Molecular Marker Based Design for Breeding Wheat Lines with Multiple Resistance and Superior Quality

	Molecular Marker Based Design for Breeding Wheat Lines with Multiple Resistance and Superior Quality
	Liu, Tao; Fedak, George; Zhang, Lianquan; Zhou, Rangrang; Chi, Dawn; Fetch, Tom; Hiebert, Colin; Chen, Wenjie; Liu, Baolong; Liu, Dengcai
刊名	PLANT DISEASE
	2020
卷号	104 期号:10
关键词	Ug99 disease resistance gene pyramiding HMW-GS stripe rust
英文摘要	There has not been a major wheat stem rust epidemic worldwide since the 1970s, but the emergence of race TTKSK of Puccinia graminis f. sp. tritici in 1998 presented a great threat to the world wheat production. Single disease-resistance genes are usually effective for only several years before the pathogen changes genetically to overcome the resistance. Stripe rust caused by Puccinia striiformis f. sp. tritici (Pst) is one of the most common and persistent wheat diseases worldwide. The development of varieties with multiple resistance is the most economical and effective strategy for preventing stripe rust and stem rust, the two main rust diseases constraining wheat production. Plateau 448 has been widely used in the spring wheat growing region in northwest China, but it has become susceptible to stripe rust and is susceptible to TTKSK. To produce more durable resistance to race TTKSK as well as to stripe rust, four stem rust resistance genes (Sr33, Sr36, Sr-Cad, and Sr43) and three stripe rust resistance genes (Yr5, Yr18, and Yr26) were simultaneously introgressed into Plateau 448 to improve its stem rust (Ug99) and stripe rust resistance using a marker-assisted backcrossing strategy combined with phenotypic selection. We obtained 131 BC1F5 lines that pyramided two to four Ug99 resistance genes and one to two Pst resistance genes simultaneously. Thirteen of these lines were selected for their TTKSK resistance, and all of them exhibited near immunity or high resistance to TTKSK. Among the 131 pyramided lines, 95 showed high resistance to mixed Pst races. Nine lines exhibited not only high resistance to TTKSK and Pst but also better agronomic traits and high-molecular-weight glutenin subunit compositions than Plateau 448.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/60234]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Liu, Tao,Fedak, George,Zhang, Lianquan,et al. Molecular Marker Based Design for Breeding Wheat Lines with Multiple Resistance and Superior Quality[J]. PLANT DISEASE,2020,104(10).
APA	Liu, Tao.,Fedak, George.,Zhang, Lianquan.,Zhou, Rangrang.,Chi, Dawn.,...&Zhang, Bo.(2020).Molecular Marker Based Design for Breeding Wheat Lines with Multiple Resistance and Superior Quality.PLANT DISEASE,104(10).
MLA	Liu, Tao,et al."Molecular Marker Based Design for Breeding Wheat Lines with Multiple Resistance and Superior Quality".PLANT DISEASE 104.10(2020).