Cytological analysis of hybrids among triticales and trigopiros

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 chro...

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Autores principales:	Fradkin, Maia, Greizerstein, Eduardo José, Poggio, Lidia, Ferrari, María Rosa
Publicado:	2009
Materias:	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
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14154757_v32_n4_p797_Fradkin http://hdl.handle.net/20.500.12110/paper_14154757_v32_n4_p797_Fradkin
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14154757_v32_n4_p797_Fradkin
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spelling	paper:paper_14154757_v32_n4_p797_Fradkin2023-06-08T16:13:31Z Cytological analysis of hybrids among triticales and trigopiros Fradkin, Maia Greizerstein, Eduardo José Poggio, Lidia Ferrari, María Rosa 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 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. Fil:Fradkin, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Greizerstein, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ferrari, M.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14154757_v32_n4_p797_Fradkin http://hdl.handle.net/20.500.12110/paper_14154757_v32_n4_p797_Fradkin
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Fradkin, Maia Greizerstein, Eduardo José Poggio, Lidia Ferrari, María Rosa Cytological analysis of hybrids among triticales and trigopiros
topic_facet	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
description	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.
author	Fradkin, Maia Greizerstein, Eduardo José Poggio, Lidia Ferrari, María Rosa
author_facet	Fradkin, Maia Greizerstein, Eduardo José Poggio, Lidia Ferrari, María Rosa
author_sort	Fradkin, Maia
title	Cytological analysis of hybrids among triticales and trigopiros
title_short	Cytological analysis of hybrids among triticales and trigopiros
title_full	Cytological analysis of hybrids among triticales and trigopiros
title_fullStr	Cytological analysis of hybrids among triticales and trigopiros
title_full_unstemmed	Cytological analysis of hybrids among triticales and trigopiros
title_sort	cytological analysis of hybrids among triticales and trigopiros
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14154757_v32_n4_p797_Fradkin http://hdl.handle.net/20.500.12110/paper_14154757_v32_n4_p797_Fradkin
work_keys_str_mv	AT fradkinmaia cytologicalanalysisofhybridsamongtriticalesandtrigopiros AT greizersteineduardojose cytologicalanalysisofhybridsamongtriticalesandtrigopiros AT poggiolidia cytologicalanalysisofhybridsamongtriticalesandtrigopiros AT ferrarimariarosa cytologicalanalysisofhybridsamongtriticalesandtrigopiros
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Cytological analysis of hybrids among triticales and trigopiros

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