Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei)
Antarctic plunderfishes (Notothenioidei, Artedidraconidae) are important components of theSouthern Ocean fish fauna. As a contribution to the Victoria Land Transect Project, we performed a cytogenetic analysis of six species from three of the four artedidraconid genera, Artedidraco glareobarbatus, A...
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2010
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Online Access: | http://hdl.handle.net/11567/223792 https://doi.org/10.1017/S0954102010000660 |
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ftunivgenova:oai:iris.unige.it:11567/223792 2024-02-11T09:56:23+01:00 Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei) GHIGLIOTTI, LAURA FERRANDO, SARA PISANO, EVA T. J. NEAR M. VACCHI Ghigliotti, Laura T. J., Near Ferrando, Sara M., Vacchi Pisano, Eva 2010 STAMPA http://hdl.handle.net/11567/223792 https://doi.org/10.1017/S0954102010000660 eng eng Cambridge University Press country:USA place:New York info:eu-repo/semantics/altIdentifier/wos/WOS:000285470300022 volume:22 (6) firstpage:805 lastpage:814 numberofpages:10 journal:ANTARCTIC SCIENCE http://hdl.handle.net/11567/223792 doi:10.1017/S0954102010000660 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79951693419 info:eu-repo/semantics/article 2010 ftunivgenova https://doi.org/10.1017/S0954102010000660 2024-01-24T17:34:20Z Antarctic plunderfishes (Notothenioidei, Artedidraconidae) are important components of theSouthern Ocean fish fauna. As a contribution to the Victoria Land Transect Project, we performed a cytogenetic analysis of six species from three of the four artedidraconid genera, Artedidraco glareobarbatus, A. orianae, A. skottsbergi, A. shackletoni, Histiodraco velifer, and Pogonophryne sp. We investigated the species-specific cytogenetic features and highlighted patterns of chromosomal evolutionary change using a molecular phylogeny based on mitochondrial and nuclear genes. Despite a conserved diploid number, some important karyotypic traits account for major differences among artedidraconid species. Specific cytogenetic features, including the chromosomal organization of ribosomal genes and the occurrence of sex chromosomes, are characteristics of A. skottsbergi, making this species distinct among those studied. These chromosomal peculiarities are consistent with the phylogenetic hypothesis resolving A. skottsbergi as the sister lineage of all other Artedidraconidae. A karyological similarity was found between A. glareobarbatus and A. shackletoni consistent with their inferred sister species relationship in the phylogeny. The results indicate that artedidraconids are not conservative in their genomic organization at the chromosomal level and provide new evidence for the degree of biological diversity in this notothenioid group. Article in Journal/Newspaper Antarc* Antarctic Victoria Land Università degli Studi di Genova: CINECA IRIS Antarctic The Antarctic Victoria Land Antarctic Science 22 6 805 814 |
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Università degli Studi di Genova: CINECA IRIS |
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ftunivgenova |
language |
English |
description |
Antarctic plunderfishes (Notothenioidei, Artedidraconidae) are important components of theSouthern Ocean fish fauna. As a contribution to the Victoria Land Transect Project, we performed a cytogenetic analysis of six species from three of the four artedidraconid genera, Artedidraco glareobarbatus, A. orianae, A. skottsbergi, A. shackletoni, Histiodraco velifer, and Pogonophryne sp. We investigated the species-specific cytogenetic features and highlighted patterns of chromosomal evolutionary change using a molecular phylogeny based on mitochondrial and nuclear genes. Despite a conserved diploid number, some important karyotypic traits account for major differences among artedidraconid species. Specific cytogenetic features, including the chromosomal organization of ribosomal genes and the occurrence of sex chromosomes, are characteristics of A. skottsbergi, making this species distinct among those studied. These chromosomal peculiarities are consistent with the phylogenetic hypothesis resolving A. skottsbergi as the sister lineage of all other Artedidraconidae. A karyological similarity was found between A. glareobarbatus and A. shackletoni consistent with their inferred sister species relationship in the phylogeny. The results indicate that artedidraconids are not conservative in their genomic organization at the chromosomal level and provide new evidence for the degree of biological diversity in this notothenioid group. |
author2 |
Ghigliotti, Laura T. J., Near Ferrando, Sara M., Vacchi Pisano, Eva |
format |
Article in Journal/Newspaper |
author |
GHIGLIOTTI, LAURA FERRANDO, SARA PISANO, EVA T. J. NEAR M. VACCHI |
spellingShingle |
GHIGLIOTTI, LAURA FERRANDO, SARA PISANO, EVA T. J. NEAR M. VACCHI Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei) |
author_facet |
GHIGLIOTTI, LAURA FERRANDO, SARA PISANO, EVA T. J. NEAR M. VACCHI |
author_sort |
GHIGLIOTTI, LAURA |
title |
Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei) |
title_short |
Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei) |
title_full |
Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei) |
title_fullStr |
Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei) |
title_full_unstemmed |
Cytogenetic diversity of the Antarctic plunderfishes of the family Artedidraconidae (Notothenioidei) |
title_sort |
cytogenetic diversity of the antarctic plunderfishes of the family artedidraconidae (notothenioidei) |
publisher |
Cambridge University Press |
publishDate |
2010 |
url |
http://hdl.handle.net/11567/223792 https://doi.org/10.1017/S0954102010000660 |
geographic |
Antarctic The Antarctic Victoria Land |
geographic_facet |
Antarctic The Antarctic Victoria Land |
genre |
Antarc* Antarctic Victoria Land |
genre_facet |
Antarc* Antarctic Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000285470300022 volume:22 (6) firstpage:805 lastpage:814 numberofpages:10 journal:ANTARCTIC SCIENCE http://hdl.handle.net/11567/223792 doi:10.1017/S0954102010000660 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79951693419 |
op_doi |
https://doi.org/10.1017/S0954102010000660 |
container_title |
Antarctic Science |
container_volume |
22 |
container_issue |
6 |
container_start_page |
805 |
op_container_end_page |
814 |
_version_ |
1790602683762081792 |