Journal of Integrative Agriculture ›› 2017, Vol. 16 ›› Issue (02): 435-444.DOI: 10.1016/S2095-3119(16)61361-8

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  • 收稿日期:2016-02-01 出版日期:2017-02-20 发布日期:2017-01-31

QTL mapping revealed TaVp-1A conferred pre-harvest sprouting resistance in wheat population Yanda 1817×Beinong 6

ZHOU Sheng-hui1, FU Lin1, WU Qiu-hong2, CHEN Jiao-jiao1, CHEN Yong-xing1, XIE Jing-zhong1, WANG Zhen-zhong3, WANG Guo-xin1, ZHANG De-yun1, LIANG Yong1, ZHANG Yan1, YOU Ming-shan1, LIANG Rong-qi1, HAN Jun4, LIU Zhi-yong1, 2   

  1. 1 State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100193, P.R.China

    2 Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, P.R.China

    3 China Rural Technology Development Center, Beijing 100045, P.R.China

    4 College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, P.R.China

  • Received:2016-02-01 Online:2017-02-20 Published:2017-01-31
  • Contact: LIU Zhi-yong, Tel: +86-10-64806422, E-mail: zyliu@genetics.ac.cn
  • About author:ZHOU Sheng-hui, E-mail: zhoushenghui826@gmail.com
  • Supported by:

    This work was financially supported by the National Natural Science Foundation of China (31271710, 31301312).

Abstract: Pre-harvest sprouting (PHS) occurs frequently in most of the wheat cultivation area worldwide, which severely reduces yield and end-use quality, resulting in substantial economic loss.  In this study, quantitative trait loci (QTL) for PHS resistance were mapped using an available high-density single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) genetic linkage map developed from a 269 recombinant inbred lines (RILs) population of Yanda 1817×Beinong 6.  Using phenotypic data on two locations (Beijing and Shijiazhuang, China) in two years (2012 and 2013 harvesting seasons), five QTLs, designated as QPhs.cau-3A.1, QPhs.cau-3A.2, QPhs.cau-5B, QPhs.cau-4A, and QPhs.cau-6A, for PHS (GP) were detected by inclusive composite interval mapping (ICIM) (LOD≥2.5).  Two major QTLs, QPhs.cau-3A.2 and QPhs.cau-5B, were mapped on 3AL and 5BS chromosome arms, explaining 6.29–21.65% and 4.36–5.94% of the phenotypic variance, respectively.  Precise mapping and comparative genomic analysis revealed that the TaVp-1A flanking region on 3AL is responsible for QPhs.cau-3A.2.  SNP markers flanking QPhs.cau-3A.2 genomic region were developed and could be used for introgression of PHS tolerance into high yielding wheat varieties through marker-assisted selection (MAS).

Key words: wheat, pre-harvest sprouting, quantitative trait loci, SNP, TaVp-1A