Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia)
International audience The aim of this study is to describe the early stages of spermatogenesis of the Pacific oyster Crassostrea gigas using both light and electron microscopy. The gonad is formed by gonadal tubules invaginated in a connective tissue constituting a storage tissue. Myoepithelial cel...
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ftnormandieuniv:oai:HAL:hal-02296554v1 2024-04-28T08:16:22+00:00 Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia) Franco, A. Heude Berthelin, C. Goux, D. Sourdaine, P. Mathieu, M. Physiologie et Ecophysiologie des Mollusques Marins (PE2M) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Centre de Microscopie Appliquée à la Biologie Caen (CMABio3) Interactions Cellules Organismes Environnement (ICORE) Normandie Université (NU)-Normandie Université (NU)-CHU Caen Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN)-Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN) 2008-08 https://normandie-univ.hal.science/hal-02296554 https://doi.org/10.1016/j.tice.2007.12.006 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tice.2007.12.006 hal-02296554 https://normandie-univ.hal.science/hal-02296554 doi:10.1016/j.tice.2007.12.006 ISSN: 0040-8166 Tissue and Cell https://normandie-univ.hal.science/hal-02296554 Tissue and Cell, 2008, 40 (4), pp.251-260. ⟨10.1016/j.tice.2007.12.006⟩ Germ cells characteristics Reproductive cycle Spermatogenesis Crassostrea gigas Mollusc bivalve [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2008 ftnormandieuniv https://doi.org/10.1016/j.tice.2007.12.006 2024-04-11T00:38:24Z International audience The aim of this study is to describe the early stages of spermatogenesis of the Pacific oyster Crassostrea gigas using both light and electron microscopy. The gonad is formed by gonadal tubules invaginated in a connective tissue constituting a storage tissue. Myoepithelial cells surround each gonadal tubule and are associated with an acellular matrix delimiting the outer part of the tubule, the inner part is composed by intragonadal somatic cells associated with germinal lineage. Two types of spermatogonia are identified, where type I spermatogonia (Spg I) are large, scarce and pale cells leaned against the base of the tubule (nuclear diameter: 5.5 ± 0.5 μm). Type II spermatogonia (Spg II) are clustered and dark cells which appear smaller than type I (nuclear diameter: 4.3 ± 0.3 μm). The aspect of nuage-like material in cytoplasm is described from pale spermatogonia to primary spermatocytes (nuclear diameter: pachytene 3.6 ± 0.3 μm, diplotene 3.4 ± 0.3 μm), while no structure related to a chromatoid body was observed in oyster spermatocytes and spermatids. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Normandie Université: HAL Tissue and Cell 40 4 251 260 |
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Normandie Université: HAL |
op_collection_id |
ftnormandieuniv |
language |
English |
topic |
Germ cells characteristics Reproductive cycle Spermatogenesis Crassostrea gigas Mollusc bivalve [SDV]Life Sciences [q-bio] |
spellingShingle |
Germ cells characteristics Reproductive cycle Spermatogenesis Crassostrea gigas Mollusc bivalve [SDV]Life Sciences [q-bio] Franco, A. Heude Berthelin, C. Goux, D. Sourdaine, P. Mathieu, M. Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia) |
topic_facet |
Germ cells characteristics Reproductive cycle Spermatogenesis Crassostrea gigas Mollusc bivalve [SDV]Life Sciences [q-bio] |
description |
International audience The aim of this study is to describe the early stages of spermatogenesis of the Pacific oyster Crassostrea gigas using both light and electron microscopy. The gonad is formed by gonadal tubules invaginated in a connective tissue constituting a storage tissue. Myoepithelial cells surround each gonadal tubule and are associated with an acellular matrix delimiting the outer part of the tubule, the inner part is composed by intragonadal somatic cells associated with germinal lineage. Two types of spermatogonia are identified, where type I spermatogonia (Spg I) are large, scarce and pale cells leaned against the base of the tubule (nuclear diameter: 5.5 ± 0.5 μm). Type II spermatogonia (Spg II) are clustered and dark cells which appear smaller than type I (nuclear diameter: 4.3 ± 0.3 μm). The aspect of nuage-like material in cytoplasm is described from pale spermatogonia to primary spermatocytes (nuclear diameter: pachytene 3.6 ± 0.3 μm, diplotene 3.4 ± 0.3 μm), while no structure related to a chromatoid body was observed in oyster spermatocytes and spermatids. |
author2 |
Physiologie et Ecophysiologie des Mollusques Marins (PE2M) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Centre de Microscopie Appliquée à la Biologie Caen (CMABio3) Interactions Cellules Organismes Environnement (ICORE) Normandie Université (NU)-Normandie Université (NU)-CHU Caen Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN)-Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN) |
format |
Article in Journal/Newspaper |
author |
Franco, A. Heude Berthelin, C. Goux, D. Sourdaine, P. Mathieu, M. |
author_facet |
Franco, A. Heude Berthelin, C. Goux, D. Sourdaine, P. Mathieu, M. |
author_sort |
Franco, A. |
title |
Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia) |
title_short |
Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia) |
title_full |
Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia) |
title_fullStr |
Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia) |
title_full_unstemmed |
Fine structure of the early stages of spermatogenesis in the Pacific oyster, Crassostrea gigas (Mollusca, Bivalvia) |
title_sort |
fine structure of the early stages of spermatogenesis in the pacific oyster, crassostrea gigas (mollusca, bivalvia) |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://normandie-univ.hal.science/hal-02296554 https://doi.org/10.1016/j.tice.2007.12.006 |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 0040-8166 Tissue and Cell https://normandie-univ.hal.science/hal-02296554 Tissue and Cell, 2008, 40 (4), pp.251-260. ⟨10.1016/j.tice.2007.12.006⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tice.2007.12.006 hal-02296554 https://normandie-univ.hal.science/hal-02296554 doi:10.1016/j.tice.2007.12.006 |
op_doi |
https://doi.org/10.1016/j.tice.2007.12.006 |
container_title |
Tissue and Cell |
container_volume |
40 |
container_issue |
4 |
container_start_page |
251 |
op_container_end_page |
260 |
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1797581531692138496 |