Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea)
Chromosome number and morphology were studied in gonadal tissue from eight euphausiid species, using an air-drying technique and Giemsa staining. Among Mediterranean species, haploid chromosome numbers were: n = 19 in Euphausia hemigibba, Euphausia brevis, and Nematoscelis megalops, n = 18 in Euphau...
Published in: | Journal of Crustacean Biology |
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Language: | English |
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1998
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Online Access: | https://hal.science/hal-03479820 https://doi.org/10.2307/1549322 |
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ftinsu:oai:HAL:hal-03479820v1 2024-02-11T09:58:16+01:00 Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea) Thiriot-Quievreux, C Leitao, A Cuzin-Roudy, J Océanographie Biologique et Écologie du Plancton Marin (LOBEPM) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Inconnu 1998 https://hal.science/hal-03479820 https://doi.org/10.2307/1549322 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.2307/1549322 hal-03479820 https://hal.science/hal-03479820 doi:10.2307/1549322 JOURNAL OF CRUSTACEAN BIOLOGY https://hal.science/hal-03479820 JOURNAL OF CRUSTACEAN BIOLOGY, 1998, 18 (2), pp.290-297. ⟨10.2307/1549322⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 1998 ftinsu https://doi.org/10.2307/1549322 2024-01-24T17:30:36Z Chromosome number and morphology were studied in gonadal tissue from eight euphausiid species, using an air-drying technique and Giemsa staining. Among Mediterranean species, haploid chromosome numbers were: n = 19 in Euphausia hemigibba, Euphausia brevis, and Nematoscelis megalops, n = 18 in Euphausia krohni, and n = 11 in Nyctiphanes couchi. Among Antarctic species, haploid chromosome numbers were: n = 17 in Euphausia superba, n = 20 in Thysanoessa macrura, and n = 13 in Thysanoessa vicina. Chromosome morphology was further studied for three species after chromosome measurements: Euphausia hemigibba karyotype showed 17 metacentric and 2 submetacentric chromosome pairs, Euphausia krohni 17 metacentric and 1 submetacentric chromosome pairs, and Nematoscelis megalops 17 metacentric and 2 submetacentric chromosome pairs. Three species sharing the same chromosome number of n = 19, i.e., Euphausia hemigibba, Nematoscelis megalops, and Meganyctiphanes norvegica were distinguished by a different slope of the decrease in chromosome size and by the presence/absence of metacentric and submetacentric chromosome pairs differing in number and position. Chromosome morphology of other species was derived from the observation of meiotic metaphases II. A majority of metacentric chromosomes was also displayed. Cytotaxonomic differences in haploid chromosome number allow the discrimination of morphologically neighboring sympatric species (e.g., Meganyctiphanes norvegica and Nyctiphanes couchi; Thysanoessa vicina and T. macrura). Euphausiids share common chromosomal features which clearly separate them from other eucarids, i.e., a narrow range of haploid chromosome number, a large chromosome size, and a majority of metacentric chromosomes. Article in Journal/Newspaper Antarc* Antarctic Euphausia superba Meganyctiphanes norvegica Thysanoessa macrura Institut national des sciences de l'Univers: HAL-INSU Antarctic Journal of Crustacean Biology 18 2 290 297 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Thiriot-Quievreux, C Leitao, A Cuzin-Roudy, J Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea) |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
Chromosome number and morphology were studied in gonadal tissue from eight euphausiid species, using an air-drying technique and Giemsa staining. Among Mediterranean species, haploid chromosome numbers were: n = 19 in Euphausia hemigibba, Euphausia brevis, and Nematoscelis megalops, n = 18 in Euphausia krohni, and n = 11 in Nyctiphanes couchi. Among Antarctic species, haploid chromosome numbers were: n = 17 in Euphausia superba, n = 20 in Thysanoessa macrura, and n = 13 in Thysanoessa vicina. Chromosome morphology was further studied for three species after chromosome measurements: Euphausia hemigibba karyotype showed 17 metacentric and 2 submetacentric chromosome pairs, Euphausia krohni 17 metacentric and 1 submetacentric chromosome pairs, and Nematoscelis megalops 17 metacentric and 2 submetacentric chromosome pairs. Three species sharing the same chromosome number of n = 19, i.e., Euphausia hemigibba, Nematoscelis megalops, and Meganyctiphanes norvegica were distinguished by a different slope of the decrease in chromosome size and by the presence/absence of metacentric and submetacentric chromosome pairs differing in number and position. Chromosome morphology of other species was derived from the observation of meiotic metaphases II. A majority of metacentric chromosomes was also displayed. Cytotaxonomic differences in haploid chromosome number allow the discrimination of morphologically neighboring sympatric species (e.g., Meganyctiphanes norvegica and Nyctiphanes couchi; Thysanoessa vicina and T. macrura). Euphausiids share common chromosomal features which clearly separate them from other eucarids, i.e., a narrow range of haploid chromosome number, a large chromosome size, and a majority of metacentric chromosomes. |
author2 |
Océanographie Biologique et Écologie du Plancton Marin (LOBEPM) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Inconnu |
format |
Article in Journal/Newspaper |
author |
Thiriot-Quievreux, C Leitao, A Cuzin-Roudy, J |
author_facet |
Thiriot-Quievreux, C Leitao, A Cuzin-Roudy, J |
author_sort |
Thiriot-Quievreux, C |
title |
Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea) |
title_short |
Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea) |
title_full |
Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea) |
title_fullStr |
Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea) |
title_full_unstemmed |
Chromosome diversity in Mediterranean and Antarctic euphausiid species (Euphausiacea) |
title_sort |
chromosome diversity in mediterranean and antarctic euphausiid species (euphausiacea) |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.science/hal-03479820 https://doi.org/10.2307/1549322 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Euphausia superba Meganyctiphanes norvegica Thysanoessa macrura |
genre_facet |
Antarc* Antarctic Euphausia superba Meganyctiphanes norvegica Thysanoessa macrura |
op_source |
JOURNAL OF CRUSTACEAN BIOLOGY https://hal.science/hal-03479820 JOURNAL OF CRUSTACEAN BIOLOGY, 1998, 18 (2), pp.290-297. ⟨10.2307/1549322⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.2307/1549322 hal-03479820 https://hal.science/hal-03479820 doi:10.2307/1549322 |
op_doi |
https://doi.org/10.2307/1549322 |
container_title |
Journal of Crustacean Biology |
container_volume |
18 |
container_issue |
2 |
container_start_page |
290 |
op_container_end_page |
297 |
_version_ |
1790593881027379200 |