文献类型： 外文期刊
作者： Jin, Xiaojie 1 ; Chi, Dawn 2 ; Wolfe, Danielle 2 ; Hiebert, Colin 3 ; Fetch, Tom 3 ; Cao, Wenguang 2 ; Xue, Allen 2 ; Humphreys, Gavin 2 ; Fedak, George 2 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Food Crops, Hubei Key Lab Food Crop Germplasm & Genet Improve, Wuhan 430064, Peoples R China
2.Agr & Agri Food Canada, Ottawa Res & Dev Ctr, Ottawa, ON K1A 0C6, Canada
3.Agr & Agri Food Canada, Morden Res & Dev Ctr, Morden, MB R6M 1Y5, Canada
关键词： Ug99; gene pyramiding; doubled haploids; MAS
期刊名称：CANADIAN JOURNAL OF PLANT SCIENCE （ 影响因子：1.375； 五年影响因子：1.524 ）
ISSN： 0008-4220
年卷期： 2022 年 102 卷 3 期
页码：
收录情况： SCI
摘要： To develop wheat germplasm with resistance to race TTKSK of stem rust, five stem rust resistance genes were used to produce pyramids with up to 4 Sr genes of various combinations by marker-assisted selection (MAS) and doubled haploid (DH) technology. Thirteen desired pyramids with 2 to 4 of the Sr genes were recovered, and wheat cultivar Hoffman was improved by stacking Sr35 and Sr36. TTKSK resistance test showed that pyramided lines with three or four genes plus improved Hoffman with Sr35+Sr36 were all immune to TTKSK. This type of germplasm will be a useful tool for the production of cultivars with long-term sustainability.
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