风信子观察日记Journal of Integrative Agriculture2019,18(1):108-114
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RESEARCH ARTICLE
粉丝蒸虾的做法大全Molecular mapping of stripe rust resistance gene YrH9017in wheat-Psathyrostachys huashanica introgression line H90仃-14-16-5-3
MA Dong-fang1,2*,HOU Lu1*,SUN Cai2*,ZHANG Xing2,YIN Jun-liang2,GUO Qing-yun1,ZHU Yong-xing2
打的英文>南溪水库1Qinghai Academy of Agriculture and Forestry Sciences,Qinghai University/Key Laboratory of Agricultural Integrated Pest Management,Qinghai Province/State Key Laboratory of Plateau Ecology and Agriculture,Qinghai University,Xining810016, P.R.China
2Hubei Collaborative Innocvtion Center for Grain Industry/College of Agriculture,Yangtze University,Jingzhou434023,P.R.China
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Abstract
Several new stripe rust pathogen races emerged in the wheat growing regions of China in recent years.The races were virule n t to most of the desig nated wheat edli ng resista n ee gen e s.Thus,it is necessary and worthwhile to ide n tify new valuable resista n t materials for the sake of diversify!ng resista n t sources,pyramidi n g differe n t resista nee genes and achievi n g durable resista nee.Here,we ide ntified the resista nee gene,temporarily designated as YrH9017,in vj^eat-Psathyrostachys huashanica introgression line H9017-14-16-5-3.A total of146F2plants and their derived F23families in a cross of Mingxian169 and H9017-14-16-5-3were ud to evaluate edli n g stripe rust respon and as a mappi n g populati o n.Fin a lly,we constructed a genetic map including eight simple quenee repeat(SSR)markers and expresd quence tag(EST) markers.YrH9017\nqs located on the long arm of chromosome2Aand cloly linked with two EST-quenee tagged site (EST-STS)markers BG604577and BE471201at1.3and1.8cM distance,respectively.The two clost markers could be ud for marker-assisted lection of YrH9017'\n breeding.
Keywords:Puccinia striiformis,Psathyrostachys huashanica,stripe rust,molecular mapping,resistance gene
1.Introduction
Stripe(yellow)rust(YR),caud by Puccinia striiformis itici Erikss(Pst),is a highly damaging dia of
Received3April,2018Accepted19July,2018
MA Dong-fa ng,E-mail:;HOU Lu, E-mail:;SUN Cai,E-mail:SUNCAI1211 @;Correspondence GUO Qing-yun,Tel:+86-971-5311056,E-mail:;ZHU Yong-xing,Tel: +86-716-8066302,E-mail:
The authors contributed equally to this study.
©2019CAAS.Publishing rvices by Elvier B.V.All rights rerved.
doi:10.1016/S2095-3119(18)62048-9wheat(Triticum aestivum L.)globally(Chen2009).Regular epidemics of this plant dia can diminish wheat yields and grain quality.YR is widely epidemic in t
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he largest wheat growing region of Chinm,which caus wheat yield reduction of10-30%.Under specific climate conditions for the fungus, the degree of loss can be even up to100%.In the ca of the widespread dispersal of urediniospores,stripe rust will be prevale n t in a wide range of areas,which can rapidly destroy leaf tissue and greatly diminish grain product!on and quality(Jiao et al.2017).To date,China has suffered ve n nation w ide epidemics,which have great impact on the wheat yield(Li etal.2011;Juliana etal.2017).Although the dia can be controlled by appropriate u of fungicides, this countermeasure is expensive and ineffective if it is not completed at the reas o n a ble time.Gen etic resista n ee breeding is the most effective,economical,and ecologically世通华纳
