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

Wang, Xiaohua and Long, Yan and Wang, Nian and Zou, Jun and Ding, Guangda and Broadley, Martin R. and White, Philip J. and Yuan, Pan and Zhang, Qianwen and Luo, Ziliang and Liu, Peifa and Zhao, Hua and Zhang, Ying and Cai, Hongmei and King, Graham J. and Xu, Fangsen and Meng, Jinling and Shi, Lei (2017) Breeding histories and selection criteria for oilseed rape in Europe and China identified by genome wide pedigree dissection. Scientific Reports, 7 (1). 1916/1-1916/11. ISSN 2045-2322

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution.
Download (2MB) | Preview

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.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Biosciences > Division of Plant and Crop Sciences
Identification Number: 10.1038/s41598-017-02188-z
Depositing User: Eprints, Support
Date Deposited: 17 May 2017 14:31
Last Modified: 13 Oct 2017 00:30
URI: http://eprints.nottingham.ac.uk/id/eprint/42916

Actions (Archive Staff Only)

Edit View Edit View