Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species

In the present study, the chromosomes numbers were confirmed, 2n = 34 for Amaranthus cruentus Linnaeus, 1759, and 2n = 32 for A. hypochondriacus Linnaeus, 1753, A. mantegazzianus Passer, 1864, and A. caudatus Linnaeus, 1753. The distribution and variability of constitutive heterochromatin were detai...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Bonasora, M.G., Poggio, L., Greizerstein, E.J.
Formato: JOUR
Materias:
Amaranthus
Constitutive heterochromatin
DAPI-CMA3
FISH
NORs
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_19930771_v7_n1_p53_Bonasora
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_19930771_v7_n1_p53_Bonasora
record_format dspace
spelling todo:paper_19930771_v7_n1_p53_Bonasora2023-10-03T16:37:32Z Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species Bonasora, M.G. Poggio, L. Greizerstein, E.J. Amaranthus Constitutive heterochromatin DAPI-CMA3 FISH NORs In the present study, the chromosomes numbers were confirmed, 2n = 34 for Amaranthus cruentus Linnaeus, 1759, and 2n = 32 for A. hypochondriacus Linnaeus, 1753, A. mantegazzianus Passer, 1864, and A. caudatus Linnaeus, 1753. The distribution and variability of constitutive heterochromatin were detailed using DAPI-CMA3 banding technique. The position of the nucleolus organizer region (NOR) was observed using Ag-NOR banding (active loci) and fluorescent in situ hybridization (rDNA-FISH) in the four Amaranthus species. Variations in the amount of constitutive heterochromatin were detected both within the species and between them, with DAPI-CMA3 stain. One chromosome pair having a NOR was found in each studied accession, with exception of A. caudatus cv. EEA INTA Anguil. This accession presented four rDNA loci (FISH), being active two of them (Ag-banding). © Marisa Graciela Bonasora et al. Fil:Bonasora, M.G. 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:Greizerstein, E.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19930771_v7_n1_p53_Bonasora
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Amaranthus
Constitutive heterochromatin
DAPI-CMA3
FISH
NORs
spellingShingle Amaranthus
Constitutive heterochromatin
DAPI-CMA3
FISH
NORs
Bonasora, M.G.
Poggio, L.
Greizerstein, E.J.
Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species
topic_facet Amaranthus
Constitutive heterochromatin
DAPI-CMA3
FISH
NORs
description In the present study, the chromosomes numbers were confirmed, 2n = 34 for Amaranthus cruentus Linnaeus, 1759, and 2n = 32 for A. hypochondriacus Linnaeus, 1753, A. mantegazzianus Passer, 1864, and A. caudatus Linnaeus, 1753. The distribution and variability of constitutive heterochromatin were detailed using DAPI-CMA3 banding technique. The position of the nucleolus organizer region (NOR) was observed using Ag-NOR banding (active loci) and fluorescent in situ hybridization (rDNA-FISH) in the four Amaranthus species. Variations in the amount of constitutive heterochromatin were detected both within the species and between them, with DAPI-CMA3 stain. One chromosome pair having a NOR was found in each studied accession, with exception of A. caudatus cv. EEA INTA Anguil. This accession presented four rDNA loci (FISH), being active two of them (Ag-banding). © Marisa Graciela Bonasora et al.
format JOUR
author Bonasora, M.G.
Poggio, L.
Greizerstein, E.J.
author_facet Bonasora, M.G.
Poggio, L.
Greizerstein, E.J.
author_sort Bonasora, M.G.
title Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species
title_short Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species
title_full Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species
title_fullStr Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species
title_full_unstemmed Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species
title_sort cytogenetic studies in four cultivated amaranthus (amaranthaceae) species
url http://hdl.handle.net/20.500.12110/paper_19930771_v7_n1_p53_Bonasora
work_keys_str_mv AT bonasoramg cytogeneticstudiesinfourcultivatedamaranthusamaranthaceaespecies
AT poggiol cytogeneticstudiesinfourcultivatedamaranthusamaranthaceaespecies
AT greizersteinej cytogeneticstudiesinfourcultivatedamaranthusamaranthaceaespecies
_version_ 1807321626998472704

Ejemplares similares