First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae
The capelin, Mallotus villosus (Osmeriformes, Osmeridae), is an ecological and commercial key component of the sub-arctic ichthyofauna. Here, we provide the first cytogenetic information on the species based on both conventional karyotyping and chromosomal mapping of 45S and 5S ribosomal genes throu...
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Sociedade Brasileira de Genética
2008
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ftjscielo:oai:scielo:S1415-47572008000200003 2023-05-15T14:55:04+02:00 First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae Ghigliotti,Laura Mazzei,Federico Ozouf-Costaz,Catherine Christiansen,Jørgen S. Fevolden,Svein-Erik Pisano,Eva 2008-01-01 text/html http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200003 en eng Sociedade Brasileira de Genética Genetics and Molecular Biology v.31 n.1 suppl.0 2008 capelin chromosomes Osmeridae ribosomal genes journal article 2008 ftjscielo 2015-10-26T23:06:59Z The capelin, Mallotus villosus (Osmeriformes, Osmeridae), is an ecological and commercial key component of the sub-arctic ichthyofauna. Here, we provide the first cytogenetic information on the species based on both conventional karyotyping and chromosomal mapping of 45S and 5S ribosomal genes through fluorescence in situ hybridization (FISH). The capelin genome displayed a diploid number of 54 with the karyotypic formula 26m/sm+28st/a and a fundamental number (FN) = 80. Both classes of ribosomal genes appeared to be spread out to multiple chromosomal locations, i.e. the 45S and 5S rDNA clusters were detected on six and seven chromosome pairs, respectively. A linked chromosomal organization of the major and minor ribosomal genes classes has been visualized in most of the rDNAs chromosomal locations. A comparative analysis of the available cytogenetic data for the family Osmeridae reveals diploid numbers higher than 48 and high fundamental numbers. This suggests that a rearranged karyotype is a shared feature within this family. Article in Journal/Newspaper Arctic SciELO Brazil (Scientific Electronic Library Online) Arctic |
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Open Polar |
collection |
SciELO Brazil (Scientific Electronic Library Online) |
op_collection_id |
ftjscielo |
language |
English |
topic |
capelin chromosomes Osmeridae ribosomal genes |
spellingShingle |
capelin chromosomes Osmeridae ribosomal genes Ghigliotti,Laura Mazzei,Federico Ozouf-Costaz,Catherine Christiansen,Jørgen S. Fevolden,Svein-Erik Pisano,Eva First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae |
topic_facet |
capelin chromosomes Osmeridae ribosomal genes |
description |
The capelin, Mallotus villosus (Osmeriformes, Osmeridae), is an ecological and commercial key component of the sub-arctic ichthyofauna. Here, we provide the first cytogenetic information on the species based on both conventional karyotyping and chromosomal mapping of 45S and 5S ribosomal genes through fluorescence in situ hybridization (FISH). The capelin genome displayed a diploid number of 54 with the karyotypic formula 26m/sm+28st/a and a fundamental number (FN) = 80. Both classes of ribosomal genes appeared to be spread out to multiple chromosomal locations, i.e. the 45S and 5S rDNA clusters were detected on six and seven chromosome pairs, respectively. A linked chromosomal organization of the major and minor ribosomal genes classes has been visualized in most of the rDNAs chromosomal locations. A comparative analysis of the available cytogenetic data for the family Osmeridae reveals diploid numbers higher than 48 and high fundamental numbers. This suggests that a rearranged karyotype is a shared feature within this family. |
format |
Article in Journal/Newspaper |
author |
Ghigliotti,Laura Mazzei,Federico Ozouf-Costaz,Catherine Christiansen,Jørgen S. Fevolden,Svein-Erik Pisano,Eva |
author_facet |
Ghigliotti,Laura Mazzei,Federico Ozouf-Costaz,Catherine Christiansen,Jørgen S. Fevolden,Svein-Erik Pisano,Eva |
author_sort |
Ghigliotti,Laura |
title |
First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae |
title_short |
First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae |
title_full |
First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae |
title_fullStr |
First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae |
title_full_unstemmed |
First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae |
title_sort |
first cytogenetic characterization of the sub-arctic marine fish mallotus villosus (müller, 1776), osmeriformes, osmeridae |
publisher |
Sociedade Brasileira de Genética |
publishDate |
2008 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200003 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Genetics and Molecular Biology v.31 n.1 suppl.0 2008 |
_version_ |
1766326850272886784 |