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Breeding histories and selection criteria for oilseed rape in Europe and China identified by genome wide pedigree dissection

Wang, Xiaohua; Long, Yan; Wang, Nian; Zou, Jun; Ding, Guangda; Broadley, Martin R.; White, Philip J.; Yuan, Pan; Zhang, Qianwen; Luo, Ziliang; Liu, Peifa; Zhao, Hua; Zhang, Ying; Cai, Hongmei; King, Graham J.; Xu, Fangsen; Meng, Jinling; Shi, Lei

Authors

Xiaohua Wang

Yan Long

Nian Wang

Jun Zou

Guangda Ding

Martin R. Broadley

Philip J. White

Pan Yuan

Qianwen Zhang

Ziliang Luo

Peifa Liu

Hua Zhao

Ying Zhang

Hongmei Cai

Graham J. King

Fangsen Xu

Jinling Meng

Lei Shi



Abstract

Selection breeding has played a key role in the improvement of seed yield and quality in oilseed rape (Brassica napus L.). We genotyped Tapidor (European), Ningyou7 (Chinese) and their progenitors with the Brassica 60 K Illumina Infinium SNP array and mapped a total of 29,347 SNP markers onto the reference genome of Darmor-bzh. Identity by descent (IBD) refers to a haplotype segment of a chromosome inherited from a shared common ancestor. IBDs identified on the C subgenome were larger than those on the A subgenome within both the Tapidor and Ningyou7 pedigrees. IBD number and length were greater in the Ningyou7 pedigree than in the Tapidor pedigree. Seventy nine QTLs for flowering time, seed quality and root morphology traits were identified in the IBDs of Tapidor and Ningyou7. Many more candidate genes had been selected within the Ningyou7 pedigree than within the Tapidor pedigree. These results highlight differences in the transfer of favorable gene clusters controlling key traits during selection breeding in Europe and China.

Journal Article Type Article
Publication Date 2017-12
Journal Scientific Reports
Print ISSN 2045-2322
Electronic ISSN 2045-2322
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 7
Issue 1
Article Number 1916
APA6 Citation Wang, X., Long, Y., Wang, N., Zou, J., Ding, G., Broadley, M. R., …Shi, L. (2017). Breeding histories and selection criteria for oilseed rape in Europe and China identified by genome wide pedigree dissection. Scientific Reports, 7(1), https://doi.org/10.1038/s41598-017-02188-z
DOI https://doi.org/10.1038/s41598-017-02188-z
Publisher URL https://www.nature.com/articles/s41598-017-02188-z
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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