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Genome wide SNP dis...
Genome wide SNP discovery, analysis and evaluation in mallard (Anas platyrhynchos)
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- Kraus, Robert H. S. (author)
- Wageningen University & Research
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- Kerstens, Hindrik H. D. (author)
- Wageningen University & Research
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- van Hooft, Pim (author)
- Wageningen University & Research
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- Crooijmans, Richard P. M. A. (author)
- Wageningen University & Research
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- van der Poel, Jan J. (author)
- Wageningen University & Research
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- Elmberg, Johan (author)
- Kristianstad University,Akvatisk biologi och kemi
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- Vignal, Alain (author)
- UMR Génétique Cellulaire, Centre INRA de Toulouse, Castanet-Tolosan,UMR Génétique Cellulaire, Centre INRA de Toulouse, Castanet-Tolosan
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- Huang, Yinhua (author)
- China Agricultural University
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- Li, Ning (author)
- China Agricultural University
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- Prins, Herbert H. T. (author)
- Wageningen University & Research
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- Groenen, Martien A. M. (author)
- Wageningen University & Research
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(creator_code:org_t)
- 2011-03-16
- 2011
- English.
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In: BMC Genomics. - : BioMed Central Ltd.. - 1471-2164. ; 12
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Abstract
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- Background: Next generation sequencing technologies allow to obtain at low cost the genomic sequence information that currently lacks for most economically and ecologically important organisms. For the mallard duck genomic data is limited. The mallard is, besides a species of large agricultural and societal importance, also the focal species when it comes to long distance dispersal of Avian Influenza. For large scale identification of SNPs we performed Illumina sequencing of wild mallard DNA and compared our data with ongoing genome and EST sequencing of domesticated conspecifics. This is the first study of its kind for waterfowl. Results: More than one billion base pairs of sequence information were generated resulting in a 16x coverage of a reduced representation library of the mallard genome. Sequence reads were aligned to a draft domesticated duck reference genome and allowed for the detection of over 122,000 SNPs within our mallard sequence dataset. In addition, almost 62,000 nucleotide positions on the domesticated duck reference showed a different nucleotide compared to wild mallard. Approximately 20,000 SNPs identified within our data were shared with SNPs identified in the sequenced domestic duck or in EST sequencing projects. The shared SNPs were considered to be highly reliable and were used to benchmark non-shared SNPs for quality. Genotyping of a representative sample of 364 SNPs resulted in a SNP conversion rate of 99.7%. The correlation of the minor allele count and observed minor allele frequency in the SNP discovery pool was 0.72. Conclusion: We identified almost 150,000 SNPs in wild mallards that will likely yield good results in genotyping. Of these, similar to 101,000 SNPs were detected within our wild mallard sequences and similar to 49,000 were detected between wild and domesticated duck data. In the similar to 101,000 SNPs we found a subset of similar to 20,000 SNPs shared between wild mallards and the sequenced domesticated duck suggesting a low genetic divergence. Comparison of quality metrics between the total SNP set (122,000 + 62,000 = 184,000 SNPs) and the validated subset shows similar characteristics for both sets. This indicates that we have detected a large amount (similar to 150,000) of accurately inferred mallard SNPs, which will benefit bird evolutionary studies, ecological studies (e. g. disentangling migratory connectivity) and industrial breeding programs.
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- By the author/editor
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Kraus, Robert H. ...
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Kerstens, Hindri ...
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van Hooft, Pim
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Crooijmans, Rich ...
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van der Poel, Ja ...
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Elmberg, Johan
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show more...
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Vignal, Alain
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Huang, Yinhua
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Li, Ning
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Prins, Herbert H ...
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Groenen, Martien ...
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BMC Genomics
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Kristianstad University College