRR, 2n = 6x = 42) with the trigopiro Don Noé INTA (AABBDDJJ, 2n = 8x = 56). The number of chromosomes for the F1 was 2n = 49, the most frequent meiotic configuration being 14 bivalents and 21 univalents. The univalents were situated in the periphery of the equatorial plane, whereas the bivalents were located in the central zone. The chromatids in some of the univalents split when bivalents underwent reductional division in anaphase I. There were few laggard chromosomes or chromatids at this phase. The number of chromosomes (2n = 48-58) was high and variable, and the number of bivalents per cell (18-23) also high in F3 individuals. In all F8 tricepiros (Don Santiago x Don Noé), F12 tricepiros (Cumé x Horovitz) and F12 tricepiros (Cumé x Don Noé), the number of chromosomes (2n = 42) was the same, these retaining the rye genome, as demonstrated by GISH and FISH. These new synthesized allopolyploids constitute interesting models for investigating the evolutionary changes responsible for diploidization, and the chromosomal and genomic re-ordering that cannot be revealed in natural allopolyploids. Copyright © 2009, Sociedade Brasileira de Genética.

Registro:

Documento: Artículo
Título:Cytological analysis of hybrids among triticales and trigopiros
Autor:Fradkin, M.; Greizerstein, E.; Paccapelo, H.; Ferreira, V.; Grassi, E.; Poggio, L.; Ferrari, M.R.
Filiación:Departamento de Ecología, Genética Y Evolución, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina
Facultad de Agronomía, Universidad Nacional de La Pampa, Santa Rosa, La Pampa, Argentina
Genética, Facultad de Agronomía Y Veterinaria, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, Argentina
Física Biológica, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
Palabras clave:Hybrids; Meiosis; Reductional division; Tricepiro; Univalents; genomic DNA; allopolyploidy; anaphase; article; chromatid; chromosome analysis; chromosome number; cultivar; fluorescence in situ hybridization; genomic in situ hybridization; hybrid; meiosis; nonhuman; plant chromosome; rye; Secale cereale; Triticosecale
Año:2009
Volumen:32
Número:4
Página de inicio:797
Página de fin:801
DOI: http://dx.doi.org/10.1590/S1415-47572009005000070
Handle:http://hdl.handle.net/20.500.12110/paper_14154757_v32_n4_p797_Fradkin
Título revista:Genetics and Molecular Biology
Título revista abreviado:Genet. Mol. Biol.
ISSN:14154757
CODEN:GMBIF
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_14154757_v32_n4_p797_Fradkin.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14154757_v32_n4_p797_Fradkin

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Citas:

---------- APA ----------
Fradkin, M., Greizerstein, E., Paccapelo, H., Ferreira, V., Grassi, E., Poggio, L. & Ferrari, M.R. (2009) . Cytological analysis of hybrids among triticales and trigopiros. Genetics and Molecular Biology, 32(4), 797-801.
http://dx.doi.org/10.1590/S1415-47572009005000070
---------- CHICAGO ----------
Fradkin, M., Greizerstein, E., Paccapelo, H., Ferreira, V., Grassi, E., Poggio, L., et al. "Cytological analysis of hybrids among triticales and trigopiros" . Genetics and Molecular Biology 32, no. 4 (2009) : 797-801.
http://dx.doi.org/10.1590/S1415-47572009005000070
---------- MLA ----------
Fradkin, M., Greizerstein, E., Paccapelo, H., Ferreira, V., Grassi, E., Poggio, L., et al. "Cytological analysis of hybrids among triticales and trigopiros" . Genetics and Molecular Biology, vol. 32, no. 4, 2009, pp. 797-801.
http://dx.doi.org/10.1590/S1415-47572009005000070
---------- VANCOUVER ----------
Fradkin, M., Greizerstein, E., Paccapelo, H., Ferreira, V., Grassi, E., Poggio, L., et al. Cytological analysis of hybrids among triticales and trigopiros. Genet. Mol. Biol. 2009;32(4):797-801.
http://dx.doi.org/10.1590/S1415-47572009005000070