Mapping of quantitative adult plant field resistance to leaf rust and stripe rust in two European winter wheat populations reveals co-location of three QTL conferring resistance to both rust pathogens.
Mapping of quantitative adult plant field resistance to leaf rust and stripe rust in two European winter wheat populations reveals co-location of three QTL conferring resistance to both rust pathogens.
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DOI：
10.1007/s00122-014-2357-0
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发表时间：
2014-09
影响因子：
5.4
通讯作者：
Buerstmayr, Hermann
中科院分区：
文献类型：
--
作者：
Buerstmayr, Maria;Matiasch, Lydia;Mascher, Fabio;Vida, Gyula;Ittu, Marianna;Robert, Olivier;Holdgate, Sarah;Flath, Kerstin;Neumayer, Anton;Buerstmayr, Hermann
我们检测到几个，最有可能的新QTL的成年植物抗锈病。其中3个QTL同时提高了对叶锈病和条锈病的抗性，表明该QTL具有广谱抗性。 小麦锈病（柄锈菌属）是小麦的毁灭性真菌病害抗病品种的应用在锈病综合治理中起着核心作用。耐久性的阻力将是首选，但很难分析。奥地利冬小麦品种Capo于1989年发布，并在20多年的时间里在大面积种植，并保持了良好的抗叶锈病和条锈病水平。在田间重复试验中，对Capo × Arina和Capo × Furore两个双亲作图群体进行了成株期叶锈病和条锈病严重程度的多重环境测定。利用DArT和SSR标记定位了与叶锈病和条锈病严重程度相关的数量性状位点。在多个环境中检测到5个与叶锈病抗性相关的QTL，分别命名为QLr.ifa-2AL、QLr. ifa-2BL、QLr.ifa-2BS、QLr.ifa-3BS和QLr.ifa-5 BL，5个与条锈病抗性相关的QTL为QYr.ifa-2AL、QYr.ifa-2BL、QYr.ifa-3AS、QYr.ifa-3BS和QYr.ifa-5A。除QYr.ifa-3AS、QLr.ifa-5 BL外，其余QTL均由Capo贡献。2AL、2BL和3BS上的抗叶锈病和条锈病QTL定位在同一染色体上，表明它们可能是紧密连锁的基因，也可能是基因多效性作用。这3个多重抗病QTL（QLr.ifa-2AL/QYr.ifa-2AL、QLr. ifa.2BL/QYr.ifa-2BL、QLr.ifa-3BS/QYr. ifa.3BS）可能为条锈病和叶锈病提供新的抗源。Capo的持久抗性显然取决于几个基因的组合。所述种质、QTL和标记可用于同时改良对叶锈病和条锈病的抗性。本文的在线版本（doi：10.1007/s 00122 -014-2357-0）包含补充材料，可供授权用户使用。
We detected several, most likely novel QTL for adult plant resistance to rusts. Notably three QTL improved resistance to leaf rust and stripe rust simultaneously indicating broad spectrum resistance QTL. The rusts of wheat (Puccinia spp.) are destructive fungal wheat diseases. The deployment of resistant cultivars plays a central role in integrated rust disease management. Durability of resistance would be preferred, but is difficult to analyse. The Austrian winter wheat cultivar Capo was released in the 1989 and grown on a large acreage during more than two decades and maintained a good level of quantitative leaf rust and stripe rust resistance. Two bi-parental mapping populations: Capo × Arina and Capo × Furore were tested in multiple environments for severity of leaf rust and stripe rust at the adult plant stage in replicated field experiments. Quantitative trait loci associated with leaf rust and stripe rust severity were mapped using DArT and SSR markers. Five QTL were detected in multiple environments associated with resistance to leaf rust designated as QLr.ifa-2AL, QLr.ifa-2BL, QLr.ifa-2BS, QLr.ifa-3BS, and QLr.ifa-5BL, and five for resistance to stripe rust QYr.ifa-2AL, QYr.ifa-2BL, QYr.ifa-3AS, QYr.ifa-3BS, and QYr.ifa-5A. For all QTL apart from two (QYr.ifa-3AS, QLr.ifa-5BL) Capo contributed the resistance improving allele. The leaf rust and stripe rust resistance QTL on 2AL, 2BL and 3BS mapped to the same chromosome positions, indicating either closely linked genes or pleiotropic gene action. These three multiple disease resistance QTL (QLr.ifa-2AL/QYr.ifa-2AL, QLr.ifa.2BL/QYr.ifa-2BL, QLr.ifa-3BS/QYr.ifa.3BS) potentially contribute novel resistance sources for stripe rust and leaf rust. The long-lasting resistance of Capo apparently rests upon a combination of several genes. The described germplasm, QTL and markers are applicable for simultaneous resistance improvement against leaf rust and stripe rust. The online version of this article (doi:10.1007/s00122-014-2357-0) contains supplementary material, which is available to authorized users.
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影响因子：
3.8
作者：
HALEY, CS;KNOTT, SA
通讯作者：
KNOTT, SA
影响因子：
1.9
作者：
Bansal, Urmil K.;Arief, Vivi N.;Bariana, Harbans S.
通讯作者：
Bariana, Harbans S.
影响因子：
1.9
作者：
Bansal, U. K.;Hayden, M. J.;Bariana, H. S.
通讯作者：
Bariana, H. S.
影响因子：
5.4
作者：
Hiebert, Colin W.;Thomas, Julian B.;Fox, Stephen L.
通讯作者：
Fox, Stephen L.
影响因子：
3.1
作者：
DYCK, PL;KERBER, ER;LUKOW, OM
通讯作者：
LUKOW, OM