Data/hora: 11/06/2024 01:23:08

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Survival, Growth and Reproduction of Cryopreserved Larvae from a Marine Invertebrate, the Pacific Oyster (Crassostrea gigas)
Autores: | Suquet, Marc; Labbe, Catherine; Puyo, Sophie; Mingant, Christian; Quittet, Benjamin; Boulais, Myrina; Queau, Isabelle; Ratiskol, Dominique; Diss, Blandine; Haffray, Pierrick.
Data: | 2014-04
Ano: | 2014
Resumo: | This study is the first demonstration of successful post-thawing development to reproduction stage of diploid cryopreserved larvae in an aquatic invertebrate. Survival, growth and reproductive performances were studied in juvenile and adult Pacific oysters grown from cryopreserved embryos. Cryopreservation was performed at three early stages: trochophore (13 +/- 2 hours post fertilization: hpf), early D-larvae (24 +/- 2 hpf) and late D-larvae (43 +/- 2 hpf). From the beginning (88 days) at the end of the ongrowing phase (195 days), no mortality was recorded and mean body weights did not differ between the thawed oysters and the control. At the end of the growing-out phase (982 days), survival of the oysters cryopreserved at 13 +/- 2 hpf and at 43 +/- 2 hpf was significantly higher (P&lt;0.001) than those of the control (non cryopreserved larvae). Only the batches cryopreserved at 24 +/- 2 hpf showed lower survival than the control. Reproductive integrity of the mature oysters, formely cryopreserved at 13 +/- 2 hpf and 24 +/- 2 hpf, was estimated by the sperm movement and the larval development of their offspring in 13 crosses gamete pools (five males and five females in each pool). In all but two crosses out of 13 tested (P&lt;0.001), development rates of the offspring were not significantly different between frozen and unfrozen parents. In all, the growth and reproductive performances of oysters formerly cryopreserved at larval stages are close to those of controls. Furthermore, these performances did not differ between the three initial larval stages of cryopreservation. The utility of larvae cryopreservation is discussed and compared with the cryopreservation of gametes as a technique for selection programs and shellfish cryobanking.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00190/30092/28635.pdf

DOI:10.1371/journal.pone.0093486

Editor: | Public Library Science
Relação: | http://archimer.ifremer.fr/doc/00190/30092/
Formato: | application/pdf
Fonte: | Plos One (1932-6203) (Public Library Science), 2014-04 , Vol. 9 , N. 4 , P. e93486
Fonte: | 2014 Suquet et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.