Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas
The G-banding technique was performed on aneuploid karyotypes from gill tissue of the Pacific oyster, Crassostrea gigas, to assess whether chromosome losses could be explained by differential chromosomal susceptibility and to clarify the negative correlation between aneuploidy and growth rate previo...
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ftarchimer:oai:archimer.ifremer.fr:742 2023-05-15T15:57:44+02:00 Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas Leitao, Alexandra Boudry, Pierre Thiriot Quievreux, Catherine 2001-08 application/pdf https://archimer.ifremer.fr/doc/2001/publication-742.pdf https://archimer.ifremer.fr/doc/00000/742/ eng eng NRC Research Press https://archimer.ifremer.fr/doc/2001/publication-742.pdf https://archimer.ifremer.fr/doc/00000/742/ 2001 NRC info:eu-repo/semantics/openAccess restricted use Génome (0831-2796) (NRC Research Press), 2001-08 , Vol. 44 , N. 4 , P. 735-737 Oyster Karyotype G banding Growth Aneuploidy Huître Caryotype Bandes G Croissance Aneuploïdie text Publication info:eu-repo/semantics/article 2001 ftarchimer 2021-09-23T20:13:24Z The G-banding technique was performed on aneuploid karyotypes from gill tissue of the Pacific oyster, Crassostrea gigas, to assess whether chromosome losses could be explained by differential chromosomal susceptibility and to clarify the negative correlation between aneuploidy and growth rate previously reported in different populations of this oyster. The study of 95 G-banded aneuploid karyotypes showed that only 4 of the 10 chromosome pairs (viz. 1, 5, 9, and 10) of C. gigas were affected by the loss of one homologous chromosome. Pairs 1, 9, and 10, which were lost in 56, 33, and 44% of cases, respectively, may be considered to be differentially affected. Hypotheses on this differential chromosomal susceptibility are discussed. La technique de marquage en bandes G a été utilisée sur des caryotypes aneuploïdes, à partir de tissu branchial de l'Huître Crassostrea gigas, pour déterminer si les pertes de chromosomes pouvaient correspondre à une prédisposition chromosomique différentielle et expliquer la corrélation négative entre l'aneuploïdie et le taux de croissance observée précédemment dans plusieurs populations de cette espèce. L'étude de 95 caryotypes aneuploïdes marqués en bandes G a montré que seulement 4 parmi les 10 paires de chromosomes de C. gigas (1, 5, 9 et 10) étaient affectés par la perte d'un des deux homologues. Les paires 1, 9 et 10, avec des pourcentages de 56, 33 et 44% respectivement, peuvent être considérées comme préférentiellement affectées. Des hypothèses sur cette prédisposition sont discutées. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Pacific |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Oyster Karyotype G banding Growth Aneuploidy Huître Caryotype Bandes G Croissance Aneuploïdie |
spellingShingle |
Oyster Karyotype G banding Growth Aneuploidy Huître Caryotype Bandes G Croissance Aneuploïdie Leitao, Alexandra Boudry, Pierre Thiriot Quievreux, Catherine Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas |
topic_facet |
Oyster Karyotype G banding Growth Aneuploidy Huître Caryotype Bandes G Croissance Aneuploïdie |
description |
The G-banding technique was performed on aneuploid karyotypes from gill tissue of the Pacific oyster, Crassostrea gigas, to assess whether chromosome losses could be explained by differential chromosomal susceptibility and to clarify the negative correlation between aneuploidy and growth rate previously reported in different populations of this oyster. The study of 95 G-banded aneuploid karyotypes showed that only 4 of the 10 chromosome pairs (viz. 1, 5, 9, and 10) of C. gigas were affected by the loss of one homologous chromosome. Pairs 1, 9, and 10, which were lost in 56, 33, and 44% of cases, respectively, may be considered to be differentially affected. Hypotheses on this differential chromosomal susceptibility are discussed. La technique de marquage en bandes G a été utilisée sur des caryotypes aneuploïdes, à partir de tissu branchial de l'Huître Crassostrea gigas, pour déterminer si les pertes de chromosomes pouvaient correspondre à une prédisposition chromosomique différentielle et expliquer la corrélation négative entre l'aneuploïdie et le taux de croissance observée précédemment dans plusieurs populations de cette espèce. L'étude de 95 caryotypes aneuploïdes marqués en bandes G a montré que seulement 4 parmi les 10 paires de chromosomes de C. gigas (1, 5, 9 et 10) étaient affectés par la perte d'un des deux homologues. Les paires 1, 9 et 10, avec des pourcentages de 56, 33 et 44% respectivement, peuvent être considérées comme préférentiellement affectées. Des hypothèses sur cette prédisposition sont discutées. |
format |
Article in Journal/Newspaper |
author |
Leitao, Alexandra Boudry, Pierre Thiriot Quievreux, Catherine |
author_facet |
Leitao, Alexandra Boudry, Pierre Thiriot Quievreux, Catherine |
author_sort |
Leitao, Alexandra |
title |
Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas |
title_short |
Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas |
title_full |
Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas |
title_fullStr |
Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas |
title_full_unstemmed |
Evidence of differential chromosome loss in aneuploid karyotypes of the Pacific oyster, Crassostrea gigas |
title_sort |
evidence of differential chromosome loss in aneuploid karyotypes of the pacific oyster, crassostrea gigas |
publisher |
NRC Research Press |
publishDate |
2001 |
url |
https://archimer.ifremer.fr/doc/2001/publication-742.pdf https://archimer.ifremer.fr/doc/00000/742/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Génome (0831-2796) (NRC Research Press), 2001-08 , Vol. 44 , N. 4 , P. 735-737 |
op_relation |
https://archimer.ifremer.fr/doc/2001/publication-742.pdf https://archimer.ifremer.fr/doc/00000/742/ |
op_rights |
2001 NRC info:eu-repo/semantics/openAccess restricted use |
_version_ |
1766393435468595200 |