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长江下游麦区新育成品种(系)3种主要病害的抗性鉴定及抗病基因/QTL的分子检测 被引量:5
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作者 吕国锋 别同德 +7 位作者 王慧 赵仁慧 范金平 张伯桥 吴素兰 王玲 汪尊杰 高德荣 《作物学报》 CAS CSCD 北大核心 2021年第12期2335-2347,共13页
小麦赤霉病、白粉病和黄花叶病是长江下游麦区小麦生产的主要病害。本研究对长江下游麦区新育成49个品种(系)的上述3种病害进行抗性鉴定,同时利用与抗赤霉病主效QTL Fhb1和QFhs.crc-2D、抗白粉病基因Pm21以及抗黄花叶病主效QTL QYm.nau-... 小麦赤霉病、白粉病和黄花叶病是长江下游麦区小麦生产的主要病害。本研究对长江下游麦区新育成49个品种(系)的上述3种病害进行抗性鉴定,同时利用与抗赤霉病主效QTL Fhb1和QFhs.crc-2D、抗白粉病基因Pm21以及抗黄花叶病主效QTL QYm.nau-5A.1和QYm.nau-2D连锁的分子标记检测试验品种3种病害抗病基因/QTL组成。结果显示,49.0%的品种赤霉病抗性达中抗以上,32.6%的品种对白粉病免疫或抗,44.9%的品种抗黄花叶病。30.6%和73.6%的试验品种分别含有抗赤霉病主效QTL Fhb1和QFhs.crc-2D,宁麦9号和扬麦158及其衍生品种分别是Fhb1和QFhs.crc-2D的主要载体品种;28.6%的品种含抗白粉病基因Pm21,镇麦9号和扬麦18及其衍生品种为Pm21的主要载体品种;分子检测含抗黄花叶病主效QTL QYm.nau-5A.1和QYm.nau-2D的品种比例均为24.5%,宁麦9号和苏麦6号及其衍生品种分别是QYm.nau-5A.1和QYm.nau-2D的主要载体品种。宁麦9号和扬麦158衍生品种在小麦抗赤霉病和黄花叶病基因/QTL的组成存在分化。结果为长江下游麦区小麦抗病分子育种提供了重要参考。 展开更多
关键词 小麦 品种 抗病qtl/基因 分子鉴定
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Molecular and Physical Mapping of Powdery Mildew Resistance Genes and QTLs in Wheat: A Review 被引量:7
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作者 Jun GUO Cheng LIU +8 位作者 Shengnan ZHAI Haosheng LI Aifeng LIU Dungong CHENG Ran HAN Jianjun LIU Lingrang KONG Zhendong ZHAO Jianmin SONG 《Agricultural Science & Technology》 CAS 2017年第6期965-970,共6页
Wheat powdery mildew (Pro) is a major disease of wheat worldwide. During the past years, numerous studies have been published on molecular mapping of Pm resistance gene(s) in wheat. We summarized the relevant find... Wheat powdery mildew (Pro) is a major disease of wheat worldwide. During the past years, numerous studies have been published on molecular mapping of Pm resistance gene(s) in wheat. We summarized the relevant findings of 89 major re- sistance gene mapping studies and 25 quantitative trait loci (QTL) mapping studies. Major Pm resistance genes and QTLs were found on all wheat chromosomes, but the Pm resistance genes/QTLs were not randomly distributed on each chromosome of wheat. The summarized data showed that the A or B genome has more major Pm resistance genes than the D genome and chromosomes 1A, 2A, 2B, 5B, 5D, 6B, 7A and 7B harbor more major Pm resistance genes than the other chromosomes. For adult plant resistance (APR) genes/QTLs, B genome of wheat harbors more APR genes than A and D genomes, and chromo- somes 2A, 4A, 5A, 1B, 2B, 3B, 5B, 6B, 7B, 2D, 5D and 7D harbor more Pm resistance QTLs than the other chromosomes, suggesting that A genome except 1A, 3A and 6A, B genome except 4B, D genome except 1D, 3D, 4D, and 6D play an impor- tant role in wheat combating against powdery mildew. Furthermore, Pm resistance genes are derived from wheat and its rela- tives, which suggested that the resistance sources are diverse and Pm resistance genes are diverse and useful in combating against the powdery mildew isolates. In this review, four APR genes, Pm38/Lr34/Yr18/Sr57, Pm46/Lr67/Yr46/Sr55, Pm?/Lr27/Yr30/ SY2 and Pm39/Lr46/Yr29, are not only resistant to powdery mildew but also effective for rust diseases in the field, indicating that such genes are stable and useful in wheat breeding programmes. The summarized data also provide chromosome locations or linked markers for Pm resistance genes/QTLs. Markers linked to these genes can also be utilized to pyramid diverse Pm resis- tance genes/QTLs more efficiently by marker-assisted selection. 展开更多
关键词 Wheat powdery mildew Molecular mapping Major Pm resistance genes Quantitative trait loci qtl Marker-assisted selection
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