Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species
The number and distribution of the 18S-28S and 5S rRNA (rDNA) gene sequences were examined on mitotic chromosomes of six sturgeon species by two-colour in situ hybridization. Four of the six species, Huso huso, Acipenser stellatus, Acipenser sturio, and Acipenser ruthenus, with about 120 chromosomes...
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Online Access: | http://hdl.handle.net/11392/516737 https://doi.org/10.1139/g03-007 |
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ftunivferrarair:oai:iris.unife.it:11392/516737 2024-02-11T09:54:36+01:00 Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species FONTANA, Francesco CHICCA, Milvia ROSSI, Remigio LANFREDI M. CONGIU L. LEIS, Marilena Fontana, Francesco Lanfredi, M. Congiu, L. Leis, Marilena Chicca, Milvia Rossi, Remigio 2003 STAMPA http://hdl.handle.net/11392/516737 https://doi.org/10.1139/g03-007 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000183405000017 volume:46 issue:3 firstpage:473 lastpage:477 journal:GENOME http://hdl.handle.net/11392/516737 doi:10.1139/g03-007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0043204286 Acipenseriforme FISH Fish cytogenetic Ribosomal gene info:eu-repo/semantics/article 2003 ftunivferrarair https://doi.org/10.1139/g03-007 2024-01-24T17:33:47Z The number and distribution of the 18S-28S and 5S rRNA (rDNA) gene sequences were examined on mitotic chromosomes of six sturgeon species by two-colour in situ hybridization. Four of the six species, Huso huso, Acipenser stellatus, Acipenser sturio, and Acipenser ruthenus, with about 120 chromosomes, showed from six to eight 18S-28S rDNA signals, while 5S rDNA signals were on only one chromosome pair. The two species with 250-270 chromosomes, Acipenser baerii and Acipenser transmontanus, showed from 10 to 12 18S-28S sites and two chromosome pairs bearing 5S rDNA signals. In all examined species, the rather intense 5S rDNA signals apparently overlapped those of 18S-28S rDNA. These data support the diploid-tetraploid relationships between the two chromosome groups of sturgeons. The close association between the two rDNA families in species belonging to an ancestral fish order, such as Acipenseriformes, supports the hypothesis that the association represents a primitive condition. Article in Journal/Newspaper Acipenser baerii Università degli Studi di Ferrara: CINECA IRIS Genome 46 3 473 477 |
institution |
Open Polar |
collection |
Università degli Studi di Ferrara: CINECA IRIS |
op_collection_id |
ftunivferrarair |
language |
English |
topic |
Acipenseriforme FISH Fish cytogenetic Ribosomal gene |
spellingShingle |
Acipenseriforme FISH Fish cytogenetic Ribosomal gene FONTANA, Francesco CHICCA, Milvia ROSSI, Remigio LANFREDI M. CONGIU L. LEIS, Marilena Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species |
topic_facet |
Acipenseriforme FISH Fish cytogenetic Ribosomal gene |
description |
The number and distribution of the 18S-28S and 5S rRNA (rDNA) gene sequences were examined on mitotic chromosomes of six sturgeon species by two-colour in situ hybridization. Four of the six species, Huso huso, Acipenser stellatus, Acipenser sturio, and Acipenser ruthenus, with about 120 chromosomes, showed from six to eight 18S-28S rDNA signals, while 5S rDNA signals were on only one chromosome pair. The two species with 250-270 chromosomes, Acipenser baerii and Acipenser transmontanus, showed from 10 to 12 18S-28S sites and two chromosome pairs bearing 5S rDNA signals. In all examined species, the rather intense 5S rDNA signals apparently overlapped those of 18S-28S rDNA. These data support the diploid-tetraploid relationships between the two chromosome groups of sturgeons. The close association between the two rDNA families in species belonging to an ancestral fish order, such as Acipenseriformes, supports the hypothesis that the association represents a primitive condition. |
author2 |
Fontana, Francesco Lanfredi, M. Congiu, L. Leis, Marilena Chicca, Milvia Rossi, Remigio |
format |
Article in Journal/Newspaper |
author |
FONTANA, Francesco CHICCA, Milvia ROSSI, Remigio LANFREDI M. CONGIU L. LEIS, Marilena |
author_facet |
FONTANA, Francesco CHICCA, Milvia ROSSI, Remigio LANFREDI M. CONGIU L. LEIS, Marilena |
author_sort |
FONTANA, Francesco |
title |
Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species |
title_short |
Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species |
title_full |
Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species |
title_fullStr |
Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species |
title_full_unstemmed |
Chromosomal mapping of 18S-28S and 5S rRNA genes by two-colour fluorescent in situ hybridization in six sturgeon species |
title_sort |
chromosomal mapping of 18s-28s and 5s rrna genes by two-colour fluorescent in situ hybridization in six sturgeon species |
publishDate |
2003 |
url |
http://hdl.handle.net/11392/516737 https://doi.org/10.1139/g03-007 |
genre |
Acipenser baerii |
genre_facet |
Acipenser baerii |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000183405000017 volume:46 issue:3 firstpage:473 lastpage:477 journal:GENOME http://hdl.handle.net/11392/516737 doi:10.1139/g03-007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0043204286 |
op_doi |
https://doi.org/10.1139/g03-007 |
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Genome |
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46 |
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3 |
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473 |
op_container_end_page |
477 |
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1790595865350504448 |