Potential of genomic selection in rapeseed (<i><scp>B</scp>rassica napus</i> L.) breeding
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- Tobias Würschum
- State Plant Breeding Institute University of Hohenheim Stuttgart 70593 Germany
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- Stefan Abel
- Limagrain GmbH Peine‐Rosenthal 31226 Germany
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- Yusheng Zhao
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben 06466 Germany
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- J. Léon
- editor
書誌事項
- 公開日
- 2013-12-12
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1111/pbr.12137
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Genomic selection employs genome‐wide marker data to predict genomic breeding values. In this study, a population consisting of 391 lines of elite winter oilseed rape derived from nine families was used to evaluate the prospects of genomic selection in rapeseed breeding. All lines have been phenotyped for six morphological, quality‐ and yield‐related traits and genotyped with genome‐wide <jats:styled-content style="fixed-case">SNP</jats:styled-content> markers. We used ridge regression best linear unbiased prediction in combination with cross‐validation and obtained medium to high prediction accuracies for the studied traits. Our results illustrate that among‐family variance contributes to the prediction accuracy and can lead to an overestimation of the prospects of genomic selection within single segregating families. We also tested a scenario where estimation of effects was carried out without individuals from the family in which breeding values were predicted, which yielded lower but nevertheless attractive prediction accuracies. Taken together, our results suggest that genomic selection can be a valuable genomic approach for complex agronomic traits towards a knowledge‐based breeding in rapeseed.</jats:p>
収録刊行物
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- Plant Breeding
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Plant Breeding 133 (1), 45-51, 2013-12-12
Wiley