Genetic analysis of adult plant,quantitative resistance to stripe rust in wheat landrace Wudubaijian in multi-environment trials  

作　　者：CHAO Kai-xiang WU Cai-juan LI Juan WANG Wen-li WANG Bao-tong LI Qiang 

机构地区：[1]State Key Laboratory of Crop Stress Biology for Arid Areas,College of Plant Protection,Northwest A&F University,Yangling 712100,P.R.China [2]College of Chemistry Biology and Environment,Yuxi Normal University,Yuxi 653100,P.R.China

出　　处：《Journal of Integrative Agriculture》2022年第8期2305-2318,共14页农业科学学报（英文版）

基　　金：supported by the Science and Technology Partnership Program,Ministry of Science and Technology of China(KY202002018);the National Key R&D Program of China(2016YFD0300705 and 2018YFD0200403);the Natural Science Basic Research Plan in Shaanxi Province of China(2019JZ-17);the Open Project Program of State Key Laboratory of Crop Stress Biology for Arid Areas,Northwest A&F University,China(CSBAA2019007)。

摘　　要：Stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most destructive diseases on wheat worldwide.Wudubaijian,a wheat landrace released from Gansu Province in China since 1950,exhibits adult-plant resistance to stripe rust for several decades.To elucidate the genetic basis of stripe rust resistance,Wudubaijian was crossed with the high susceptible cultivar Mingxian 169,and stripe rust tests of both parents and the F2:3 lines were conducted in four environments of Yangling and Tianshui in 2015 and 2016,respectively.The relative area under disease progress curve(rAUDPC)of Mingxian 169/Wudubaijian F_(2:3) lines showed that the resistance of Wudubaijian was controlled by quantitative trait loci(QTL).Combined with phenotypic data and molecular markers,two stable QTLs were identified in Wudubaijian.QYrwdbj.nwafu-5A with the phenotypic variance of 15.02-40.26% was located between 5AS1-0.40-0.75 and 5AS3-0.75-0.98 of chromosome 5AS,and QYrwdbj.nwafu-2B.1 with the phenotypic variance of 9.54-10.40%was located in the bin C-2BS1-0.53 of chromosome 2BS.Through the location of flanking markers and epistasis analysis,QYrwdbj.nwafu-5A may be a new major QTL that can be used in conjunction with other stripe rust resistance genes(QTLs).

关 键 词：Triticum aestivum Puccinia striiformis f.sp.tritici adult-plant resistance QTL mapping 

分 类 号：S435.121.42[农业科学—农业昆虫与害虫防治]