Heterochromatin variation in artemia populations

The genus Artemia is an interesting model organism for evolutionary studies since many factors driving speciation have been observed in the genus. It has been suggested that in this genus heterochromatin content could be a reliable criteria to establish taxonomic identity of populations. In the pres...

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Autores principales: Papeschi, A.G., Lipko, P., Amat, F., Cohen, R.G.
Formato: JOUR
Materias:
Artemia
C-banding
Chromocenter number
Heterochromatin content
Artemia franciscana
Artemia persimilis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00087114_v61_n1_p53_Papeschi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00087114_v61_n1_p53_Papeschi
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spelling todo:paper_00087114_v61_n1_p53_Papeschi2023-10-03T14:07:53Z Heterochromatin variation in artemia populations Papeschi, A.G. Lipko, P. Amat, F. Cohen, R.G. Artemia C-banding Chromocenter number Heterochromatin content Artemia Artemia franciscana Artemia persimilis The genus Artemia is an interesting model organism for evolutionary studies since many factors driving speciation have been observed in the genus. It has been suggested that in this genus heterochromatin content could be a reliable criteria to establish taxonomic identity of populations. In the present work the heterochromatin content was determined in 4 populations of A. franciscana and seven populations of A. persimilis, six from Argentina and one from Chile. Heterochromatin was revealed by C-banding and the heterochromatin content (measured as chromocenter number and C-positive area in nauplii interphase nuclei) was compared. A standardized procedure to evaluate the heterochromatin content is here proposed so that the results from different laboratories could be compared. We analyze the intra and interspecific variation in heterochromatin content in the different Artemia populations and we discuss the value of this trait as a population and/or specific cytogenetic marker. © 2008 Taylor & Francis Group, LLC. Fil:Papeschi, A.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lipko, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cohen, R.G. 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_00087114_v61_n1_p53_Papeschi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Artemia
C-banding
Chromocenter number
Heterochromatin content
Artemia
Artemia franciscana
Artemia persimilis
spellingShingle Artemia
C-banding
Chromocenter number
Heterochromatin content
Artemia
Artemia franciscana
Artemia persimilis
Papeschi, A.G.
Lipko, P.
Amat, F.
Cohen, R.G.
Heterochromatin variation in artemia populations
topic_facet Artemia
C-banding
Chromocenter number
Heterochromatin content
Artemia
Artemia franciscana
Artemia persimilis
description The genus Artemia is an interesting model organism for evolutionary studies since many factors driving speciation have been observed in the genus. It has been suggested that in this genus heterochromatin content could be a reliable criteria to establish taxonomic identity of populations. In the present work the heterochromatin content was determined in 4 populations of A. franciscana and seven populations of A. persimilis, six from Argentina and one from Chile. Heterochromatin was revealed by C-banding and the heterochromatin content (measured as chromocenter number and C-positive area in nauplii interphase nuclei) was compared. A standardized procedure to evaluate the heterochromatin content is here proposed so that the results from different laboratories could be compared. We analyze the intra and interspecific variation in heterochromatin content in the different Artemia populations and we discuss the value of this trait as a population and/or specific cytogenetic marker. © 2008 Taylor & Francis Group, LLC.
format JOUR
author Papeschi, A.G.
Lipko, P.
Amat, F.
Cohen, R.G.
author_facet Papeschi, A.G.
Lipko, P.
Amat, F.
Cohen, R.G.
author_sort Papeschi, A.G.
title Heterochromatin variation in artemia populations
title_short Heterochromatin variation in artemia populations
title_full Heterochromatin variation in artemia populations
title_fullStr Heterochromatin variation in artemia populations
title_full_unstemmed Heterochromatin variation in artemia populations
title_sort heterochromatin variation in artemia populations
url http://hdl.handle.net/20.500.12110/paper_00087114_v61_n1_p53_Papeschi
work_keys_str_mv AT papeschiag heterochromatinvariationinartemiapopulations
AT lipkop heterochromatinvariationinartemiapopulations
AT amatf heterochromatinvariationinartemiapopulations
AT cohenrg heterochromatinvariationinartemiapopulations
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