Heritability of growth traits in the Asian seabass ( Lates calcarifer )

Ye, Baoqing; Wan, Z. Y.; Wang, Le; Pang, HweeHwa; Wen, Yanfei; Liu, Huiming; Liang, Bing; Lim, Huan Sein; Jiang, Junhui; Yue, Genhua

doi:10.1016/j.aaf.2017.06.001

Cited by 44 publications

(24 citation statements)

References 28 publications

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“…Survival and growth exert the greatest impact on the economic performance of Asian seabass production. Growth remains the foremost trait in finfish aquaculture which is inherently associated with the productivity and turnover or profitability of enterprises (Gjedrem & Robinson, ; Ye et al, ). The sustainability, success, and profitability of semi‐intensive and intensive Asian seabass culture in ponds and cages depend, to a large extent, on good quality supplemented feed.…”

Section: Introductionmentioning

confidence: 99%

Dietary administration of astaxanthin improves feed utilization, growth performance and survival of Asian seabass,Lates calcarifer(Bloch, 1790)

et al. 2019

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This study was undertaken to assess the impacts of dietary astaxanthin supplementation on growth performance, feed utilization, survival, and serum growth hormone (GH) availability of Asian seabass, Lates calcarifer, with special reference to dose–response relationships and variations during different feeding phases (short‐term, medium‐term and long‐term). Fish were fed the following diets in triplicate for 90 days: the control (CD), AX50 (50 mg astaxanthin/kg diet), AX100 (100 mg astaxanthin/kg diet) and AX150 (150 mg astaxanthin/kg diet). The findings revealed that fish exhibited significant linear increments (p < .05) in specific growth rate (SGR), weight gain, feed utilization efficiency and survival when fed various diets with escalating levels of astaxanthin. Supplementation with dietary astaxanthin significantly augmented (p < .05) GH levels in fish. Significant positive associations (p < .05) were observed between circulating serum GH levels and SGR of fish from all groups following three consecutive feeding phases, denoting a robust cause‐and‐effect relationship. Circulating GH concentrations were considered as a sensitive biomarker of growth performance in Asian seabass. This study illustrated that supplemental astaxanthin could be administered in culture protocols to improve the growth rate and commercial hatchery production of Asian seabass, and possibly other teleost species.

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Section: Introductionmentioning

confidence: 99%

Dietary administration of astaxanthin improves feed utilization, growth performance and survival of Asian seabass,Lates calcarifer(Bloch, 1790)

et al. 2019

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“…The heritability has been reported for a range of traits in commercial aquaculture species, such as resistance to the bacterial disease columnaris in Rainbow trout (Evenhuis et al, 2015 ); growth related traits in tilapia (Charo-Karisa et al, 2006 ; Trọng et al, 2013 ), common carp (Vandeputte et al, 2004 ), and barramundi (Wang et al, 2008b ; Domingos et al, 2013 ; Ye et al, 2017 ). To date, there has been limited genetic parameter estimates in Asian seabass and the published information that exists relates only to body traits recorded in the early stage of growth development, such as at 62 dph (Domingos et al, 2013 ), and 90 and 270 dph (Ye et al, 2017 ). Wang et al ( 2008b ) also analyzed the correlation of body weights between 90 and 270 dph while Ye et al ( 2017 ) reported moderate heritability for growth traits at those measurement periods.…”

Section: Introductionmentioning

confidence: 99%

“…To date, there has been limited genetic parameter estimates in Asian seabass and the published information that exists relates only to body traits recorded in the early stage of growth development, such as at 62 dph (Domingos et al, 2013 ), and 90 and 270 dph (Ye et al, 2017 ). Wang et al ( 2008b ) also analyzed the correlation of body weights between 90 and 270 dph while Ye et al ( 2017 ) reported moderate heritability for growth traits at those measurement periods. Generally, the heritability and genetic correlations for body traits during growth trajectory from tagging to sexual maturity (about 3 kg) are rare in the literature.…”

Section: Introductionmentioning

confidence: 99%

An 8-Year Breeding Program for Asian Seabass Lates calcarifer: Genetic Evaluation, Experiences, and Challenges

et al. 2018

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Selective breeding for marine finfish is challenging due to difficulties in reproduction, larval rearing, and on-growth in captive environments. The farming of Asian seabass (Lates calcarifer) has all these problems and our knowledge of the quantitative genetic information (heritability and correlations) of traits necessary for commercial exploitation is poor. The present study was conducted to address this knowledge gap and to provide information that can be applied to sea bass and other aquaculture species. We carried out a comprehensive genetic evaluation for three traits (body weight, total length, and survival) collected from a breeding population for Asian seabass over an eight-year period from 2010 to 2017. Statistical analysis was carried out on 4,567 adult fish at 105, 180, 270, 360, 450, and 570 days post-hatch (dph). The heritabilities (h2) estimated for body weight and length using linear mixed model were moderate to high (0.12 to 0.78 and 0.41 to 0.85, respectively) and they differed between the measurement periods. Survival during grow-out phase was analyzed using threshold logistic and probit models. The heritability estimates for survival rate on the underlying liability scale (hL2) varied from 0.05 to 0.21. When the observed heritability obtained from the linear mixed model was back-transformed to the liability scale, they were similar but not significant. In addition, we examined effects of genotype by environment (G × E) interaction on body traits. The genetic correlation for body weight between tank and sea cage cultures were high (0.91–0.94) in the first and second rearing periods (180 and 270 dph) but the correlation was decreased to 0.59 ± 0.33 at 360 dph. This suggests that the genotype by environment interaction is important for body traits in this population. Furthermore, the genetic correlations of body weights between different measurement periods were moderate but different from one. This suggests that body weights measured at different time points may be different traits and selection for improved early weight may not capture all genetic expressions in subsequent rearing periods in Asian seabass. Selection of the nucleus in sea cages may produce genotypes that do not perform equally well in tanks, although this deserves further studies to determine a suitable selection environment and optimize the breeding program. This paper discusses challenges encountered during implementation of the selection program for L. calcarifer.

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“…Despite the numerous factors influencing growth, most quantitative genetics studies that investigate growth report moderate to high heritabilities ( e.g. , 0.1 - 0.5) in a wide range of taxa (Wang 2009; Tsai et al 2015; Ye et al 2017). In fish, a number of genes associated with growth have been identified (reviewed in De-Santis and Jerry 2007), including growth hormone , insulin-like growth factors, as well as a range of myogenic growth regulators.…”

mentioning

confidence: 99%

High-Density Linkage Map and QTLs for Growth in Snapper (Chrysophrys auratus)

Ashton

Ritchie

Wellenreuther

2019

G3 Genes|Genomes|Genetics

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Characterizing the genetic variation underlying phenotypic traits is a central objective in biological research. This research has been hampered in the past by the limited genomic resources available for most non-model species. However, recent advances in sequencing technologies and related genotyping methods are rapidly changing this. Here we report the use of genome-wide SNP data from the ecologically and commercially important marine fish species Chrysophrys auratus (snapper) to 1) construct the first linkage map for this species, 2) scan for growth QTL, and 3) search for putative candidate genes in the surrounding QTL regions. The newly constructed linkage map contained ∼11K SNP markers and is one of the densest maps to date in the fish family Sparidae. Comparisons with genome scaffolds of the recently assembled snapper genome indicated that marker placement was mostly consistent between the scaffolds and linkage map (R = 0.7), but that at fine scales (< 5 cM) some precision limitations occurred. Of the 24 linkage groups, which likely reflect the 24 chromosomes of this species, three were found to contain QTL with genome-wide significance for growth-related traits. A scan of 13 candidate growth genes located the growth hormone, myogenin, and parvalbumin genes within 5.3, 9.6, and 25.0 cM of these QTL, respectively. The linkage map and QTL found in this study will advance the investigation of genome structure and aquaculture breeding efforts in this and related species.

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Heritability of growth traits in the Asian seabass ( Lates calcarifer )

Cited by 44 publications

References 28 publications

Dietary administration of astaxanthin improves feed utilization, growth performance and survival of Asian seabass,Lates calcarifer(Bloch, 1790)

Dietary administration of astaxanthin improves feed utilization, growth performance and survival of Asian seabass,Lates calcarifer(Bloch, 1790)

An 8-Year Breeding Program for Asian Seabass Lates calcarifer: Genetic Evaluation, Experiences, and Challenges

High-Density Linkage Map and QTLs for Growth in Snapper (Chrysophrys auratus)

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