Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
Home
  • Home
Hostname: page-component-559fc8cf4f-qpj69 Total loading time: 0.291 Render date: 2021-03-02T05:59:30.437Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }
EnglishFrançais
Genetics Research Genetics Research

Article contents

Separate effects of triploidy, parentage and genomic diversity upon feeding behaviour, metabolic efficiency and net energy balance in the Pacific oyster Crassostrea gigas

Published online by Cambridge University Press:  18 January 2001

A. J. S. HAWKINS ,
A. MAGOULAS ,
M. HÉRAL ,
S. BOUGRIER ,
Y. NACIRI-GRAVEN ,
A. J. DAY  and
G. KOTOULAS
A. J. S. HAWKINS
Affiliation:
Plymouth Marine Laboratory, Centre for Coastal Marine Sciences, Natural Environment Research Council, West Hoe, Plymouth PL1 3DH, UK
A. MAGOULAS
Affiliation:
Institute of Marine Biology of Crete, PO Box 2214, 710 03 Iraklion, Crete, Greece
M. HÉRAL
Affiliation:
Institut Français de Recherche pour l'Exploitation de la Mer, BP 133, Ronce les Bains, 17 390 La Tremblade, France
S. BOUGRIER
Affiliation:
Institut Français de Recherche pour l'Exploitation de la Mer, BP 133, Ronce les Bains, 17 390 La Tremblade, France
Y. NACIRI-GRAVEN
Affiliation:
Conservatoire et Jardin botaniques, 1 chemin de l'Imperatrice, Case Poswtale 60, CH-1292 Chambesy, Geneva, Switzerland
A. J. DAY
Affiliation:
Plymouth Marine Laboratory, Centre for Coastal Marine Sciences, Natural Environment Research Council, West Hoe, Plymouth PL1 3DH, UK
G. KOTOULAS
Affiliation:
Institute of Marine Biology of Crete, PO Box 2214, 710 03 Iraklion, Crete, Greece
Save pdf (0.3 mb)
Rights & Permissions[Opens in a new window]

Abstract

Triploid oysters were induced using cytochalasin B upon retention of either the first (meiosis I triploids) or the second (meiosis II triploids) polar body in embryos from a single cohort derived from mixed parentage. Allozyme and microsatellite assays enabled the confirmation of both parentage and triploidy status in each oyster. Comparison of meiosis I triploids, meiosis II triploids and diploid siblings established that improved physiological performance in triploids was associated with increased allelic variation, rather than with the quantitative dosage effects of ploidy status. An unidentified maternal influence also interacted with genotype. Among full sibs, allelic variation measured as multi-locus enzyme heterozygosity accounted for up to 42% of the variance in physiological performance; significant positive influences were identified upon feeding rate, absorption efficiency, net energy balance and growth efficiency (= net energy balance ÷ energy absorbed). Whilst allelic variation was greater in both meiosis I and meiosis II triploids than in diploid siblings, both allelic variation and net energy balance were highest in triploids induced at meiosis I. This suggests that it may be preferable to induce triploidy by blocking meiosis I, rather than meiosis II as has traditionally been undertaken during commercial breeding programmes.

Type
Research Article
Information
Genetics Research , Volume 76 , Issue 3 , December 2000 , pp. 273 - 284
Copyright
© 2000 Cambridge University Press

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 24
Total number of PDF views: 91 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 2nd March 2021. This data will be updated every 24 hours.

Access

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Separate effects of triploidy, parentage and genomic diversity upon feeding behaviour, metabolic efficiency and net energy balance in the Pacific oyster Crassostrea gigas
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Separate effects of triploidy, parentage and genomic diversity upon feeding behaviour, metabolic efficiency and net energy balance in the Pacific oyster Crassostrea gigas
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Separate effects of triploidy, parentage and genomic diversity upon feeding behaviour, metabolic efficiency and net energy balance in the Pacific oyster Crassostrea gigas
Available formats
×
×

Reply to: Submit a response

Your details

Conflicting interests

Do you have any conflicting interests? *