Production and Performance of Triploid Oysters for Aquaculture

Yang, Huanming; Simon, None Natalie; Sturmer, Leslie

doi:10.32473/edis-fa208-2018

Cited by 14 publications

(3 citation statements)

References 17 publications

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“…So far, two types of polyploid oysters, triploids and tetraploids, were developed. Tetraploids oysters are produced for further crossing diploid oysters, resulting in the production of triploids oysters (Yang et al 2018).…”

Section: Polyploidymentioning

confidence: 99%

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Sustainable large‐scale production of European flat oyster (Ostrea edulis) seed for ecological restoration and aquaculture: a review

Colsoul

Boudry

Pérez‐Parallé

et al. 2021

Reviews in Aquaculture

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The conservation and active restoration of European flat oyster (Ostrea edulis) populations are a major focus of ecological restoration efforts to take advantage of the wide-ranging ecosystem functions and services this species provides. Accordingly, additional and new demands for seed oysters have arisen. In commercial aquaculture (mariculture), the production of O. edulis is still largely based on natural seed collection. Considering the specific requirements, related to ecological restoration, such as the absence of pathogens and the preservation of high genetic diversity, the current supply is insufficient. Despite the development of breeding and controlled reproduction techniques for this species since the late 1930s, seed production today is mainly based on empirical concepts. Several of the issues that producers still face are already subjects of research; many others are still unanswered or even unaddressed. This review provides a summary of all available knowledge and technologies of O. edulis seed production. Furthermore, it provides a detailed reflection on implications for restoration, future challenges, open questions and it identifies relevant research topics for sustainable seed supply. The study covers the following aspects on (i) biology of the species, (ii) stressorsincluding pathogens and pollutants, (iii) genetics, (iv) history of production technologies, (v) seed production in polls, (vi) seed production in ponds and (vii) seed production in hatcheries. Future research needs on sex determinism, gametogenesis, cryopreservation, nutrition, selective breeding, pathogens and disease, and the development of reliable protocols for production are highlighted.

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Section: Polyploidymentioning

confidence: 99%

“…Tetraploids oysters are produced for further crossing diploid oysters, resulting in the production of triploids oysters (Yang et al . 2018).…”

Section: Geneticsmentioning

confidence: 99%

Sustainable large‐scale production of European flat oyster (Ostrea edulis) seed for ecological restoration and aquaculture: a review

Colsoul

Boudry

Pérez‐Parallé

et al. 2021

Reviews in Aquaculture

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show abstract

“…Triploid oysters, for example, often exhibit characteristics such as rapid growth, superior meat quality and year-round harvestability because they have three sets of chromosomes [4]. Currently, triploid oyster aquaculture has become an important part of the global industry [5]. In the case of H. discus hannai , research on triploids dates to the late 1990s when studies demonstrated that triploids had a growth advantage over their diploid counterparts [6‒9].…”

Section: Introductionmentioning

confidence: 99%

Comparative Cytogenetic Analysis of Diploid and Triploid Pacific Abalone, <i>Haliotis discus hannai</i>

Zhang,

Wang,

et al. 2023

Cytogenet Genome Res

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Cytogenetic analysis of triploid Haliotis discus hannai larvae (produced by chemical treatment) and its diploids were performed. The results showed that triploid H. discus hannai had a chromosome number of 3n = 54, consisting of 30 metacentric (m) and 24 submetacentric (sm) chromosomes, while the diploids had a chromosome number of 2n = 36, consisting of 20 metacentric (m) and 16 submetacentric (sm) chromosomes. Notably, both triploids and diploids displayed variation in the number of NORs and/or their diameter. The average number of NORs was significantly higher in triploids than in diploids (P < 0.05), while there was no significant difference in the average diameter of NORs between the two groups (P > 0.05). Additionally, 5S rDNA localization to 3 submetacentric chromosomes was observed in triploids, compared to 2 submetacentric chromosomes in diploids. The number of 18S rDNA sites displayed positional conservancy and quantitative variability in both diploids and triploids. Specifically, 18S rDNA was found at the end of the chromosome in both groups, with triploids exhibiting a significantly higher number of loci than diploids (P < 0.01). This study provides valuable insights into the cytogenetic characteristics of triploid H. discus hannai, which could facilitate further research on the stability of the chromosome set in this species.

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Comparative Transcriptome Analysis Reveals the Role of Ribosome Reduction in Impeding Oogenesis in Female Triploid Crassostrea Gigas

Yang,

Yu,

2024

Mar Biotechnol

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Production and Performance of Triploid Oysters for Aquaculture

Cited by 14 publications

References 17 publications

Sustainable large‐scale production of European flat oyster (Ostrea edulis) seed for ecological restoration and aquaculture: a review

Sustainable large‐scale production of European flat oyster (Ostrea edulis) seed for ecological restoration and aquaculture: a review

Comparative Cytogenetic Analysis of Diploid and Triploid Pacific Abalone, <i>Haliotis discus hannai</i>

Comparative Transcriptome Analysis Reveals the Role of Ribosome Reduction in Impeding Oogenesis in Female Triploid Crassostrea Gigas

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