Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda)
AbstractLobsters are ubiquitous, economically important decapod crustaceans with apparently conflicting evolutionary relationships. Here, we describe the chromosomal location of the major (45S rDNA) and minor (5S rDNA) ribosomal gene families in four species of Astacidea and five of Achelata, using...
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2023
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Online Access: | https://doi.org/10.1080/24750263.2023.2217188 https://doaj.org/article/00b083432b9d4d4c9c194cd6085ef132 |
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ftdoajarticles:oai:doaj.org/article:00b083432b9d4d4c9c194cd6085ef132 2023-07-30T04:04:01+02:00 Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda) S. Salvadori F. Deidda L. Carugati R. Melis E. Costa M. Sibiriu E. Coluccia 2023-07-01T00:00:00Z https://doi.org/10.1080/24750263.2023.2217188 https://doaj.org/article/00b083432b9d4d4c9c194cd6085ef132 EN eng Taylor & Francis Group https://www.tandfonline.com/doi/10.1080/24750263.2023.2217188 https://doaj.org/toc/2475-0263 doi:10.1080/24750263.2023.2217188 2475-0263 https://doaj.org/article/00b083432b9d4d4c9c194cd6085ef132 The European Zoological Journal, Vol 90, Iss 1, Pp 443-453 (2023) Decapoda FISH (TTAGG)n interstitial telomeric sequences (ITSs) 28S rDNA 5S rDNA Zoology QL1-991 article 2023 ftdoajarticles https://doi.org/10.1080/24750263.2023.2217188 2023-07-16T00:37:51Z AbstractLobsters are ubiquitous, economically important decapod crustaceans with apparently conflicting evolutionary relationships. Here, we describe the chromosomal location of the major (45S rDNA) and minor (5S rDNA) ribosomal gene families in four species of Astacidea and five of Achelata, using two-color FISH. The major ribosomal family is located in 4–16 sites per diploid chromosome set, with Nephrops norvegicus (Nephropidae) showing the highest number described so far in Decapoda. The 5S rDNA is located in two sites in eight species; only in the crayfish Procambarus clarkii the 5S FISH signals were detected in four sites together with additional weaker signals. Furthermore, in N. norvegicus the minor ribosomal genes are syntenic with one major ribosomal cluster. Moreover, we located by two-color FISH the pentanucleotide (TTAGG)n telomeric repeat in the Nephropidae studied, showing the occurrence of a colocalization with 45S ribosomal sequences in Homarus gammarus. The comparison of chromosomal locations of repetitive sequences in Mediterranean, Atlantic, and South African lobster species as well as in marine and freshwater ones provides information on chromosomal evolution and cytotaxonomy of Decapoda. Article in Journal/Newspaper Homarus gammarus Directory of Open Access Journals: DOAJ Articles The European Zoological Journal 90 1 443 453 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Decapoda FISH (TTAGG)n interstitial telomeric sequences (ITSs) 28S rDNA 5S rDNA Zoology QL1-991 |
spellingShingle |
Decapoda FISH (TTAGG)n interstitial telomeric sequences (ITSs) 28S rDNA 5S rDNA Zoology QL1-991 S. Salvadori F. Deidda L. Carugati R. Melis E. Costa M. Sibiriu E. Coluccia Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda) |
topic_facet |
Decapoda FISH (TTAGG)n interstitial telomeric sequences (ITSs) 28S rDNA 5S rDNA Zoology QL1-991 |
description |
AbstractLobsters are ubiquitous, economically important decapod crustaceans with apparently conflicting evolutionary relationships. Here, we describe the chromosomal location of the major (45S rDNA) and minor (5S rDNA) ribosomal gene families in four species of Astacidea and five of Achelata, using two-color FISH. The major ribosomal family is located in 4–16 sites per diploid chromosome set, with Nephrops norvegicus (Nephropidae) showing the highest number described so far in Decapoda. The 5S rDNA is located in two sites in eight species; only in the crayfish Procambarus clarkii the 5S FISH signals were detected in four sites together with additional weaker signals. Furthermore, in N. norvegicus the minor ribosomal genes are syntenic with one major ribosomal cluster. Moreover, we located by two-color FISH the pentanucleotide (TTAGG)n telomeric repeat in the Nephropidae studied, showing the occurrence of a colocalization with 45S ribosomal sequences in Homarus gammarus. The comparison of chromosomal locations of repetitive sequences in Mediterranean, Atlantic, and South African lobster species as well as in marine and freshwater ones provides information on chromosomal evolution and cytotaxonomy of Decapoda. |
format |
Article in Journal/Newspaper |
author |
S. Salvadori F. Deidda L. Carugati R. Melis E. Costa M. Sibiriu E. Coluccia |
author_facet |
S. Salvadori F. Deidda L. Carugati R. Melis E. Costa M. Sibiriu E. Coluccia |
author_sort |
S. Salvadori |
title |
Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda) |
title_short |
Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda) |
title_full |
Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda) |
title_fullStr |
Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda) |
title_full_unstemmed |
Chromosomal mapping of ribosomal clusters and telomeric sequences (TTAGG)n in nine species of lobsters (Crustacea, Decapoda) |
title_sort |
chromosomal mapping of ribosomal clusters and telomeric sequences (ttagg)n in nine species of lobsters (crustacea, decapoda) |
publisher |
Taylor & Francis Group |
publishDate |
2023 |
url |
https://doi.org/10.1080/24750263.2023.2217188 https://doaj.org/article/00b083432b9d4d4c9c194cd6085ef132 |
genre |
Homarus gammarus |
genre_facet |
Homarus gammarus |
op_source |
The European Zoological Journal, Vol 90, Iss 1, Pp 443-453 (2023) |
op_relation |
https://www.tandfonline.com/doi/10.1080/24750263.2023.2217188 https://doaj.org/toc/2475-0263 doi:10.1080/24750263.2023.2217188 2475-0263 https://doaj.org/article/00b083432b9d4d4c9c194cd6085ef132 |
op_doi |
https://doi.org/10.1080/24750263.2023.2217188 |
container_title |
The European Zoological Journal |
container_volume |
90 |
container_issue |
1 |
container_start_page |
443 |
op_container_end_page |
453 |
_version_ |
1772815180150865920 |