Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level

The activity of nucleolar organizer regions (NORs) and the presence of ribosomal DNA (rDNA) zones were studied in two Triticum x Thinopyrum hybrids: a hexaploid hybrid with 2n = 42 chromosomes, named trigopiro SH16 INTA, and a decaploid hybrid with 2n = 56 chromosomes, named trigopiro Don Noé INTA....

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Detalles Bibliográficos
Autores principales: Fradkin, Maia, Greizerstein, Eduardo José, Ferrari, María Rosa, Poggio, Lidia
Publicado: 2017
Materias:
Ag-NOR
in situ hybridization
pTa71
Thinopyrum
Triticum
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11263504_v151_n6_p996_Fradkin
http://hdl.handle.net/20.500.12110/paper_11263504_v151_n6_p996_Fradkin
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_11263504_v151_n6_p996_Fradkin
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spelling paper:paper_11263504_v151_n6_p996_Fradkin2023-06-08T16:08:07Z Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level Fradkin, Maia Greizerstein, Eduardo José Ferrari, María Rosa Poggio, Lidia Ag-NOR in situ hybridization pTa71 Thinopyrum Triticum The activity of nucleolar organizer regions (NORs) and the presence of ribosomal DNA (rDNA) zones were studied in two Triticum x Thinopyrum hybrids: a hexaploid hybrid with 2n = 42 chromosomes, named trigopiro SH16 INTA, and a decaploid hybrid with 2n = 56 chromosomes, named trigopiro Don Noé INTA. The use of the pTa71 probe revealed the presence of 10 rDNA signals in both hybrids, whereas the Ag-NORs technique showed 10 signals in SH16 and 8 in Don Noé. We concluded that all trigopiro SH16 INTA NORs are active and that the activity of one NOR pair of trigopiro Don Noé INTA is suppressed. Therefore, the amphiplasty phenomenon is present in trigopiro Don Noé INTA but not in trigopiro SH16 INTA. © 2016 Società Botanica Italiana. Fil:Fradkin, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Greizerstein, E.J. 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. Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11263504_v151_n6_p996_Fradkin http://hdl.handle.net/20.500.12110/paper_11263504_v151_n6_p996_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 Ag-NOR
in situ hybridization
pTa71
Thinopyrum
Triticum
spellingShingle Ag-NOR
in situ hybridization
pTa71
Thinopyrum
Triticum
Fradkin, Maia
Greizerstein, Eduardo José
Ferrari, María Rosa
Poggio, Lidia
Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level
topic_facet Ag-NOR
in situ hybridization
pTa71
Thinopyrum
Triticum
description The activity of nucleolar organizer regions (NORs) and the presence of ribosomal DNA (rDNA) zones were studied in two Triticum x Thinopyrum hybrids: a hexaploid hybrid with 2n = 42 chromosomes, named trigopiro SH16 INTA, and a decaploid hybrid with 2n = 56 chromosomes, named trigopiro Don Noé INTA. The use of the pTa71 probe revealed the presence of 10 rDNA signals in both hybrids, whereas the Ag-NORs technique showed 10 signals in SH16 and 8 in Don Noé. We concluded that all trigopiro SH16 INTA NORs are active and that the activity of one NOR pair of trigopiro Don Noé INTA is suppressed. Therefore, the amphiplasty phenomenon is present in trigopiro Don Noé INTA but not in trigopiro SH16 INTA. © 2016 Società Botanica Italiana.
author Fradkin, Maia
Greizerstein, Eduardo José
Ferrari, María Rosa
Poggio, Lidia
author_facet Fradkin, Maia
Greizerstein, Eduardo José
Ferrari, María Rosa
Poggio, Lidia
author_sort Fradkin, Maia
title Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level
title_short Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level
title_full Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level
title_fullStr Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level
title_full_unstemmed Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level
title_sort nucleolar activity in triticum x thinopyrum hybrids with different ploidy level
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11263504_v151_n6_p996_Fradkin
http://hdl.handle.net/20.500.12110/paper_11263504_v151_n6_p996_Fradkin
work_keys_str_mv AT fradkinmaia nucleolaractivityintriticumxthinopyrumhybridswithdifferentploidylevel
AT greizersteineduardojose nucleolaractivityintriticumxthinopyrumhybridswithdifferentploidylevel
AT ferrarimariarosa nucleolaractivityintriticumxthinopyrumhybridswithdifferentploidylevel
AT poggiolidia nucleolaractivityintriticumxthinopyrumhybridswithdifferentploidylevel
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