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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ftdoajarticles:oai:doaj.org/article:50224d0c16f24bec95db3baa0fc6f65f 2023-05-15T14:55:05+02:00 First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae Laura Ghigliotti Federico Mazzei Catherine Ozouf-Costaz Jørgen S. Christiansen Svein-Erik Fevolden Eva Pisano 2008-01-01T00:00:00Z https://doi.org/10.1590/S1415-47572008000200003 https://doaj.org/article/50224d0c16f24bec95db3baa0fc6f65f EN eng Sociedade Brasileira de Genética http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200003 https://doaj.org/toc/1415-4757 https://doaj.org/toc/1678-4685 doi:10.1590/S1415-47572008000200003 1415-4757 1678-4685 https://doaj.org/article/50224d0c16f24bec95db3baa0fc6f65f Genetics and Molecular Biology, Vol 31, Iss 1, Pp 180-187 (2008) capelin chromosomes Osmeridae ribosomal genes Genetics QH426-470 article 2008 ftdoajarticles https://doi.org/10.1590/S1415-47572008000200003 2023-01-08T01:32:09Z 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 Directory of Open Access Journals: DOAJ Articles Arctic Genetics and Molecular Biology 31 1 suppl 180 187 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
capelin chromosomes Osmeridae ribosomal genes Genetics QH426-470 |
spellingShingle |
capelin chromosomes Osmeridae ribosomal genes Genetics QH426-470 Laura Ghigliotti Federico Mazzei Catherine Ozouf-Costaz Jørgen S. Christiansen Svein-Erik Fevolden Eva Pisano First cytogenetic characterization of the sub-arctic marine fish Mallotus villosus (Müller, 1776), Osmeriformes, Osmeridae |
topic_facet |
capelin chromosomes Osmeridae ribosomal genes Genetics QH426-470 |
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 |
Laura Ghigliotti Federico Mazzei Catherine Ozouf-Costaz Jørgen S. Christiansen Svein-Erik Fevolden Eva Pisano |
author_facet |
Laura Ghigliotti Federico Mazzei Catherine Ozouf-Costaz Jørgen S. Christiansen Svein-Erik Fevolden Eva Pisano |
author_sort |
Laura Ghigliotti |
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 |
https://doi.org/10.1590/S1415-47572008000200003 https://doaj.org/article/50224d0c16f24bec95db3baa0fc6f65f |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Genetics and Molecular Biology, Vol 31, Iss 1, Pp 180-187 (2008) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200003 https://doaj.org/toc/1415-4757 https://doaj.org/toc/1678-4685 doi:10.1590/S1415-47572008000200003 1415-4757 1678-4685 https://doaj.org/article/50224d0c16f24bec95db3baa0fc6f65f |
op_doi |
https://doi.org/10.1590/S1415-47572008000200003 |
container_title |
Genetics and Molecular Biology |
container_volume |
31 |
container_issue |
1 suppl |
container_start_page |
180 |
op_container_end_page |
187 |
_version_ |
1766326878447075328 |