Lack of intermuscular bones in specimens of Colossoma macropomum: An unusual phenotype to be incorporated into genetic improvement programs

Perazza, Caio Augusto; Menezes, Jenner Tavares Bezerra; Ferraz, José Bento Sterman; Pinaffi, F.L.V.; Silva, Luciano Andrade; Hilsdorf, Alexandre Wagner Silva

doi:10.1016/j.aquaculture.2016.05.014

Cited by 26 publications

(30 citation statements)

References 19 publications

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“…The role of tambaqui loin as a specialty meat cut coupled with the presence of intramuscular boneless tambaqui (Perazza et al, ) and the moderate‐to‐high heritability of LEA estimates reported here pave the way for improving this trait in a manner similar to that employed in the pork industry. Our simulation for genetic gain of LEA in tambaquis shows that we can obtain an annual gain of 5.19% with a heritability of 0.39 and a high selection intensity of 0.01%.…”

Section: Discussionmentioning

confidence: 72%

Genetic parameters for loin eye area and other body traits of an important Neotropical aquaculture species,Colossoma macropomum(Cuvier, 1818)

Perazza

Ferraz²,

Almeida-Val

et al. 2019

Aquac Res

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Estimating components of variance and genetic parameters of economically relevant traits is the first step towards planning a breeding program for aquaculture species. This study estimated the (co)variance components for growth rate and other body traits and then determined a multiple regression equation to assess the loin eye area (LEA) from morphometric traits of the Neotropical aquaculture species Colossoma macropomum. Estimation of variance components was performed using derivative‐free restricted maximum likelihood estimation using the MTDFREML package. Six predictive variables were tested to estimate the coefficient of regression equation and to select the most suitable model for predicting LEA. The estimated genetic parameter for body weight showed moderate‐to‐high heritability estimates of 0.26 (0.01) and 0.49 (0.01) at 221 and 623 days respectively. The genetic correlation (rg) estimates between body size measurements were positive and ranged from low to high at both ages. The heritability for LEA in this assessment was 0.39 (0.03). The genetic and phenotypic correlations between LEA and the other body measurements ranged from 0.16 to 0.94 and 0.75 and 0.90 respectively. The outcomes of this study can contribute to the development of a genetics‐based breeding program that will improve (tambaqui) productivity and carcass quality.

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Section: Discussionmentioning

confidence: 72%

Genetic parameters for loin eye area and other body traits of an important Neotropical aquaculture species,Colossoma macropomum(Cuvier, 1818)

Perazza

Ferraz²,

Almeida-Val

et al. 2019

Aquac Res

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“…This choice determines the number of genomic fragments produced by the complexity reduction for the species under study, which in turn are used to identify genome-wide sequence polymorphisms37. The in silico fragmentation showed that PstI and SbfI produce a large difference in the number of restriction sites.…”

Section: Discussionmentioning

confidence: 99%

Large-scale SNP discovery and construction of a high-density genetic map of Colossoma macropomum through genotyping-by-sequencing

Nunes

Liu

Pértille

et al. 2017

Sci Rep

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Colossoma macropomum, or tambaqui, is the largest native Characiform species found in the Amazon and Orinoco river basins, yet few resources for genetic studies and the genetic improvement of tambaqui exist. In this study, we identified a large number of single-nucleotide polymorphisms (SNPs) for tambaqui and constructed a high-resolution genetic linkage map from a full-sib family of 124 individuals and their parents using the genotyping by sequencing method. In all, 68,584 SNPs were initially identified using minimum minor allele frequency (MAF) of 5%. Filtering parameters were used to select high-quality markers for linkage analysis. We selected 7,734 SNPs for linkage mapping, resulting in 27 linkage groups with a minimum logarithm of odds (LOD) of 8 and maximum recombination fraction of 0.35. The final genetic map contains 7,192 successfully mapped markers that span a total of 2,811 cM, with an average marker interval of 0.39 cM. Comparative genomic analysis between tambaqui and zebrafish revealed variable levels of genomic conservation across the 27 linkage groups which allowed for functional SNP annotations. The large-scale SNP discovery obtained here, allowed us to build a high-density linkage map in tambaqui, which will be useful to enhance genetic studies that can be applied in breeding programs.

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“…Perazza et al . 22 has reported that specimens of tambaqui ( Colossoma macropomum ) from one culture population lack IBs, even though this fish normally has IBs. Xu et al .…”

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confidence: 99%

Dynamic mRNA and miRNA expression analysis in response to intermuscular bone development of blunt snout bream (Megalobrama amblycephala)

Wan

Zhong

et al. 2016

Sci Rep

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Intermuscular bone (IB), which occurs only in the myosepta of lower teleosts, is attracting more attention because they are difficult to remove and make the fish unpleasant to eat. By gaining a better understanding of the genetic regulation of IB development, an integrated analysis of miRNAs and mRNAs expression profiling was performed on Megalobrama amblycephala. Four key development stages were selected for transcriptome and small RNA sequencing. A number of significantly differentially expressed miRNAs/genes associated with bone formation and differentiation were identified and the functional characteristics of these miRNAs/genes were revealed by GO function and KEGG pathway analysis. These were involved in TGF-β, ERK and osteoclast differentiation pathways known in the literature to affect bone formation and differentiation. MiRNA-mRNA interaction pairs were detected from comparison of expression between different stages. The function annotation results also showed that many miRNA-mRNA interaction pairs were likely to be involved in regulating bone development and differentiation. A negative regulation effect of two miRNAs was verified through dual luciferase reporter assay. As a unique public resource for gene expression and regulation during the IB development, this study is expected to provide forwards ideas and resources for further biological researches to understand the IBs’ development.

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Lack of intermuscular bones in specimens of Colossoma macropomum: An unusual phenotype to be incorporated into genetic improvement programs

Cited by 26 publications

References 19 publications

Genetic parameters for loin eye area and other body traits of an important Neotropical aquaculture species,Colossoma macropomum(Cuvier, 1818)

Genetic parameters for loin eye area and other body traits of an important Neotropical aquaculture species,Colossoma macropomum(Cuvier, 1818)

Large-scale SNP discovery and construction of a high-density genetic map of Colossoma macropomum through genotyping-by-sequencing

Dynamic mRNA and miRNA expression analysis in response to intermuscular bone development of blunt snout bream (Megalobrama amblycephala)

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