Cytogenetic study of Ostrea conchaphila (Mollusca : Bivalvia) and comparative karyological analysis within Ostreinae

Type Article
Date 2002-12
Language English
Author(s) Leitao Alexandra1, 2, Chaves Raquel2, Santos Sara2, Boudry PierreORCID1, Guedes Pinto Henrique2, Thiriot Quievreux Catherine3
Affiliation(s) 1 : Univ Paris 06, Observ Oceanol, CNRS, F-06230 Villefranche Sur Mer, France.
2 : IFREMER, Stn Inst Francais Rech & Exploitat Mer, Lab Genet & Pathol, F-17390 La Tremblade, France.
3 : UTAD, ICETA, Dept Genet & Biotecnol, Vila Real, Portugal.
Source Journal of Shellfish Research (0730-8000) (The National Shellfisheries Association), 2002-12 , Vol. 21 , N. 2 , P. 685-690
WOS© Times Cited 14
Keyword(s) Ostreinae, Cytotaxonomy, Cytogenetics, Ostrea conchaphila
Abstract Chromosome preparations of the Olympia oyster Ostrea conchaphila Carpenter were studied using conventional Giemsa, silver staining, and C-banding techniques. The karyotype consists of six metacentric (1, 2, 4, 6, 8, and 10) and four submetacentric (3, 5, 7, 9) chromosome pairs. The silver-stained nucleolus organizer regions (Ag-NORs) were terminally located on the short arms of the submetacentric pair 5 (56% of cases) and on the long arms of submetacentric pair 7 (6% of cases). Constitutive heterochromatin was observed as telomeric C-bands on the short arm of the NOR-bearing chromosome pair 5 and as centromeric blocks of several chromosome pairs. Comparative analysis of patterns of karyotype, Ag-NORs, and C-bands of this species and of five other flat oysters, Ostrea angasi, O. chilensis, O. denselamellosa, O. edulis, and O. puelchana, for which data have been previously published, were performed, allowing the inference of cytotaxonomic relationships within Ostreinae.
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Leitao Alexandra, Chaves Raquel, Santos Sara, Boudry Pierre, Guedes Pinto Henrique, Thiriot Quievreux Catherine (2002). Cytogenetic study of Ostrea conchaphila (Mollusca : Bivalvia) and comparative karyological analysis within Ostreinae. Journal of Shellfish Research, 21(2), 685-690. Open Access version :