Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca)

Artemia brine shrimps inhabit hypersaline ecosystems all over the world except Antarctica. In South America two bisexual diploid species are encountered: Artemia franciscana Kellogg distributed along America and Artemia persimilis Piccinelli and Prosdocimi restricted to Argentina and a few Chilean l...

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Detalles Bibliográficos
Autores principales: Lipko, P., Papeschi, A.G., Cohen, R.G.
Formato: JOUR
Materias:
C-banding
Fluorescent banding
Heterochromatin
Meiosis
Mitosis
Anostraca
Artemia
Artemia franciscana
Artemia persimilis
Crustacea
Scombridae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00087114_v57_n3_p283_Lipko
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00087114_v57_n3_p283_Lipko
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spelling todo:paper_00087114_v57_n3_p283_Lipko2023-10-03T14:07:51Z Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca) Lipko, P. Papeschi, A.G. Cohen, R.G. C-banding Fluorescent banding Heterochromatin Meiosis Mitosis Anostraca Artemia Artemia franciscana Artemia persimilis Crustacea Scombridae Artemia brine shrimps inhabit hypersaline ecosystems all over the world except Antarctica. In South America two bisexual diploid species are encountered: Artemia franciscana Kellogg distributed along America and Artemia persimilis Piccinelli and Prosdocimi restricted to Argentina and a few Chilean localities. A. franciscana was recently cited for the first time in our country and our results suggested a possible hybridization in Las Tunas Lagoon (Córdoba province) between both species. In the present work four new Argentinean populations of Artemia have been cytogenetically analyzed by conventional staining, silver staining, and C and DAPI banding. The populations Salina La Antigua (La Rioja province), Salinas Grandes (Córdoba province) and Pampa de las Salinas (San Luis province) gave similar results compatible with A. franciscana (2n=42, n=21). Conversely, Salitral de la Vidriera population (Buenos Aires province) would correspond to A. persimilis (2n=44). While in Salitral de la Vidriera only one or two small chromocenters C positive and DAPI bright were detected, in Pampa de las Salinas and Salinas Grandes many of them were observed. Nevertheless, both populations presented less heterochromatin than the Artemia franciscana reference strain from Great Salt Lake (USA). These results constitute further evidence to the occurrence of heterochromatin variations not only between both species but also within each one. Last but not least, with the present contribution A. franciscana is now cited in three new Argentinean localities. © 2004 Taylor & Francis Group, LLC. Fil:Lipko, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Papeschi, A.G. 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_v57_n3_p283_Lipko
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic C-banding
Fluorescent banding
Heterochromatin
Meiosis
Mitosis
Anostraca
Artemia
Artemia franciscana
Artemia persimilis
Crustacea
Scombridae
spellingShingle C-banding
Fluorescent banding
Heterochromatin
Meiosis
Mitosis
Anostraca
Artemia
Artemia franciscana
Artemia persimilis
Crustacea
Scombridae
Lipko, P.
Papeschi, A.G.
Cohen, R.G.
Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca)
topic_facet C-banding
Fluorescent banding
Heterochromatin
Meiosis
Mitosis
Anostraca
Artemia
Artemia franciscana
Artemia persimilis
Crustacea
Scombridae
description Artemia brine shrimps inhabit hypersaline ecosystems all over the world except Antarctica. In South America two bisexual diploid species are encountered: Artemia franciscana Kellogg distributed along America and Artemia persimilis Piccinelli and Prosdocimi restricted to Argentina and a few Chilean localities. A. franciscana was recently cited for the first time in our country and our results suggested a possible hybridization in Las Tunas Lagoon (Córdoba province) between both species. In the present work four new Argentinean populations of Artemia have been cytogenetically analyzed by conventional staining, silver staining, and C and DAPI banding. The populations Salina La Antigua (La Rioja province), Salinas Grandes (Córdoba province) and Pampa de las Salinas (San Luis province) gave similar results compatible with A. franciscana (2n=42, n=21). Conversely, Salitral de la Vidriera population (Buenos Aires province) would correspond to A. persimilis (2n=44). While in Salitral de la Vidriera only one or two small chromocenters C positive and DAPI bright were detected, in Pampa de las Salinas and Salinas Grandes many of them were observed. Nevertheless, both populations presented less heterochromatin than the Artemia franciscana reference strain from Great Salt Lake (USA). These results constitute further evidence to the occurrence of heterochromatin variations not only between both species but also within each one. Last but not least, with the present contribution A. franciscana is now cited in three new Argentinean localities. © 2004 Taylor & Francis Group, LLC.
format JOUR
author Lipko, P.
Papeschi, A.G.
Cohen, R.G.
author_facet Lipko, P.
Papeschi, A.G.
Cohen, R.G.
author_sort Lipko, P.
title Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca)
title_short Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca)
title_full Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca)
title_fullStr Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca)
title_full_unstemmed Cytogenetic analysis of four argentinean populations of Artemia (Crustacea Branchipoda: Anostraca)
title_sort cytogenetic analysis of four argentinean populations of artemia (crustacea branchipoda: anostraca)
url http://hdl.handle.net/20.500.12110/paper_00087114_v57_n3_p283_Lipko
work_keys_str_mv AT lipkop cytogeneticanalysisoffourargentineanpopulationsofartemiacrustaceabranchipodaanostraca
AT papeschiag cytogeneticanalysisoffourargentineanpopulationsofartemiacrustaceabranchipodaanostraca
AT cohenrg cytogeneticanalysisoffourargentineanpopulationsofartemiacrustaceabranchipodaanostraca
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