First breeding program of the Portuguese oyster Crassostrea angulata demonstrated significant selection response in traits of economic importance

Vu, Sang V.; Knibb, Wayne; Nguyen, Ngoc T. H.; Vu, In Van; O’Connor, Wayne A.; Dove, Michael; Nguyen, Nguyen Hong

doi:10.1016/j.aquaculture.2019.734664

Cited by 31 publications

(35 citation statements)

References 30 publications

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“…The Portuguese oyster used in this study were obtained from an ongoing breeding program for improved growth rate and the management of the oyster population was previously described in Vu et al [ 9 , 26 ]. The oyster samples were collected and traits of interest recorded at harvest after nine months of culture.…”

Section: Methodsmentioning

confidence: 99%

“…A total of 647 samples were collected, consisting of 188 oysters representing 57 full-sib families from the first generation and 459 oysters representing 33 full-sib families from the second generation in the Portuguese oyster breeding program at nine months old when oysters reached a marketable size [ 9 ]. The number per family ranged between 2–8 and 12–15 oysters for the first and second generation, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…may compete with oysters for food [ 8 ], and can retard oyster growth resulting in undersized shells and reduced meat weight [ 6 ]. A Portuguese oyster breeding program in Vietnam, using phenotypic selection has commenced to reduce the incidence of these diseases [ 9 , 10 ]. Morphometric traits (shell length, shell width, shell depth, shell weight), sensory traits (tenderness and taste, and moisture content) are of economic importance in the oyster breeding program [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…A Portuguese oyster breeding program in Vietnam, using phenotypic selection has commenced to reduce the incidence of these diseases [ 9 , 10 ]. Morphometric traits (shell length, shell width, shell depth, shell weight), sensory traits (tenderness and taste, and moisture content) are of economic importance in the oyster breeding program [ 9 , 10 ]. The family-based selection methods use the information from sibs; therefore, this results in lower accuracy using direct information from selection candidates.…”

Section: Introductionmentioning

confidence: 99%

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Prediction Accuracies of Genomic Selection for Nine Commercially Important Traits in the Portuguese Oyster (Crassostrea angulata) Using DArT-Seq Technology

Gondro

Nguyen

et al. 2021

Genes

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Genomic selection has been widely used in terrestrial animals but has had limited application in aquaculture due to relatively high genotyping costs. Genomic information has an important role in improving the prediction accuracy of breeding values, especially for traits that are difficult or expensive to measure. The purposes of this study were to (i) further evaluate the use of genomic information to improve prediction accuracies of breeding values from, (ii) compare different prediction methods (BayesA, BayesCπ and GBLUP) on prediction accuracies in our field data, and (iii) investigate the effects of different SNP marker densities on prediction accuracies of traits in the Portuguese oyster (Crassostrea angulata). The traits studied are all of economic importance and included morphometric traits (shell length, shell width, shell depth, shell weight), edibility traits (tenderness, taste, moisture content), and disease traits (Polydora sp. and Marteilioides chungmuensis). A total of 18,849 single nucleotide polymorphisms were obtained from genotyping by sequencing and used to estimate genetic parameters (heritability and genetic correlation) and the prediction accuracy of genomic selection for these traits. Multi-locus mixed model analysis indicated high estimates of heritability for edibility traits; 0.44 for moisture content, 0.59 for taste, and 0.72 for tenderness. The morphometric traits, shell length, shell width, shell depth and shell weight had estimated genomic heritabilities ranging from 0.28 to 0.55. The genomic heritabilities were relatively low for the disease related traits: Polydora sp. prevalence (0.11) and M. chungmuensis (0.10). Genomic correlations between whole weight and other morphometric traits were from moderate to high and positive (0.58–0.90). However, unfavourably positive genomic correlations were observed between whole weight and the disease traits (0.35–0.37). The genomic best linear unbiased prediction method (GBLUP) showed slightly higher accuracy for the traits studied (0.240–0.794) compared with both BayesA and BayesCπ methods but these differences were not significant. In addition, there is a large potential for using low-density SNP markers for genomic selection in this population at a number of 3000 SNPs. Therefore, there is the prospect to improve morphometric, edibility and disease related traits using genomic information in this species.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Prediction Accuracies of Genomic Selection for Nine Commercially Important Traits in the Portuguese Oyster (Crassostrea angulata) Using DArT-Seq Technology

Gondro

Nguyen

et al. 2021

Genes

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“…For decades, bivalves have been selectively bred to enhance traits relevant to improving aquaculture production (Newkirk 1980; Guo 2004; Abdelrahman et al 2017; Mizuta and Wikfors 2019). Much attention has been paid to improving fundamental performance measures, such as survival and growth, for numerous commercially important species (Manzi et al 1991; Utting et al 1996; Zheng et al 2006; Deng et al 2009; Li et al 2011; Dove and Connor 2012; Vu et al 2020). Additionally, genetic improvements have been made to enhance species’ resistance or tolerance to diseases (Haskin and Ford 1979; Guo et al 2003; Ragone Calvo et al 2003; Proestou et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Exploring the Feasibility of Selectively Breeding Farmed Atlantic Surfclams Spisula solidissima for Greater Heat Tolerance

Acquafredda

Munroe

2020

N American J Aquac

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Bivalve aquaculture is an important and rapidly expanding sector in global food production, yet climate change presents numerous challenges to its continued expansion. The Atlantic surfclam Spisula solidissima is emerging as an attractive alternate species for aquaculturists across the northeastern United States since it is native, grows rapidly, and complements the region’s established farming framework. However, the species is vulnerable to prolonged high temperature conditions, an issue that will be exacerbated by rising ocean temperatures and is particularly problematic on shallow coastal farms. In this study, we evaluated the response of adult farmed Atlantic surfclams to heat stress after juvenile exposure and the ability for heat tolerance to be passed to subsequent generations. We found that when juvenile Atlantic surfclams were exposed to prolonged lethal temperatures, the adult survivors withstood subsequent heat stress for significantly longer than individuals not exposed to lethal temperatures as juveniles. We also found that selective breeding enhanced heat tolerance in first‐generation Atlantic surfclam progeny. Moreover, growth of the heat‐selected progeny was not significantly different from that of control Atlantic surfclams. Although more research on this topic is necessary, this work suggests that selective breeding may be a viable strategy for enhancing survival of cultivated bivalves vulnerable to heat stress.

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Genetic parameters and genotype by environment interactions for harvest traits in the Pacific oyster (Crassostrea gigas)

Chi

2023

Aquacult Int

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First breeding program of the Portuguese oyster Crassostrea angulata demonstrated significant selection response in traits of economic importance

Cited by 31 publications

References 30 publications

Prediction Accuracies of Genomic Selection for Nine Commercially Important Traits in the Portuguese Oyster (Crassostrea angulata) Using DArT-Seq Technology

Prediction Accuracies of Genomic Selection for Nine Commercially Important Traits in the Portuguese Oyster (Crassostrea angulata) Using DArT-Seq Technology

Exploring the Feasibility of Selectively Breeding Farmed Atlantic Surfclams Spisula solidissima for Greater Heat Tolerance

Genetic parameters and genotype by environment interactions for harvest traits in the Pacific oyster (Crassostrea gigas)

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