Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis
Triploid Pacific oysters, Crassostrea gigas, were produced by treating newly fertilized eggs with cytochalasin B. After a year of growth, diploid and triploid oysters were sampled throughout the reproductive season to determine the effect of triploidy on gamete formation and sexual expression. Relat...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1990
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Online Access: | http://dx.doi.org/10.1139/f90-141 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-141 |
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crcansciencepubl:10.1139/f90-141 2024-06-23T07:52:15+00:00 Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis Allen Jr., Standish K. Downing, Sandra L. 1990 http://dx.doi.org/10.1139/f90-141 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-141 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 47, issue 6, page 1213-1222 ISSN 0706-652X 1205-7533 journal-article 1990 crcansciencepubl https://doi.org/10.1139/f90-141 2024-06-06T04:11:14Z Triploid Pacific oysters, Crassostrea gigas, were produced by treating newly fertilized eggs with cytochalasin B. After a year of growth, diploid and triploid oysters were sampled throughout the reproductive season to determine the effect of triploidy on gamete formation and sexual expression. Relative to diploids, gametogenesis in triploids was retarded but not absent: both male and female triploids produced some gonad. Gametogenesis in most triploid males resulted in spermatid production; all triploid males produced numerous spermatocytes. Oocyte formation in most triploid females was severely retarded, although some triploid females produced numerous eggs. Hermaphroditism in the triploid population was markedly higher than in diploids: 29 versus 1%, respectively. The ratio of males:females was the same in diploids and triploids. Article in Journal/Newspaper Crassostrea gigas Canadian Science Publishing Pacific Canadian Journal of Fisheries and Aquatic Sciences 47 6 1213 1222 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Triploid Pacific oysters, Crassostrea gigas, were produced by treating newly fertilized eggs with cytochalasin B. After a year of growth, diploid and triploid oysters were sampled throughout the reproductive season to determine the effect of triploidy on gamete formation and sexual expression. Relative to diploids, gametogenesis in triploids was retarded but not absent: both male and female triploids produced some gonad. Gametogenesis in most triploid males resulted in spermatid production; all triploid males produced numerous spermatocytes. Oocyte formation in most triploid females was severely retarded, although some triploid females produced numerous eggs. Hermaphroditism in the triploid population was markedly higher than in diploids: 29 versus 1%, respectively. The ratio of males:females was the same in diploids and triploids. |
format |
Article in Journal/Newspaper |
author |
Allen Jr., Standish K. Downing, Sandra L. |
spellingShingle |
Allen Jr., Standish K. Downing, Sandra L. Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis |
author_facet |
Allen Jr., Standish K. Downing, Sandra L. |
author_sort |
Allen Jr., Standish K. |
title |
Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis |
title_short |
Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis |
title_full |
Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis |
title_fullStr |
Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis |
title_full_unstemmed |
Performance of Tripfoid Pacific Oysters, Crassostrea gigas: Gametogenesis |
title_sort |
performance of tripfoid pacific oysters, crassostrea gigas: gametogenesis |
publisher |
Canadian Science Publishing |
publishDate |
1990 |
url |
http://dx.doi.org/10.1139/f90-141 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-141 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 47, issue 6, page 1213-1222 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f90-141 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
47 |
container_issue |
6 |
container_start_page |
1213 |
op_container_end_page |
1222 |
_version_ |
1802643499100667904 |