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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Autor principal: Fradkin, M.
Otros Autores: Greizerstein, E.J, Ferrari, M.R, Poggio, L.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Taylor and Francis Ltd. 2017
Acceso en línea:Registro en Scopus
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100 1 |a Fradkin, M. 
245 1 0 |a Nucleolar activity in Triticum x Thinopyrum hybrids with different ploidy level 
260 |b Taylor and Francis Ltd.  |c 2017 
270 1 0 |m Fradkin, M.; Cátedra de Mejoramiento Genético, Facultad de Ciencias Agrarias, Universidad Nacional de Lomas de Zamora (UNLZ)Argentina; email: maiafradkin@gmail.com 
506 |2 openaire  |e Política editorial 
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520 3 |a 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.  |l eng 
536 |a Detalles de la financiación: PICT bicentenario 2010-1665 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: Universidad de Buenos Aires 
536 |a Detalles de la financiación: Secretaría de Ciencia y Técnica, Universidad de Buenos Aires, 20020100100859 
536 |a Detalles de la financiación: 2 2015-2017 FA20 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, PIP 0342 
536 |a Detalles de la financiación: This research was carried out in Argentina and supported by grants from the ?Consejo Nacional de Investigaciones Cient?ficas y T?cnicas (CONICET)? (PIP 0342), Agencia Nacional de Promoci?n Cient?fica y Tecnol?gica (PICT bicentenario 2010-1665), Universidad de Buenos Aires (UBACyT: 20020100100859), and Universidad Nacional de Lomas de Zamora LOMACyT 2 2015-2017 FA20. The authors thank Prof. Ing. Agr. H Paccapelo and Prof. Ing V. Ferreira for kindly providing the seeds. 
593 |a Cátedra de Mejoramiento Genético, Facultad de Ciencias Agrarias, Universidad Nacional de Lomas de Zamora (UNLZ), Argentina 
593 |a Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina 
593 |a Laboratorio de Citogenética y Evolución, Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA)–CONICET, Argentina 
593 |a Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina 
593 |a Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Argentina 
690 1 0 |a AG-NOR 
690 1 0 |a IN SITU HYBRIDIZATION 
690 1 0 |a PTA71 
690 1 0 |a THINOPYRUM 
690 1 0 |a TRITICUM 
700 1 |a Greizerstein, E.J. 
700 1 |a Ferrari, M.R. 
700 1 |a Poggio, L. 
773 0 |d Taylor and Francis Ltd., 2017  |g v. 151  |h pp. 996-1001  |k n. 6  |p Plant Biosyst.  |x 11263504  |t Plant Biosystems 
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